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Dissertations / Theses on the topic 'Water leachate'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Scott, Jennifer (Jennifer E. )., of Western Sydney Hawkesbury University, and Faculty of Science and Technology. "Designing a constructed wetland to treat landfill leachate." THESIS_FST_XXX_Scott_J.xml, 1995. http://handle.uws.edu.au:8081/1959.7/600.

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The aim of this project was to identify a suitable solution to the problem of landfill leachate at the North Katoomba landfill site. Options were affected by a range of constraints including economics, location and the intrusion of ground water into the landfill. The initial goal was to contain and treat the leachate on site, with the eventual target to discharge into the nearest receiving waters. A constructed wetland option was devised and researched, involving identification of the major pollutants contained within the leachate, developing a concept design and estimating the likely removal

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2

Verrall, Karen Elizabeth. "Extraction and characterisation of colloids in waste repository leachate." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/10558.

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Inorganic colloids are ubiquitous in environmental waters and are thought to be potential transporters of radionuclides and other toxic metals. Colloids present large surface areas to pollutants and contaminants present in waters and are therefore capable of sorbing and transporting them via groundwater and surface water movement. Much research has been and is currently being undertaken to understand more fully the stability of colloids in different water chemistries, factors which affect metal sorption onto colloids, and the processes which affect metal-colloid transport. This thesis first in

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3

Wong, Wai-kin. "Biotreatment of domestic sewage and landfill leachate by water hyacinth (eichhornia crassipes (mart.) solms) /." Hong Kong : University of Hong Kong, 1997. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18887429.

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4

Wong, Wai-kin, and 王偉堅. "Biotreatment of domestic sewage and landfill leachate by water hyacinth (eichhornia crassipes (mart.) solms)." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1997. http://hub.hku.hk/bib/B31214757.

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5

Hunt, Joseph Edward. "Evaluation of Leachate Chemistry from Coal Refuse Blended and Layered with Fly Ash." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/36050.

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Alkaline fly ash has been studied as a liming agent within coal refuse fills to reclaim acid-forming refuse. Previous studies focused on bulk blending ash with acid-forming (pyritic) refuse. A better representation of field conditions is a â pancake layerâ of ash above the refuse. A column study was initiated to evaluate the leachate chemistry from acid-forming refuse-ash bulk blends vs. ash over refuse layers. An acidic and an alkaline ash were blended with, or layered over, acid-forming refuse and sandstone and packed into columns which were leached with deionized water twice a week fo

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6

Schock, Kevin A. "Predicting Seepage of Leachate from the St. Johns Landfill to Ground and Surface Water Systems." PDXScholar, 1993. https://pdxscholar.library.pdx.edu/open_access_etds/4648.

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Determination of the vertical and horizontal groundwater hydraulic gradient within a landfill is the first step in determining the potential of groundwater contamination from the landfill leachate. The length of a study and the frequency at which measurements are recorded can greatly affect the description of the local groundwater environment. A more comprehensive analysis can be preformed for longer periods of study and greater measurement frequency. The intent of this study was to install a continuous groundwater level monitoring system around the st. Johns Landfill for a minimum study lengt

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7

Paul, Craig M. "Microbial and Chemical Affects on Leachate from Calcareous Soils Treated with Wastewater Effluent." BYU ScholarsArchive, 2005. https://scholarsarchive.byu.edu/etd/462.

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Increasing human populations are placing greater strain on water resources, prompting the use of treated wastewater effluent for irrigation in some areas, including the desert regions of the Western United States. To determine the potential effects of using secondary effluent for irrigation, we applied wastewater effluent and irrigation waters to natural and artificially constructed calcareous soils in greenhouse and field lysimeters, and in soil columns. The leachate from one field lysimeter contained increased fecal coliform counts than the effluent. Leachate coliform counts were decreased o

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8

Krögerström, Axel. "Removal of per- and polyfluoroalkyl substances(PFAS) from contaminated leachate usingaeration foam fractionation." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-444809.

