Assessment of groundwater contamination in the vicinity of a municipal solid waste landfill (Zagreb, Croatia)

Ćosović, Božena; Ahel, Marijan; Andreis, Svjetlana; Toncic, Zdenka

doi:10.1016/s0273-1223(98)00233-9

Cited by 28 publications

(2 citation statements)

References 3 publications

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“…Most developed countries such as US, Germany (and EU), and Australia did not have standards for COD for source water quality. However, compared with available standards 54 for countries like Japan (5 mg/l limit) and Taiwan (25 mg/l limit), the values at Ampar Tenang are quite alarming. The GC-MS results of organic analysis of river water, ground water and leachate are given in Table 5.…”

Section: Assessment Of Organic Pollutantsmentioning

confidence: 85%

Assessment of pollutants migration at Ampar Tenang landfill site, Selangor, Malaysia

Yusoff¹,

Alias²,

Yusof³

et al. 2013

ScienceAsia

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Landfill leachate constitutes a potential risk of severe environmental contamination due to release of a variety of pollutants leaking from the contention system. Hence a study of contaminants transport is of interest for their appropriate management. Field and laboratory studies were undertaken to determine the likely concentrations of potential contaminants from landfill leachate to the underlying groundwater, leachate, and surface water at Ampar Tenang landfill, Selangor, Malaysia. The results clearly indicate that materials are poorly contained and are entering the wider environment. Hence full characterization of the dump contents and the integrity of the site are warranted in order to evaluate the scope of the problem and to identify suitable remediation options.

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Section: Assessment Of Organic Pollutantsmentioning

confidence: 85%

Assessment of pollutants migration at Ampar Tenang landfill site, Selangor, Malaysia

Yusoff¹,

Alias²,

Yusof³

et al. 2013

ScienceAsia

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“…Human activities can also contribute to the release of iron and manganese into the environment as these metals are commonly used in industry, agriculture or landfilling activities (Ferraz et al 1988;Ruijten et al 1994;Mikac et al 1998;WHO 2003). Further, hydrocarbon spills also contribute to the mobilisation of iron and manganese in waters as the degradation of the organic compounds favours the redox reactions that cause their mobilisation (Tucillo et al 1999;Berbenni et al 2000;Atekwana et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Mobilisation processes responsible for iron and manganese contamination of groundwater in Central Adriatic Italy

Palmucci

Rusi

Curzio

2016

Environ Sci Pollut Res

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Iron and manganese are two of the most common contaminants that exceed the threshold imposed by international and national legislation. When these contamination occurs in groundwater, the use of the water resource is forbidden for any purposes. Several studies investigated these two metals in groundwater, but research focused in the Central Adriatic area are still lacking. Thus, the objective of this study is to identify the origin of Fe and Mn contamination in groundwater and the hydrogeochemical processes that can enrich aquifers with these metals. This work is based on hydrogeochemical and multivariate statistical analysis of analytical results undertaken on soils and groundwater. Fe and Mn contamination are widespread in the alluvial aquifers, and their distribution is regulated by local conditions (i.e. long residence time, presence of peat or organic-rich fine sediments or anthropic pollution) that control redox processes in the aquifers and favour the mobilisation of these two metals in groundwater. The concentration of iron and manganese identified within soil indicates that the latter are a concrete source of the two metals. Anthropic impact on Fe and Mn contamination of groundwater is not related to agricultural activities, but on the contrary, the contribution of hydrocarbons (e.g. spills) is evident.

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Kinetics of biochemically driven metal precipitation in synthetic landfill leachate

Samaranayake¹,

Singhal

Lewis

et al. 2002

Remediation Journal

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INTRODUCTIONOne of the most common groups of contaminants in landfill leachate is heavy metals such as mercury (Hg), chromium (Cr), nickel (Ni), zinc (Zn), copper (Cu), cadmium (Cd), lead (Pb), and iron (Fe). Temporal variations of heavy metal characteristics of typical leachate have been analyzed in several investigations (Ludvigsen et al., 1998;Syed & Walter, 1994;Christensen et al., 1994). Typical concentrations in municipal landfill leachate include (Cd 2 to 20 µg/l, Ni 100 to 400 µg/l, Zn 500 to 2,000 µg/l, Cu 20 to 100 µg/l, Pb 50 to 200 µg/l, and Fe 10 to 500 mg/l, (Christensen & Jensen, 1999;Ludvigsen et al., 1998). However, concentrations of heavy metals may vary depending on the differences in waste composition and landfill technology (Ehrig, 1983).Heavy metals can be removed in situ by co-precipitation with the end product of bacterial metabolism (Gadd & White, 1993;White et al., 1988). If sufficient amounts of electron acceptors are available, the microorganism can use organic material in the leachate to produce sulphide and carbonates. Metals then react chemically with these compounds, producing precipitates, which are often too stable to dissolve once formed. Several researchers have investigated the effect of sulphate-reducing bacteria (SRB) to remove heavy metals as a sulphide precipitate (Gundry et al., 1989;Dovark et al., 1992;Harada et al., 1994;Bayoumy et al., 1999 Kinetics of Biochemically Driven Metal Precipitation in Synthetic Landfill LeachateThe research described in this article examines the effect of organic carbon and sulphate concentration on SRB and methanogen activity, which mediate metal precipitation.an up-flow anaerobic fixed film reactor is reported as Cu>Zn>Ni>Pb (Harada et al., 1994). Sulphate removal rates in these studies were 0.14 to 4.23 mg/l/day/g of media. Gundry et al. (1989) found that SRB removed 96 to 99 percent of nickel in an anaerobic filter. Dovark et al. (1992) found that Fe, Zn, Mn, and Cd concentrations were lowered by more than 95 percent when these metals were precipitated as insoluble sulphide along with the hydrogen sulphide produced by SRB. Bayoumy et al. (1999) investigated the relationship between metal level and total organic carbon (TOC).This study found that the TOC removal rate in an anaerobic up-flow reactor including SRB was 50 percent. But when the metal loading was increased, the TOC removal rate was reduced. Metal precipitation may also occur as a carbonate compound and is mediated by methanogenic bacteria (Rittmann & VanBriesen, 1996).These studies provide broadbased information on the chemical processes of metal precipitation under equilibrium conditions. However, no studies have specifically described the influence of active microbial metabolism on the fate, kinetic behavior, and reaction pathways of heavy metals in landfill leachates.The research described in this article examines the effect of organic carbon and sulphate concentration on SRB and methanogen activity, which mediate metal precipitation. Microbial activity was stimulated usin...

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Assessment of groundwater contamination in the vicinity of a municipal solid waste landfill (Zagreb, Croatia)

Cited by 28 publications

References 3 publications

Assessment of pollutants migration at Ampar Tenang landfill site, Selangor, Malaysia

Assessment of pollutants migration at Ampar Tenang landfill site, Selangor, Malaysia

Mobilisation processes responsible for iron and manganese contamination of groundwater in Central Adriatic Italy

Kinetics of biochemically driven metal precipitation in synthetic landfill leachate

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