Enhancement of microbial PCB dechlorination by chlorobenzoates, chlorophenols and chlorobenzenes
نویسندگان
چکیده
منابع مشابه
PCB dechlorination enhancement in Anacostia River sediment microcosms.
In situ treatment of PCB contaminated sediments via microbial dechlorination is a promising alternative to dredging, which may be reserved for only the most contaminated areas. Reductive dechlorination of low levels of weathered PCB mixtures typical of urban environments may occur at slow rates. Here, we report that biostimulation and bioaugmentation enhanced dechlorination of low concentration...
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Anaerobic microbial reductive dechlorination of PCBs is important because it removes the chlorine substituents that block aerobic metabolism and it reduces PCB toxicity. Although this process occurs widely in nature, its extent is often limited to dechlorination of some of the chlorines in the meta positions of biphenyl. In this report we demonstrate the ability to achieve nearly complete meta ...
متن کاملMulti-substrate biodegradation of chlorophenols by defined microbial consortium
In the present study, a defined mixed microbial consortium was investigated for their ability to utilize three different monochlorophenols (MCPs) and 2,4-DCP individually and in the mixture. None of the individual strains were able to utilize 3-CP and 4-CP, but when they were mixed to form defined consortium, they have shown great potential and degradation of high concentration of 3-CP and 4-CP...
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Introduction Persistent chemical contaminants that accumulate in the environment and in food webs result in long-term threats to public health and ecosystem stability. For example, polychlorinated biphenyls (PCBs), widely used in industry between 1929 and 1978, are stable, lipophilic and chemically inert which allows them to adhere to organic particles and persist in the environment. These pers...
متن کاملComparison of reactors for oxygen-sensitive reactions: reductive dechlorination of chlorophenols by vitamin b(12s).
Serum bottles are frequently used for studies of reductive dechlorination by vitamin B(12), but reducing conditions can be maintained only for several days. This time period is inadequate for evaluating the reductive dechlorination of some slow-reacting aromatic compounds. Sealed glass ampoules maintain reducing conditions for many months, but this method has the disadvantage of disallowing sub...
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ژورنال
عنوان ژورنال: FEMS Microbiology Ecology
سال: 2002
ISSN: 0168-6496
DOI: 10.1016/s0168-6496(02)00322-7