Liquid purification or separation – Processes – Treatment by living organism
Patent
1985-12-19
1987-10-20
Castel, Benoit
Liquid purification or separation
Processes
Treatment by living organism
210632, 210695, 423 10, 435173, 435262, C02F 300, C12N 1300
Patent
active
047012617
ABSTRACT:
Paramagnetic metals are separated from aqueous media containing them in low concentration by first fixing the metals on bacterial yeast or other cells so as to render the cells magnetic, and then recovering the cells by a high gradient magnetic separation technique. The metal and the cells are contacted in the presence of a compound which is converted by the cells into a product which interacts with the metal and causes it to become bound to the cells. The process is particularly useful for removing low concentrations of highly toxic metals, e.g. uranium, from industrial effluents containing them.
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Ellwood Derek C.
Gibbs Dudley F.
Greenhalgh Marilyn E.
Watson James H. P.
Yeo Richard G.
Bio Separation Limited
Castel Benoit
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