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Leachate from landfills is contaminated in many ways and per- and polyfluoroalkyl substances (PFAS)-contamination is one of them. Recent studies have demonstrated the environmental and human concerns of PFAS. Therefore, the treatment of leachate is important. One technique to reduce the PFAS concentration is by using aeration and foam fractionation. Hovgården is a landfill northeast of Uppsala, where previous measurements have shown high levels of PFAS in the leachate. Earlier small-scale experiments using aeration foam fractionation as a treatment technique for PFAS removal have been done suc

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9

TÃvora, Marcelo Aguiar. "Impact Socioenvironmental Release of Leachate and Sewage in Water Resources: The Case of Pond Borzeguim, Itapipoca-CE." Universidade Federal do CearÃ, 2010. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9009.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>O municÃpio de Itapipoca localiza-se na zona norte da regiÃo do estado do CearÃ e dista 133 km da capital, Fortaleza. Sua populaÃÃo Ã estimada em 114 mil habitantes e a cidade enfrenta um problema ambiental comum a outras cidades cearenses: a destinaÃÃo dos resÃduos sÃlidos em lixÃes. O lixÃo do municÃpio de Itapipoca foi instalado em 2002 em Ãrea de grande vulnerabilidade socioambiental, nas proximidades de uma importante lagoa e de uma comunidade que dela se utiliza para atividades econÃmicas e consumo prÃprio. A comun

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Ruegg, Josephine. "Field assessment of the environment impact of potential pollutants on land irrigated with leachate generated from municipal solid wastes." Thesis, University of Exeter, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358163.

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11

Iskander, Syeed Md. "Advanced Technologies for Resource Recovery and Contaminants Removal from Landfill Leachate." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/89218.

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Landfill leachate contains valuable, recoverable organics, water, and nutrients. This project investigated leachate treatment and resource recovery from landfill leachates by innovative methods such as forward osmosis (FO), bioelectrochemical systems (BES), and advanced oxidation. In this study, a microbial fuel cell (MFC) removed 50-75% of the ammonia from a leachate through the electricity driven movement of ammonium to the cathode chamber followed by air stripping at high pH (> 9). During this process, the MFC system removed 53-64% of the COD, producing a net energy of 0.123 kWh m-3. Simila

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12

Ingfeldt, Isac. "Evaluation of Carbon Source Addition on Denitrification Efficiency : A study in a continuous biological leachate water treatment system." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-278587.

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In 2014 SÖRAB constructed a continuous biological treatment system (KBR) to handle leachate waterfrom the landfill at the facility in Löt, north of Stockholm. The KBR is mainly focused on removal ofammonium nitrogen which would otherwise be released in to the recipient and contribute toeutrophication and damage to the environment. This project has focused on replacing the currentcarbon source in the process Brenntaplus VP1 and evaluating the efficiency of denitrification andeconomy of transitioning to a new carbon source. The carbon sources glycerol and ethanol wereevaluated and compared to Br

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Okeke, Nnadozie Kennedy. "Investigation Into the Source of Contamination of Surface Waters Flowing Through The WrightState University Woods." Wright State University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=wright162938168838397.

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Gitari, Wilson Mugera. "Evaluation of the leachate chemistry and contaminants attenuation in acid mine drainage by fly ash and its derivatives." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6041_1254305614.

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<p>This study aimed at understanding the chemistry of the neutralization of the acid mine drainage with fly ash by considering the acid mine drainage : fly ash ratios that produce neutral and alkaline process waters.</p>

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Atmosudirdjo, Aryani. "Simulation of Leachate Generation from a Waste Rock Dump in Kiruna Using HYDRUS-1D." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-379225.

