发明名称 |
Process for the chemical fixation of a liquid aqueous sludge making use of a pozzuolanic reaction. |
摘要 |
<p>A liquid aqueous sludge is transferred into a cylindrical-conical tank and agitated by blowing in air through a downwardly extending tube. A closed circulation of sludge is established between this main tank and a reagent tank by means of a recycling pump. The reagent tank overflows into the main tank. Chalk is added to the reagent tank and a pozzolanic material is added to the main tank. When the mixture of dilute sludge, chalk and possolanic material is homogeneous, it is transferred to a filter press by means of a further pump. The filter cake is collected for final storage or discharged to set slowly.</p> |
申请公布号 |
EP0384846(B1) |
申请公布日期 |
1994.09.28 |
申请号 |
EP19900400503 |
申请日期 |
1990.02.23 |
申请人 |
AGENCE DE L'ENVIRONNEMENT ET DE LA MAITRISE DE L'ENERGIE |
发明人 |
COLIN, FRANCOIS |
分类号 |
B09B3/00;C02F11/00;C04B28/18;(IPC1-7):C02F11/00;C04B40/00 |
主分类号 |
B09B3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|