Method of treating silicon powder-containing drainage water

Details Method of treating silicon powder-containing drainage water Method of treating silicon powder-containing drainage water

2011-08-02

2011-08-02

Hruskoci, Peter A (Department: 1776)

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

C210S716000

Reexamination Certificate

active

07988867

ABSTRACT:
A method of treating silicon powder-containing drainage water, comprising the steps of:including an inorganic flocculant composed of a silica sol-water-soluble metal salt having a molar ratio of silicon to metal of 0.05 to 3.0 into drainage water containing silicon powders to ensure that the metal concentration becomes 15 to 300 mg/L; andadding an organic polymer flocculant.In this method, the coagulation treatment of drainage water containing fine silicon powders can be carried out.

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