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The percolation of water through waste rock dumps at mine sites can lead to the production of a leachate with high concentrations of dissolved metals, sulfate and nitrogen compounds. It is important to understand how water flows in waste rock dumps in order to predict the environmental impact of this leachate on recipients. The dynamics of percolation and leachate discharge are controlled by climatological conditions at the site, where relatively large flows in northern Sweden correspond to snowmelt during late Spring. Rock dumps are often tens of meters in height, resulting in an unsaturated

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Lundberg, Paula. "Geochemical processes in mine waste subjected to a changing chemical environment: Fe speciation in leachate water from column experiments." Thesis, Luleå tekniska universitet, Geovetenskap och miljöteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-65380.

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Oxidation of sulfidic mine waste is of significant environmental concern due to the consequent formation of acid rock drainage (ARD), deteriorating the water quality of natural water systems. Iron (Fe) and sulfur (S) are two major redox elements involved in these reactions and typically the major redox-sensitive elements (whose solubility, speciation, and mobility are affected by pH and Eh) in water affected by ARD. Measurements of Fe and S species concentrations may reveal valuable information about geochemical processes in mine waste but are typically included when analyzing the chemical com

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Davidson, Gregg Randall 1963. "The applicability of boron isotopes in determining fate and transport of leachate from electric utility solid waste." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/276980.

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The boron isotopic ratios of three contaminated ground water samples and of leachate from four fly ash samples are shown to be significantly different than the isotopic ratio of naturally occurring boron in a selected ground water. Analysis is performed using thermal ionization mass spectrometry with a precision of less than 1 per mil. Inductively coupled plasma mass spectrometry is shown to be ineffective for this application. Boron is isolated from solution and concentrated using Amberlite IRA-743 resin with no isotopic fractionation observed. Boron desorption from fly ash is shown to be rap

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18

Vinterek, Sebastian. "Rening av lakvatten vid deponin Degermyran i Skellefteå kommun : Utvärdering av nuvarande reningseffekt och simulering av mängden bildat lakvatten under 2000-talets klimatförändringar." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-104070.

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At Degermyran landfill, situated in the municipal Skellefteå, a leachate treatment system was installed in 2005. One of the aims of this study was to investigate how well the treatment system works by using data from chemical measurements made on the leachate before and after treatment. Further this study had the purpose of investigating how the predicted climate changes of the 21st century will affect the amount of leachate generated at Degermyran by using a modified version of Thornthwaites water balance model. The treatment system has the ability of reducing manganese by 90 %, nitrogen by 7

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Eriksson, Linda. "Lakvattenrening och kontroll vid deponier : granskning och sammanställning." Thesis, Uppsala University, Department of Earth Sciences, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88869.

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<p>If not purified leachate from landfills would cause damages on the environment. At most landfills in Sweden local treatment of leachate is achieved, at the rest the leachate is transported to sewertreatment. While no comprehensive legal provisions for discharge exist in Sweden there is a difference in discharges between the installations for landfill. If no comprehensive legal provisions is produced guidance must improve.</p><p>Treatment of leachate and self monitoring system at fifteen installations in Sweden has been studied and compared. A study of literature about different treatment so

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20

Kjellgren, Ylva. "Treatment of per- and polyfluoroalkylsubstance (PFAS)-contaminated waterusing aeration foam collection." Thesis, Institutionen för vatten och miljö, Sveriges Lantbruksuniversitet (SLU). Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-423738.

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Landfills are potential sources for PFASs and treatment techniques for landfill leachate are urgently needed. Foam fractionation is an aeration technique which utilizes the tendency of PFASs to escape the liquid phase and build foam. The foam is harvested and with it the contamination. Landfill leachate from Hovgården, Uppsala Sweden contained PFASs of higher concentration than desired and investigations into whether foam fractionation could reduce PFASs amounts were initiated. Landfill leachate containing sum PFASs of 5500 ng/L on average were aerated in two different aeration foam collection

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21

Alm, Max-Bernhard. "Flow pattern analysis of a Surface Flow Constructed Wetland : Treating surface runoff and landfill leachate water from the Löt waste management site." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-285896.

