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Stabilisation of calcium arsenate, calcium arsenite and ferric arsenate by calcination in air.

Abstract

A flowsheet for removing arsenic from waste water with calcium hydroxide was proposed. This was based on the experimental results: additions of excess calcium hydroxide to waste water reduced arsenic levels to less than 10 mg/l; calcium arsenate and arsenite formed very insoluble Ca3(AsO4)2 by calcining in air above 700 degrees C.<br />A flowsheet for removing arsenic from waste water with calcium hydroxide was proposed. This was based on the experimental results: additions of excess calcium hydroxide to waste water reduced arsenic levels to less than 10 mg/l; calcium arsenate and arsenite formed very insoluble Ca3(AsO4)2 by calcining in air above 700 degrees C.

Details

Database :
OAIster
Notes :
Nishimura T., Tozawa K.
Publication Type :
Electronic Resource
Accession number :
edsoai.on1309145189
Document Type :
Electronic Resource