Attenuation of pollutants in municipal landfill leachate by passage through clay

Griffin, Robert A.; Shimp, N.F.; Steele, John D.; Ruch, R.R.; White, Wilderich A.; Hughes, G. M.

doi:10.1021/es60123a006

Cited by 75 publications

(39 citation statements)

References 5 publications

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“…The report concluded that their column setup adequately simulated the slow, saturated anaerobic flow of leachate through earth materials outside the landfill area. 3 This experiment, although more elaborate and somewhat different in design from the setup used for this work, was found to produce results in agreement with pollutant attenuation data collected at an actual Chicago area landfill.…”

Section: Discussionsupporting

confidence: 64%

Determination of the Leaching Dynamics of Metals from Municipal Solid Waste Incinerator Fly Ash Using a Column Test

Chichester¹,

Landsberger

1996

Journal of the Air & Waste Management Association

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The objective of this work was to study the dynamic leaching behavior of thirty-three elements in municipal solid waste incinerator fly ash using a column test employing double deionized water. Nearly all of the elements initially present in the leachate were found to leach quickly and then decrease to near constant concentrations after five pore volumes of water passed through the column. Of the eight elements subject to toxicity characteristic leaching procedure (TCLP) investigations, all except lead were found in concentrations below regulatory limits. After three pore volumes of water passed through the column, leachate lead concentrations were found to have diminished to TCLP permissible levels. Concerning Resource Conservation and Recovery Act (RCRA) Title D regulations pertaining to permissible landfill leachate production, lead concentrations were still found at levels above allowable limits after as many as 40 pore volumes of leachate production. INTRODUCTIONThe purpose of waste incineration is usually to reduce waste volumes, so that more waste can be disposed of in a finite volume. One effect of this process, however, is the concentration of metals for disposal, usually in a waste site not specifically designed for the unique characteristics of this type of metal-enriched ash. A concern is the potential leaching of metals from ash by water passing through the fill. A comparison of three recent studies that examined the leachate at municipal solid waste (MSW) ash monofills found that in several cases, the concentrations of heavy metals in landfill leachates exceeded the limits set forth by the Environmental Protection Agency toxicity characteristics leaching procedure (TCLP) test used to define hazardous wastes.

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Section: Discussionsupporting

confidence: 64%

Determination of the Leaching Dynamics of Metals from Municipal Solid Waste Incinerator Fly Ash Using a Column Test

Chichester¹,

Landsberger

1996

Journal of the Air & Waste Management Association

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“…As(III), is also strongly pHdependent. It was observed that an increase in sorption of As(III) by kaolinite and montmorillonite occur over a pH range of 3 to 9 (Griffin and Shimp, 1978). The maximum adsorption of As(III) by iron oxide occurred at pH 7.…”

Section: Heavy Metals In Soil Environmentmentioning

confidence: 99%

“…Because of the anionic nature of Cr(VI), its association with soil surfaces is limited to positively charged exchange sites, the number of which decreases with increasing soil pH. Cr(VI) was found to be highly mobile in alkaline soils (Griffin and Shimp, 1978) and can be reduced to Cr(III) under normal soil pH and redox conditions. Soil organic matter has been identified as the electron donor in this reaction (Bartlett and Kimble, 1976).…”

Section: Heavy Metals In Soil Environmentmentioning

confidence: 99%

A physico-chemical analysis of soil and selected fruits in one rehabilitated mined out site in the Sierra Rutile environs for the presence of heavy metals: Lead, Copper, Zinc, Chromium and Arsenic

Egbenda¹,

Thullah²,

Kamara³

2015

Afr. J. Pure Appl. Chem.

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The accumulation of heavy metals in soils especially in mining environments is of increasing concern to researchers in the Agricultural Industry. This is because the metals are biomagnified by plants. Accumulation of heavy and trace metals in plants occur by various sources but soil is considered the major one. Consumption of vegetables and fruits containing heavy metals is one of the main ways in which these elements enter the human body. Once in the body, heavy metals are deposited in bone and fat tissues, overlapping noble minerals and cause an array of diseases. The present study investigated the concentration of heavy metals that is, Cu, Zn, Cr, As and Pb in soil as well as mango (Mangifera indica L.) and cashew (Anacardium occidentale) fruit samples collected from the Mokaba rehabilitated site in the Sierra Rutile environs, to evaluate the possible health risks to human body through food chain transfer. Atomic absorption spectrophotometry was used to estimate the levels of these metals in the fruits and soil. Results showed that the concentrations of Pb and Cu in both soil and fruits are higher than the World health average values. However, Zn and Cr were found to be below the World health average values, whereas As was not detected. Translocation factors (TF) from soil to fruits were calculated from the data on levels of metals in both soil and fruits. The sampled plants showed high translocation factor values (TF > 1in almost all cases) implying that the plants could be labeled as accumulators of pollution. Pearson's product moment correlation showed a very strong relationship between soil and fruits. It can be concluded that the crops/plants grown in the rehabilitated lands in the Sierra Rutile environs absorb significant levels of some heavy metals from the polluted soil.

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“…The absence of high lead concentrations at locations where arsenic concentrations are high might be explained by greater sorption of lead relative to arsenic or the higher solubility of arsenic relative to lead. Fuller (1978) and Griffin and Shrimp (1978) indicate that lead is one of the least mobile trace elements in soil leachates, particularly in relation to arsenic. also run twice in the laboratory gave values of <1 Ug/L and <1 )ig/L.…”

Section: Water Quality Ground Watermentioning

confidence: 99%

Ground-water and soil contamination near two pesticide-burial sites in Minnesota

Stark¹,

Strudell²,

Bloomgren³

et al. 1987

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Attenuation of pollutants in municipal landfill leachate by passage through clay

Cited by 75 publications

References 5 publications

Determination of the Leaching Dynamics of Metals from Municipal Solid Waste Incinerator Fly Ash Using a Column Test

Determination of the Leaching Dynamics of Metals from Municipal Solid Waste Incinerator Fly Ash Using a Column Test

A physico-chemical analysis of soil and selected fruits in one rehabilitated mined out site in the Sierra Rutile environs for the presence of heavy metals: Lead, Copper, Zinc, Chromium and Arsenic

Ground-water and soil contamination near two pesticide-burial sites in Minnesota

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