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000111395 005__ 20190316234026.0
000111395 0247_ $$2doi$$a10.1089/ees.2006.23.874
000111395 022__ $$a1092-8758
000111395 037__ $$aARTICLE
000111395 245__ $$aInterspecies Competitive Effects in Reduction of Organohalides in Connelly Iron Columns
000111395 269__ $$a2006
000111395 260__ $$bMary Ann Liebert$$c2006
000111395 336__ $$aJournal Articles
000111395 520__ $$aInterspecies competitive effects on the degradation of two alkyl halides (1-bromo-2-chloroethane, BCA, and 1,1,2-trichloroethane, 1,1,2-TCA) and three vinyl halides (trichloroethylene, TCE; cis-dichloroethylene, cis-DCE; and trans-dichloroethylene, trans-DCE) were investigated in column experiments using Connelly iron. The presence of vinyl halides as cosolutes diminished the removal efficiencies of all compounds investigated except TCE. The presence of BCA led to a decrease in iron reactivity toward cis-DCE as a result of interspecies competition with the accumulating degradation product ethylene. Although ethylene had an inhibitory effect on some organohalides, it reacted slowly itself, consistent with the notion that its effect stems primarily from competitive sorption to reactive sites rather than from slow regeneration of reactive sites at the particle–water interface. Competitive effects observed in dual-solute experiments could be modeled via Langmuir-Hinshelwood-Hougen-Watson (LHHW) kinetics. The LHHW parameters obtained in dual-solute experiments successfully simulated interspecies competition encountered in a multiple-solute experiment in which all five organohalides were introduced simultaneously. Our results suggest that incorporating interspecies competitive effects into the design of permeable reactive barriers used in treating mixed plumes of organohalides will greatly assist in attaining performance objectives.
000111395 700__ $$0240649$$g173999$$aKohn, T.
000111395 700__ $$aRoberts, A. L.
000111395 773__ $$j23$$tEnvironmental Engineering Science$$q874-885
000111395 8564_ $$uhttps://infoscience.epfl.ch/record/111395/files/Kohn%20and%20Roberts%20EES%202006.pdf$$zn/a$$s326231
000111395 909C0 $$xU11718$$0252156$$pLCE
000111395 909CO $$qGLOBAL_SET$$particle$$ooai:infoscience.tind.io:111395$$pENAC
000111395 917Z8 $$x173999
000111395 917Z8 $$x173999
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000111395 937__ $$aEPFL-ARTICLE-111395
000111395 973__ $$rNON-REVIEWED$$sPUBLISHED$$aOTHER
000111395 980__ $$aARTICLE