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1
Anh, Le Hung. "REUSE OF A CLOSED LANDFILL SITE FOR INSTALLATION AND OPERATION OF A BIOMASS UTILIZATION PLANT." Vietnam Journal of Science and Technology 54, no. 4B (March 22, 2018): 170. http://dx.doi.org/10.15625/2525-2518/54/4b/12038.
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The professional management of landfills during operation and after landfill capping is an important task to prevent environmental impacts. Landfill maintenance after closure can become economically favourable if landfill sites can be reused. Several approaches and experiences for reuse of capped landfills exist for example in livestock farming or installation and operation of solar power plants. Also the utilization for spare time activities after green capping and recreation or the industrial reuse for the development of a waste utilization plant is a common practice in Europe. The feasibility of reuse options depend on the site conditions including size and location of the landfill, the climatic conditions and the interests of the involved stakeholders. For the urban landfill site Gò Cát in Ho Chi Minh City (HCMC) experts from Germany and Vietnam developed a variant assessment for the preferred reuse options. One of three investigated options is considering the reuse of the landfill site for the development of a biomass utilization plant. In terms of the above described approach for Gò Cát the landfill operator is strongly involved in the landfill closure and long term maintenance works (leachate treatment, landfill gas utilization). Moreover, the operator can reuse the landfill site for an additional or new business. The design and operation criteria for the biomass utilization plant and best practice examples are presented. Beside the economic evaluation results of water and landfill gas balance will be discussed.
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Keenan, Seth, Yana Nec, and Greg Huculak. "Landfill Gas Flow — Effects of Asymmetry." Journal of Solid Waste Technology and Management 47, no. 1 (February 1, 2021): 188–203. http://dx.doi.org/10.5276/jswtm/2021.188.
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Waste disposal is the responsibility of cities throughout the world. The most common method in North America is to bury waste in landfills. Landfill operators comply with regulations to control hazardous emissions known as landfill gas (LFG). The gas is extracted via horizontal or vertical wells and removed from the site. This study examines arrays of horizontal wells placed side by side or stacked, and resultant landfill gas flux between adjacent cells. A landfill's lifetime often sees changes in the number, relative location and efficacy of wells. The ability to predict the response of an array of wells to variation in a single well's fu nctionality is an essential aspect of landfill design and operation. The integrated normal flux between cells is identified as a salient quantity required to construct such prediction models. Numerical solution of flow equations reveals a stunningly simple dependence of the flux on the relative suction strength of proximate cells in a wide range of operational conditions. The flux is one of scarcely few parameters accessible in the field with relative ease and certainty, and thus traceable over time. This property makes the proposed models easy to construct, implement and adjust in practice in custom configurations.
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Umar, Muhammad, Hamidi Abdul Aziz, and Mohd Suffian Yusoff. "Variability of Parameters Involved in Leachate Pollution Index and Determination of LPI from Four Landfills in Malaysia." International Journal of Chemical Engineering 2010 (2010): 1–6. http://dx.doi.org/10.1155/2010/747953.
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Landfill sites are potential sources of human and environmental hazards. Leachate produced form these waste dumping sites is heterogeneous and exhibits huge temporal and seasonal variations. Leachate pollution index (LPI) provides an overall pollution potential of a landfill site. The parameters required to calculate LPI from a landfill site are discussed in terms of their variations over time, and their significance has been highlighted in the context of LPI. The LPI values of two semiaerobic and two anaerobic landfill sites in Malaysia have been calculated in this study. Pulau Burung Landfill Site (PBLS) was found to have the highest LPI score while Ampang Jajar Landfill Site (AJLS) showed the lowest LPI as compared to other landfills. It is concluded that LPI value can be used as a tool to assess the leachate pollution potential from landfill sites particularly at places where there is a high risk of leachate migration and pollution of groundwater.
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Calic, Natasa, and Mirjana Ristic. "Vinca landfill leachate characteristics prediction by the leaching method." Chemical Industry 60, no. 7-8 (2006): 171–75. http://dx.doi.org/10.2298/hemind0608171c.
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Under the newly implemented waste management policy in European Union countries, sanitary landfilling constitutes the fourth and the least preferred of the alternative management options for the disposal of solid urban wastes. Landfills generate emissions over long periods, often longer than a lifetime. The longest lasting emission is leachate: leachate production and management is now recognized as one of the greatest problems associated with the environmentally sound operation of sanitary landfills. These liquid wastes can cause considerable pollution problems by contacting the surrounding soil, ground or surface waters and, are therefore considered major pollution hazards unless precautionary measures are implemented. Landfill leachate characterization is a critical factor in establishing a corresponding effective management strategy or treatment process. This paper summarizes leachate quality indicators, and investigates the temporal variation of leachate quality from municipal solid waste. The toxicity of leachates from the municipal solid waste landfill "Vinca" in Belgrade, the capital of Serbia, was characterized using toxicity characteristics leaching procedures (TCLP). The "Vinca" landfill was established in 1978 as one of several municipal landfills. Since the 1990-ies the "Vinca" landfill has been the only operating landfill servicing the Belgrade Metropolitan area, the biggest city in Serbia, with 1,576,124 inhabitants in the larger-city area, and 1,273,651 inhabitants in the inner-city area. The total average amount of solid wastes deposited in the landfill is estimated to be 1100 tons/day. The landfill site is not lined and the tributary flows through the centre of the site-in some places directly under the mass of refuse. No consideration has been given to the protection of ground waters, surface runoff or drainage. Local authorities plan to expand the landfill by 0.4 km2 to a total of 1.3 km Chemical analysis was performed on the samples and the temporal variation of several parameters was monitored including pH, COD, chlorides, sulfates, nitrates, ammonia nitrogen, hardness, and heavy metals. The COD and pH were related to the biological activity within the landfill and the results indicated differences between the samples due to waste age. The concentrations of heavy metals, sulfates, nitrates, chlorides and ammonia nitrogen in the leachate were low, indicating their initially low amount in landfilled waste or their flushing with moisture contributing to a reduction in their concentrations.
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Natalia, Sliusar, Aleksandra Krutova, Yulia Mozzhegorova, and Stepan Polygalov. "THE POSSIBILITY OF SECONDARY RESOURCE RECOVERY DURING WASTE DISPOSAL SITE RECLAMATION." Detritus, no. 14 (February 26, 2021): 108–17. http://dx.doi.org/10.31025/2611-4135/2021.14058.
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Nowadays, Russian waste management policies demand the closure and elimination of dumpsites and landfills historically located in the vicinity of populated areas, with no reference to geological and hydrological conditions. Landfill mining is one of the technical solutions for old dumpsite reclamation. The unique feature of this study is the application of an integrated scenario approach in the evaluation of landfill mining projects. This approach is based on a scenario matrix that compares costs and revenues for each scenario, depending on resource and technological capabilities on the one hand, and prevailing economic conditions on the other. It was revealed that for large dumpsites the cost of landfill mining project with waste excavation and redisposal, using landfill soil material, and the recovery of secondary raw materials is several times higher than the cost of baseline dumpsite reclamation. This study shows that implementation of landfill mining projects is feasible for relatively small dumpsites with a low object base area load. The age of a landfill, among the other parameters, has an impact on the economic efficiency of landfill mining project. According to the study the older the landfill is, the higher the content of landfill soil and the lower the amount of secondary raw materials available. As a result, the efficiency and cost of sorting technologies for soil material and secondary raw materials are key factors that determine the economic feasibility of landfill mining during waste disposal site reclamation. Within each scenario, the factors that most influence the total cost are identified.
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Tengku Izhar, Tengku Nuraiti, Zaity Syazwani Mohd Odli, Irnis Azura Zakarya, Farah Naemah Mohd Saad, Norlia Mohamad Ibrahim, Roshazita Che Amat, and Tan Ley Binn. "A Study on Hydrogen Sulphide as Potential Tracer in Landfill Gas Monitoring." Advanced Materials Research 684 (April 2013): 189–93. http://dx.doi.org/10.4028/www.scientific.net/amr.684.189.
