The dechlorination of cyclodiene pesticides by methanogenic granular sludge

Baczyński, Tomasz; Grotenhuis, J.T.C.; Knipscheer, Petronella

doi:10.1016/j.chemosphere.2003.11.029

Cited by 18 publications

(5 citation statements)

References 16 publications

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“…A hydrodechlorination decomposition route has also been confirmed to occur by anaerobic digestion of DP in sewage sludge . Dechlorination by microbes under anaerobic conditions has also been observed for other chlorinated hydrocarbons such as dieldrin, endrin, aldrin, isodrin, heptachlor, mirex, toxaphene, lindane, and DDT. − Identification of the dechlorinated species will be vital to studying, monitoring, and understanding DP’s environmental fate.…”

Section: Introductionmentioning

confidence: 93%

Dechlorinated Analogues of Dechlorane Plus

Brazeau¹,

Pena-Abaurrea

Shen

et al. 2018

Environ. Sci. Technol.

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Degradation products of the chlorinated additive flame retardant Dechlorane Plus (DP) have been discovered globally. However, the identity of many of these species remains unknown due to a lack of available analytical standards, hindering the ability to quantitatively measure the amounts of these compounds in the environment. In the present study, synthetic routes to possible dechlorinated DP derivatives were investigated in an effort to identify the environmentally significant degradation products. The methano-bridge chlorines of anti- and syn-DP were selectively replaced by hydrogen atoms to give six new hydrodechlorinated DP analogues. The identity and absolute configuration of all of these compounds were confirmed by GC-MS, NMR spectroscopy, and X-ray diffraction studies. These compounds were observed in sediment samples from streams and rivers in relatively rural areas of Ontario and are thus environmentally relevant.

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Section: Introductionmentioning

confidence: 93%

Dechlorinated Analogues of Dechlorane Plus

Brazeau¹,

Pena-Abaurrea

Shen

et al. 2018

Environ. Sci. Technol.

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“…However, the anaerobic biodegradation of insecticides has received little research too far. Cyclodiene pesticides (aldrin, isodrin, dieldrin, and endrin) were dechlorinated by methanogenic granular sludge with removal efficiencies of more than 60% at starting concentrations in the range of 7-9 mg/L [156].…”

Section: Bioreactors In Pesticide Removalmentioning

confidence: 99%

Biological treatment solutions using bioreactors for environmental contaminants from industrial waste water

Chandran,

Suresh,

Balasubramain

et al. 2023

J.Umm Al-Qura Univ. Appll. Sci.

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Human needs have led to the development of various products which are produced in the industries. These industries in turn have become a source of various environmental concerns. As industries release regulated and unregulated contaminants into the water bodies, it has become a serious concern for all living organisms. Various emerging contaminates from industries like pesticides, pharmaceuticals drugs like hormones, antibiotics, dyes, etc., along with byproducts and new complexes contaminate the water bodies. Numerous traditional approaches have been utilized for the treatment of these pollutants; however, these technologies are not efficient in most cases as the contaminants are mixed with complex structures or as new substances. Advanced technologies such as bioreactor techniques, advanced oxidation processes, and so on have been used for the treatment of industrial wastewater and have served as an alternative way for wastewater treatment. Overall, biological treatment techniques based on bioreactors provide a long-term and ecologically useful solution to industrial wastewater contamination. They play an important role in saving water resources and encouraging a greener sustainable future for mankind. The current review outlines the industrial effluents that are released into water bodies, contaminating them, as well as the numerous traditional and novel treatment procedures used for industrial wastewater treatment. Graphical abstract

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“…However, microbial consortium is not always efficient, probably because of the antagonism. A microbial consortium can transform 88% of dieldrin (9 mg⋅L –1 ) within 3 months, and 70% of aldrin (7 mg⋅L –1 ) within 160 days ( Baczynski et al, 2004 ). A mixed indigenous microorganism containing Acidaminobacter , Clostridium , and an uncultured bacterial group can degrade low concentrations of dieldrin (from 0.5 to 10 μg⋅mL –1 ) ( Chiu et al, 2005 ).…”

Section: Degradation Of Aldrin and Dieldrinmentioning

confidence: 99%

Microbial Degradation of Aldrin and Dieldrin: Mechanisms and Biochemical Pathways

Pang

Lin

et al. 2022

Front. Microbiol.

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As members of the organochlorine group of insecticides, aldrin and dieldrin are effective at protecting agriculture from insect pests. However, because of excessive use and a long half-life, they have contributed to the major pollution of the water/soil environments. Aldrin and dieldrin have been reported to be highly toxic to humans and other non-target organisms, and so their use has gradually been banned worldwide. Various methods have been tried to remove them from the environment, including xenon lamps, combustion, ion conversion, and microbial degradation. Microbial degradation is considered the most promising treatment method because of its advantages of economy, environmental protection, and convenience. To date, a few aldrin/dieldrin-degrading microorganisms have been isolated and identified, including Pseudomonas fluorescens, Trichoderma viride, Pleurotus ostreatus, Mucor racemosus, Burkholderia sp., Cupriavidus sp., Pseudonocardia sp., and a community of anaerobic microorganisms. Many aldrin/dieldrin resistance genes have been identified from insects and microorganisms, such as Rdl, bph, HCo-LGC-38, S2-RDLA302S, CSRDL1A, CSRDL2S, HaRdl-1, and HaRdl-2. Aldrin degradation includes three pathways: the oxidation pathway, the reduction pathway, and the hydroxylation pathway, with dieldrin as a major metabolite. Degradation of dieldrin includes four pathways: oxidation, reduction, hydroxylation, and hydrolysis, with 9-hydroxydieldrin and dihydroxydieldrin as major products. Many studies have investigated the toxicity and degradation of aldrin/dieldrin. However, few reviews have focused on the microbial degradation and biochemical mechanisms of aldrin/dieldrin. In this review paper, the microbial degradation and degradation mechanisms of aldrin/dieldrin are summarized in order to provide a theoretical and practical basis for the bioremediation of aldrin/dieldrin-polluted environment.

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The dechlorination of cyclodiene pesticides by methanogenic granular sludge

Cited by 18 publications

References 16 publications

Dechlorinated Analogues of Dechlorane Plus

Dechlorinated Analogues of Dechlorane Plus

Biological treatment solutions using bioreactors for environmental contaminants from industrial waste water

Microbial Degradation of Aldrin and Dieldrin: Mechanisms and Biochemical Pathways

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