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The waste management and recycling company, Söderhalls Renhållningsverk (SÖRAB) have constructed a surface flow wetland in order to treat surface runoff from the waste management site, Löt. The contaminated water passes several treatment steps until it reaches the wetland and a subsequent soil infiltration step. It is suspected that the flow path of the water through the wetland is short-circuited which may result in a reduced treatment efficiency. The current discharge concentrations of the chemical compounds tested for do not exceed the allowed discharge limits. However, it is of interes

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Karpestam, Einat. "Risk assessment: to surface water in Kallerstadsdiket and Stångån near the closed Kallerstad landfill, Linköping." Thesis, Linnéuniversitetet, Institutionen för biologi och miljö (BOM), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-66831.

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Kallerstaddeponin användes aktivt för deponering av avfall mellan 1950 och 1973. Nedlagda deponier bör dock bedömas med avseende på den risk de utgör för miljö och hälsa. I denna studie, jämfördes nivåerna av zink, nickel, arsenik, koppar, ammoniak, TOT-N och TOC i deponins huvudrecipient, Kallerstadsdiket, med de gränsvärden som fastställts av Havs- och vattenmyndigheten. Därefter uppskattades Kallerstaddeponins direkta bidrag till föroreningsnivån. Slutligen, beräknades spridningsrisken, nämligen den föroreningsbelastning som flödar från Kallerstadsdiket till Stångån, som är en andra recipie

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23

James, Matt. "Detailed characterisation of ground water nitrate/leachate flow in gravelly deposits using EM and GPR methods with particular reference to temporal flow changes." Thesis, University of Canterbury. Geological Science, 2015. http://hdl.handle.net/10092/10270.

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Irthing Road is situated 20 kilometres north of the small town of Lumsden in Northern Southland, New Zealand. Irthing Road is accessed from State Highway 97 and leads north-west for 7 kilometres up the Irthing Creek Valley. The research site is situated 4.4 kilometres from the Irthing Road - State Highway 97 intersection and the area is at 300 metres elevation above sea level on gently south sloping Quaternary alluvial deposits. The study was initiated by Environment Southland and Southern Geophysical Ltd with the intention of investigating the potential uses of near surface geophysics in the

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Hoskins, Tyler Courtney. "Water and nutrient transport dynamics during the irrigation of containerized nursery crops." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/48165.

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Increased water- and fertilizer-use-efficiency in containerized crop production, via reduced water loss, enhances crop-available nutrients while reducing non-point source agrichemical contributions in accordance with regulatory standards. Previous studies detailed nutrient leaching patterns throughout crop production seasons, leaving little known about water and dissolved nutrient (solute) movement through soilless substrates during irrigation. The following experiments evaluated fundamental water and solute transport principles through pine-bark based substrates. 1) Ilex crenata Thunb. 'Benne

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Hjelm, Veronica. "Tungmetaller i lakvatten : avskiljning med mineraliska filtermaterial." Thesis, Uppsala University, Department of Earth Sciences, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88878.

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<p>Four different kinds of filter-materials with reactive surfaces have been studied concerning their capacity to absorb heavy metals in leachate from a municipal waste deposit. The heavy metals studied were: lead, cadmium, copper, mercury, chromium, nickel and zinc. The leachate contains high levels of dissolved organic carbon (DOC) and has a high pH-value along with a high buffer capacity. These characteristics of the leachate make it difficult to remove pollutants and require efficient filters. The filters that were examined in the report are blast-furnace slag with CaO, sand covered with i

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Cema, Grzegorz. "Comparative study on different Anammox systems." Doctoral thesis, Stockholm : KTH, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11933.

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Ali, Ahmed. "Groundwater pollution threats of solid waste disposal in urban Kano, Nigeria : evaluation and protection strategies." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/groundwater-pollution-threats-of-solid-waste-disposal-in-urban-kano-nigeria-evaluation-and-protection-strategies(c5cb7758-d826-4b43-99b4-9fc5bce6aa70).html.