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Municipal solid waste (MSW) landfills are one of the major source of hydrogen sulphide (H2S) which is the offensive odours potentially creating annoyance in adjacent communities. This project focuses on H2S emission from landfills in Perlis, Malaysia. Landfill gas (LFG) samples were collected and analyzed accordance with NIOSH method 6013. The mean concentrations of H2S in Kuala Perlis Landfill and Padang Siding Landfill are 210.68 ppm and 242.85 ppm respectively. High concentrations of H2S may be a concern for employees working on the landfill site. These results indicate that workers should use proper personal protection at landfill when involved in excavation, landfill gas collection, and refuse compaction. The formation of H2S most likely to be contributed by the biological conversion of sulfate from gypsum-rich soils and landfill wastewater treatment sludges by sulfate-reducing bacteria (SRB) which can utilize dissolved sulfate as an electron acceptor. H2S is conveniently detected by hand held analyzer, such Jerome meter, landfill gas analyzer. In the organic range, in the ease of detection range in the dispersion rate within the landfill site, the monitored H2S gas form a very noticeable concentration with the travelling wind direction. It proved that the dispersion rate of H2S are suitable as tracer to detect route of travelling in a certain distance.
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Suna Erses, A., and T. T. Onay. "Accelerated landfill waste decomposition by external leachate recirculation from an old landfill cell." Water Science and Technology 47, no. 12 (June 1, 2003): 215–22. http://dx.doi.org/10.2166/wst.2003.0649.
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This research is focused on the management of moisture regime for a young landfill site in terms of leachate recirculation which entails the containment, collection and reinjection of leachate back into the landfill to promote in situ anaerobic biological treatment. Moreover, an innovative leachate management strategy was developed by using leachate recirculation from a mature landfill site into a young landfill site to provide accelerated waste stabilization. For this purpose, two reactors simulating young and old landfills were used in the laboratory. These reactors were loaded with shredded and compacted municipal solid waste with a typical composition determined for Istanbul Region. Both reactors were operated in a constant temperature room at 32°C to enhance the growth of anaerobic microorganisms. Moreover, water was added to the reactors in order to simulate the annual rainfall. The reactor having the properties of old landfills was used as a control reactor. The reactor which represented the characteristics of young landfill was operated under four operational stages to enhance the activity of methanogenic population and accelerate waste stabilization. Results of this study indicated that the utilization of leachate recirculation enhanced waste stabilization in the young landfill by increasing the uniformity, and providing additional substrate and nutrients. Additions of buffer solutions of KOH and Na2CO3 together with leachate recirculation enhanced further waste stabilization and prevented possible acid inhibition. The utilization of external leachate recycled from the old landfill having desired acclimated anaerobic microorganisms, low organic content and higher buffer capacity into a young landfill could be a promising leachate management strategy for faster and controlled waste stabilization.
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Spigolon, Luciana MG, Mariana Giannotti, Ana P. Larocca, Mario AT Russo, and Natália da C. Souza. "Landfill siting based on optimisation, multiple decision analysis, and geographic information system analyses." Waste Management & Research: The Journal for a Sustainable Circular Economy 36, no. 7 (June 20, 2018): 606–15. http://dx.doi.org/10.1177/0734242x18773538.
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Sanitary landfill remains the most common methodology for final treatment and disposal of municipal solid waste worldwide, the cost per tonne depends on its scale. The bigger the landfill, the cheaper the cost of treatment, so the consortium of municipalities is the solution to achieve an economic scale. However, the growth of waste production introduces pressure for adequate solutions and therefore has been increasing sanitary landfill site selection studies. This study proposes a methodology for siting sanitary landfills and optimising the transport of municipal solid waste for a locality in the state of São Paulo, Brazil. Environmental, social, and economic criteria were established. Their correlated attributes were categorised into suitability levels and weighted according to multiple decision analysis. The data were organised and mapped within a geographic information system. Considering sites where landfills are prohibited, two scenarios were generated. The Mixed-Integer Quadratic Programming mathematical model is used to minimise the costs of transporting municipal solid waste and operating sanitary landfills. In Scenario 1, the results indicated that 64% of the area was suitable as a potential sanitary landfill site, 9% of the area exhibited medium suitability, and 27% of the area was classified as restricted. In Scenario 2, the results indicated that 25% of the area was suitable as a potential sanitary landfill site, 4% of the area had medium suitability, and 71% of the area was classified as restricted. The optimal solutions for Scenario 1 and Scenario 2 enabled sites to be determined for five landfills and four landfills, respectively.
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Yazdani, M., S. M. Monavari, G. A. Omrani, M. Shariat, and S. M. Hosseini. "Landfill site suitability assessment by means of geographic information system analysis." Solid Earth 6, no. 3 (July 30, 2015): 945–56. http://dx.doi.org/10.5194/se-6-945-2015.
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Abstract. Open dumping is the common procedure for final disposal of municipal solid waste (MSW) in Iran. Several environmental pollution and soil degradation problems were found as a consequence of poor planning of landfills. So recognition of the MSW landfill state is required to prevent environmental problems. The objective of this research was to study the suitability of existing municipal landfill sites using geographic information system methods. Tonekabon city in the west area of Mazandaran province, northern Iran, along the southern coast of the Caspian Sea, was chosen as a case study. In order to carry out this evaluation, two guidelines were used: Minnesota Pollution Control Agency (MPCA) and regional screening guidelines. The results indicate that the landfills were not located in suitable sites and also that there are few suitable locations to install the landfills.
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Carević, Ivana, Mikica Sibinović, Sanja Manojlović, Natalija Batoćanin, Aleksandar S. Petrović, and Tanja Srejić. "Geological Approach for Landfill Site Selection: A Case Study of Vršac Municipality, Serbia." Sustainability 13, no. 14 (July 13, 2021): 7810. http://dx.doi.org/10.3390/su13147810.
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One of the biggest problems of environmental protection in Serbia is landfills. It is often a case that the economic interests are predominant in the landfill sitting; thus, most landfills are not located according to standards. This study shows that detailed geological data assets combined with geographical modeling represents a reliable way to define and locate the landfill site. Geological evaluation is discussed in detail with regard to bedrock lithology, quaternary geology, geological structure, hydrogeology, surface runoff patterns, and topography. An approach combining geographical modeling and geology is presented for determining the sites suitable for landfill selection with respect to their geologic favorability. As opposed to numerous research papers on this topic, in the methodological procedure, special importance is devoted to the analysis of the geological criteria. In this way, it is significantly easier to determine the landfill area with the best characteristics due to geological structure and lithology which unequivocally and precisely indicates inadequate territories for candidate sites. The multicriteria decision analysis (MCDA) is based on geological criteria upgraded with road (primary, residential, secondary, and tertiary), settlements network, railway, airport, infrastructure, land use, hypsometry aquifer, wetland, and surface water. The score values are divided into four classes, i.e., restricted areas, suitable but avoid, suitable, and most suitable. Combining geographical modeling with geology led to the recognition of two locations to be most favorable for landfill site located in the most suitable area, which represents 25.3% of the study area.
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Yin, Qin, Haihong Yan, Xiaoya Guo, Yu Liang, Xingzhi Wang, Qian Yang, Shuqi Li, Xianqi Zhang, Yuexi Zhou, and Yuegang Nian. "Remediation Technology and Typical Case Analysis of Informal Landfills in Rainy Areas of Southern China." International Journal of Environmental Research and Public Health 17, no. 3 (January 31, 2020): 899. http://dx.doi.org/10.3390/ijerph17030899.
