基本信息:
- 专利标题： COMBINED FILTRATION AND FIXATION OF HEAVY METALS
- 专利标题（中）：组合过滤和重金属固定
- 申请号：PCT/US1991009242 申请日：1991-12-11
- 公开(公告)号：WO1992015388A1 公开(公告)日：1992-09-17
- 发明人： ENVIROGUARD, INC. , RIEBER, Roy, S.
- 申请人： ENVIROGUARD, INC.
- 专利权人： ENVIROGUARD, INC.
- 当前专利权人： ENVIROGUARD, INC.
- 优先权： US666,788 19910308
- 主分类号： B01D37/02
- IPC分类号： B01D37/02
摘要：
The present invention describes a filter medium and a method of filtering metals from liquids, such as waste water, in which the metals are filtered from the liquids and are chemically fixed in the resulting filter cake in a nonhazardous and nontoxic form so that they may be disposed of in nonhazardous landfills. When all or a portion of the metals are dissolved, they are first precipitated and then filtered and chemically fixed.
IPC结构图谱:
| B | 作业；运输 |
| --B01 | 一般的物理或化学的方法或装置 |
| ----B01D | 分离 |
| ------B01D37/00 | 过滤方法 |
| --------B01D37/02 | .过滤元件或过滤材料预涂助滤剂；在被过滤液体中加添滤器添加剂 |