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The practices of solid waste management (SWM) and solid waste disposal (SWD) in Kano metropolis, Nigeria, were examined. The water quality of groundwater sources in the areas adjacent to the SWD sites was monitored in order to evaluate interactions and assess the possibility of groundwater contamination as a result of percolation of the leachates generated in the SWD sites. An integrated approach to the field investigation was employed in the study. This included an extensive desk study; a field survey of all existing SWD sites in the area; leachate and groundwater sampling; and laboratory-bas

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28

Ekholm, Emy. "Bottensubstrat och dess inverkan på reducering av BOD5, COD och TKN i lakvatten genom konstruerade rotzonsanläggningar : En pilotstudie vid Univates, Lajeado – RS Brasilien." Thesis, Högskolan i Halmstad, Ekologi och miljövetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-5179.

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Treatment wetlands been showed efficient for reducing pollutant in waste water. In Lajeado – RS, Brazil the landfill has poor leachate water treatment. It is necessary to supplement the treatment plant because they need to reduce BOD, COD and nitrate of the water going to recipient. A subsurface flow wetland (SSF) can be a good choice. In order to be able to design an efficient SSF it is important to understand how the grain sizes of a substrate affect the reducing of pollutants in waste water. This study focus on two substrate, sand with grain size of 0 - 3 mm and gravel with the grain size

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Ekholm, Emy. "Bottensubstrat och dess inverkan på reducering av BOD₅, COD och TKN i lakvatten genom konstruerade rotzonsanläggningar : En pilotstudie vid Univates, Lajeado – RS Brasilien." Thesis, Halmstad University, Ecology and Environmental Science, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-5179.

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<p>Treatment wetlands been showed efficient for reducing pollutant in waste water. In Lajeado – RS, Brazil the landfill has poor leachate water treatment. It is necessary to supplement the treatment plant because they need to reduce BOD, COD and nitrate of the water going to recipient. A subsurface flow wetland (SSF) can be a good choice. In order to be able to design an efficient SSF it is important to understand how the grain sizes of a substrate affect the reducing of pollutants in waste water. This study focus on two substrate, sand with grain size of 0 - 3 mm and gravel with the grain si

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Tučková, Dominika. "Analýza vodných výluhů biouhlu pomocí separačních metod." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2019. http://www.nusl.cz/ntk/nusl-401943.

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This master's thesis deals with the analysis of biochar extracts by separation methods. All analyzed biochar was produced from waterworks sludge by microwave pyrolysis. The aim of the thesis is the optimization of the sample preparation method and its analysis in a laboratory environment. With the ever-growing world population, the problem of a sustainable economy in both agriculture and waste management is becoming increasingly urgent. This fact has led most countries to consider promoting the so-called Circular Economy. The use of sewage sludge as a feedstock for biochar production is perfec

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Nilsson, Anna. "Optimering av den kemiska reningen vid Fläskebo deponi." Thesis, Uppsala University, Department of Earth Sciences, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88841.

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<p>Landfill leachate contains a variety of contaminants and is created when rainwater percolates the landfill. For landfill management the leachate is the main issue that can cause problems to the environment. At the landfill of Fläskebo, Renova AB treats the leachate in a local treatment plant. The treatment consists of a chemical treatment step with chemical precipitation, flocculation, sedimentation and filtration, and a final step with a carbon and peat filter. Renova has to ensure that the condition of the leachate reaches the regulation set for the landfill before it is released to the r

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Gomes, Tiago Luis. "AVALIAÇÃO QUALI-QUANTITATIVA DO PERCOLADO GERADO NO ATERRO CONTROLADO DE SANTA MARIA RS." Universidade Federal de Santa Maria, 2005. http://repositorio.ufsm.br/handle/1/7670.