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A typical informal landfill in a rainy area of southern China was taken as an example in this study. The comprehensive control ideas and processes of the informal landfill site were systematically reviewed. The basic situation for the early stage of the government survey and investigation was provided, including a waste stock survey, water volume measurement, and a waste source survey. The main contents and key factors of a comprehensive investigation of the environmental quality status were briefly summarized. The water quality in the landfill, groundwater quality inside and outside of the site, and heavy metals in the bottom sediment were all determined. A low-cost practical landfill technology was explored to reduce the Chemical Oxygen Demand CODCr concentration of polyaluminum ferric chloride (PAFC), and NH4+-N was removed by calcium hypochlorite. Soil backfill was replaced, such that the informal landfill site was immobilized, which was perfectly suitable for this southern rainy area. This study proposes rules for a comprehensive improvement scheme for a landfill, and provides a reliable theoretical basis and practical experience for the treatment of similar informal landfills.
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Jurnal, Redaksi Tim. "PENGELOLAAN EMISI GAS LANDFILL (BIOGAS) SEBAGAI ENERGI TERBARUKAN." Sutet 7, no. 1 (December 20, 2018): 42–47. http://dx.doi.org/10.33322/sutet.v7i1.166.
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The final landfill is a place to hoard the garbage and the bin gets the last treatment. The final disposal site may be either deep or field-shaped. In recent years, dumped end landfills have finally been converted to a public open space. Final waste disposal site is one of the biggest sources of landfill gas emissions in Indonesia. In the anaerobic process, the organic material decomposes and the landfill gas is produced. This gas then converges and rises regardless of the atmosphere. This becomes dangerous because it can cause an explosion, but it can also cause photochemical smog.
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Amalia Chusna, Noor, and Maryono Maryono. "Preliminary Evaluation of Method to Monitor Landfills Resilience against Methane Emission." E3S Web of Conferences 31 (2018): 05006. http://dx.doi.org/10.1051/e3sconf/20183105006.
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Methane emission from landfill sites contribute to global warming and un-proper methane treatment can pose an explosion hazard. Stakeholder and government in the cities in Indonesia been found significant difficulties to monitor the resilience of landfill from methane emission. Moreover, the management of methane gas has always been a challenging issue for long waste management service and operations. Landfills are a significant contributor to anthropogenic methane emissions. This study conducted preliminary evaluation of method to manage methane gas emission by assessing LandGem and IPCC method. From the preliminary evaluation, this study found that the IPCC method is based on the availability of current and historical country specific data regarding the waste disposed of in landfills while from the LandGEM method is an automated tool for estimating emission rates for total landfill gas this method account total gas of methane, carbon dioxide and other. The method can be used either with specific data to estimate emissions in the site or default parameters if no site-specific data are available. Both of method could be utilize to monitor the methane emission from landfill site in cities of Central Java.
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Detho, Amir Ali, Zawawi Daud, Saleem Raza Samo, Zohaib Khan, Dansish Ali Memon, and Halizah Awang. "Physicochemical Characteristics of Landfill Leachate from Simpang Renggam Landfill Site, Johor, Malaysia." Quaid-e-Awam University Research Journal of Engineering, Science & Technology 18, no. 02 (December 31, 2020): 82–88. http://dx.doi.org/10.52584/qrj.1802.13.
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The worldwide increasing amount of municipal solid waste causes a major problem in managing waste as well as requires an effective solution to manage the waste generation. In Malaysia, landfilling is the main alternative technique for managing solid waste. In the same way, the main advantage of having a landfill is that it is easy to operate and comparatively lower in cost. Thus, in Malaysia, total 296 municipal solid waste landfills are open to overcome this issue. Drawbacks of landfilling can includes; i) generation of noxious gases, ii) leachate wastewater contamination of both ground and surface water, iii) problems such as odor, noise, and dust, iv) attraction of disease vectors and, v) the requirement for considerable land area. This present research study focuses on the characterization of Simpang Renggam Landfill (SRLS) Site such as its organic constitutes (mg/L), Ammoniacal Nitrogen (mg/L), SS (mg/L), BOD5/COD, BOD5 (mg/L), and pH. All the analyzed results were compared with the past researchers’ researches and also were compared with Malaysian Environmental Quality Act 1974. From the results, it is concluded that the Simpang Renggam Landfill Site was characterized old (stabilized) landfill leachate wastewater with BOD5/COD > 0.1. For the SRL site, it is recommended that physical-chemical method is better fitted for the leachate wastewater treatment and the aerated lagoon technique does not support the treatment of aging leachate.
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Rajasekar, Adharsh, Raju Sekar, Eduardo Medina-Roldán, Jonathan Bridge, Charles K. S. Moy, and Stephen Wilkinson. "Next-generation sequencing showing potential leachate influence on bacterial communities around a landfill in China." Canadian Journal of Microbiology 64, no. 8 (August 2018): 537–49. http://dx.doi.org/10.1139/cjm-2017-0543.
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The impact of contaminated leachate on groundwater from landfills is well known, but the specific effects on bacterial consortia are less well-studied. Bacterial communities in a landfill and an urban site located in Suzhou, China, were studied using Illumina high-throughput sequencing. A total of 153 944 good-quality reads were produced and sequences assigned to 6388 operational taxonomic units. Bacterial consortia consisted of up to 16 phyla, including Proteobacteria (31.9%–94.9% at landfill, 25.1%–43.3% at urban sites), Actinobacteria (0%–28.7% at landfill, 9.9%–34.3% at urban sites), Bacteroidetes (1.4%–25.6% at landfill, 5.6%–7.8% at urban sites), Chloroflexi (0.4%–26.5% at urban sites only), and unclassified bacteria. Pseudomonas was the dominant (67%–93%) genus in landfill leachate. Arsenic concentrations in landfill raw leachate (RL) (1.11 × 103 μg/L) and fresh leachate (FL2) (1.78 × 103 μg/L) and mercury concentrations in RL (10.9 μg/L) and FL2 (7.37 μg/L) exceeded Chinese State Environmental Protection Administration standards for leachate in landfills. The Shannon diversity index and Chao1 richness estimate showed RL and FL2 lacked richness and diversity when compared with other samples. This is consistent with stresses imposed by elevated arsenic and mercury and has implications for ecological site remediation by bioremediation or natural attenuation.
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Makhadi, Rinae, Saheed A. Oke, and Olusola O. Ololade. "The Influence of Non-Engineered Municipal Landfills on Groundwater Chemistry and Quality in Bloemfontein, South Africa." Molecules 25, no. 23 (November 28, 2020): 5599. http://dx.doi.org/10.3390/molecules25235599.
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This study assessed the groundwater quality around two municipal solid waste landfill sites, in the city of Bloemfontein, Free State Province, South Africa. The two landfill sites are located in two contrasting geological terrains, with both lacking some basic facilities found in a well-designed landfill. A total of eight groundwater samples were collected from pollution monitoring boreholes near the two landfill sites, with five samples representing the northern landfill site and three samples representing the southern landfill site. The samples were collected in the autumn and winter seasons to assess any possible seasonal variations. They were analysed for physicochemical (pH, electrical conductivity (EC), total dissolve solids (TDS), chemical oxygen demand (COD) and total organic carbon (TOC)) and microbiological parameters (Escherichia coli, total coliform). The results of the analysis showed that the waters from both landfills were generally dominated by Ca, Mg, SO4, and HCO3 ions. Some of the major anions and cations in the water samples were above the South African National Standard (SANS241:2015) and World Health Organisation (WHO) permissible limits for drinking water. Majority of the boreholes had total dissolved solids and electrical conductivity values exceeding the SANS 241:2015 and WHO permissible limits. Piper trilinear plots for the two landfill sites showed that Ca(Mg)HCO3 water type predominates, but Ca(Mg)SO4 and Ca(Mg)Cl were also found. These water types were further confirmed with expanded Durov diagrams, indicating that that the boreholes represented a water type that is seldom found which is undergoing ion exchange, typical of sulphate contamination. From the SAR diagrams, boreholes in the northern landfill site had a high salinity hazard with only one borehole in the southern landfill site having a high salinity hazard. The geology was found to play a significant role in the distribution of contaminants into the groundwater systems in the study area. The study concluded that the northern landfill site had a poorer water quality in comparison to the southern landfill site based on the analysed physicochemical parameters. However, the southern landfill site showed significant microbial contamination, due to the elevated amount of E. coli and total coliform concentrations. The high permeability of the weathered dolerites in the northern landfill site might have enabled the percolation of contaminants into the groundwater resulting in the poorer water quality.
