Seasonal alterations of landfill leachate composition and toxic potency in semi-arid regions

Tsarpali, Vasiliki; Kamilari, Maria; Dailianis, Stefanos

doi:10.1016/j.jhazmat.2012.07.007

Cited by 78 publications

(23 citation statements)

References 59 publications

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“…Similar findings were reported by Mangimbulude et al (2009), who studied seasonal dynamics in leachate from a tropical landfill in Indonesia. Tsarpali et al (2012) investigated the effect of rainfall on leachate parameters in semi-arid regions observing that the EC of leachates decreased with increasing rainfall consistent with the current observation and similar to that reported by Bagchi (1994) and El-Fadel et al (2002) (0.58-55 g/l) and Tatsi and Zouboulis (2002) (3.8-76 g/l). EC and TDS are closely related and are good indicators of total salinity (Walton, 1989).…”

Section: General Chemistrysupporting

confidence: 87%

Field investigation of the quality of fresh and aged leachates from selected landfills receiving e-waste in an arid climate

et al. 2014

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Section: General Chemistrysupporting

confidence: 87%

Field investigation of the quality of fresh and aged leachates from selected landfills receiving e-waste in an arid climate

et al. 2014

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“…Some studies have shown that landfill leachate present slow concentrations of heavy metals (Ehrig, 1983) and variations in these concentrations occur seasonally thus minimizing their impact (Tsarpali et al, 2012).…”

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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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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“…Open landfills are the primary means of municipal solid waste (MSW) disposal in many countries worldwide including Nigeria because they offer low economic costs and have capacity to accumulate large amounts of solid waste compared to other methods such as incineration [1,2]. The absence of proper engineered landfills for disposal of wastes by the local and state governments has given rise to the proliferations of open dumps that are scattered in every nook and cranny of the country.…”

Section: Introductionmentioning

confidence: 99%

Leachate Characterization and Leachate Pollution Index from Landfill Dump Sites in Warri Metropolis, Nigeria

Godwin

Edjere

2016

ILNS

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ABSTRACT. The paucity of standard engineered landfills in Nigeria has given rise to the proliferation of open waste dumpsites. The environment can be impacted by leachates from these dumpsites if not properly managed. This study assessed the characteristics of leachates from three open dumpsites in Warri Metropolis and its contamination potential using leachate pollution index (LPI). The dump sites had low pH with acidic level lower than the recommended limit. The calculated LPI values of the three sites ranges from 6.377 to 7.438. These values are low when compared to open dumpsites in other metropolitan areas of similar climatic conditions. The low value of LPI for leachate indicates relatively lower contaminant potential due to low concentrations of heavy metals, relatively young age of the landfill as well as low population and organic origin of the wastes. The calculated low LPI value does not in any way preclude the continuous monitoring of the dumpsites as the values recorded are just slightly below the threshold level. It is recommended that there should be an upgrade of all open dumpsites to a standard engineered landfill with a robust and effective monitoring put to curtail future release of deleterious materials from these dumpsites

show abstract

Seasonal alterations of landfill leachate composition and toxic potency in semi-arid regions

Cited by 78 publications

References 59 publications

Field investigation of the quality of fresh and aged leachates from selected landfills receiving e-waste in an arid climate

Field investigation of the quality of fresh and aged leachates from selected landfills receiving e-waste in an arid climate

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

Leachate Characterization and Leachate Pollution Index from Landfill Dump Sites in Warri Metropolis, Nigeria

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