Separation and preconcentration of lead from aquatic environment using Microcystis--based biosorbent.
The naturally abundant Microcystis surrounded by a slime layer has been immobilized as biofilm on a polymer-modified silica gel to obtain a lead-selective robust column packing material which is recyclable for 70 times without any distinct deterioration. The biosorbent has shown quantitative sorption with a preconcentration factor of 83 for trace level lead ion (initial concentration 0.48 microg ml(-1)) in multielemental/natural water samples at pH 5.0 and flow rate 1.0 ml min(-1).
Prasad
B B
BB
Department of Chemistry, Banaras Hindu University, Varanasi, India.
Pandey
U C
UC
D000042:Absorption; D018441:Biofilms; D007854:Lead / Q000737:chemistry* / Q000493:pharmacokinetics; D046931:Microcystis; D011108:Polymers; D014873:Water Pollutants / Q000493:pharmacokinetics; D014876:Water Pollution / Q000517:prevention & control*
D011108:Polymers; D014873:Water Pollutants; D007854:Lead