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Akyen, T., C. B. Boye, and Y. Y. Ziggah. "Landfill Lifespan Estimation: A Case Study." Ghana Mining Journal 17, no. 2 (December 13, 2017): 1–5. http://dx.doi.org/10.4314/gm.v17i2.1.
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Municipal Solid Waste (MSW) management is one of the most serious environmental challenges facing the world at large due to the decomposing effect from the toxic gases being released into the environment by the MSW. The siting of landfill in any environment is a vital consideration that must be looked at due to the many factors such as the lifespan of the landfill, site selection, design, construction, operation and management. For this reason, it is important to estimate the lifespan of landfill accurately so as to explore the risk involved in acquiring new lands for landfills. Moreover, it is also necessary to consider proper methodology for estimating the lifespan of landfills. Based on these factors enumerated, various researchers have performed several laboratory tests in order to conclude on appropriate model that could be used to predict the lifespan of modern landfills. Mathematical models or expressions have also been suggested in literature as an alternative approach to the estimation of landfills lifespan. This research used the future value of money equation to estimate the lifespan of the Aboso landfill in Tarkwa, Ghana. The result showed that the landfill could operate for the next twelve years before it could exhaust its usefulness. Keywords: Landfill, Municipal Solid Waste, Lifespan Estimation
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Chung, Woojin, Sukyoung Jung, and Soonwoong Chang. "The Influence of Waste Composition on Landfill Gas Generation in a Pilot-Scale Lysimeter." Applied Sciences 9, no. 21 (November 2, 2019): 4677. http://dx.doi.org/10.3390/app9214677.
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The Sudokwon landfill site in Korea, is one of the largest landfill sites in the world, and consists of a first landfill site and second landfill site. The second landfill site generates 3–30 times more H2S than that of the first landfill site. However, the cause of the increase in H2S has not been identified. In this study, the main causes of H2S concentration increase were investigated in the second landfill site in the Sudokwon landfill site. We classified wastes at the Sudokwon landfill site into seven types including Construction and demolition (C&D) debris waste. A lysimeter reactor was designed as a similar environment to the Sudokwon landfill site for simulation. In addition, the experiment was conducted under the same conditions. Three components and elements were analyzed to identify the composition of waste in the landfill site. Leachate was analyzed through a chemical oxygen demand and SO42− standard method. For landfill gas, a gas analyzer was used. The trend in the generation of leachate and landfill gas depending on waste composition at the landfill site was observed and the cause of the increase in H2S was examined. As a result, landfilling of C&D debris waste is recommended as a single landfill.
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Liu, Hailong, Xiang Luo, Xingyao Jiang, Chunyi Cui, and Zhen Huyan. "The Evaluation System of the Sustainable Development of Municipal Solid Waste Landfills and Its Application." Sustainability 13, no. 3 (January 22, 2021): 1150. http://dx.doi.org/10.3390/su13031150.
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Improving the understanding of the stabilization process is of great significance to guide the sustainable development of municipal solid waste (MSW) landfills. An evaluation system of the stabilization process of MSW landfills has been established. The indices of the evaluation system involve the degradation degree of MSW, the release of landfill gas production potential, and the settlement of landfills. Based on the biochemical-consolidation-solute migration coupled model, an evaluation method of the MSW landfill stabilization process is proposed by combining field tests with numerical simulation. The stabilization process of the Jiangcungou landfill in China is investigated by using the proposed method. The analyzed results show that the stabilization process of high kitchen waste content landfills can be divided into three stages, which is different from the stabilization process of landfills in developed countries. For the Jiangcungou landfill, the ratio of cellulose to lignin in MSW decreases rapidly during the fast degradation stage when obvious settlement occurs. During the slow degradation stage, the hydrolysis rate is slow and settlement develops slowly. When the landfill reaches the stabilization stage, the ratio of cellulose to lignin of MSW changes very slowly; most of the landfill gas potential has been released; the settlement stabilization is completed basically. The change processes of the three evaluation indices are different, of which the degradation stabilization index is the main one. According to the findings above, leachate recirculation is recommended to adjust the degradation environment in the landfill, which can be helpful to avoid acidification at the fast degradation stage. Temporary cover is suggested to improve landfill gas collection efficiency at the beginning of the stable methanogenic stage. The landfill site closure should be operated when the settlement rate is low.
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Sheng, Hui, Yinbang Ren, Man Huang, Zhenying Zhang, and Jiwu Lan. "Vertical Expansion Stability of an Existing Landfill: A Case Study of a Landfill in Xi’an, China." Advances in Civil Engineering 2021 (July 7, 2021): 1–14. http://dx.doi.org/10.1155/2021/5574238.
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The vertical expansion of existing landfills can hold significant amounts of domestic waste and solve practical difficulties such as local government site selection. This research topic has become increasingly popular in the field of environmental geotechnical engineering. This study examined vertical expansion stability of landfills considering high leachate water level. The results showed the following. (1) Four slope instability modes for landfill vertical expansion are categorized according to the following slip surface positions: shallow slippage of the existing landfill, shallow slippage of the expanding landfill, interface slip between the existing landfill and expanding landfill, and deep slippage passes through the foundation soil. (2) The factor of safety decreases as the height of leachate level increases. When the height of leachate level rises from 2 m to 20 m, the factor of safety of the landfill is reduced by 13.2–15.4%. (3) As the vertical expansion height increases, the factor of safety of the existing landfill decreases, and when the expansion height increases to 30 m, the stability factor of safety of the old waste landfill is reduced by 4.83%. A landfill in Xi’an is considered as an example for the analysis, which shows that a leachate drainage layer can discharge leachate from the landfill body efficiently, reduce the leachate level height of the landfill body, and improve the stability of vertical expansion of the landfill. This study and its findings can be used as a reference for similar expansion projects.
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Anwar, A. H. M. Faisal, and Larissa Chan Thien. "Investigating Leachate Transport at Landfill Site Using HYDRUS-1D." International Journal of Environmental Science and Development 6, no. 10 (2015): 741–45. http://dx.doi.org/10.7763/ijesd.2015.v6.691.
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Lakshmikanthan, P., and GL Sivakumar Babu. "Performance evaluation of the bioreactor landfill in treatment and stabilisation of mechanically biologically treated municipal solid waste." Waste Management & Research: The Journal for a Sustainable Circular Economy 35, no. 3 (December 15, 2016): 285–93. http://dx.doi.org/10.1177/0734242x16681461.
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The potential of bioreactor landfills to treat mechanically biologically treated municipal solid waste is analysed in this study. Developing countries like India and China have begun to investigate bioreactor landfills for municipal solid waste management. This article describes the impacts of leachate recirculation on waste stabilisation, landfill gas generation, leachate characteristics and long-term waste settlement. A small-scale and large-scale anaerobic cell were filled with mechanically biologically treated municipal solid waste collected from a landfill site at the outskirts of Bangalore, India. Leachate collected from the same landfill site was recirculated at the rate of 2–5 times a month on a regular basis for 370 days. The total quantity of gas generated was around 416 L in the large-scale reactor and 21 L in the small-scale reactor, respectively. Differential settlements ranging from 20%–26% were observed at two different locations in the large reactor, whereas 30% of settlement was observed in the small reactor. The biological oxygen demand/chemical oxygen demand (COD) ratio indicated that the waste in the large reactor was stabilised at the end of 1 year. The performance of the bioreactor with respect to the reactor size, temperature, landfill gas and leachate quality was analysed and it was found that the bioreactor landfill is efficient in the treatment and stabilising of mechanically biologically treated municipal solid waste.
