Relevant bibliographies by topics / Bioreactor landfills

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Academic literature on the topic 'Bioreactor landfills'

Author: Grafiati
Published: 4 June 2021
Last updated: 31 July 2024

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Journal articles on the topic "Bioreactor landfills"

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Oktiawan, Wiharyanto, Irawan Wisnu Wardhana, Endro Sutrisno, Domuanri Gorat, and Alfian Rizky Rizaldianto. "Municipal Solid Waste Management Using Bioreactor Landfill in the Treatment of Organic Waste from Jatibarang Landfill, Semarang-Indonesia." E3S Web of Conferences 125 (2019): 07002. http://dx.doi.org/10.1051/e3sconf/201912507002.

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Landfilling is one of the easiest methods to be applied in the management of municipal solid waste (MSW). In its development, bioreactor landfill methods that have various advantages over conventional landfill emerge. This experiment aims to study the use of bioreactor landfills for the management of organic waste in Jatibarang Landfill, Semarang-Indonesia. There are 4 bioreactor landfills operated: 2 anaerobic bioreactors with leachate recirculation and addition of water, and 2 aerobic bioreactors. Different results are shown from these two types of bioreactor, where aerobic bioreactors reach peak temperatures (55oC each) faster even though anaerobic bioreactors reach higher temperatures (60oC and 61oC respectively). Anaerobic bioreactors reach a higher final pH value than aerobes while the accumulation of nitrogen content from an aerobic bioreactor is 2 times higher than anaerobes.
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Wiharyanto, Oktiawan, Sutrisno Endro, and Hadiwidodo Mochtar. "Performance of Semi-Aerobic Solid Waste Bioreactor in relation to Decomposition Process and Biogas Production." E3S Web of Conferences 73 (2018): 07021. http://dx.doi.org/10.1051/e3sconf/20187307021.

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Solid waste which is sent to Jatibarang landfill in Semarang City can reach up to 4000 m3/day. The composition of solid waste consists of 61.95% of organic waste and 38.05% of inorganic waste. The environmental impacts of solid waste can be reduced using bioreactor methods which being able to accelerate the solid waste decomposition. Large amount of solid waste which is sent to Jatibarang landfill certainly has great potential to environment pollution. Therefore, a technology such as landfill bioreactor is needed to speed up the decomposition process of organic solid waste. Landfill bioreactors are characterized using a range of technologies in order to create an suitable environment for degradation processes. In this study four bioreactors simulated landfills that consist of hybrid bioreactors and anaerobic control bioreactors. The result shows that hybrid bioreactor has increases the decomposition process of organic solid waste. The hybrid bioreactor also produce more methane in subsequent anaerobes.
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Kim, J., and F. G. Pohland. "Process enhancement in anaerobic bioreactor landfills." Water Science and Technology 48, no. 4 (August 1, 2003): 29–36. http://dx.doi.org/10.2166/wst.2003.0214.

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The development of bioreactor landfills originated with the recognition that the sequential acid and methane fermentation phases of anaerobic waste stabilization could be accelerated by leachate recirculation. Original studies suggested the potential for such a change in design and management of landfills receiving both municipal and industrial solid wastes, followed by both pilot- and full-scale bioreactor landfill demonstrations. The enhancement of waste transformation within controlled bioreactor landfills is addressed in terms of the sequential phases of waste stabilization, temporal and spatial distribution of leachate and gas generation patterns, mechanisms of conversion, and proposed process and operational modifications. Selected results from investigations on bioreactor landfills include co-treatment of organic and inorganic constituents and the use of dedicated treatment zones.
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Yaman, Cevat, Suriya Rehman, Tanveer Ahmad, Yusuf Kucukaga, Burcu Pala, Noor AlRushaid, Syed Riyaz Ul Hassan, and Ayse Burcu Yaman. "Community Structure of Bacteria and Archaea Associated with Geotextile Filters in Anaerobic Bioreactor Landfills." Processes 9, no. 8 (August 6, 2021): 1377. http://dx.doi.org/10.3390/pr9081377.

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Landfills are an example of an environment that contains highly complex communities of microorganisms. To evaluate the microbial community structure, four stainless steel pilot-scale bioreactor landfills with single- and double-layered geotextile fabric were used. Two reactors (R-1 and R-2) contained municipal solid waste (MSW) and sewage sludge, while the other two reactors (R-3 and R-4) contained only MSW. A single layer of geotextile fabric (R2GT3 and R3GT3) was inserted in the drainage layers of the two reactors (R-2 and R-3), while a double layer of geotextile fabric (R4GT2 and R4GT1) was inserted in one of the reactors (R-4). Scanning electron microscopy demonstrated that biomass developed on the geotextile fabrics after 540 days of bioreactor operation. The metagenomics analyses of the geotextile samples by 16S rRNA gene sequencing indicated that the geotextile bacterial communities were dominated by the phyla Firmicutes, Bacteroidetes, and Thermotogeae, while Proteobacteria were detected as the rarest bacterial phylum in all the geotextile samples. Treponema, Caldicoprobacter, and Clostridium were the most dominant anaerobic and fermentative bacterial genera associated with the geotextile fabric in the bioreactors. Euryarchaeota was the predominant archaean phylum detected in all the geotextile samples. In the archaeal communities, Methanosarcina, and Vadin CA11 were identified as the predominant genera. The diversity of microorganisms in landfill bioreactors is addressed to reveal opportunities for landfill process modifications and associated operational optimization. Thus, this study provides insights into the population dynamics of microorganisms in geotextile fabrics used in bioreactor landfills.
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Meegoda, Jay N., Ameenah Soliman, Patrick A. Hettiaratchi, and Michael Agbakpe. "Resource Mining for a Bioreactor Landfill." Current Environmental Engineering 6, no. 1 (March 27, 2019): 17–34. http://dx.doi.org/10.2174/2212717805666181031122517.

