Water treatment

Details Water treatment Water treatment

1986-10-29

1988-11-08

Hruskoci, Peter

Liquid purification or separation

Processes

Ion exchange or selective sorption

210667, 210725, 210727, 210728, C02F 156

Patent

active

047832657

ABSTRACT:
A method of treating water comprises adding to the water a composition comprising a weighting agent and an electrolyte having a multivalent metal cation.
The resultant floc absorbs suspended solids in the water and gives rise to a dense sludge which is easily removed from the purified supernatant liquor. A composition for use in the method is also disclosed. The composition may be in the form of a slurry or a friable solid (which may be briquetted).

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patent: 4279756 (1981-07-01), Weiss et al.
patent: 4415467 (1983-11-01), Piepho
patent: 4425238 (1984-01-01), Degen et al.
patent: 4450092 (1984-05-01), Huang

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