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Ding, Zhikun, Menglian Zhu, Zezhou Wu, Yanbin Fu, and Xia Liu. "Combining AHP-Entropy Approach with GIS for Construction Waste Landfill Selection—A Case Study of Shenzhen." International Journal of Environmental Research and Public Health 15, no. 10 (October 15, 2018): 2254. http://dx.doi.org/10.3390/ijerph15102254.
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With the recent fast economy development and rapid urbanization, the huge generation of construction waste has become a threat to sustainable development in China. Though efforts have been made to promote reuse and recycling of construction waste, landfilling of waste remains the most commonly adapted approach for construction waste disposal. As the space for landfills is limited and because of the negative issues in terms of environmental and social aspects that may be caused, the appropriate site selection of landfills is crucial. With this background, this paper aims to establish a framework for facilitating landfill selection for construction waste. To begin with, a total of sixteen factors that may influence landfill site selection were identified from a literature review. Then, based on the combined analytic hierarchy process (AHP) and entropy method, the weights and the final comprehensive scores of the identified factors were calculated. According to the derived results, potential sites for landfills were divided into three levels, namely the most appropriate (0.38%), appropriate (17.58%), and inappropriate (82.04%). The proposed decision-making methods in this paper can provide a valuable reference for the selection of construction waste landfill sites.
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Vaverkova, Magdalena Daria, and Dana Adamcova. "CASE STUDY OF LANDFILL RECLAMATION AT CZECH LANDFILL SITE." Environmental Engineering and Management Journal 17, no. 3 (2018): 641–48. http://dx.doi.org/10.30638/eemj.2018.065.
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Van Impe, William F., and Abdelmalek Bouazza. "Densification of domestic waste fills by dynamic compaction." Canadian Geotechnical Journal 33, no. 6 (December 1, 1996): 879–87. http://dx.doi.org/10.1139/t96-118.
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Dynamic compaction of solid waste is important in landfill operations because increasing the density of the material increases the storage capacity of the landfill. Differential settlements are also reduced, which is important for the integrity of the cover system. In this paper, a case study concerning a waste disposal site situated at Maldegem, Belgium, is presented. It is shown that young landfills behave differently from old landfills. This phenomenon results from the biodegradation of the wastes. Moreover, it is shown that the depth of influence, the crater depth, the enforced settlement, and the peak particle velocity are affected by this ageing process. Key words: dynamic compaction, landfills, SASW method, waste.
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Makuleke, Peace, and Veronica M. Ngole-Jeme. "Soil Heavy Metal Distribution with Depth around a Closed Landfill and Their Uptake by Datura stramonium." Applied and Environmental Soil Science 2020 (September 15, 2020): 1–14. http://dx.doi.org/10.1155/2020/8872475.
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Landfills are major sources of environmental pollution. This study evaluated heavy metal concentrations in soils and plants around the closed Lumberstewart landfill in Bulawayo, Zimbabwe, to determine the pollution potential of a closed landfill and the risks they present to plants growing in this environment and surrounding communities. Soil samples were collected at depths of 0–30 cm, 30–60 cm, and 60–90 cm around the landfill and at a control site and characterized for various properties and concentrations of Cd, Cu, Cr, Fe, Ni, and Zn. Samples of Datura stramonium, collected from the same sites where soil samples were collected, were also analyzed for the same heavy metals. The soils were sandy, mostly acidic (5.01 < pH < 7.65) with low organic matter content (<2%) and cation exchange capacity (<15 meq/100 g). These properties varied with depth around the landfill. Heavy metals concentrations in the soils and Datura stramonium followed the order Fe > Zn > Cu > Cr > Ni > Cd with samples from around the landfill having higher concentrations than samples from the control site. Soil heavy metal enrichment was highest at a depth of 30–60 cm. Pollution load index (PLI) values indicated that all sites around the landfill were polluted (PLI > 1). Heavy metal transfer coefficient in Datura stramonium ranged between 0.0 and 209 with <60% of the variation observed in heavy metal transfer coefficient in Datura stramonium explained by the extent of heavy metal enrichment in the soils. More than 20 years after closure of the landfill, there are indications that leachate migration may still be going on around the landfill. Monitoring of environments around closed landfills needs to be ongoing to mitigate negative impacts on humans and the environment.
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Масликов, V. Maslikov, Чусов, A. Chusov, Молодцов, and D. Molodtsov. "Researches of Biogas Composition on Landfill." Safety in Technosphere 2, no. 6 (December 25, 2013): 24–28. http://dx.doi.org/10.12737/2158.
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A practical experience related to execution of work on landfills in order to obtain information on spatial distribution of
biogas’s main components in different areas of waste disposal for landfill site zoning depending on biogas saturation
degree, for energy potential assessment and creation of degassing systems for justification of remediation has been
considered in this paper.
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Onay, T. T., and F. G. Pohland. "Nitrogen and sulfate attenuation in simulated landfill bioreactors." Water Science and Technology 44, no. 2-3 (July 1, 2001): 367–72. http://dx.doi.org/10.2166/wst.2001.0791.
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The characteristics of leachate from landfills vary according to site-specific conditions. Leachates from old landfills are often rich in ammonia nitrogen, posing potential adverse environmental impacts in the case of uncontrolled discharge. At landfills where leachate recirculation is practiced, leachate ammonia concentrations may accumulate to higher levels than during the single pass leaching. Using leachate recirculation with system modifications, separate aerobic and anoxic zones for nitrification and both autotrophic and heterotrophic denitrification can be provided. Results from simulated landfill bioreactors indicated that both nitrogenous and sulfur compounds can be attenuated through autotrophic denitrification, and leachate nitrate concentrations of 750 mg/L reduced to less than 1 mg/L by denitrification to nitrogen gas promoting this very common process in a landfill environment results in the reduction of both leachate ammonia and sulfate concentrations.
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Cobos Mora, Sandra Lucía, and José Luis Solano Peláez. "Sanitary landfill site selection using multi-criteria decision analysis and analytical hierarchy process: A case study in Azuay province, Ecuador." Waste Management & Research: The Journal for a Sustainable Circular Economy 38, no. 10 (June 29, 2020): 1129–41. http://dx.doi.org/10.1177/0734242x20932213.
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Despite environmental regulations in Ecuador, particularly in the Province of Azuay, the solid waste final disposal management is still a socio-environmental problem, worsened by weak governance processes. The province has three sanitary landfills with almost expired service lives. The site selection was based on circumstantial reasons, which makes landfills more likely to cause environmental pollution and, therefore, have negative implications for public health. The largest landfill serves Cuenca and also leases service to other small cities. The remaining two are small and, accordingly, have limited technology and fewer resources. In this context, the main aim of this study is to evaluate the terrain of the province to find the most suitable area for landfill siting. A multi-criteria decision analysis, integrated with a geographical information system and analytical hierarchy process methodology, was conducted. Fourteen factors and seven constraints were simultaneously analysed, divided into technical, environmental, social, and economic categories; 15 of these criteria were from the Ecuadorian Unified Text of the Secondary Legislation of the Environmental Ministry. According to the results, 76.17% of the territory is not suitable for landfill implementation, and the unrestricted area represents the remaining 23.83%. The highest landfill suitability index (70–81%) is located in the south of the province in Santa Isabel, Oña, and Nabón cantons, which are dry and clay-rich areas.
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Bertani Dall'Agnol, Ana Luiza, Mateus Torres Nazari, Carolina Faccio Demarco, Thays França Afonso, Cassia Brocca Caballero, Louise Hoss, Diuliana Leandro, Robson Andreazza, and Maurizio Silveira Quadro. "Selection of suitable areas for landfill installation in a Brazilian municipality through free software spatial analysis." Ciência e Natura 41 (November 14, 2019): e51. http://dx.doi.org/10.5902/2179460x39495.