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The subject of greater concern related to environmental degradation in a disposal system of urban solid wastes is the leachate generation. The high pollutant power of leachate is due to the presence of organic and inorganic composts formed during the decomposition of wastes. The inadequate leachate management can pollute environmental sites, particularly the soil, surface waters and groundwater basin. Through the verification of a system of treatment conducted by stabilization ponds it is possible to evaluate the efficiency of the process responsible for the removal of pollutants and to esteem

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Pinheiro, Roberta Vieira Nunes. "Risco de contaminação pela presença de disposição final de resíduos sólidos urbanos em bacias de captação superficial de água para abastecimento público no estado de Goiás." Universidade Federal de Goiás, 2017. http://repositorio.bc.ufg.br/tede/handle/tede/7172.

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Submitted by Erika Demachki (erikademachki@gmail.com) on 2017-04-17T17:28:41Z No. of bitstreams: 2 Dissertação - Roberta Vieira Nunes Pinheiro - 2017.pdf: 3792860 bytes, checksum: 7c88e98986a260c816ea80a305ce962a (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-04-18T15:48:25Z (GMT) No. of bitstreams: 2 Dissertação - Roberta Vieira Nunes Pinheiro - 2017.pdf: 3792860 bytes, checksum: 7c88e98986a260c816ea80a305ce962a (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf

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Moraes, Caroline Linke. "Avaliação do passivo ambiental lixão desativado do município de Lages SC." Universidade do Estado de Santa Catarina, 2014. http://tede.udesc.br/handle/handle/1920.

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Made available in DSpace on 2016-12-12T20:12:28Z (GMT). No. of bitstreams: 1 PGEF14MA007.pdf: 4559322 bytes, checksum: 55d9751d276f23795d861f70ded2cdbc (MD5) Previous issue date: 2014-02-25<br>The pollution of soil, surface and groundwater caused by solid waste became the focus of studies around the world, given the recognized potential polluter of environmental liabilities And the large volume of waste generated daily. This study aims to evaluate the environmental liabilities off dump the city of Lages SC. The site in question is located on the left bank of the BR-282 sense Lages / Flor

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Lopes, Adriana Antunes. "Estudo da gestão integrada dos resíduos sólidos urbanos na bacia Tietê-Jacaré (UGRHI-13)." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/18/18139/tde-04032008-125517/.

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Os resíduos sólidos podem poluir e contaminar as águas superficiais e subterrâneas, pela migração de lixiviado gerado em aterros e lixões, o que pode colocar em risco a saúde pública e o ambiente. Assim, o objetivo deste estudo foi analisar a gestão dos resíduos sólidos urbanos na bacia hidrográfica Tietê-Jacaré, pertencente a 13a Unidade de Gerenciamento dos Recursos Hídricos (UGRHI-13) do Estado de São Paulo, bem como verificar a sua influência na qualidade dos recursos hídricos da região, por meio de coletas de água superficial (14 pontos) e subterrânea (20 pontos), localizados nos municípi

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Lind, Linus. "Typhas inverkan på reningsgraden av TKN, BOD5 och COD i en anlagd rotzonsvåtmark i pilotskala." Thesis, Halmstad University, School of Business and Engineering (SET), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-5186.

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<p>Detta examensarbete är utfört på plats i Lajaedo, Brasilien och i anslutning till Sanitário de Lajeado – RS, Brasilien, mellan januari till maj 2010. I samband med denna rapport utfördes två andra examensarbeten inom samma områden. Det är menat att denna rapport skall ligga till grund för framtida projekt och beslut om utökad lakvattenrening.Lajeado ligger i södra Brasilien ca 100 km från atlantkusten. 10 km utanför Lajeado ligger en ung avfallsdeponi på ca 15 000 m2 till ytan med tillhörande lakvattenrening med ett utjämningsmagasin, en syrsättningsbassäng samt sedimentering. Deponin tar e

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VanTrees, Craig. "Analysis of Precipitates and Waters Associated with an Alkaline Leachate, Gulf State Steel Property, Gadsden, Alabama: A Reconnaissance Study." Digital Archive @ GSU, 2010. http://digitalarchive.gsu.edu/geosciences_theses/25.

