Sodium Application Enhances DDT Transformation in a Long-Term Contaminated Soil

Kantachote, Duangporn; Singleton, Ian; Naidu, Ravi; McClure, N.; Megharaj, Mallavarapu

doi:10.1023/b:wate.0000022934.70231.1a

Cited by 12 publications

(3 citation statements)

References 24 publications

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“…Soil DDT contamination levels up to 7.5 mg kg À1 have been reported (Kantachote et al, 2004). Although its use in agriculture was banned in China in 1983, unfortunately, it appears that its residues and metabolites DDD (1,1-dichloro-2,2-bis( pchlorophenyl)ethane) and DDE (1,1-dichloro-2,2-bis( p-chlorophenyl) ethylene) are still widely distributed in soils.…”

Section: Introductionmentioning

confidence: 99%

DDT uptake by arbuscular mycorrhizal alfalfa and depletion in soil as influenced by soil application of a non-ionic surfactant

Zhang

Huang

et al. 2008

Environmental Pollution

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Combined colonization of alfalfa roots by an arbuscular mycorrhizal fungus and addition of non-ionic surfactant to the soil promoted root and shoot uptake and soil dissipation of DDT. AbstractA greenhouse pot experiment was conducted to investigate the colonization of alfalfa roots by the arbuscular mycorrhizal (AM) fungus Glomus etunicatum and application of the non-ionic surfactant Triton X-100 on DDT uptake by alfalfa and depletion in soil. Mycorrhizal colonization led to an increase in the accumulation of DDT in roots but a decrease in shoots. The combination of AM inoculation and Triton X-100 application enhanced DDT uptake by both the roots and shoots. Application of Triton X-100 gave much lower residual concentrations of DDT in the bulk soil than in the rhizosphere soil or in the bulk soil without Triton X-100. AM colonization significantly increased bacterial and fungal counts and dehydrogenase activity in the rhizosphere soil. The combined AM inoculation of plants and soil application of surfactant may have potential as a biotechnological approach for the decontamination of soil polluted with DDT.

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Section: Introductionmentioning

confidence: 99%

DDT uptake by arbuscular mycorrhizal alfalfa and depletion in soil as influenced by soil application of a non-ionic surfactant

Zhang

Huang

et al. 2008

Environmental Pollution

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“…DDE transformation requires complex pathways and it can also occur in anaerobic conditions [55][56][57]. The measurements of MFCs performed at 60 days showed a good electrical performance and DDE removal, in particular in the Soil + DDE MFCs.…”

Section: Discussionmentioning

confidence: 95%

Use of microbial fuel cells for soil remediation: A preliminary study on DDE

Borello

Gagliardi

Aimola

et al. 2021

International Journal of Hydrogen Energy

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DDE (2,2-bis (p-chlorophenyl)-1,1-dichloroetylene) is a very persistent and bioaccumulative pesticide and its residues are continuously found in the environment. Among the green remediation strategies for soil recovery, terrestrial Microbial Fuel Cells (MFC) are arousing great interest in scientific community. MFCs transform energy stored in the chemical bonds of organic compounds into electrical energy thanks to exo-electrogen microorganisms naturally occurring in soil, which catalyse oxidation and reduction reactions in the area between two graphite electrodes. This work reports preliminary data on the use of MFCs for promoting soil decontamination from DDE. Several experimental conditions (e.g. addition of compost and open/closed circuit) were applied for assessing how to improve MFC performance in favouring DDE removal. MFCs promoted a significant DDE removal (39%) after 2 months, while at the same time any pesticide decrease was observed in the batch condition. Compost addition stimulated microbial activity and improved MFC performance for a longer time.

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“…7 In addition, Juhasz et al 4 concluded that microbial accessibility to a contaminant might be increased by physical dispersion of the soil matrix. Our previous studies showed that addition of low concentrations of Na + to soil significantly enhanced DDT transformation 8 and that Na + addition affected soil DOC levels and clay dispersion. Given that seaweed is a potential source of Na + , nutrients (eg nitrogen) and DOC, we thought that addition of this material to soil may enhance DDT transformation rates in contaminated soil.…”

Section: Introductionmentioning

confidence: 99%