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Municipal solid waste (MSW) increasing generation is related to population growth and higher consumption patterns. MSW management is still considered an issue for Brazilian municipalities due to its high complexity, specificity and amount. Landfills are considered a suitable method for final disposal of solid waste, being the technique used in Brazil. Among numerous applications, Geographic Information Systems (GIS) have been widely applied to select sites for landfills implementation. To meet regulatory requirements, choosing a landfill site requires several studies that consume time and resources. The aim of this work was to identify, through the use of GIS, areas that met regulatory and normative standards to landfill installation in a medium sized Brazilian city. It was possible to select three appropriate areas for the location of a landfill in the studied municipality. Considering the need for municipalities to comply with legislation, which demands the elimination of waste disposal in dumps and controlled landfills, properly designed and localized landfills are essential to the Brazilian reality in terms of MSW integrated management. The GIS is evidenced as an effective tool, since it reduces the number of field surveys, optimizing time and reducing economic and human resources needs for the landfill project preparation phase
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Njoku, Prince O., Joshua N. Edokpayi, and John O. Odiyo. "Health and Environmental Risks of Residents Living Close to a Landfill: A Case Study of Thohoyandou Landfill, Limpopo Province, South Africa." International Journal of Environmental Research and Public Health 16, no. 12 (June 15, 2019): 2125. http://dx.doi.org/10.3390/ijerph16122125.
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The by-products of solid waste deposited in a landfill has adverse effects on the surrounding environment and humans living closer to landfill sites. This study sought to test the hypothesis that the deposition of waste on landfill has an impact on the surrounding environment and residents living closer to it. This was achieved by evaluating the perception of the respondents drawn from people living close (100–500 m) and far (1–2 km) from the landfill site, concerning environmental issues, health problems, and life satisfaction. Results from the study showed that 78% of participants living closer to the landfill site indicated serious contamination of air quality evident from bad odours linked to the landfill site. Illnesses such as flu, eye irritation and weakness of the body were frequently reported by participants living closer to the landfill than those living far from the landfill. More than half of the participants (56%) living closer to the landfill indicated fear of their health in the future. Thus, the participants living closer to the landfill site were less satisfied with the location of their community with respect to the landfill, than those living far from the landfill site. Therefore, the need for a landfill gas (LFG) utilisation system, proper daily covering of waste and odour diluting agents are necessary to reduce the problems of the residents living closer to the landfill site.
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Podlasek, Anna, Aleksandra Jakimiuk, Magdalena Daria Vaverková, and Eugeniusz Koda. "Monitoring and Assessment of Groundwater Quality at Landfill Sites: Selected Case Studies of Poland and the Czech Republic." Sustainability 13, no. 14 (July 12, 2021): 7769. http://dx.doi.org/10.3390/su13147769.
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In order to protect the components of natural environment, each landfill must be properly secured and the monitoring program should be adopted. This study aims to present a comparative analysis of groundwater quality at selected landfill sites in Poland and the Czech Republic, with a special attention given to the levels and temporal changes of heavy metals (HMs) concentrations measured in collected groundwater samples. A secondary objective was to detect possible leakages of pollutants from the landfill body, into the groundwater, and further into the environment. The assessment of groundwater quality was based on a comparison of HMs concentrations with standards provided by the European environmental laws. On the basis of the long-term monitoring period, it was revealed, for the Polish landfill site, that the groundwater quality is improving over time, especially due to remedial works applied. For the Czech landfill, it was observed that the quality of groundwater is not negatively affected by the operation of the landfill, but in the immediate vicinity of the landfill, the groundwater quality is significantly affected by the agricultural use of neighbouring lands, as well as by the storage of construction and demolition wastes. The results showed that the leachate did not leak outside the landfills, especially due to minimal concentrations of HMs, measured in groundwater samples, taken from the piezometers located in the outflow direction from the landfills.
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Jucá, José Fernando, Alison Norberto, José Ivan Santos Júnior, and Fernando Marinho. "Brasília municipal solid waste landfill: a case study on flow and slope stability." Soils and Rocks 44, no. 3 (September 17, 2021): 1–13. http://dx.doi.org/10.28927/sr.2021.067321.
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For geotechnical and environmental reasons, landfills are positioned above the regional water table and thus are formed in unsaturated conditions. This condition can be different if the drainage system and the rain regime of the site are such that they create a level of internal liquid in the landfill. During January and February 2019, excessive movements occurred in the slopes of the Brasília sanitary landfill. A geotechnical investigation indicated that the raised leachate level caused by the clogging of the drainage system contributed to the landfilled waste movements. The limit equilibrium analysis was used to predict the relationship between leachate level and slope stability. In order to understand the process that led to the rupture, flow and stability analysis by limit equilibrium were performed. The parameters associated with flow, water retention capacity, and shear strength were obtained based on literature evaluations. In addition, data from tests were used, which allowed to define more accurately the distribution of pore pressures of liquid that led to the failure. This study allowed to define the cause of failure and also to establish the role of the drainage system in maintaining the stability of the landfill. The studies indicated that although the gain of shear strength of landfill due to the unsaturated condition is negligible, the process of flow in unsaturated medium, associated with climatic aspects, are fundamental for a medium- and long-term analysis.
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Jin, Park Chan. "Characteristics of Gas Emissions in Landfill Site in Recent Years." International Journal of Environmental Science and Development 6, no. 5 (2015): 387–90. http://dx.doi.org/10.7763/ijesd.2015.v6.623.
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Jain, Pradeep, Timothy G. Townsend, and Patrick Johnson. "Case study of landfill reclamation at a Florida landfill site." Waste Management 33, no. 1 (January 2013): 109–16. http://dx.doi.org/10.1016/j.wasman.2012.09.011.
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Yal, Gözde Pınar, and Haluk Akgün. "Landfill site selection and landfill liner design for Ankara, Turkey." Environmental Earth Sciences 70, no. 6 (April 18, 2013): 2729–52. http://dx.doi.org/10.1007/s12665-013-2334-y.
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Zhao, Ying, Qiang Xue, Lei Liu, and Bing Liang. "Pollutant Transport Model and Numerical Simulation in Landfill Site." Advanced Materials Research 443-444 (January 2012): 424–29. http://dx.doi.org/10.4028/www.scientific.net/amr.443-444.424.
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The simulation model for describing the transportation and transformation of landfill leachate pollutant in landfill, soil and underground water was established. Taking Wuhan Changshankou landfill for example, the numerical simulation was carried out. The simulation results showed that if there’s no any seepage control measure, the groundwater and soil under landfill will be polluted seriously after MSW was filled; the highest pollutant concetration in landfill was about 25000, and the one in groundwater and soil was about 20000; at the thirtieth year, the pollutant concetration in groundwater and soil still remained up to 10000 although the one in landfill was about 0. The simulation results also showed that the vertical stonewall can’t be used as a nature, and artificial seepage control system must be used.
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Multaniya, Amit P., Sanju Verma, and M. K. Beg. "ASSESSMENT OF SUITABLE LANDFILL SITE USING GEOSPATIAL TECHNIQUES: A CASE STUDY OF RAIPUR URBAN REGION, CHHATTISGARH, INDIA." International Journal of Research -GRANTHAALAYAH 9, no. 3 (March 30, 2021): 132–48. http://dx.doi.org/10.29121/granthaalayah.v9.i3.2021.3778.