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Background: A new generation of the sustainable landfill is designed to achieve sustainable Municipal Solid Waste (MSW) management. It is hybrid anaerobic/aerobic biodegradation landfill followed by landfill mining. However, there is limited information on landfill mining, especially the criteria and process for the practitioner to determine the end of the landfill biodegradation to commence landfill mining. Objective: Hence the overall objective of this research was to develop a comprehensive resource mining plan for bioreactor landfills. </P><P> Method: When waste decomposition becomes slower or stopped, the landfill can be mined to recover resources and utilize the recovered space. The amount of the gas generated, landfill temperature and landfill settlement are indirect measures of landfill activity. Also, the concentration of cellulose (C), hemicelluloses (H), and lignin (L) can describe the biodegradable fractions of waste. Hence the biodegradation in landfills can be monitored by recording the change in methane production, temperature, settlement and the (C+H)/L ratio of waste. Once methane recovery is minimal, landfill reaches a maximum settlement and, ambient temperature plus the (C+H)/L value reaches a stable value of 0.25 indicating end of biodegradation. At this point landfill resources including compost material, non-recoverable waste, and recyclables such as plastics, metal and glass can be mined and recovered. Compost and recyclables can be sold at market value and the non-recovered waste with high energy content can be used as refuse-derived fuel. Once the landfill has been mined space can be reused thus eliminating the need to allocate valuable land for new landfills. </P><P> Result: The landfill mining detailed in this manuscript utilizes principles from single stream type recycling facilities to ensure feasibility. The first landfill will be excavated and screened to separate the biodegraded soil and compost fraction from the recyclables. Then the screened recyclable materials are transported for further processing in a single stream type separation facility where they will be separated, bundled and sold. Conclusion: A cost calculation was performed for the resource mining of Calgary Biocell and if the mined resources are sold at market values, then the mining of Calgary Biocell would generate approximately $4M.
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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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Patil, Bhagwan Shamrao, Agnes Anto C, and Devendra Narain Singh. "Simulation of municipal solid waste degradation in aerobic and anaerobic bioreactor landfills." Waste Management & Research: The Journal for a Sustainable Circular Economy 35, no. 3 (December 8, 2016): 301–12. http://dx.doi.org/10.1177/0734242x16679258.

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Municipal solid waste generation is huge in growing cities of developing nations such as India, owing to the rapid industrial and population growth. In addition to various methods for treatment and disposal of municipal solid waste (landfills, composting, bio-methanation, incineration and pyrolysis), aerobic/anaerobic bioreactor landfills are gaining popularity for economical and effective disposal of municipal solid waste. However, efficiency of municipal solid waste bioreactor landfills primarily depends on the municipal solid waste decomposition rate, which can be accelerated through monitoring moisture content and temperature by using the frequency domain reflectometry probe and thermocouples, respectively. The present study demonstrates that these landfill physical properties of the heterogeneous municipal solid waste mass can be monitored using these instruments, which facilitates proper scheduling of the leachate recirculation for accelerating the decomposition rate of municipal solid waste.
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Warith, Mostafa A., and Graham J. Takata. "Effect of Aeration on Fresh and Aged Municipal Solid Waste in a Simulated Landfill Bioreactor." Water Quality Research Journal 39, no. 3 (August 1, 2004): 223–29. http://dx.doi.org/10.2166/wqrj.2004.031.

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Abstract Municipal solid waste (MSW) is slow to stabilize under conventional anaerobic landfill conditions, demanding long-term monitoring and pollution control. Provision of aerobic conditions offers several advantages including accelerated leachate stabilization, increased landfill airspace recovery and a reduction in greenhouse gas emissions. Air injection was applied over 130 days to bench-scale bioreactors containing fresh and aged MSW representative of newly constructed and pre-existing landfill conditions. In the fresh MSW simulation bioreactors, aeration reduced the average time to stabilization of leachate pH by 46 days, TSS by 42 days, TDS by 84 days, BOD5 by 46 days and COD by 32 days. In addition, final leachate concentrations were consistently lower in aerated test cells. There was no indication of a gradual decrease in the concentration of ammonia, and it is likely this high ammonia concentration would continue to be problematic in bioreactor landfill applications. This study focussed only on biodegradability of organics in the solid waste. The concentrations of the nonreactive or conservative substances such as chloride and/or heavy metals remain in the bioreactor landfills due to the continuous recirculation of leachate. The results of this study demonstrate the potential for air injection to accelerate stabilization of municipal solid waste, with greatest influence on fresh waste with a high biodegradable organic fraction.
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Jiang, Guobin, Dan Liu, Weiming Chen, Zhicheng Ye, Hong Liu, and Qibin Li. "Impact of vent pipe diameter on characteristics of waste degradation in semi-aerobic bioreactor landfill." Waste Management & Research: The Journal for a Sustainable Circular Economy 35, no. 10 (August 19, 2017): 1064–71. http://dx.doi.org/10.1177/0734242x17723979.