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Calcite stalactites ranging in length from several inches to a foot long are found forming on the southeastern slag pile at the former Gadsden Steel Mill of the Gulf States Steel Corporation. Analyses of samples collected per EISOPQAM guidelines include the following: petrographic, conductivity, pH, XRD, XRF, TDS, and major cations and anions. Preliminary field pH and conductivity measurements indicate that waters near the slag pile have a pH ranging from 11-12 and a conductivity ranging from 1115-6300 Î¼S/ cm. Titration data indicate that the maximum pH value is 12.5. These calcite stalactite

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Ould, Ali Ouiza. "Impact des décharges à ciel ouvert sur la qualité environnementale de l'Oued Cheliff (Algérie)." Thesis, Perpignan, 2018. http://www.theses.fr/2018PERP0025/document.

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Dans la région traversée par le plus important cours d’eau permanent d’Algérie l’Oued Cheliff, les déchets ménagers sont fréquemment mis en décharges à ciel ouvert, constituant une véritable menace environnementale à cause de la contamination causée par les lixiviats. Deux décharges ont été prises pour étude de cas : la première située sur l’Oued Hillil, affluent secondaire de l’Oued Chéliff et la deuxième localisée sur l’Oued Cheliff.Des prélèvements saisonniers d’eau et de sédiments ont été effectués dans les cours d’eau. Au sein de la décharge les lixiviats et les sols ont aussi été prélevé

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Nordström, Albin. "Denitrification in a Low Temperature Bioreactor System : Laboratory column studies." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-226585.

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Denitrification is a microbially-catalyzed reaction which reduces nitrate to N2 through a series of intermediate nitrogen compounds. Nitrate is a nutrient and its release into the environment may lead to eutrophication, depending on the amount that is released and the state of the recipient. The release of nitrate from the mining industry in Kiruna (Sweden) has been identified as an eutrophication risk, and a denitrifying bioreactor is to be constructed at the site to reduce the nitrate release.Since the denitrification rate decreases with temperature and the temperature in Kiruna during large

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Brücher, Jörg. "The influence of sorption on transport of organic compounds in soil /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5481-6.pdf.

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Öman, Cecilia. "Emissions of organic compounds from landfills /." Stockholm : Tekniska högsk, 1998. http://www.lib.kth.se/abs98/oman0604.pdf.

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SPEER, SEAN. "PASSIVE AND NATURALIZED LANDFILL LEACHATE TREATMENT SYSTEMS FOR SOURCE WATER PROTECTION." Thesis, 2011. http://hdl.handle.net/1974/6821.

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Landfill leachate production is an unavoidable by-product of landfilling solid waste. Mitigation of the adverse environmental impacts of landfill leachate is required at all active and closed landfill sites. Since leachate production continues long after the landfill is closed and no longer generating revenue, management strategies including low-cost passive and naturalized landfill leachate treatment systems are ideal. The past practice of dumping solid waste into unused tracts of land has created many brownfield sites with uncontrolled discharges of leachate to the receiving environment. Bel

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Lu, Yen-Sen, and 盧彥森. "Leachate Water Balance and Its Effects on Slope Stability of Landfill." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/22352415412082253188.

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"Landfill leachate as a source of plant nutrients." 2005. http://library.cuhk.edu.hk/record=b5892390.

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Cheng Chung-yin.<br>Thesis submitted in: December 2004.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2005.<br>Includes bibliographical references (leaves 185-195).<br>Abstracts in English and Chinese.<br>Abstract --- p.i<br>Acknowledgements --- p.vi<br>Table of contents --- p.viii<br>List of tables --- p.xi<br>List of figures --- p.xii<br>List of plates --- p.xiv<br>Plant species used in the experiments --- p.xv<br>Chapter 1 Introduction<br>Chapter 1.1 --- Soil wastes as an environmental challenge --- p.1<br>Chapter 1.2 --- Landfilling --- p.1<br>Chapter 1.2.1 --- Waste degra

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Hojem, David John. "Water balance and the migration of leachate into the unsaturated zone beneath a sanitary landfill." Thesis, 2015. http://hdl.handle.net/10539/16798.

