Results 171 to 180 of about 11,073 (221)
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Pentachlorophenol dechlorination by an acidogenic sludge
Water Research, 2008This study reports the feasibility of removing pentachlorophenol (PCP) by an acidogenic process in batch reactors. When the acidogenic sludge was first acclimated with 2,4,6-trichlorophenol (2,4,6-TCP) and developed 2,4,6-TCP dechlorinating activity, PCP could be ortho-dechlorinated to 3,4,5,-trichlorophenol (3,4,5-TCP) via 2,3,4,5-tetrachlorophenol as
Mun, C.H., He, J., Ng, W.J.
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Reductive dechlorination of chlorobiphenylols by rats
Experientia, 1977Dechlorinated products were isolated from the urine of rats that were administered chlorobiphenylols, the primary hydroxylated metabolites of PCB in mammals. The mechanism of chlorine loss from chlorobiphenylols is different from the mechanism of dechlorination via arene oxides whereby concomitant hydroxylation is always observed.
M T, Tulp, W A, Bruggeman, O, Hutzinger
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Opflow, 2004
This article discusses how utilities are struggling to adapt to new regulations that require the neutralization of chlorine at the time of discharge. Both the US Environmental Protection Agency's Clean Water Act standards and the Canadian Environmental Protection Act guidelines state that water to be discharged into both freshwater and marine waters ...
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This article discusses how utilities are struggling to adapt to new regulations that require the neutralization of chlorine at the time of discharge. Both the US Environmental Protection Agency's Clean Water Act standards and the Canadian Environmental Protection Act guidelines state that water to be discharged into both freshwater and marine waters ...
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Microbial reductive dechlorination of PCBs
Biodegradation, 1993Reductive dechlorination is an advantageous process to microorganisms under anaerobic conditions because it is an electron sink, thereby allowing reoxidation of metabolic intermediates. In some organisms this has been demonstrated to support growth.
J M, Tiedje +4 more
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Slowly Dechlorinated Organic Chloramines
Science, 1982Dechlorination of some organic chloramines with aqueous sulfite solutions does not take place instantaneously as previously assumed. Field dechlorination times on the order of hours for some compounds that are found in chlorinated effluents appear likely on the basis of laboratory studies.
W D, Stanbro, M J, Lenkevich
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Dechlorinated Analogues of Dechlorane Plus
Environmental Science & Technology, 2018Degradation 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.
Allison L. Brazeau +7 more
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Dechlorination of DDT in Frozen Blood
Science, 1967Dechlorination of a commercial mixture of o , p ′-DDT and p , p ′-DDT to p , p ′-DDD and p , p ′-DDE occurs in avian blood stored at -20°C ...
D J, Ecobichon, P W, Saschenbrecker
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Dechlorinative Pyrazinylation of Glycine Derivatives
Organic LettersAmino acids and pyrazines both play crucial roles in drug design. Here, we present a visible-light-driven, redox-neutral α-C(sp3)-H pyrazinylation of glycine derivatives with chloropyrazines, enabling the efficient synthesis of α-pyrazinyl glycine derivatives with valuable biological and pharmaceutical potential.
Peiqin Zhang +5 more
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The Ecology of an Anaerobic Dechlorinating Consortium
1988The mechanisms used by anaerobic bacterial communities to degrade organic molecules are of interest not only to increase our understanding of biogeochemical cycling, but also to explore the potential of microorganisms to degrade xenobiotic molecules in anaerobic environments (12).
J M, Tiedje, T O, Stevens
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Journal of Organometallic Chemistry, 1992
Abstract Polychlorobiphenyls are completely dechlorinated to biphenyl by a polymethylhydrosiloxane-alkali metal system at ambient conditions. Dechlorination proceeded via the formation of a polychlorobiphenyl radical anion, which cleaved with a regioselectivity similar to that normally observed in nucleophilic substitution of polyhaloarenes.
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Abstract Polychlorobiphenyls are completely dechlorinated to biphenyl by a polymethylhydrosiloxane-alkali metal system at ambient conditions. Dechlorination proceeded via the formation of a polychlorobiphenyl radical anion, which cleaved with a regioselectivity similar to that normally observed in nucleophilic substitution of polyhaloarenes.
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