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The evolution mechanism of a vent pipe diameter on a waste-stabilization process in semi-aerobic bioreactor landfills was analyzed from the organic-matter concentration, biodegradability, spectral characteristics of dissolved organic matter, correlations and principal-component analysis. Waste samples were collected at different distances from the vent pipe and from different landfill layers in semi-aerobic bioreactor landfills with different vent pipe diameters. An increase in vent pipe diameter favored waste degradation. Waste degradation in landfills can be promoted slightly when the vent pipe diameter increases from 25 to 50 mm. It could be promoted significantly when the vent pipe diameter was increased to 75 mm. The vent pipe diameter is important in waste degradation in the middle layer of landfills. The dissolved organic matter in the waste is composed mainly of long-wave humus (humin), short-wave humus (fulvic acid) and tryptophan. The humification levels of the waste that was located at the center of vent pipes with 25-, 50- and 75-mm diameters were 2.2682, 4.0520 and 7.6419 Raman units, respectively. The appropriate vent pipe diameter for semi-aerobic bioreactor landfills with an 800-mm diameter was 75 mm. The effect of different vent pipe diameters on the degree of waste stabilization is reflected by two main components. Component 1 is related mainly to the content of fulvic acid, biologically degradable material and organic matter. Component 2 is related mainly to the content of tryptophan and humin from the higher vascular plants.
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Pohland, F. G., and B. Al-Yousfi. "Design and operation of landfills for optimum stabilization and biogas production." Water Science and Technology 30, no. 12 (December 1, 1994): 117–24. http://dx.doi.org/10.2166/wst.1994.0594.

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Most municipal landfills are constructed and operated with exposure to intermittent rainfall. Infiltration of rainfall, together with the inherent moisture content of landfilled wastes, promotes leachate production and accelerates rates of conversion of waste constituents. As these conversion processes proceed, waste stabilization occurs, leachate quality changes, and biogas is released in correspondence with the prevailing phase of stabilization. The intensities and temporal and spatial dimensions of these phases are waste-specific, a function of landfill design and operational strategy employed, and characterized by changes in physical, chemical and biological indicator parameters. Recognizing that most landfills exist as microbially mediated anaerobic waste conversion processes, with the sequential phases of acid formation and methane fermentation accounting for the majority of waste stabilization being accomplished, a fundamental understanding of these two principal phases of landfill stabilization is provided and used as a basis for developing guidance for controlled landfill design and operation. This guidance emphasizes optimization of stabilization efficiency, establishes cost-effective procedures for leachate management, and promotes regulated biogas production and utilization. To accommodate these objectives, the benefits of converting landfills into controlled bioreactor systems through regulated leachate generation, containment, collection, and in situ recirculation for accelerated waste stabilization and integrated biogas management are described, and opportunities for ultimate leachate disposal, biogas utilization and landfill reclamation are illustrated and compared to relative costs of other management options.
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Dissertations / Theses on the topic "Bioreactor landfills"

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DeAbreu, Ricardo. "Facultative Bioreactor Landfill: An Environmental and Geotechnical Study." ScholarWorks@UNO, 2003. http://scholarworks.uno.edu/td/39.

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A relatively new concept of Municipal Solid Waste treatment is known as bioreactor landfill technology. Bioreactor landfills are sanitary landfills that use microbiological processes purposefully to transform and stabilize the biodegradable organic waste constituents in a shorter period of time. One of the most popular types of bioreactor landfills is the landfill with leachate recirculation. However, it is observed that ammonia rapidly accumulates in landfills that recirculate leachate and may be the component that limits the potential to discharge excess leachate to the environment. In the facultative landfill, leachate is nitrified biologically using an on-site treatment plant and converted by denitrifying bacteria to nitrogen gas, a harmless end-product. In this research, three pilot-plant scale lysimeters are used in a comparative evaluation of the effect of recirculating treated and untreated leachate on waste stabilization rates. The three lysimeters are filled with waste prepared with identical composition. One is being operated as a facultative bioreactor landfill with external leachate pre-treatment prior to recirculation, the second is being operated as an anaerobic bioreactor landfill with straight raw leachate recirculation, and the third one is the control unit and operated as a conventional landfill. Apart from environmental restrictions, geotechnical constraints are also imposed on new sanitary landfills. The scarcity of new potential disposal areas imposes higher and higher landfills, in order to utilize the maximum capacity ofthose areas. In this context, the knowledge of the compressibility of waste landfills represents a powerful tool to search for alternatives for optimization of disposal areas and new solid waste disposal technologies. This dissertation deals with and discusses the environmental and geotechnical aspects of municipal solid waste landfills. In the Environmental Engineering area, it compares the quality of the leachate and gas generated in the three lysimeters and discusses the transfer of the technology studied through lysimeters to procedures for full-scale operation. In the geotechnical area, this dissertation discusses the compressibility properties of the waste and provides a state-of-the-art review of MSW compressibility studies. It also evaluates the compressibility of MSW landfills for immediate and long-term settlements and proposes a new model for compressibility of waste landfills.
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Price, G. Alexander. "LONG-TERM NITROGEN MANAGEMENT IN BIOREACTOR LANDFILLS." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20011214-153926.

