the order of metal uptake for the dried biomass was found to be
hest at 80 mg l-1 (q=15.471) at 120 min. Metal uptake for As was lowest at 20 mg l-1 (q=1.416) in contact time of 30 min and exhibited peak at 40 mg l-1 (q=8.719) in 120 min. The minimum Co uptake was observed at 20 mg l-1, (q=2.628) in 30
mins whereas the maximum was at 80 mg l-1 (q=7.856) in 120 min.