The use of bioassays for evaluating the toxicity of sewage sludge and sewage sludge-amended soil

Selivanovskaya, Svetlana; Латыпова, В. З.

doi:10.1007/bf02991073

Cited by 31 publications

(9 citation statements)

References 20 publications

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“…Land utilization of sewage sludge and sludge compost is a common practice in many countries (McGrath et al 1994), even though the results of many studies have suggested that this practice should be strictly regulated (Selivanovskaya and Latypova 2003;Litz et al 2007;Brazauskiene et al 2008). The incorporation of sewage sludge and sludge compost into soils can lead to a dramatic increase in the amount of DOM during the first few weeks following their application (Han and Thompson 1999).…”

Section: Introductionmentioning

confidence: 98%

Comparison of dissolved organic matter from sewage sludge and sludge compost as electron shuttles for enhancing Fe(III) bioreduction

Huang

Cao

et al. 2009

J Soils Sediments

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Purpose Land utilization of sewage sludge and sludge compost is a common practice in many countries. Soils amended with sewage sludge and sludge compost display different physicochemical properties, especially in terms of dissolved organic matter (DOM) composition that affects the electron-donating capacity (EDC) of DOM in soils. The aim of this paper was to compare the EDC of DOM derived from sewage sludge and sludge compost for enhancing Fe(III) bioreduction. It is expected that this research could be helpful for further understanding of soil remediation in the future. Materials and methods Sludge and compost DOM were extracted from sewage sludge and sludge compost, respectively. Fractionation, CHNO/S analysis, Fourier-transform infrared and ultraviolet-visible spectroscopy, and cyclic voltammetry were then used to determine the degree of aromaticity and humification in the samples. To determine if their EDC was altered during composting, samples were reduced by the humic-reducing bacterium, Shewanella cinica D14 T , after which their EDC values were determined. The initial and potential EDC values of the samples were measured using FeCl 3 /Fe(citrate) as an electron acceptor. The insoluble Fe(III) oxide reduction by strain D14 T was mediated by DOM.

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Section: Introductionmentioning

confidence: 98%

Comparison of dissolved organic matter from sewage sludge and sludge compost as electron shuttles for enhancing Fe(III) bioreduction

Huang

Cao

et al. 2009

J Soils Sediments

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“…However, this practice can pose a threat to environment and the major concern arises from the fact that sewage sludge, especially those from the heavily urbanized and industrialized areas, contains a relatively high concentration of heavy metals. Thus application of sewage sludge to agricultural soil may result in elevated concentrations of toxic metals, which may then threaten ground water quality and lead to food chain contamination [2,3].…”

Section: Introductionmentioning

confidence: 99%

Metal sorption on soils as affected by the dissolved organic matter in sewage sludge and the relative calculation of sewage sludge application

Liu

Zhang

et al. 2007

Journal of Hazardous Materials

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To evaluate the influences of sewage sludge-derived organic matters on metal sorption and on the resultant sludge loading estimates, a batch experiment was conducted to compare the sorption of Ni, Cu and Pb in sewage sludge filtrates (1:20 sewage sludge to water) on eight soils and the adsorption of metals in a reference solution which had the same matrix as the sewage sludge filtrate except dissolved organic material (henceforth referred to as reference solution). Metal sorption could be well fitted by linear isotherm and the dissolved organic matter in sludge significantly depressed the sorption (p < 0.01). The main factor controlling sorption of Ni on different soils was dominated by soil cation exchange capacity (CEC) and sorption of Cu and Pb was by soil organic matter (SOM). The parameters obtained from the sorption isotherm equations were then used to estimate sludge loadings into the soils. When the sorption parameters derived from the reference solution were used for calculation, that is the effect of dissolved organic matter was not considered, the calculated safe application rates are approximately 47.8, 51.4, 34.2, 31.3, 21.7, 46.3, 187.1 and 27.6 t-sludge/ha for the Beijing, Jiangxi, Xiamen, Jilin, Guangdong, Wuhan, Gansu and Xinjiang soils, respectively. However, when the sorption parameters derived from the dissolved organo-metallic complexes are used for calculation, the corresponding application rates are reduced to approximately 6.0, 3.4, 1.9, 10.0, 6.3, 3.6, 7.3 and 3.5 t-sludge/ha, respectively. By this study we can get a conclusion that the effect of sewage sludge derived dissolved organic matter on heavy metal sorption and soil properties should be considered in the course of regulating the safe application rates of sewage sludge to soil.

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“…Sewage sludge is commonly used in agriculture as soil conditioner/fertilizer due to easy availability and low costs [41]. But it may also contain substantial amounts of toxic metals such as Zn, Cu, Cr, Ni, Cd, and Pb [42][43][44], which are quite mobile due to the presence of organic matter in sewage sludge [45]. In addition to direct application, municipal sewage sludge disposed of through land �lling is also a potential source of spreading toxic metals to nearby lands [46].…”

Section: Principle Component Analysis (Pca)mentioning

confidence: 99%

Multivariate Analysis of Metal Levels in Paddy Soil, Rice Plants, and Rice Grains: A Case Study from Shakargarh, Pakistan

Tariq

Rashid

2013

Journal of Chemistry

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The present study aims at determining the relationship between trace metal levels in paddy soils, rice plants, and rice grains obtained from these plants. The levels of selected metals (Fe, Co, Ni, Cd, Pb, and Cr) were determined by atomic absorption spectrophotometry in the soil, rice plants, and rice grain samples collected from paddy fields. All the metals were present at enhanced levels in paddy soil. Among the selected metals, Fe, Ni, Cd, and Cr were predominantly associated with oxidizable fraction. The metals such as Cr, Ni, Co, and Fe were significantly positively correlated in soil and plants, but no such correlation was observed in soil-grain matrix evidencing that these metals have a soil-based origin in the plants, but they were not translocated to grains. The Pb content of soil was strongly positively correlated with plants as well as the grains. The principal component analysis and cluster analysis were used to depict the origin of enhanced metal levels in rice plants. Under the given field conditions, different metals possess different translocation behaviours from soil to roots to shoots to grains. There is a dire need to implement the strategies for wise and optimum use of agrochemicals.

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The use of bioassays for evaluating the toxicity of sewage sludge and sewage sludge-amended soil

Cited by 31 publications

References 20 publications

Comparison of dissolved organic matter from sewage sludge and sludge compost as electron shuttles for enhancing Fe(III) bioreduction

Comparison of dissolved organic matter from sewage sludge and sludge compost as electron shuttles for enhancing Fe(III) bioreduction

Metal sorption on soils as affected by the dissolved organic matter in sewage sludge and the relative calculation of sewage sludge application

Multivariate Analysis of Metal Levels in Paddy Soil, Rice Plants, and Rice Grains: A Case Study from Shakargarh, Pakistan

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