|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||210/205; 210/209; 210/284; 210/665; 210/721; 210/911|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 401|
Arsenic is removed from water and other aqueous feeds by (1) treating the feed with a compound containing cerium in the +4 oxidation state, preferably cerium dioxide, to oxidize arsenic in the +3 oxidation state to arsenic in the +5 oxidation state and (2) removing the arsenic in the +5 oxidation state from the aqueous phase, normally by contacting the treated feed with alumina or other precipitating agent containing cations in the +3 oxidation state.
1. A device, comprising: an inlet to receive an arsenic-containing aqueous feed;an outlet to discharge an arsenic-depleted treated aqueous feed; andat least one of a filter and cartridge positioned so that the arsenic-containing aqueous feed passes from the inlet and through the at least one of a filter and cartridge to produce the arsenic-depleted treated aqueous feed for discharge through the outlet, wherein the at least one of a filter and cartridge comprises a cerium (IV) oxide to react with arsenic in the arsenic-containing aqueous feed and a cerium...