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Currently, the solid waste management work of Raipur is being done in a completely traditional way, which is very expensive and time consuming. The site selection method using Geospatial techniques can function as a decision support tool for enhanced efficient and effective management of municipal solid waste. This Study’s aim was to develop landfill siting by crossing major barriers such as political, economic and environmental pressures for the execution of a suitable site criteria by employing combination of geospatial technique and Weighted Linear Combination (WLC) of Multi-Criteria Decision Analysis (MCDA) in Raipur urban area. The preliminary step of the methodology was geospatial operation and Study that disqualified all areas unsuitable for landfill siting. The insularity of suitable criteria for landfill site was generated based on published information on solid waste management, existing laws and regulatory necessities, as well as the existing local conditions. The different suitability criteria considered are soil, land use land cover, digital elevation model (DEM), surface waters, transport network, lithology and geological structures. Criteria were mapped using the geospatial technique; each criterion was identified and weighted by score for overlay to create suitability maps using GIS. The final results showed that there are more locations for landfills for Raipur urban area. In the present Study there are sporadic areas identified as suitable sites for landfill location. In the site suitability analysis 74.79% area found not suitable for landfill siting, 20.93% least suitable and 3.25% moderate suitable. Out of the remaining area, 1.03% area is found most suitable.
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Tim, Robinson. "Treatment of Landfill Leachate at a Remote Closed Landfill Site on the Isle of Wight." Detritus, no. 10 (June 30, 2020): 182–99. http://dx.doi.org/10.31025/2611-4135/2020.13947.
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Safe treatment and disposal of leachates is an important issue at many old landfill sites, where the ingress of rainfall or groundwater is a significant issue requiring consideration. Such leachates may typically be relatively weak, but flows are often characterised by large seasonal variations, in response to winter rainfall. This paper compiles and presents long-term data from a case study on the Isle of Wight, UK. This paper highlights how a successful treatability trial using representative leachates can help predict the effectiveness of a large-scale treatment plant when treating landfill leachates biologically. Bleakdown leachate treatment plant effectively removes all concentrations of ammoniacal-N within the weak leachate generated by the site, ensuring that the discharge consent set by the Environment Agency is achieved consistently. The site is completely unmanned and remote, where monitoring technicians are only required to attend site twice per month in order to assess the success of the biological process. Through an online SCADA control system, operation of the treatment plant can be monitored and controlled remotely, trends in results can be observed, and daily data and treatment records downloaded. This treatment plant is an example of how leachate from old closed landfills can be effectively managed, with very low costs of operation, maintenance and site attendance. This paper presents comprehensive analytical and volumetric treatment data from the Bleakdown LTP, before presenting practical steps that would enable this success to be replicated at similar remote closed landfill sites.
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He, Haijie, Tao Wu, Hui Xu, Yuhua Lu, Zhanhong Qiu, Xiaogang Wang, and Pan Zhang. "Investigation on the Emission and Diffusion of Hydrogen Sulfide during Landfill Operations: A Case Study in Shenzhen." Sustainability 13, no. 5 (March 7, 2021): 2886. http://dx.doi.org/10.3390/su13052886.
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This study investigated the emission and diffusion of hydrogen sulfide (H2S), as one of the odorous gases generated from landfills, in a municipal solid waste landfill of a south Chinese city. To this end, the flux of the H2S emissions in the working area of the landfill and its diffusion in the surrounding area were measured. The diffusion of the H2S was simulated at different wind speeds, wind directions, bare working areas of the landfill, heights of the landfill, and angles between the wind direction and the long side of the working area. The results indicated that the concentration of the H2S around the monitoring point ranged from 0 to 60 µg/m3, and the simulated data were consistent with the measured results. At a uniform wind direction, the pollution range of the H2S was narrow. Furthermore, with an increase in the height of the waste dump, the concentration of the H2S decreased in the working area but rose in the surrounding area. Notably, when the angle between the long side of the working area and the wind direction was 0°, the H2S largely spread along the extension cord of the long side of the working area. When the angle increased to 90°, the influence range of the H2S extended significantly. The working area in the landfill site should be regulated based on the monitored data to reduce the effect of this harmful gas on the living environment, and the health of the landfill staff and nearby residents.
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Hasanah, Uswatun, and AMY SEPTIAMUNA PAMUJI RAHAYU. "RESIKO GANGGUAN KESEHATAN PADA MASYARAKAT SEKITAR TEMPAT PEMBUANGAN AKHIR (TPA) TALANGAGUNG KABUPATEN MALANG." J-PIPS (Jurnal Pendidikan Ilmu Pengetahuan Sosial) 6, no. 2 (June 25, 2020): 82. http://dx.doi.org/10.18860/jpips.v6i2.7004.
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<p>The final disposal site (TPA) is a place that is needed by an area, including TPA Talangagung in Malang district. the presence of a landfill in an area will bring many problems to the people who live around the landfill. One of the problems is the risk of health problems for the community around the landfill site. This study aims to determine whether there are significant risks to public health with the Talangagung Landfill. This type of research is a type of quantitative descriptive study. The population in this study is the people who live and work in TPA Talangagung Malang Regency. The instrument used in this study used a questionnaire distributed to the community around the landfill site. From this data, we analyze using quantitative descriptive analysis by collecting data obtained from the community, then describing the results of the data collected as-is using a percentage formula. From the results of our analysis of the questionnaire data, there is no significant effect between public health and the Talangagung Landfill. However, it does not rule out the possibility of diseases suffered by the community around the TPA. The majority of people experience health problems such as coughs, colds, and itching. These health problems cannot be ascertained due to the influence of the Talangagung Landfill. TPA Talangagung Malang Regency in its implementation is by procedures set by the government following the Act. So that the impact caused by Talanggung TPA has no odor and does not cause environmental damage. Suggestions that can be submitted to the Department of Health and related Institutions are to monitor developments in the landfill so that the landfill waste does not damage the environment, especially not to disturb the health of the surrounding community.</p><p><strong><em>Keywords: Health Disorders, Landfills</em></strong></p>
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Xiang, Xin Yi, Lei Chen, Stephen Kueppers, Mei Hua Zhang, Hong Tang, Zong Yi Li, and Yuan Qing Li. "Turn Brownfield into Green Space-Eco-Regeneration of Closed Landfill." Advanced Materials Research 414 (December 2011): 63–67. http://dx.doi.org/10.4028/www.scientific.net/amr.414.63.
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With the accumulation of solid waste in developing countries, sites of closed landfills have attracted attentions, which can be sorted as one typical brown field in urban area. Taking closed municipal solid waste landfills as examples, case study for turning brown land into green space in Europe and USA was carried out, based on which, suggestions on the ecological regeneration of brown land in China were put forward. It was put forward that for closed landfill constructed in the earlier days, the reliable procedure for the site generation should be reclamation. If it is not possible to carry out the reclamation engineer at present, establishment of trees on the top soil of closed landfill, in other words, eco-regeneration can reduce the negative effects of landfill as far as possible. For the developing countries, reduction, stabilization and recycling of solid waste should be the final solution for solid waste.
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Frączek, Krzysztof, Henryk Różycki, and Dariusz Ropek. "Statistical Analyses of Bioaerosol Concentration at Municipal Landfill Site." Ecological Chemistry and Engineering S 21, no. 2 (July 8, 2014): 229–43. http://dx.doi.org/10.2478/eces-2014-0018.
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Abstract Air microbial quality of the municipal landfill site and in its surroundings was evaluated. Adverse impact of the municipal landfill site in Tarnow on the atmospheric environment was noted, despite the use of correct waste disposal technology. The sampling site and season of the year significantly affected the numbers of various groups of air microorganisms at the municipal landfill site and in its vicinity. For most cases, the effects of the sampling site on the microbial numbers were stronger than that of the season of the year. In this study, higher microbial numbers were observed at the sampling sites located in the area of the active landfill site compared to those located in its vicinity. The obtained results indicate, that despite the lack of current limits for bioaerosol levels the landfill site, even after its closing and reclamation, may still not be a suitable place for any public usage. Therefore, any regular microbiological studies of air should be carried out for a long time both at the area of landfill site and in its vicinity. These results could allow to define the time, when the landfill site become stable, regarding the numbers of microorganisms released to air.
