, Volume 11, Issue 12, pp 859-863

Development of microbial biofilms on various surfaces for the treatment of heavy metal containing effluents

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Ground glass and roughened polystyrene model stream beds supported mixed microbial biofilms capable of removing Cu , Cd and Pb from running waste waters. Metal uptake by these biofilms was compared to that of similar free-living, mixed microbial populations exposed to different metal concentrations and combinations. Metal uptake by the biofilms was on average 17 times better than that by the free-living cultures.