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One scenario for the long-term nitrogen management in landfills is ex-situ nitrification followed by denitrification in the landfill. The objective of this research was to measure the denitrification potential of actively decomposing and well decomposed refuse. A series of 10-L reactors that was actively producing methane was fed 400 mg NO3-N /L every 48 hr for19 to 59 days. Up to 29 nitrate additions were either completely or largely depleted within 48 hr of addition and the denitrification reactions did not adversely affect the refuse pH. Nitrate did inhibit methane production but the reactors recovered their methane-producing activity with the termination of the nitrate addition. In well decomposed refuse, the nitrate consumption rate was reduced but was easily stimulated by the addition of either acetate or an overlayer of fresh refuse. Addition of a high acetate to nitrate ratio did not lead to the production of NH4+ by dissimilatory nitrate reduction. Although the population of denitrifying bacteria decreased by about five orders of magnitude during refuse decomposition in a reactor that did not receive nitrate, rapid denitrification commenced immediately with the addition of 400 mg NO3-N/L. These data suggest that the use of a landfill as a bioreactor for the conversion of nitrate to a harmless byproduct, nitrogen gas, is technically viable.

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Wolfe, Kevin Brian. "First principles and artificial neural networks modeling of waste temperatures in a forced-aeration landfill bioreactor : a dissertation presented to the faculty of the Graduate School, Tennessee Technological University /." Click access online version, 2006. http://proquest.umi.com/pqdweb?index=96&did=1115122181&SrchMode=1&sid=1&Fmt=6&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1256313131&clientId=28564.

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Murphy, Timothy J. "A comparative evaluation of liquid infiltration methods for bioreactor landfills." Connect to resource, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1086213619.

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Thesis (Ph. D.)--Ohio State University, 2004.
Title from first page of PDF file. Document formatted into pages; contains xvii, 342 p.; also includes graphics. Includes bibliographical references (p. 164-171). Available online via OhioLINK's ETD Center
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Berge, Nicole. "IN-SITU AMMONIA REMOVAL OF LEACHATE FROM BIOREACTOR LANDFILLS." Doctoral diss., University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3281.

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A new and promising trend in solid waste management is to operate the landfill as a bioreactor. Bioreactor landfills are controlled systems in which moisture addition and/or air injection are used as enhancements to create a solid waste environment capable of actively degrading the biodegradable organic fraction of the waste. Although there are many advantages associated with bioreactor landfills, some challenges remain. One such challenge is the ammonia-nitrogen concentration found in the leachate. The concentrations of ammonia-nitrogen tend to increase beyond concentrations found in leachate from conventional landfills because recirculating leachate increases the rate of ammonification and results in accumulation of higher levels of ammonia-nitrogen concentrations, even after the organic fraction of the waste is stabilized. Because ammonia-nitrogen persists even after the organic fraction of the waste is stabilized, and because of its toxic nature, it is likely that ammonia-nitrogen will determine when the landfill is biologically stable and when post-closure monitoring may end. Thus an understanding of the fate of nitrogen in bioreactor landfills is critical to a successful and economic operation. Ammonia-nitrogen is typically removed from leachate outside of the landfill. However, additional costs are associated with ex-situ treatment of ammonia, as separate treatment units on site must be maintained or the leachate must be pumped to a publicly owned wastewater treatment facility. Therefore, the development of an in-situ nitrogen removal technique would be an attractive alternative. Several recent in-situ treatment approaches have been explored, but lacked the information necessary for field-scale implementation. The objectives of this study were to develop information necessary to implement in-situ ammonia removal at the field-scale. Research was conducted to evaluate the kinetics of in-situ ammonia removal and to subsequently develop guidance for field-scale implementation. An aerobic reactor and microcosms containing digested municipal solid waste were operated and parameters were measured to determine nitrification kinetics under conditions likely found in bioreactor landfills. The environmental conditions evaluated include: ammonia concentration (500 and 1000mg N/L), temperature (25o, 35o and 45oC), and oxygen concentration in the gas-phase (5, 17 and 100%). Results suggest that in-situ nitrification is feasible and that the potential for simultaneous nitrification and denitrification in field-scale bioreactor landfills is significant due to the presence of both aerobic and anoxic areas. All rate data were fitted to the Monod equation, resulting in an equation that describes the impact of pH, oxygen concentration, ammonia concentration, and temperature on ammonia removal. In order to provide design information for a field-scale study, a simple mass balance model was constructed in FORTRAN to forecast the fate of ammonia injected into a nitrifying portion of a landfill. Based on model results, an economic analysis of the in-situ treatment method was conducted and compared to current ex-situ leachate treatment costs. In-situ nitrification is a cost effective method for removing ammonia-nitrogen when employed in older waste environments. Compared to reported on-site treatment costs, the costs associated with the in-situ ammonia removal process fall within and are on the lower end of the range found in the literature. When compared to treating the leachate off-site, the costs of the in-situ ammonia removal process are always significantly lower. Validation of the laboratory results with a field-scale study is needed.
Ph.D.
Department of Civil and Environmental Engineering
Engineering and Computer Science
Environmental Engineering
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Niemietz, Roberta. "Effects of Temperature on Anaerobic Lignin Degradation in Bioreactor Landfills." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/36051.

