发明名称 |
Method of purification of waste water by treatment with zirconium salt |
摘要 |
The present invention relates to a method of purification of waste water from chemical pulping and paper mills comprising coagulation and precipitation of suspended substances and colloidal dispersed particles, precipitation of non-colloidal dissolved, low molecular weight substances in the waste water and formation of water insoluble precipitates or chelates thereof, and further to a method of purification of waste water of any source by the use of zirconium salt.
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申请公布号 |
US3997439(A) |
申请公布日期 |
1976.12.14 |
申请号 |
US19740519866 |
申请日期 |
1974.11.01 |
申请人 |
SHIKOKU PAPER MFG. CO., LTD. |
发明人 |
AYUKAWA, BUICHIRO |
分类号 |
C02F1/52;D21C11/00;(IPC1-7):C02C5/04;C02B1/20 |
主分类号 |
C02F1/52 |
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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