Metal recovery

Liquid purification or separation – Processes – Ion exchange or selective sorption

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210688, C02F 128

Patent

active

047894814

ABSTRACT:
A relatively solid, stable biomass reaction product is provided produced from microorganisms having metal uptake properties when contacted by an aqueous solution containing metal cations. The biomass reaction product is produced by treating cells thereof with a caustic solution, whereby the biomass reaction product after drying is characterized in the particulate state of having substantially enhanced uptake of metal cations from aqueous solutions as compared to the metal uptake property of the microorganism before treatment.

REFERENCES:
patent: 4293333 (1981-10-01), Drobot
Beveridge et al., "Sites of Metal Deposition in the Cell Wall of Bacillus subtilis", Journal of Bacteriology, Feb. 1980, vol. 141, No. 2, pp. 876-887.
Remacle et al., "The Removal of Heavy Metals from Industrial Effluents in a Biological Fluidised Bed", Environmental Technology Letters, vol. 4 (1983) pp. 53-58.

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