Cr and As decrease lindane sorption on river solids

Guo, Zhiyong; Dong, Deming; Xia, Hua; Zhang, Liwen; Zhu, Shijia; Lan, Xinhui; Liang, Dapeng

doi:10.1007/s10311-014-0489-8

Cited by 14 publications

(7 citation statements)

References 20 publications

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“…The isotherms of lindane and p,p'-DDE on the sediments appeared to be highly linear, suggesting that the linear partition could be involved in the sorption. Previous studies showed that the hydrophobic partition was the most important mechanism in the sorption of OCPs by natural solids [12,25]. a The fCM value of SD = (mass of SC / mass of SD) × the fCM value of SC.…”

Section: Sorption Isotherms Of Lindane and Pp'-dde On The Sedimentsmentioning

confidence: 99%

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Addition of Carbonaceous Material to Aquatic Sediments for Sorption of Lindane and p,p’-Dichlorodiphenyldichloroethylene

Guo

Chen

Wang³

et al. 2019

Applied Sciences

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Isomers of hexachlorocyclohexanes (HCHs) and metabolites of dichlorodiphenyltrichloroethanes (DDTs) are still frequently detected worldwide in considerable amounts, even decades after their prohibition. Carbonaceous materials (CMs) have been shown to significantly reduce risks of propagation to humans by binding the hydrophobic organochlorine pesticides (OCPs) present in aquatic sediments. In the present study, black carbons extracted from natural sediments, and artificially produced black carbons, including black carbons by burning rice straw at 450 and 850 °C, and a commercial activated carbon were compared to investigate the factors affecting the sorption of γ-HCH (lindane) and p,p’-dichlorodiphenyldichloroethylene (p,p’-DDE) on CMs. The results indicated that when the proportion of CMs to total organic carbon (ƒCM/ƒOC) was greater than 0.35, CMs played a leading role in the sorption of lindane and p,p’-DDE by the sediments. The sorption contribution rate of CMs could reach up to 64.7%. When the ratio of ƒCM/ƒOC was less than 0.10, CMs played a minor role in the sorption. In addition, the nonlinearity of the sorption isotherms was strengthened with the increasing the proportion of CMs to total organic carbon. Our findings show that ƒCM/ƒOC value is a principal parameter for assessing the sorption capacity of sediments added by CMs for OCPs.

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Section: Sorption Isotherms Of Lindane and Pp'-dde On The Sedimentsmentioning

confidence: 99%

“…Sorption is an important mechanism for the interaction between OCPs and natural solids in aquatic environments [12], and it is closely related to the physicochemical properties of solids. Sediment is one of the common natural solids in aquatic environment that can sorb OCPs.…”

Section: Introductionmentioning

confidence: 99%

Addition of Carbonaceous Material to Aquatic Sediments for Sorption of Lindane and p,p’-Dichlorodiphenyldichloroethylene

Guo

Chen

Wang³

et al. 2019

Applied Sciences

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“…Fate and Transport Guo et al (2015) studied the sorption of the lindane pesticide by natural biofilms, suspended particles, and river sediments using batch experiments and also measured the effects of Cr(VI) and As(V) on lindane sorption. Results showed that more lindane was adsorbed by biofilms than by suspended particles and sediments on a total mass basis, whereas the sediments had a higher lindane sorption capacity per unit mass organic carbon than suspended particles and biofilms and co-occuring Cr(VI) or…”

Section: Microplasticsmentioning

confidence: 99%

Contaminated Aquatic Sediments

Jaglal¹

2016

Water Environment Research

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“…Results show that more lindane is adsorbed by biofilms than by suspended particles and sediments on a total mass basis, whereas the sediments had a higher lindane sorption capacity per unit mass organic carbon than suspended particles and biofilms. Co-occuring Cr (VI) or As (V) decreased lindane sorption on the biofilms by about 48% [21].…”

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confidence: 97%