| 发明名称 |
Förfarande för rening av avfallsvatten |
| 摘要 |
<p>PCT No. PCT/FI93/00524 Sec. 371 Date Jul. 14, 1995 Sec. 102(e) Date Jul. 14, 1995 PCT Filed Dec. 3, 1993 PCT Pub. No. WO94/13591 PCT Pub. Date Jun. 23, 1994The invention relates to a process for the treatment of waste waters of the forest industry. According to the invention, waste water is pre-treated biologically, whereafter the further treatment is carried out by using Fe(II) salt and hydrogen peroxide.</p> |
| 申请公布号 |
FI925506(A) |
申请公布日期 |
1994.06.05 |
| 申请号 |
FI19920005506 |
申请日期 |
1992.12.04 |
| 申请人 |
KEMIRA OY;OY KESKUSLABORATORIO-CENTRALLABORATORIUMAB |
发明人 |
SAVOLAINEN, MARTTI;SYVAEPURO, TARMO;LAINE, EIJA |
| 分类号 |
C02F1/52;C02F1/72;C02F3/12;(IPC1-7):C02F9/00;B01D21/01;C02F3/00 |
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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