发明名称 |
Förfarande för behandling av processvatten |
摘要 |
A method of treating process water containing metal ions in connection with bleaching pulp of ligno-cellulose-containing material. The process water is brought into contact with an alkaline liquid, which preferably also contains sulphide, whereby metal ions precipitate in the form of difficultly soluble metal compounds. The precipitated metal compounds thereafter are separated from the process water. |
申请公布号 |
SE9301161(L) |
申请公布日期 |
1994.10.08 |
申请号 |
SE19930001161 |
申请日期 |
1993.04.07 |
申请人 |
SUNDS DEFIBRATOR IND AB |
发明人 |
GERMGAARD ULF;NORDEN SOLVEIG |
分类号 |
C02F1/64;D21C9/10;D21C11/00;(IPC1-7):D21C11/00 |
主分类号 |
C02F1/64 |
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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