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Rakgotho, Thabisile. "Toxicity and biodegradability assays for hazardous landfill leachate and textile size effluents." Thesis, 2005. http://hdl.handle.net/10321/1999.

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Submitted in fulfillment of the academic requirements for the Degree of Master of Technology: Biotechnology, Durban Institute of Technology, 2005.<br>The cumulative effects of pollution have led to increased public concern, which is resulting in strict legislation on the discharge of wastes in whatever state they are present, i.e. solid, liquid or gas. Currently, in South Africa, effluents with a high organic load are sent to landfills or marine outfall because the cost of discharge to sewer is prohibitive. In regions where there is a net surplus of rainfall, landfill sites have the potent

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Wallace, JACK. "EVALUATING THE PERFORMANCE AND WATER CHEMISTRY DYNAMICS OF PASSIVE SYSTEMS TREATING MUNICIPAL WASTEWATER AND LANDFILL LEACHATE." Thesis, 2013. http://hdl.handle.net/1974/8440.

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This thesis consists of work conducted in two separate studies, evaluating the performance of passive systems for treating wastewater effluents. The first study involved the characterization of three wastewater stabilization ponds (WSPs) providing secondary and tertiary treatment for municipal wastewater at a facility in Amherstview, Ontario, Canada. Since 2003, the WSPs have experienced excessive algae growth and high pH levels during the summer months. A full range of parameters consisting of: pH, chlorophyll-a (chl-a), dissolved oxygen (DO), temperature, alkalinity, oxidation-reduction pote

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Chai, Po-Chung, and 蔡博中. "Study on Heavy Metals in Leachate,Effluent and Underground Water from Sanitary Landfills in Northern Taiwan." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/99505315666335003680.

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碩士<br>國立臺灣大學<br>環境衛生研究所<br>87<br>To assess the distribution of the concentration of all heavy metals in the leachate, effluent and underground water in each sanitary landfill, and to evaluate the influences of different category of garbage, covered by soil or not, and the change of weather to these concentration distribution, this study has taken 143 water samples from three landfills, SCK, SL, and SS in great Taipei area over ten months period from August 1998 to May 1999, Among these three landfills, SS is mainly for untreated garbage, SL is mainly for burning ash, and SCK is for both untrea

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Van, Zweel Karl Nicolaus. "Development of a geochemical model to predict leachate water quality associated with coal mining practices / Karl Nicolaus van Zweel." Thesis, 2015. http://hdl.handle.net/10394/15731.

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South Africa mines coal to supply in the growing energy demands of the country. A majority of these mines are opencast resulting in back filled pits and above ground disposal facilities. Leachate emanating from these disposal sites are saline and in most cases highly acidic. Currently the standard testing procedure to quantify expected leachate qualities include Acid Base Accounting (ABA), Net-acid Generating test (NAG), static-and kinetic leaching. The aim of this study is to model standard humidity cell leach tests performed using the PHREEQC code. This model can then be scaled up to field c

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Traut, Melanie. "Treatment of landfill leachate from a H:H and G:L:B+ site in a pilot scale aerobic nitrogen removal biological system." 2007. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001050.

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Thesis (MTech. degree in Water Care ) - Tshwane University of Technology, 2007.<br>This research project investigated the total nitrogen removal capabilities of a nitrification and denitrification system treating two medium strength municipal landfill leachates. The characteristics of the leachates differed as one was obtained from general waste (GLB+) and the other from mixed industrial and general waste (H:h). This project was commissioned to develop a leachate treatment philosophy and a leachate management plan for the Vissershok landfill site near Cape Town. The aim of this leachate treatm

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