Management of landfill leachate: The legacy of European Union Directives

Brennan, Raymond B.; Healy, Mark G.; Morrison, Liam; Hynes, Stephen; Norton, Daniel; Clifford, Eoghan

doi:10.1016/j.wasman.2015.10.010

Cited by 149 publications

(75 citation statements)

References 21 publications

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“…This high COD in Stage 1 can be correlated with the presence of easily biodegradable Organic Matter (OM) in the MSW of the city of Campinas, which approximately 43% of OM (Miguel et al, 2016). Brennan et al (2015) observed COD variation of 411 to 7,160 mg L −1 in the leachate composition in Ireland. This variation is lower than that observed in the experimental cell, because in the European Union (EU), the organic wastes, which are sent to sanitary landfills, were reduced.…”

Section: Resultsmentioning

confidence: 94%

“…Landfill leachate may include organic compounds such as benzene, toluene and phenol (Emenike et al, 2012;Aziz et al, 2010;Kulikowska and Klimiuk, 2008), mineral compounds such as Ca, Fe, Mn and Mg (Tatsi and Zouboulis, 2002) and Ag, As, Cd, Cr, Cu, Hg, Ni, Pb and Zn (Mojiri et al, 2016;Gajski et al, 2012;Budi et al, 2016;Brennan et al, 2015;Amor et al, 2015;Hilles et al, 2015;Fauziah et al, 2013;Khattabi et al, 2002). Some of these metals are in a concentration higher than 1.0 mg L −1 (trace metals).…”

Section: Introductionmentioning

confidence: 99%

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Long-Term Characterization of Landfill Leachate: Impacts of the Tropical Climate on its Composition

Filho¹,

Miguel²

2017

American Journal of Environmental Sciences

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Abstract:The disposal of Municipal Solid Waste (MSW) in sanitary landfills produces leachate, whose composition changes depending on the microbial community and the environmental conditions. However, these changes cannot be observed in sanitary landfill because of the superposition of cells, which makes it difficult to determinate the relationship among the phases of biodegradation of MSW, the composition of the leachate and the time required for complete stabilization of the waste. This illustrates the importance of building experimental cells that simulate landfill to monitor the leachate over a long period. This study aimed to analyze the composition of the leachate generated from an experimental cell built on the Delta A sanitary landfill of Campinas City, Brazil, over 945 days. The leachate showed a transition from an acidic anaerobic phase to a methanogenic phase within approximately 100 days. By the one-hundredth day, the leachate showed a characteristically low pH, between 5.0 and 6.0 and a high Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD) such as a young leachate with high biodegradability. Moreover, there was an intense leaching of the metals Cd, Fe, Pb and Mn, with concentrations higher than those allowed for the release in water bodies, according to Brazilian law. After the one-hundredth day, the leachate was characterized as stabilized. The pH increased and the concentration of volatile fatty acid, COD and BOD decreased. Co, Zn, Ni and Cu were leached. The potentially toxic metal concentrations found in the leachate also were above the values allowed by Brazilian law.

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Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Long-Term Characterization of Landfill Leachate: Impacts of the Tropical Climate on its Composition

Filho¹,

Miguel²

2017

American Journal of Environmental Sciences

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“…Since the early 2000s, the EU has made many efforts to develop and commercialize waste resource and biomass energy-related technology through green papers on waste resource and biomass energy action plans. For example, the "Landfill Directive", issued in 1999, prohibits and in turn has continuously decreased direct landfill of recyclable and reclaimable wastes [18][19][20].…”

Section: Overview Of Waste Treatment Methodsmentioning

confidence: 99%

Economic and Environmental Cost Analysis of Incineration and Recovery Alternatives for Flammable Industrial Waste: The Case of South Korea

Kim

Jeong

2017

Sustainability

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Abstract:As the generation of industrial wastes increases, waste treatment is steadily becoming a serious economic and environmental issue. Existing waste has mainly been treated by landfilling after incineration. A shortage of landfill sites necessitates waste management alternatives other than traditional incineration and landfill. This paper focuses on a cost-benefit analysis that evaluates the economic and environmental performances of five treatment strategies for flammable industrial wastes: incineration, refuse plastic fuel (RPF) boiler, RPF cement furnace, cement furnace after shredding of wastes, and paper incineration after shredding of wastes. For such purposes, our model considered the entire process of each waste treatment, which involves collection, transportation, treatment, recovery, and the disposal of flammable industrial wastes that pose risks to their surroundings. Case studies of each treatment processes are reviewed, and a cost-benefit analysis is performed to evaluate and identify the selection of treatment and disposal facilities, along with an allocation of flammable industrial wastes and waste residues from generators to treatment and disposal facilities and transportation routes, in order to achieve the minimum economic and environmental costs.

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“…These stringent emission limits have caused increasing concern to WWTPs that treat leachate with high ammonia levels and is one of the main reason why WWTP"s are reluctant to treat LFL. This has resulted in over 30 % of WWTPs in Ireland rejecting leachate during the period 2010-2015 [8,10,20]. Leachate used in this trial contained ammonia concentrations of 1040 mg.l -1 N which was reduced to 95 mg.l -1 N, in the final effluent.…”

Section: Trial 3: Overall Bioremediation Potentialmentioning

confidence: 99%

“…However, in Ireland, the most common treatment practice is to discharge leachate to sewers (51%) or removal by tanker for treatment in WWTPs (48%) with less than 1% being treated on-site. This compares unfavourably to other EU countries, for example, France, where 79% of all leachate is treated onsite [19,20]. The main problem with the implementation of onsite treatment is the high capital cost, which can range from €260,000 for constructed wetlands to €500,000 for SBR systems, and operational costs [9,10,19].…”

Section: Introductionmentioning

confidence: 96%

Bioremediation of Landfill Leachate Using Isolated Bacterial Strains

Morris¹,

Garcia-Cabellos²,

Enright³

et al. 2018

IJEBB

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Landfilling is one of the most common and widely accepted practices for the disposal of waste throughout the world. Leachate, a major drawback of landfilling, continues to be produced at vast rates and current treatment options are costly and often inadequate. The management of leachate is of economic and environmental importance, due to its potential to cause contamination to ground and surface water. This research focuses on treating leachate in a cost-effective manner through bioremediation. Microorganisms were isolated from landfill leachate (LFL) and screened to determine their ability to remediate a wide range of compounds found in leachate, such as ammonia, phosphate and nitrate. Selected isolates were identified as belonging to the phylum"s Firmicutes, Actinobacteria, and Proteobacteria, isolates were inoculated into soil contained in a fixed bed column system. The column system was optimised and used for the treatment of LFL over a 10-hour period. High percentage removal rates were achieved for ammonia (>90%) and removal nitrate and phosphate (>60%). Although EPA discharge limits were not achieved, bioremediation using selected microbial strains represents a cost effective treatment option when compared to conventional methods. Research is now required to further optimise this system to achieve discharge limits for all compounds tested.

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Management of landfill leachate: The legacy of European Union Directives

Cited by 149 publications

References 21 publications

Long-Term Characterization of Landfill Leachate: Impacts of the Tropical Climate on its Composition

Long-Term Characterization of Landfill Leachate: Impacts of the Tropical Climate on its Composition

Economic and Environmental Cost Analysis of Incineration and Recovery Alternatives for Flammable Industrial Waste: The Case of South Korea

Bioremediation of Landfill Leachate Using Isolated Bacterial Strains

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