Analysis and Selection of Appropriate Aggregation Function for Calculating of Leachate Pollution Index of Landfill Lysimeter

Rafizul, Islam M.; Alamgir, Muhammed; Sharif, S. M. Shahed

doi:10.5829/idosi.ijee.2012.03.04.11

Cited by 6 publications

(5 citation statements)

References 9 publications

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“…The calculated LPI values of these sites are 7.438, 6.963 and 6.377 for LC1, LC2 and LC3. These values is less when compared to the dump sites in other metropolitan areas such as Punjab, India [5,6,7,32,33,34,10] who all recorded LPI greater than 15, but a low LPI of 3.71, 4.71 and 7.12 was recorded by [15] in the Port-Harcourt City of Nigeria. Thus a low LPI value is not strange.…”

Section: International Letters Of Natural Sciences Vol 57mentioning

confidence: 90%

“…An LPI value which falls below the stipulated standard of 7.378 is accepted and any value above the standard is not accepted [6,7,33,15]. The LPI values of the three dumpsites investigated were below 7.378.…”

Section: International Letters Of Natural Sciences Vol 57mentioning

confidence: 99%

“…Further contaminants are added depending on the type of solid waste and biodegradation stage [6]. Many factors influence the leachate composition including the types of wastes deposited in the landfill, composition of wastes, moisture content, the particle size, the degree of compaction, the hydrology of the site, the climate, and age of the fill and other site specific conditions such as landfill design and type of liner used if any [6,7]. As a result, surface water, groundwater reservoirs and soil layers become vulnerable to pollution from the dumpsite.…”

Section: Introductionmentioning

confidence: 99%

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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

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Section: International Letters Of Natural Sciences Vol 57mentioning

confidence: 90%

Section: International Letters Of Natural Sciences Vol 57mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Godwin

Edjere

2016

ILNS

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“…It is a solo number ranging between 5-100, based on the Delphi technique. 16 This value reveals the total contamination capacity of a landfill built on some parameters of leachates at a given time. 17 LPI is a growing environmental indicator index, where the high values validate the poor situations of the landfills, and the low value represents less contamination potential.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Contamination Potential in Okhla Landfill, New Delhi by using Leachate Pollution Index

Angmo

Kharayat

Shah

2023

Curr. World Environ

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Landfill leachate generation from a landfill site is one of the main problems for both developed and developing countries around the world. Leachates liberated from the site contain various organic, inorganic, heavy metals, and sometimes hazardous chemical and organic pollutants, which are the origin of the deterioration of air and water quality in its vicinity. The present attempt was performed to assess seasonal variation of the leachate quality, and also determine three sub-indices of leachate which are LPIorg, LPIin, and LPIhm, and the overall LPI of operational, uncontrolled landfills in South Delhi by using leachate pollution index (LPI). Around twenty-five (25) parameters were analyzed during pre-monsoon, monsoon, and post-monsoon seasons from the collected leachate samples. Out of twenty-five pollutants, COD, BOD, NH4-N, EC, and TDS were found beyond the set standard limit in all seasons. Other pollutants like TKN, TSS, TCB, and Cl were also found in high concentrations. Arsenic (As) concentration was found beyond permissible during post-monsoon. The concentration of lead (Pd) in the pre and post-monsoon season was observed beyond the standard limit. Sub-LPI indices in the pre-monsoon season were observed as LPIorg 82.0, LPIin 40.8, and LPIhm 6.9, and likewise, Sub-LPI in monsoon season were LPIorg 81.4, LPIin 25.5, and LPIhm 5.2 and Sub-LPI post-monsoon season was calculated as LPIorg 90.5, LPIin 30.2 and LPI hm 6.2. Almost in all the seasons, LPIorg i.e. organic pollutants was dominated then followed by LPIin, and LPIhm. The overall LPI value of the study area during the pre-monsoon, monsoon and post-monsoon was 32.5, 28.2 and 32.0, respectively. It was observed that overall LPI (calculated) was maximum during pre-monsoon followed by post-monsoon and monsoon. LPI value was beyond the standard limit, except for LPI hm, which was below the standards. It was recommended that more waste-to-energy plants and decentralized waste segregation units need to be set up, to avoid direct dumping of all mixed waste in the landfill sites.

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“…To avoid water contamination and other adverse effects of leachates, in developed countries, landfills are designed with clay or plastic liners and leachate management setups to prevent the movement of leachate into the environment [ 10 ]. However, in most developing countries, most landfills do not meet the standards of those in developed countries [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of genotoxic and oxidative stress potential of Ajakanga Landfill Leachate in rats

Arojojoye¹,

Nwaechefu²,

Nkwadinamor³

2022

Environ Anal Health Toxicol

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Genotoxicity and oxidative stress potential of Ajakanga Landfill Leachate (ALL) were investigated in this study. Forty-two male albino rats of the Wistar strain (100 g and 150 g) were divided equally into six groups. Group A (control) animals were given distilled water as drinking water for forty-five days; while groups B-F animals were exposed to 12.5%, 25%, 50%, 75% and 100% leachate respectively via drinking water for forty-five days. The effect of the leachate was assessed on markers of oxidative stress in the liver, kidney and testes of rats; markers of liver function (Alanine aminotransferase (ALT) and Aspartate aminotransferase (AST) were determined in the serum and the genotoxic effect of the leachate was investigated using micronucleus assay. Physicochemical and heavy metal analysis were also carried out on the leachate sample. Exposure to ALL resulted in increase in the activities of ALT and AST. A significant increase in malondialdehyde level as well as alterations in antioxidant status was observed in the liver, kidney and testes of the rats compared with control. There was also significant increase in micronuclei formation in the bone marrow of rats exposed to the leachate. Physicochemical and heavy metal analysis of the leachate revealed the presence of some heavy metals at high concentrations as well as other toxic constituents and the total number of active bacteria in the leachate sample were also high. In conclusion, ALL induced oxidative stress and genotoxicity in rats. This suggests that the leachate may be toxic to humans if exposure occurs.

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Analysis and Selection of Appropriate Aggregation Function for Calculating of Leachate Pollution Index of Landfill Lysimeter

Cited by 6 publications

References 9 publications

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

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

Assessment of Contamination Potential in Okhla Landfill, New Delhi by using Leachate Pollution Index

Evaluation of genotoxic and oxidative stress potential of Ajakanga Landfill Leachate in rats

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