BIOSORPTION OF 2,4-DICHLOROPHENOL BY LIVE AND CHEMICALLY INACTIVATED ANAEROBIC GRANULES

Equilibrium sorption isotherms and sorption kinetics of 2,4-dichloroph enol (2,4-DCP) on live and chemically inactivated anaerobic granules w ere investigated using batch serum bottle tests. A general metabolic i nhibitor, sodium azide, was used to inactivate the biological activity of the anaerobic biomass. Experimental results showed that the differ ence in the biosorption of live and chemically inactivated anaerobic g ranules were not significant, suggesting that anaerobic biosorption is mainly a physical-chemical process and that metabolically mediated di ffusion in the process is negligible. Copyright (C) 1996 Elsevier Scie nce Ltd