发明名称 |
METHOD AND FACILITY FOR PROCESSING WASTE WATER CONTAINING FLUORINE AND SILICON |
摘要 |
An object (first object) of the invention is to provide a waste water treatment technology (pretreatment technology in particular) which makes it possible to recover fluorine at a high recovery rate as highly pure calcium fluoride, without diluting waste water containing fluorine and silicon, i.e. to recover fluorine from high-concentration waste water containing fluorine and silicon. Waste water containing fluorine and silicon is supplied to a pH controlling tank 1 and sodium hydroxide (NaOH) is added thereto, with the result that sodium silicate is precipitated. Thereafter, the waste water is supplied to a solid-liquid separator 2 so that solid-liquid separation of sodium silicate is conducted. |
申请公布号 |
EP2397444(B1) |
申请公布日期 |
2016.04.20 |
申请号 |
EP20100741223 |
申请日期 |
2010.02.09 |
申请人 |
KOBELCO ECO-SOLUTIONS CO., LTD. |
发明人 |
TANIDA, KATSUYOSHI;KINOSHITA, TSUTOMU;CHIFUKU, HIROYUKI;ONODA, SOUSUKE |
分类号 |
C02F1/469;C02F1/52;C02F1/60;C02F1/66;C02F9/02;C02F9/04;C02F101/14;C02F103/34;C02F103/40 |
主分类号 |
C02F1/469 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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