| 申请日期 | 2026-04-20 | 申请号 | US12632523 |
| 公开（公告）号 | US20100187178A1 | 公开（公告）日 | 2010-07-29 |
| 公开国别 | US | 申请人省市代码 | 全国 |
| 申请人 | John Leslie Burba; Richard Donald Witham; Edward Bayer McNew | ||
| 简介 | Contaminants, including arsenic, are removed from water and other aqueous feeds preferably by (1) treating the feed with a compound containing a rare earth (e.g., cerium in the +4 oxidation state, preferably cerium dioxide), to oxidize contaminants in the +3 oxidation state to arsenic in the +5 oxidation state and (2) removing the contaminants in the +5 oxidation state from the aqueous phase, normally by contacting the treated feed with a rare earth-containing precipitating agent. | ||
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