Assessment of heavy metal species in decomposed municipal solid waste

Esakku, S.; Selvam, Ammaiyappan; Joseph, Kurian; Palanivelu, K.

doi:10.3184/095422905782774883

Cited by 64 publications

(38 citation statements)

References 21 publications

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“…Unlike control soil sample that has only Pb, Cu and Zn concentrations as 0.003, 0.125, 0, 0 and 0.063 mg/kg respectively (Amusan et al, 2005;Esakku et al, 2003). Only Lead concentration recorded in the contaminated soil (wet, dry and amended) exceeded the permissible limit of Federal Ministry of Environment (FMEnv) and World Health Organization (WHO) while Zinc, Chromiun, Copper and Cadmium were within the limits.…”

Section: Heavy Metalsmentioning

confidence: 84%

Effects of automobile battery wastes on physicochemical properties of soil in Benin City, Edo State

Orjiakor¹,

Atuanya²

2015

Glo Jnl Pure Appl Sci

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Difference in soil qualities has been noticeable in many soils due to anthropogenic sources, especially of automobile battery wastes. This study examines the effects of automobile battery wastes on the physicochemical properties of the soil. Soil samples for this study were collected in triplicates from three battery chargers' workshops: Adolor, Edaiken and Uwelu in Benin City, Edo State at 0-15cm depth, in the months of August, September and October. The soil physicochemical parameters analyzed indicate variations of values in the contaminated soil over uncontaminated soil (control). Among the parameters examined, conductivity was significantly (P<0.01) higher in the contaminated soil (59.3-184mho/cm) than in the uncontaminated soil. Notably, a more acidic pH value of 3.7-4.5 was also recorded beyond standard limits of 6.5~8.5. Meanwhile phosphorus was relatively high (1.95-3.35) and nitrogen (0.08-0.15) was low as against the control value of 2.71 and 0.18 respectively. Heavy metals such as Lead (Pb), Zinc (Zn), Cadmium (Cd), Chromium (Cr) and Copper (Cu) were present in different concentrations in contaminated soil sample which ranges from far above acceptable standard limit between (0.288-0.875, 0.757-1.342, 0.108-0.279, 0.718-1.062 and 0.272-0.518 mg/kg) compared to their values in the control soil sample having 0.003, 0.125, 0, 0 and 0.063 mg/kg respectively. Battery wastes were found to be significant sources of Cadmium and Chromium, as none of both was detected in the control soil sample. The daily activities of auto-mechanic battery workshops have negative impacts on soil physicochemical properties. Note, the soil in mechanic battery workshops needs urgent cleanup to minimize contamination of ecological materials and public health implication. This work will prove valuable in providing baseline information for further soil quality monitoring studies in study area

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Section: Heavy Metalsmentioning

confidence: 84%

Effects of automobile battery wastes on physicochemical properties of soil in Benin City, Edo State

Orjiakor¹,

Atuanya²

2015

Glo Jnl Pure Appl Sci

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“…The conventional method developed by Tessier, et al, (1979) was followed for the sequential extraction. The residual and total metal contents were determined in aqua regia digest (Esakku, et al, 2005;Shrivastava and Banerjee, 1998). The residual fractions of the sequential extracted samples and the total metal content in fresh samples were extracted with aqua regia using a behrotest digester block with a TRS 200 microprocessor controller.…”

Section: Methodsmentioning

confidence: 99%

Speciation of heavy metals in electroplating industry sludge and wastewater residue using inductively coupled plasma

Venkateswaran

Vellaichamy

Palanivelu

2007

Int. J. Environ. Sci. Technol.

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ABSTRACT:The speciation of metals in environmental samples is a critical factor in assessing the potential environmental impacts, before their disposal. The distribution and speciation of toxic heavy metals in plating wastewater residues and sludge was investigated for four samples using sequential extraction method. Tessier method was used to fractionate the metal content into exchangeable, acid extractable, reducible and oxidizable fractions. Residual and total metal contents were determined in aqua regia digest. The extracts were analysed for metals using inductively coupled plasma -atomic emission spectrometry. The bioavailable fraction (exchangeable and acid extractable fractions) is comprised less than the other forms. The oxidisable and reducible forms are dominants for all the four samples studied. The major metal constitute in the samples is iron, the wastewater residue contains (12.3 and 7.4 g/Kg respectively on dry basis) and the sludge contains (31.5 and 41.6 g /Kg) respectively. Cr concentration is higher in wastewater residue of second electroplating industry. The descending order of the average total metal contents for these four samples were Fe > Cr > Sn > Zn >Cu > Ni > Mn > Pb > Cd > Ag. Based on the average of absolute values for the four samples the highest bioavailability order of metals is Cr (39 %) in wastewater residues and Zn (32 %) in sludge samples. Metal recovery was good, with < 10 % difference between the total metal recovered through the extractant steps and the total metal determined using aqua regia extract.

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“…Moreover, studies have reported low leaching rates of heavy metals over relatively long periods of time (Esakku, Palanivelu, & Joseph, 2003;Gould et al, 1990;Kjeldsen et al, 2002;Reinhart & Basel Al-Yousfi, 1996;Ross, Harries, Revans, Cross, & NATHANIEL, 2000).…”

Section: Metals Contentmentioning

confidence: 99%

Characterization of Fine Fractions From Landfill Mining: A Review of Previous Investigations

2018

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Several landfill mining (LFM) studies have been carried out in recent years all around the world. From these studies qualitative and quantitative information regarding the composition and characteristics of the different fractions excavated from landfills has been obtained. This information comprises data from various landfill sites around the globe from which useful correlations for future LFM projects can be identified. Of particular interest to this paper is the information regarding the fine fractions, which represent to this day a crucial obstacle in the implementation of LFM and enhanced landfill mining (ELFM). The fine fractions make up a considerable portion of the total amount of waste disposed of in landfills. Depending on the particle size chosen as upper limit to define the fines fraction, the portion of this fraction can be as high as 40-80 wt.% of the total excavated waste. These fractions consist of decomposed organic substances, e.g. humic substances, partly weathered mineral waste, e.g. sand, brick fragments, concrete, but also of fine metal particles, especially non-ferrous metals, and still a significant amount of plastics, paper and other calorific fractions. However, although calorific fractions might be used for energy recovery and inorganic fractions for material (especially metal) recovery, current LFM studies are discarding the fine fraction due to lacking or too expensive processing routes. Therefore, it is of critical interest to LFM and ELFM projects to reduce the particle size down to which the excavated material can be processed. This paper, which was elaborated within the framework of the EU Training Network for Resource Recovery through Enhanced Landfill Mining -NEW-MINE, aims to review the obtained data from different LFM studies from municipal solid waste (MSW) landfills, concerning the fines fraction, in order to identify key aspects to be taken into consideration while designing the processing approach in future LFM and ELFM investigations.

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Assessment of heavy metal species in decomposed municipal solid waste

Cited by 64 publications

References 21 publications

Effects of automobile battery wastes on physicochemical properties of soil in Benin City, Edo State

Effects of automobile battery wastes on physicochemical properties of soil in Benin City, Edo State

Speciation of heavy metals in electroplating industry sludge and wastewater residue using inductively coupled plasma

Characterization of Fine Fractions From Landfill Mining: A Review of Previous Investigations

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