Title:
【発明の名称】水からのシアニドの除去
Document Type and Number:
Japanese Patent JPH06510477
Kind Code:
A
Abstract:
Cyanide is removed from a cyanide-containing waste water by passing the water through an adsorbent porous solid substrate which has been treated with a water insoluble metal compound, preferably copper sulfide (CuS), that facilitates adsorption of the cyanide, a preferred adsorbent substrate is activated carbon. An oxidizing agent is supplied to the adsorbent to oxidize the adsorbed cyanide, the preferred oxidizing agent is a source of oxygen such as air. Ammonia is passed over the bed along with the waste water to enhance the longevity of the adsorbent.
Inventors:
Yang, Tseong Yuan
Application Number:
JP50540693A
Publication Date:
November 24, 1994
Filing Date:
September 01, 1992
Export Citation:
Assignee:
MOBIL OIL CORPORATION
International Classes:
C02F1/28; C02F1/72; C02F9/00; (IPC1-7): C02F1/28; C02F1/72
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)