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Bioreactor landfills have become a feasible alternative to the typical â dry tombâ landfill. By recirculating leachate and/or adding additional liquid wastes, bioreactor landfills operate to rapidly degrade and transform organic wastes. The reactions within a bioreactor landfill create elevated temperatures. The intent of this study was to determine the effect of elevated temperature on the degradation of lignocellulose compounds. In order to observe the effects of temperature on lignin, small bioreactors were created in the laboratory. Several experiments were performed by the authors. Solubility of lignin based on temperature and time of thermal exposure were conducted. In addition, degradation studies were conducted based on biological treatment of lignin as well as a combination of biological and thermal treatment. Samples were collected at specified intervals to determine the amount of water soluble lignin (WSL), volatile fatty acids (VFAs), lignin monomers, and/or methane present. Lignin solubility increased as temperature rose in the thermal solubility experiments. The rate of solubility increased 15 times for office paper and 1.5 times for cardboard in the biological experiments when compared to the thermal treatment. The thermal and biological study indicates that as lignin is solubilized, it breaks down into lignin monomers, which can be converted easily by anaerobic bacteria into VFAs and subsequently, methane. These experiments indicate that temperature is crucial to the degradation of lignin compounds in a bioreactor landfill.
Master of Science
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Abdallah, Mohamed E. S. M. "A Novel Computational Approach for the Management of Bioreactor Landfills." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/20314.

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The bioreactor landfill is an emerging concept for solid waste management that has gained significant attention in the last decade. This technology employs specific operational practices to enhance the microbial decomposition processes in landfills. However, the unsupervised management and lack of operational guidelines for the bioreactor landfill, specifically leachate manipulation and recirculation processes, usually results in less than optimal system performance. Therefore, these limitations have led to the development of SMART (Sensor-based Monitoring and Remote-control Technology), an expert control system that utilizes real-time monitoring of key system parameters in the management of bioreactor landfills. SMART replaces conventional open-loop control with a feedback control system that aids the human operator in making decisions and managing complex control issues. The target from this control system is to provide optimum conditions for the biodegradation of the refuse, and also, to enhance the performance of the bioreactor in terms of biogas generation. SMART includes multiple cascading logic controllers and mathematical calculations through which the quantity and quality of the recirculated solution are determined. The expert system computes the required quantities of leachate, buffer, supplemental water, and nutritional amendments in order to provide the bioreactor landfill microbial consortia with their optimum growth requirements. Soft computational methods, particularly fuzzy logic, were incorporated in the logic controllers of SMART so as to accommodate the uncertainty, complexity, and nonlinearity of the bioreactor landfill processes. Fuzzy logic was used to solve complex operational issues in the control program of SMART including: (1) identify the current operational phase of the bioreactor landfill based on quantifiable parameters of the leachate generated and biogas produced, (2) evaluate the toxicological status of the leachate based on certain parameters that directly contribute to or indirectly indicates bacterial inhibition, and (3) predict biogas generation rates based on the operational phase, leachate recirculation, and sludge addition. The later fuzzy logic model was upgraded to a hybrid model that employed the learning algorithm of artificial neural networks to optimize the model parameters. SMART was applied to a pilot-scale bioreactor landfill prototype that incorporated the hardware components (sensors, communication devices, and control elements) and the software components (user interface and control program) of the system. During a one-year monitoring period, the feasibility and effectiveness of the SMART system were evaluated in terms of multiple leachate, biogas, and waste parameters. In addition, leachate heating was evaluated as a potential temperature control tool in bioreactor landfills. The pilot-scale implementation of SMART demonstrated the applicability of the system. SMART led to a significant improvement in the overall performance of the BL in terms of methane production and leachate stabilization. Temperature control via recirculation of heated leachate achieved high degradation rates of organic matter and improved the methanogenic activity.
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El, Khatib Dounia. "Municipal Solid Waste in Bioreactor Landfills: A Large Scale Study." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1289943004.

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DI, ADDARIO MARTINA. "Bioreactor landfills: experimental simulations, full scale monitoring and fuzzy modelling." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2692535.