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Yun, Jeonghee, Hyekyeng Jung, Hyungjoo Choi, Kyung-Cheol Oh, Jun-Min Jeon, Hee Wook Ryu, and Kyung-Suk Cho. "Performance evaluation of an on-site biocomplex textile as an alternative daily cover in a sanitary landfill, South Korea." Waste Management & Research: The Journal for a Sustainable Circular Economy 36, no. 12 (October 31, 2018): 1137–45. http://dx.doi.org/10.1177/0734242x18806996.
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The performance of a biocomplex textile prototype was evaluated as an alternative daily cover at an operational landfill site to mitigate odors and methane. The biocomplex textile prototype consisted of two layers of nonwoven fabric and biocarrier immobilized microorganisms and showed excellent removal of odors and methane compared to landfill cover soil. The complex odor intensity (odor dilution ratio (ODR)) on the surface of landfill cover soil was 1,000–10,000 ODR (average of 4,204 ODR), whereas it was 5–250 ODR (average of 55 ODR) on the surface of biocomplex textile. Hydrogen sulfide, which contributes a significant odor intensity, had an average concentration on the biocomplex textile of 8.64 parts-per-billion (ppb), compared to 1733.21 ppb on the landfill cover soil. The biocomplex textile also showed effective methane removal with methane concentrations of 0–1.2% (average of 0.3%) on the biocomplex textile compared to 0–20% (average of 5.3%) on the landfill cover soil. Bacterial community diversity in the biocomplex textile increased with time until an operating period of 66 days, after which diversity indices were maintained at a constant level. The dominant species were the methanotrophs Methylocaldum and Methylobacter, and the non-methanotrophs Acinetobacter, Serpens, Ohtaekwangia, and Actinophytocola. These results demonstrate that on-site biocomplex textile is a suitable alternative daily cover to mitigate odors and methane in landfills.
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Rapti, Dimitra, Salvatore Masi, and Francesco Sdao. "SIVRAD: an integrated system for the assessment of the environmental risk from solid waste landfills - Guidelines." Acque Sotterranee - Italian Journal of Groundwater 10, no. 2 (June 30, 2021): 49–62. http://dx.doi.org/10.7343/as-2021-507.
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In recent years, the contamination of the underground resources from landfill leachates is recognised as a serious socio-economic and environmental problem in many countries. In fact, the existing not adequately controlled and abandoned sites, constitute a serious sanitary and environmental problems. The choice of the waste disposal site must necessarily arise from a rigorous study based on the joint assessment of the environmental hazard of the same plant and the hydrogeological characteristics and the degree of intrinsic vulnerability to pollution of the aquifers. In the present paper an integrated system for the assessment of the environmental risk from solid waste landfills is proposed. The integrated analysis of the intrinsic vulnerability of the aquifer system and the estimate of the intrinsic potential hazard caused by the landfill expressed in terms of danger index allow to evaluate the suitability of the sites to host a landfill and to define the reclamation priority and monitoring system for the existing landfills. As concerns new landfills, the proposed methodology could also support a better construction strategy and the protection of the surrounding environment. Finally, this methodological approach was applied in landfills located in different geological and hydrogeological contexts.
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Ariyani, Safira Firda, Hijrah Purnama Putra, Kasam, Enri Damanhuri, and Emenda Sembiring. "Evaluation of Waste Management in Piyungan Landfill, Bantul Regency, Yogyakarta, Indonesia." MATEC Web of Conferences 280 (2019): 05018. http://dx.doi.org/10.1051/matecconf/201928005018.
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The municipal solid waste management system collects waste from the source to the final treatment site called landfill. The Yogyakarta Special Province has several landfills, one of which is Piyungan landfill, which serves three administrative areas, Yogyakarta City, Sleman and Bantul Regency. As a regional landfill, Piyungan has an area of 12.5 ha with 3 working zones, operationalized since 1995, estimated with the operational time 20 years. So that 2015 should landfill have been closed, but due to the degradation of waste until 2018 landfill is still used. Therefore, an evaluation mechanism is needed to show the existing condition in the field. Using the checklist method, using questionnaires and interviews and utilizing other secondary data. This method consists of five parts and has an assessment criteria in each component obtained assessment of facilities and infrastructure facilities of 2.25 (good category), while 1.68 for operational technical aspects (very good category). Overall Piyungan landfill evaluation scored 1.96 (good category). However, efforts are needed to ensure that the various facilities can be used properly so that the implementation and sustainability can work well.
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Du Preez, Mario, and T. Lottering. "Determining the negative effect on house values of proximity to a landfill site by means of an application of the hedonic pricing method." South African Journal of Economic and Management Sciences 12, no. 2 (August 22, 2011): 256–62. http://dx.doi.org/10.4102/sajems.v12i2.280.
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This study applied the hedonic pricing method to determine whether a disused, solid waste landfill site has an adverse effect on the prices of low-cost houses in New Brighton, a neighbourhood of the Nelson Mandela Metropole, Eastern Cape, South Africa. The results of the study show that the landfill site has a negative effect on New Brighton house prices. The average increase in house value is R36.00 per one hundred metres from the landfill site. This increase amounts to 0.44 percent of the value of a house per 100 metres from the landfill. When the change in value is summed for all the properties in the sample area (allowing for variation in value change due to differing distances from the landfill site) the total disamenity effect of the landfill site is approximately R1.4 million.
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Chapman, N. A., and G. M. Williams. "Hazardous and radioactive waste management: a case of dual standards?" Geological Society, London, Engineering Geology Special Publications 4, no. 1 (1987): 489–94. http://dx.doi.org/10.1144/gsl.eng.1987.004.01.59.
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AbstractThe recent activity by the UK Nuclear industry to investigate the safety of sites in shallow ground for the disposal of low level radioactive wastes has not surprisingly prompted comparison with landfill facilities in which toxic wastes are being deposited. The conclusion is that the level of site investigation, operation and long term performance assessment proposed for the radwaste sites is many orders of magnitude greater than that required by the regulatory authorities for landfills where the operators responsibility for the safety of the site virtually disappears once the last load of waste is tipped and the disposal licence lapses. Furthermore, the research budget for radwaste exceeds that for landfill disposal by a similar amount even though the risk from radwaste can be shown to be many times less than that from toxic wastes. Since the same government department is in charge of radwaste and landfill disposal, it seems that dual standards are operating, and that either the radwaste managers are being singled out for unfair scrutiny, or that insufficient attention is being directed at the real threat to the environment from 'antediluvian and ramshackle' landfill practices.
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Hidari, Kazuhiro, Masato Miyata, Sojiro Yamazaki, and Kazuo Kamura. "Visualization of Rare Metal-Enriched Zones in Waste Landfills Using Induced Polarization Method." Environments 7, no. 11 (October 27, 2020): 95. http://dx.doi.org/10.3390/environments7110095.
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We consider the studied landfill site an urban mine and developed a series of projects on metal endowment forms, nondestructive investigation methods for metal-enriched zones, metal extraction methods from enriched zones, and useful metal selection methods. This paper examines the exploration method. Induced polarization (IP) exploration was carried out at a T disposal site filled in the studied valley. In addition, three drillings were conducted in the studied exploration area. Using the core samples, IP parameters and metal contents were measured. Then, by comparing these data, we examined the effectiveness of the IP method for the visualization of metal-enriched zones in unsaturated landfills. The results of this experiment revealed that the iron-sulfide-enriched zone in the valley filling landfill can be identified by IP exploration. In addition, we clarified the types and contents of rare metals that coexist in iron sulfide. This process allows for further evaluation of landfills as a deposit.
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Manna, L., M. C. Zanetti, and G. Genon. "Modeling biogas production at landfill site." Resources, Conservation and Recycling 26, no. 1 (April 1999): 1–14. http://dx.doi.org/10.1016/s0921-3449(98)00049-4.
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