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Numerous biological, physical and chemical parameters are involved in the retention and removal of bacteria in wastewater treatment systems. Biological parameters, such as biofilms and protozoa grazing activity, are often mentioned but few studies provide a better understanding of their influence. In this study, the effect of bacterivorous protozoa on pathogenic indicator bacteria removal was investigated...
Degradation of 2-chlorobenzoic acid (2-CBA), a model recalcitrant chlorinated organic compound, by pure cultures of Burkholderia cepacia strain DNT with (transformed B. cepacia) and without (untransformed B. cepacia) the bacterial hemoglobin (Vitreoscilla hemoglobin, VHb) gene, vgb, was investigated in parallel membrane bioreactors (MBRs). This was done aseptically to prevent contamination during...
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