| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an insolubilizing agent for fluorine highly effective for reducing eluted fluorine in waste water treatment, sludge treatment and waste treatment, etc., in various industrial fields. Ž<P>SOLUTION: By using grid or lime mud containing calcium carbonate, calcium hydroxide, sodium carbonate and calcium phosphate prepared in a causticizing process in existing kraft pulp manufacture respectively independently or by mixing them, the insolubilizing agent for fluorine, which is mixed for use in drainage or moisture-containing waste, is obtained. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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