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In the perspective of a sustainable waste management, the amount of biodegradable municipal solid waste (MSW) destined to landfilling should be reduced. In such context, new technologies were developed in recent years with the aim of a more rapid stabilization of the waste, such as pretreatments and bioreactor landfills (BRLs). In the Italian waste management scenario, although solution have been adopted towards waste recycling and recovery, landfilling is still playing an important role. The case study of Cerro Tanaro (CT) landfill depicts a typical situation of an average Italian district without incineration facilities. The MSW disposed in CT landfill is the residual fraction, pretreated through aerobic mechanical-biological treatment (MBT) in order to reduce the biodegradability prior to landfilling. This disposal site, originally built as a conventional landfill, was equipped with a leachate recirculation system. Although the benefit of moisture increase had been previously demonstrated, most of the studies in literature tested the effects on raw MSW, with relatively high organic contents, above 40%. Moreover, the use of existing models for the simulation of landfill behaviour are not suitable for unconventional landfill technologies, unless very high uncertainties are introduced. Based on the case study of CT landfill, the need of novel approaches for the study and the simulation of emerging landfilling solution had been identified. The main aim of this thesis was to offer a novel and simple tool for the prediction of landfill behaviour when unconventional management practises are introduced, regarding both the quality of the MSW landfilled and the operational conditions. Therefore, experimental tests were conducted at lab-scale, the full-scale case study of CT landfill was monitored and a fuzzy-logic (FL) based model was developed for the prediction of landfill gas production. The experimental tests at lab-scale demonstrated that coupling MBT with leachate recirculation could reactivate the biodegradation processes even for low biodegradable waste (LBW), thanks to moisture increase. Although it was difficult to establish a stable methanogenic phase, CH4 production reached 28 NL kg-1 after 442 days of experimentation, that is 85% of its bio-methane potential (BMP). Also leachate quality presented reduced pollution strength with low COD and NH4+ concentrations. The results highlighted the differences between the tested LBW and fresh not pretreated MSW and between the optimized lab-scale and the heterogeneities of the full-scale landfill. Two deterministic models were tested for the estimation of CH4 production from LBW under leachate recirculation: Gompertz kinetic model and BIO-5 model. The production curves obtained by the two models confirmed the limits of deterministic methods and underlined the need of different approaches, able to deal with the uncertainties typical of landfill gas modelling. A FL-based model to predict methane generation in BRLs was proposed. Eleven deterministic inputs (pH, ORP, COD, VFA, NH4+ content, age of the waste, temperature, moisture content, organic fraction, particle size and recirculation flow rate) were identified as antecedent variables. Two outputs, or consequents, were chosen: methane production rate and methane fraction. The fuzzy model was built and tested on the lab-scale experimentation of LBW under leachate recirculation. Additionally, the data of other six lab-scale studies from literature were used to widen the applicability of the proposed model. The proposed fuzzy model was then applied on the full-scale case study of CT landfill. Although this case study was characterized by lack of information from the previous literature, fuzzy modelling represented a valid tool which could be easily adapted to the specific system under study.Another aspect concerning modern landfills has been treated, that is the presence of emerging contaminants among MSW. A FL-based model was developed to evaluate biogas and methane production from BRLs in presence of ZnO nanoparticles (NPs). The fuzzy model was tested on the data of a lab-scale study simulating a bioreactor landfill with 100 mg of added nano-ZnO/kg of dry waste, conducted in the Institute of Environmental Sciences (Boğaziçi University – Istanbul). By comparing the results of the proposed FL-based models with the deterministic models, the FL approach showed better performances for both lab-scale and full- scale methane predictions, confirming its high potential in the modelling of landfill environments under different emerging scenarios. The proposed FL-based models represent a basis to describe methane production in such systems, which, thanks to its learning structure, can be easily upgraded with additional parameters and information coming from future findings in this topic.
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Boda, Borbala. "Evaluation of Stability Parameters for Landfills." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/34399.

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There are more than three thousand landfills in the United States, in which approximately 55% (1998, U. S. EPA 1999) of the MSW generated in the US is buried. The majority of the landfills are conventional, but in the last two decades new types of landfills, called leachate recycle and bioreactor landfills, have been designed and tested as an enhanced environment for biochemical degradation of municipal solid waste. All the landfills are regulated under Subtitle D of the Resource Conservation and Recovery Act (RCRA). The shortage of time and money has limited the amount of research done on waste stability analysis. The purpose of this study was to evaluate the importance of lignocelluloses in biodegradation and the secondary settlement based on dry density and typical landfill evaluating parameters. Both parts of the study samples were collected and analyzed from eleven landfills. In the first part of the study, bioreactor landfills were found more effective, faster in the degradation of VS and cellulose as compared to conventional landfills. The time required for stabilization is reduced to about 1/3 that of conventional landfills. The lignocelluloses degradation that occurs in these landfills is happening in two phases. In the initial, rapid degradation phase, the primary degradation substrate is cellulose. In the second phase, after cellulose degraded to 15-20% of the waste, degradation of the remaining cellulose along with lignin and the hemicelluloses takes place. The start of lignin and hemicellulose degradation results in an increase in the biochemical methane potential (BMP). In the second part of the study, the addition of moisture to the landfills presented a contentious issue. Moisture is encouraged for MSW refuse degradation, but for settlement it reduces compressibility. In leachate recycle landfills, the dry density is higher than in conventional landfills; therefore there is more available room for further MSW load. The increase can reach up to 40 percent in total volume.
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Books on the topic "Bioreactor landfills"

1

Reinhart, Debra R. Landfill bioreactor design and operation. Boca Raton, Fla: Lewis Publishers, 1998.

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Workshop, on Bioreactor Landfills (2000 Arlington Va ). State of the practice for bioreactor landfills: Workshop on Bioreactor Landfills, Arlington, Virginia, September 6-7, 2000. Cincinnati, Ohio: National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 2002.

