Leachate quality from landfilled MBT waste

Robinson, Howard; Knox, K.; Bone, Brian; Picken, A.

doi:10.1016/j.wasman.2005.02.003

Cited by 58 publications

(42 citation statements)

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“…4 reveals that COD levels remained steady at approximately 500 mg/L, this indicates that a significant proportion of degradable organics were still present in leachate of lysimeter-B. COD did not further reach high levels after the onset of methanogenesis as in other investigations [13]. Furthermore, there was a negligible acidic inhibition evident in the early stages of degradation process, as was found in other studies [14].…”

Section: Resultssupporting

confidence: 67%

“…Ammonia was released from the waste by the decomposition of proteins and there is no mechanism for its degradation under methanogenenic condition. So, only leaching can decrease the NH 4 -N [13]. Here, it can be established that variation of TKN and NH 4 -N in A 1 and A 2 system of open dump lysimeter-A may be occurred due to the providing of 400 mm thick CCL as a barrier between the detection and collection system of lysimeter-A.…”

Section: Behavior Of Tkn and Nh 4 -Nmentioning

confidence: 84%

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Influence of Landfill Operation and Tropical Seasonal Variation on Leachate Characteristics: Results from Lysimeter Experiment

Rafizul¹,

Alamgir²

2012

IJEE

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This study demonstrates the influence of lysimeter operational condition and tropical seasonal variation of leachate characteristics generated from municipal solid waste (MSW) deposited in landfill lysimeter at KUET campus, Bangladesh. Three different situations of landfill were considered here as well as both the open dump lysimeter-A having a base liner and sanitary landfill lysimeter-B and C at two different types of cap liner were simulated. The leachate characteristics, leachate generation and climatic influence parameter had been continually monitored, from June 2008 to May 2010. This period covers both dry and rainy season. The leachate generation followed the rainfall pattern and the open dump lysimeter-A without top cover was recorded to have the highest leachate generation. Moreover, the open dump lysimeter-A had lower concentration and load of total kjeldahl nitrogen (TKN), ammonia nitrogen (NH 4 -N) and dissolved organic carbon (DOC), while chemical oxygen demand (COD) and biological oxygen demand (BOD 5 ) concentration were higher compared with sanitary lysimeter-B and C. On the other hand, sanitary lysimeter-B, not only had lowest leachate generation, but also produced reasonably low COD and BOD 5 concentration compared with open dump lysimeter-A. Based on evaluated results, it was also concluded that metal concentrations which were comparatively higher in leachate of open dump lysimeter were Ca and K, however, the heavy metal concentrations of Cd, Cu, Zn and Mn, and those apparently lower were metals of Na, Mg and Fe as well as heavy metals of Cr, Pb and Ni. However, significant release of heavy metals under open dump lysimeter was observed compared to sanitary lysimeter. Moreover, meaningful correlation between DOC and leaching of Cu and Pb was observed. Result reveals that lysimeter operational mode had direct effect on leachate quality. Finally, it can be concluded that the knowledge of leachate quality will be useful in planning and providing remedial measures of proper liner system in landfill design and leachate treatment.

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Section: Resultssupporting

confidence: 67%

Section: Behavior Of Tkn and Nh 4 -Nmentioning

confidence: 84%

Influence of Landfill Operation and Tropical Seasonal Variation on Leachate Characteristics: Results from Lysimeter Experiment

Rafizul¹,

Alamgir²

2012

IJEE

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“…According to previous studies, the mechanical and biological treatment of waste before landfilling can considerably reduce the organic strength of leachates. Nevertheless, levels of nonbiodegradable organic matter in these leachates are typically as strong as, if not stronger than leachates from conventional landfills [14].…”

Section: Resultsmentioning

confidence: 99%

Characterization of the leachate produced in the closed cells of a landfill site at Alhendín (Granada, Spain)

Gálvez

Ramos

Rodríguez

et al. 2008

WIT Transactions on Ecology and the Environment

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Landfill leachates are currently one of the main problems associated with the elimination of wastes at landfills and one of the most polluting effluents. They have a complex composition, which includes dissolved organic matter, inorganic macrocomponents, heavy metals and xenobiotic organic compounds. Leachate characterization is thus an essential factor to be considered in the design of an effective treatment system. Samples were taken of the leachate produced in the closed cells of a landfill site at Alhendín (Granada, Spain) for a period of more than one year. The analyses performed included COD, BOD 5 , solids, ammonia, the main cations and anions, pH, redox potential, and conductivity. The results obtained show high concentrations of different pollutants. Leachate strength followed a seasonal pattern, which can be mainly attributed to variation in rainfall and temperatures as well as evaporation rates. We found that most of the parameters analyzed showed a close correlation. The principal component analysis was applied to the data with a view to evaluating the interrelationships between parameters. It was thus possible to describe the data in terms of only four components.

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“…By adding bivalent iron, Fe 2 + (electro-Fenton), the reaction may be further enhanced [24][25][26]. [27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Electro-Oxidation Suitability for Landfill Leachate Treatment through an Experimental Study

et al. 2013

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This paper examines the efficiency of electro-oxidation used as the single pretreatment of landfill leachate. The experiments were performed on three different types of leachate. The results obtained using this electrochemical method results were analyzed after seven days of treatment. The main characteristics of leachate and a diagram of the experimental apparatus are presented. The overall objectives were to contribute to the knowledge of electrochemical treatments for the reduction of COD, BOD 5 , ammonium, and total suspended solids, and also to examine whether there was any resulting hexavalent chromium in the liquid sample. The yields obtained were considered satisfactory, particularly given the simplicity of this technology. Like all processes used to treat refluent water, the applicability of this technique to a specific industrial refluent needs to be supported by feasibility studies to estimate its effectiveness and optimize the project parameters. This could be a future development of the work.

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Leachate quality from landfilled MBT waste

Cited by 58 publications

References 1 publication

Influence of Landfill Operation and Tropical Seasonal Variation on Leachate Characteristics: Results from Lysimeter Experiment

Influence of Landfill Operation and Tropical Seasonal Variation on Leachate Characteristics: Results from Lysimeter Experiment

Characterization of the leachate produced in the closed cells of a landfill site at Alhendín (Granada, Spain)

Analysis of Electro-Oxidation Suitability for Landfill Leachate Treatment through an Experimental Study

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