Bb. Prasad et Uc. Pandey, Separation and preconcentration of lead from aquatic environment using Microcystis-based biosorbent, ENV TECHNOL, 22(7), 2001, pp. 771-780
The naturally abundant Microcystis surrounded by a slime layer has been imm
obilized as biofilm on a polymer-modified silica gel to obtain a lead-selec
tive robust column packing material which is recyclable for 70 times withou
t any distinct deterioration. The biosorbent has shown quantitative sorptio
n with a preconcentration factor of 83 for trace level lead ion (initial co
ncentration 0.48 mug ml(1)) in multielemental/natural water samples at pH 5
.0 and flow rate 1.0 ml min(1).