FIELD: production of chlorine- and aluminium-containing coagulants. SUBSTANCE: method involves dissolution of metal aluminium in natural bischofite. The process is carried out under action of direct current at current density 0.82-4.1 A/dm2, within 2-30 h. EFFECT: improved efficiency of the method.
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Authors
Dates
1997-06-20—Published
1994-05-13—Filed