Immobilised microbial reactor for heavy metal pollution control
by Ligy Philip, Leela lyengar, C. Venkobachar
International Journal of Environment and Pollution (IJEP), Vol. 6, No. 2/3, 1996

Abstract: The copper removal potential of Pseudomonas aeruginosa immobilised on different adsorbent resins has been studied. Duolite S-761 was found to be the most suitable matrix for bacterial immobilisation. Column studies were conducted using virgin as well as bacteria-immobilised resin. The experimental results reveal that resin with immobilised cells as sorbent increased the column capacity by more than 100%. Sorbed copper (II) could be desorbed using citrate buffer, and the bacteria immobilised reactor could be reused for removal of copper(II) with more than 90% efficiency. Further, the immobilised microbes were found to be viable. Hydrochloric acid (0.1 N) was able to desorb almost 100% of the sorbed metal, but the viability of the cells was affected, as expected.

Online publication date: Wed, 16-Sep-2009

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