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DatoValore
TitleEffect of Coupling Zero-Valent Iron Side Filters on the Performance of Bioreactors Fed with a High Concentration of Perchloroethylene
AbstractThe objectives of this work were first to evaluate the effect of coupling a zero-valent side filter to anaerobic fluidized bed bioreactors (HFBB) versus bioreactors without the zero-valent filter, also called methanogenic fluidized bed bioreactors (MFBB); and second to study the diversity of the microbial community in both types of bioreactors. At the end of operation (in the last 75 d), the HFBB reached a 95% removal of the incoming tetrachloroethylene, whereas the MFBBs without filter achieved a removal of 88%. Genera such as Dehalobacter spp., Desulfurospirillum spp., Desulfitobacterium spp., and Dehalococcoides spp., and Methanosarcina were found at the end of the treatment. Coupling zero-valent filters to bioreactors (HFBB) fed with high tetrachloroethylene concentration improved reactor performance [high tetrachloroethylene removal and reduction of concentrations of vinyl chloride (VC) and dichlorethylene (DCE)]. This performance was consistent with significant higher concentrations of dehalogenating bacteria found in the HFBB.
SourceJournal of environmental engineering (New York, N.Y.) 142 (11)
KeywordsBioremediationCatalyzed reporter deposition fluorescence in situ hybridization (CARD-FISH)Fluidized bed bioreactorPerchloroethylene (PCE)Zero-valent iron (ZVI)
JournalJournal of environmental engineering (New York, N.Y.)
EditorAmerican Society of Civil Engineers, Environmental Engineering Division,, New York, N.Y., Stati Uniti d'America
Year2016
TypeArticolo in rivista
DOI10.1061/(ASCE)EE.1943-7870.0001093
AuthorsBreton-Deval, L.; Rossetti, S.; Ríos-Leal, E.; Matturro, B.; Poggi-Varaldo, H. M.
Text372364 2016 10.1061/ ASCE EE.1943 7870.0001093 Scopus 2 s2.0 84991598802 Bioremediation Catalyzed reporter deposition fluorescence in situ hybridization CARD FISH Fluidized bed bioreactor Perchloroethylene PCE Zero valent iron ZVI Effect of Coupling Zero Valent Iron Side Filters on the Performance of Bioreactors Fed with a High Concentration of Perchloroethylene Breton Deval, L.; Rossetti, S.; Rios Leal, E.; Matturro, B.; Poggi Varaldo, H. M. Centro de Investigacion y de Estudios Avanzados; Istituto di Ricerca sulle Acque, Italy; Centro de Investigacion y de Estudios Avanzados The objectives of this work were first to evaluate the effect of coupling a zero valent side filter to anaerobic fluidized bed bioreactors HFBB versus bioreactors without the zero valent filter, also called methanogenic fluidized bed bioreactors MFBB ; and second to study the diversity of the microbial community in both types of bioreactors. At the end of operation in the last 75 d , the HFBB reached a 95% removal of the incoming tetrachloroethylene, whereas the MFBBs without filter achieved a removal of 88%. Genera such as Dehalobacter spp., Desulfurospirillum spp., Desulfitobacterium spp., and Dehalococcoides spp., and Methanosarcina were found at the end of the treatment. Coupling zero valent filters to bioreactors HFBB fed with high tetrachloroethylene concentration improved reactor performance high tetrachloroethylene removal and reduction of concentrations of vinyl chloride VC and dichlorethylene DCE . This performance was consistent with significant higher concentrations of dehalogenating bacteria found in the HFBB. 142 Published version http //www.scopus.com/record/display.url eid=2 s2.0 84991598802 origin=inward Articolo in rivista American Society of Civil Engineers, Environmental Engineering Division, 0733 9372 Journal of environmental engineering New York, N.Y. Journal of environmental engineering New York, N.Y. J. environ. eng. New York, N.Y. Journal of environmental engineering. New York, N.Y. A.S.C.E. environmental engineering New York, N.Y. ASCE environmental engineering New York, N.Y. ASCE journal of environmental engineering New York, N.Y. simona.rossetti ROSSETTI SIMONA