| 发明名称 |
Improved process for water purification. |
| 摘要 |
<p>The addition of a trivalent iron compound to the sewage to be treated upstream of the oxidizing step and of an aluminium polymer compound to the active sludge being recycled to the same oxidizing step causes beneficial effects to take place on the simultaneous removal of phosphorus and nitrogen.</p> |
| 申请公布号 |
EP0497419(A1) |
申请公布日期 |
1992.08.05 |
| 申请号 |
EP19920200217 |
申请日期 |
1992.01.27 |
| 申请人 |
CAFFARO S.P.A. SOCIETA PER L'INDUSTRIA CHIMICA ED ELETTROCHIMICA |
发明人 |
D'ELIA MAURO;ISOLATI, ANTONIO |
| 分类号 |
C02F1/52;C02F3/12 |
主分类号 |
C02F1/52 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