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Authority, Delaware Solid Waste, and National Risk Management Research Laboratory (U.S.), eds. Landfill bioreactor design and operation: March 23-24, 1995, Wilmington, Delaware. Cincinnati, Ohio: National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 1996.

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State University College (Oswego, N.Y.). Environmental Research Center., Broome County (N.Y.). Division of Solid Waste Management., and New York State Energy Research and Development Authority., eds. Leachate recirculation at the Nanticoke sanitary landfill using a bioreactor trench: Final report. Albany, N.Y: The Authority, 1998.

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K, Ouki S., Sollars C. J, Imperial College of Science, Technology and Medicine. Centre for Environmental Control and Waste Management., and Warzyn Inc, eds. Landfill tomorrow - bioreactors or storage: Proceedings of a seminar held at the Centre for Environmental Control & Waste Management, Imperial College of Science, Technology & Medicine in association with Warzyn Inc. London: Imperial College Centre for Environmental Control & Waste Management, 1993.

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Enhanced Stabilisation Of Municipal Solid Waste In Bioreactor Landfills. CRC Press, 2008.

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Vazquez, Roberto Valencia. Enhanced Stabilisation of Municipal Solid Waste in Bioreactor Landfills: UNESCO-IHE PhD Thesis. Taylor & Francis Group, 2008.

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Vazquez, Roberto Valencia. Enhanced Stabilisation of Municipal Solid Waste in Bioreactor Landfills: UNESCO-Ihe PhD Thesis. Taylor & Francis Group, 2010.

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Vazquez, Roberto Valencia. Enhanced Stabilisation of Municipal Solid Waste in Bioreactor Landfills: UNESCO-IHE PhD Thesis. Taylor & Francis Group, 2017.

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Enhanced Stabilisation of Municipal Solid Waste in Bioreactor Landfills: UNESCO-IHE PhD Thesis. CRC Press LLC, 2012.

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Book chapters on the topic "Bioreactor landfills"

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Goel, Ankit, Subhadeep Metya, and Gautam Bhattacharya. "Probabilistic Slope Stability Analysis of Bioreactor Landfills." In Lecture Notes in Civil Engineering, 207–18. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-7245-4_19.

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Avinash, Lagudu S., and Anumita Mishra. "Bioreactor Landfills: Sustainable Solution to Waste Management." In Society of Earth Scientists Series, 199–217. Cham: Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-56176-4_15.

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Ilahi, Kamran, and Arvind Kumar Agnihotri. "Future of Sustainable Landfilling Through Bioreactor Landfills: A Review." In Lecture Notes in Civil Engineering, 361–75. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4731-5_35.

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Li, An-Zheng, Shi-Jin Feng, and Ben-Yi Cao. "Numerical Simulation of Bioreactor Landfills Subjected to Aeration Using CFD." In Proceedings of the 8th International Congress on Environmental Geotechnics Volume 2, 224–30. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2224-2_28.

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Hettiaratchi, J. Patrick A. "Landfill landfill/landfilling Bioreactors landfill/landfilling bioreactor." In Encyclopedia of Sustainability Science and Technology, 5720–32. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0851-3_114.

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Bai, Zhen-Bai, Shi-Jin Feng, and Shi-Feng Lu. "A Three-Dimensional Dual-Permeability Numerical Flow Model in Bioreactor Landfills." In Proceedings of GeoShanghai 2018 International Conference: Geoenvironment and Geohazard, 280–88. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0128-5_32.

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Gurjar, Dharmendra Kumar, and Arvind Kumar Jha. "Influence of Slope Geometry on Stability of Bioreactor Landfills—A Numerical Analysis." In Lecture Notes in Civil Engineering, 343–56. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-6774-0_33.

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Sughosh, P., M. R. Pandey, and G. L. Sivakumar Babu. "Permeability Index of Mechanically Biologically Treated Waste and Its Application in Bioreactor Landfills." In Lecture Notes in Civil Engineering, 61–68. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6237-2_6.

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Reddy, Krishna R., and Girish Kumar. "Coupled Hydro-Biomechanical Modeling of Bioreactor Landfills: New Modeling Framework and Research Challenges." In Developments in Geotechnical Engineering, 313–21. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4077-1_31.

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Srivastava, Abhishek N., Rahul Singh, Sumedha Chakma, and Volker Birke. "Advancements in Operations of Bioreactor Landfills for Enhanced Biodegradation of Municipal Solid Waste." In Circular Economy in Municipal Solid Waste Landfilling: Biomining & Leachate Treatment, 153–66. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-07785-2_7.

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Conference papers on the topic "Bioreactor landfills"

1

Abdallah, Mohamed, Emil Petriu, Kevin Kennedy, Roberto Narbaitz, and Mostafa Warith. "Intelligent control of bioreactor landfills." In 2011 IEEE International Conference on Computational Intelligence for Measurement Systems and Applications (CIMSA). IEEE, 2011. http://dx.doi.org/10.1109/cimsa.2011.6059928.

