Heavy Metal Fractionation and Leachability Studies on Fresh and Partially Decomposed Municipal Solid Waste

Esakku, S.; Karthikeyan, Obulisamy Parthiba; Joseph, Kurian; Nagendran, R.

doi:10.1061/(asce)1090-025x(2008)12:2(127)

Cited by 10 publications

(5 citation statements)

References 9 publications

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“…Leaching is a method for removing soluble components from a solid matrix [19,20]. The batch extraction procedure is a short-term leaching test intended to estimate the release potential of constituents from waste materials over a range of environmental conditions [21], and to evaluate potential risks to human and/or groundwater [22].…”

Section: Methodsmentioning

confidence: 99%

Geochemical Assessment and Mobility of Undesired Elements in the Sludge of the Phosphate Industry of Gafsa-Metlaoui Basin, (Southern Tunisia)

Smida

Souissi²,

Salem

et al. 2021

Applied Sciences

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The raw phosphates in the Gafsa-Metlaoui phosphate basin are valorized by wet processes that are performed in the laundries of the Gafsa Phosphates Company (CPG, Gafsa, Tunisia) to reach market grades (>28% P2O5). This enrichment process allows the increase of P2O5 content by the elimination of the coarse (>2 mm) and fine (<71 µm) fractions. Mineralogical analysis has shown that all the investigated materials (raw phosphate, marketable phosphate, coarse waste, and fine waste) from the laundries of M’Dhilla-Zone L and Redeyef are both composed of carbonate fluorapatite, carbonates, quartz, gypsum, clays, and clinoptilolite. Chemical analysis shows that Cr, Cd, Zn, Pb, and U are concentrated in the fine wastes and associated with the clay–phosphate fraction. The rare earth elements are more concentrated in both raw and marketable phosphates. Drilling and sludge-water analysis, along with leaching tests conducted on the fine wastes, showed that, due to phosphate industry, cadmium, fluorine, and sulfate contributing to the pollution of water resources in the region, pollution is more conspicuous at M’Dhilla.

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Section: Methodsmentioning

confidence: 99%

Geochemical Assessment and Mobility of Undesired Elements in the Sludge of the Phosphate Industry of Gafsa-Metlaoui Basin, (Southern Tunisia)

Smida

Souissi²,

Salem

et al. 2021

Applied Sciences

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“…The heavy metal contents in the MSW in the study sites were compared with reported level of heavy metals content in the dumping sites in Japan, India (Esakku et al, 2003;Esakku et al, 2008) and Thailand (Prechthai et al, 2008) as shown in Figure 3. It reveals that the heavy metals content in MSW at the two study dumping sites is less than other dumping sites.…”

Section: Heavy Metal Contentmentioning

confidence: 99%

“…Open dumping of municipal solid waste without source segregation is the usual practice in developing countries like Bangladesh. Co-disposal of household hazardous waste including batteries, paint residues, ash, treated woods and electronic wastes increases the heavy metal content in MSW dumping sites (Para et al, 1999;Esakku et al, 2008;Ahsan et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Assessment of heavy metal contamination from municipal solid waste open dumping sites in Bangladesh

Karim

Kuraoka

Higuchi

et al. 2017

IJEWM

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Co-disposal of the household originated hazardous materials with municipal solid waste (MSW) into the open dumping sites is the usual practice in Bangladesh. In this paper, characterization of heavy metals in MSW in the open dumping sites in Bangladesh is presented. MSW samples were collected from two open dumping sites at Matuail, Dhaka and Khulna and analyzed for total heavy metals content (Cd, Co, Cr, Cu, Mn, Ni, Pb and Zn) and also heavy metal fraction (water extractable, exchangeable and bio-fraction). Moreover, Toxicity Characteristic Leaching Procedure (TCLP) extraction was done to evaluate pollution potential of heavy metals from the dumping sites. Leachate samples were also collected and analyzed for heavy metals content. The results of the analysis showed that the total metals content in MSW at the Matuail dumping site is higher than Khulna dumping site and the metals are predominantly associated with fine soil fraction. The total heavy metals content in MSW in the study sites are less than the total metals content in MSW at the dumping sites reported from Japan, India and Thailand. The study results showed that both sites contain high bio-available fraction of metals, which may easily be entered into a food chain and may cause health hazards. The result of TCLP extraction with the USEPA regulatory levels showed that the dumping sites are non-hazardous in nature in the context of heavy metal pollution. The runoff leachate also contains insignificant concentration of heavy metals. Under the present condition prevailing at the dumping sites, the dissolution of the acid soluble metal and the associated risk of heavy metal contamination are deemed very low. The findings may be useful as a first step in evaluating the heavy metals pollution potential from the open dumping sites in Bangladesh.

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“…The complex biological and physicochemical processes of the huge amount of waste makes the adjacent areas vulnerable caused by the constant release of toxic heavy metal compounds from the decomposed waste, leachate and soil from the waste disposal sites [4]. Besides, most of the ecological and human health problems originate from the release of heavy metal from the leachate and soil in waste landfill, landfill gas holding hazardous air pollutants [5].…”

Section: Introductionmentioning

confidence: 99%

An Investigation on Soil Quality and Heavy Metal Levels in Soil of Rajbandh Waste Disposal Site at Khulna, Bangladesh

Fahmida

Rafizul

2017

IJEE

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A B S T R A C TThe principle objective of this study was to evaluate the soil quality and the level of contamination of soil by heavy metals adapting various developed index in a selected waste disposal site at Rajbandh, Khulna, Bangladesh. To theses endeavor, ten soil samples were collected from the selected locations and then the relevant elements of Al, Fe, Mn, Cr, Cu, Pb, Zn, Ni, Cd, As, Co, Sb, Sc and Hg were measured and monitored using standard method. To estimate the contamination situation of soil, contamination factor (CF), enrichment factor (EF) and geo-accumulation index (Igeo) and potential ecological risk index (PERI) were computed using geological background values. In addition, for assessing soil quality, Pearson's correlation coefficients analysis was also performed. Furthermore, this study revealed that the values of CF and Igeo in soils around the waste disposal area affected from the contamination of heavy metals mostly by Pb, Cd and Sb. In contrast, Pearson's correlation indicated that the sources of metals are almost the same and these heavy metals might be derived from the waste accumulation activity. Dump sites have great potential for energy extraction if the high valued compounds to be extracted.

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Heavy Metal Fractionation and Leachability Studies on Fresh and Partially Decomposed Municipal Solid Waste

Cited by 10 publications

References 9 publications

Geochemical Assessment and Mobility of Undesired Elements in the Sludge of the Phosphate Industry of Gafsa-Metlaoui Basin, (Southern Tunisia)

Geochemical Assessment and Mobility of Undesired Elements in the Sludge of the Phosphate Industry of Gafsa-Metlaoui Basin, (Southern Tunisia)

Assessment of heavy metal contamination from municipal solid waste open dumping sites in Bangladesh

An Investigation on Soil Quality and Heavy Metal Levels in Soil of Rajbandh Waste Disposal Site at Khulna, Bangladesh

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