Method of separating a heavy metal ion

Details Method of separating a heavy metal ion Method of separating a heavy metal ion

1989-12-19

1991-02-12

Wyse, Tom

Liquid purification or separation

Processes

Ion exchange or selective sorption

210912, 210913, 210914, B01D 1500, C02F 142

Patent

active

049921800

ABSTRACT:
A method of separating a heavy metal ion from an aqueous solution containing the heavy metal ion, comprising the step of bringing a chitosan derived from a chitosan-producing microorganism into contact with said aqueous solution. The chitosan used, which can be produced by a simple process, has good heavy metal ion adsorptivity; this method can effectively separate heavy metal ion from a solution containing it.

REFERENCES:
patent: 4125708 (1978-11-01), Masri et al.
patent: 4156647 (1979-05-01), Nieuwenhuis
patent: 4285819 (1981-08-01), Yen et al.
patent: 4612247 (1986-09-01), Walsh et al.
patent: 4859594 (1989-08-01), Portier
patent: 4882066 (1989-11-01), Portier

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