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Hunte, Carlos, Patrick Hettiaratchi, Jay N. Meegoda, and Chamil H. Hettiarachchi. "Settlement of Bioreactor Landfills During Filling Operation." In Geo-Denver 2007. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40907(226)6.

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Hettiarachchi, Hiroshan. "Settlement Behavior of Bioreactor Landfills in North America." In GeoCongress 2012. Reston, VA: American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412121.434.

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Hossain, MD Sahadat, Mohamed A. Gabr, and Mohamed A. Haque. "Deformation of MSW Bioreactor Landfills: Properties and Analysis Approach." In GeoCongress 2008. Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40970(309)27.

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Hettiarachchi, Chamil H., Jay N. Meegoda, and J. Patrick A. Hettiaratchi. "Prediction of Waste Settlement in Bioreactor Landfills Incorporating Waste Biodegradation." In Geo-Denver 2007. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40907(226)13.

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Hettiarachchi, C. H., J. N. Meegoda, and J. P. Hettiaratchi. "Towards a Fundamental Model to Predict the Settlements in Bioreactor Landfills." In Geo-Frontiers Congress 2005. Reston, VA: American Society of Civil Engineers, 2005. http://dx.doi.org/10.1061/40789(168)51.

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Avinash, Lagudu S., and Anumita Mishra. "Effects of Leachate Recirculation Systems on Slope Stability of Bioreactor Landfills." In Geo-Congress 2023. Reston, VA: American Society of Civil Engineers, 2023. http://dx.doi.org/10.1061/9780784484661.015.

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Kumar, Girish, and Krishna R. Reddy. "Reliability-Based Performance Assessment of Bioreactor Landfills Using Coupled Hydro-Bio-Mechanical Framework." In Geo-Risk 2017. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480700.048.

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Khire, Milind V., and Tryambak Kaushik. "Experimental and Numerical Evaluation of Liquid Injection Using Horizontal Trench System for Bioreactor Landfills." In GeoCongress 2012. Reston, VA: American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412121.356.

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Hettiarachchi, Hiroshan, and Louis Ge. "Use of Geogrids to Enhance Stability of Slope in Bioreactor Landfills: A Conceptual Method." In International Foundation Congress and Equipment Expo 2009. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/41023(337)66.

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Reports on the topic "Bioreactor landfills"

1

Zhao, Xiando, Thomas Voice, and Syed A. and Hashsham. Bioreactor Landfill Research and Demonstration Project Northern Oaks Landfill, Harrison, MI. Office of Scientific and Technical Information (OSTI), August 2006. http://dx.doi.org/10.2172/939088.

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Oldenburg, Curtis M. T2LBM Version 1.0: Landfill bioreactor model for TOUGH2. Office of Scientific and Technical Information (OSTI), May 2001. http://dx.doi.org/10.2172/799552.

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Barton & Loguidice, P. C. Mill Seat Landfill Bioreactor Renewable Green Power (NY). Office of Scientific and Technical Information (OSTI), January 2010. http://dx.doi.org/10.2172/1051540.

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Ramin Yazdani, Jeff Kieffer, Kathy Sananikone, and Don Augenstein. Full Scale Bioreactor Landfill for Carbon Sequestration and Greenhouse Emission Control. Office of Scientific and Technical Information (OSTI), March 2005. http://dx.doi.org/10.2172/912519.

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Ramin Yazdani, Jeff Kieffer, and Heather Akau. FULL SCALE BIOREACTOR LANDFILL FOR CARBON SEQUESTRATION AND GREENHOUSE EMISSION CONTROL. Office of Scientific and Technical Information (OSTI), September 2002. http://dx.doi.org/10.2172/890982.

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Ramin Yazdani, Jeff Kieffer, and Heather Akau. FULL SCALE BIOREACTOR LANDFILL FOR CARBON SEQUESTRATION AND GREENHOUSE EMISSION CONTROL. Office of Scientific and Technical Information (OSTI), August 2003. http://dx.doi.org/10.2172/886513.

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Ramin Yazdani, Jeff Kieffer, and Heather Akau. FULL SCALE BIOREACTOR LANDFILL FOR CARBON SEQUESTRATION AND GREENHOUSE EMISSION CONTROL. Office of Scientific and Technical Information (OSTI), February 2003. http://dx.doi.org/10.2172/886566.

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Yazdani, Ramin, Jeff Kieffer, and Heather Akau. FULL SCALE BIOREACTOR LANDFILL FOR CARBON SEQUESTRATION AND GREENHOUSE EMISSION CONTROL. Office of Scientific and Technical Information (OSTI), August 2002. http://dx.doi.org/10.2172/803846.

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Yazdani, Ramin, Jeff Kieffer, and Heather Akau. FULL SCALE BIOREACTOR LANDFILL FOR CARBON SEQUESTRATION AND GREENHOUSE EMISSION CONTROL. Office of Scientific and Technical Information (OSTI), February 2002. http://dx.doi.org/10.2172/794169.

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Yazdani, Ramin, Jeff Kieffer, and Heather Akau. FULL SCALE BIOREACTOR LANDFILL FOR CARBON SEQUESTRATION AND GREENHOUSE EMISSION CONTROL. Office of Scientific and Technical Information (OSTI), January 2002. http://dx.doi.org/10.2172/794170.

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