Title:
特にシアン化物およびイオウ化合物の除去のための廃水の若返り接触酸化
Document Type and Number:
Japanese Patent JPH09511944
Kind Code:
A
Abstract:
A process for the rejuvenative catalytic oxidation of offensive substances, such as cyanides, sulfides, sulfites, thiosulfates, mercaptans, disulfides, ammonia and mixtures thereof, contained in waste water is provided. The process comprises adding to the waste water a low concentration of a metal compound and then passing the treated waste water along with a source of oxygen over an adsorbent material to catalytically oxidize the offensive substances contained in the waste water. The process reduces the catalytic impact of the loss of metal from the adsorbent material due to leaching and allows the catalyst to be rejuvenated and allows recovery from process upsets in the treating system without unit shutdown and catalyst replacement. An example of the catalytic support is activated carbon and an example of the metal is copper.
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Inventors:
ヤン， ツオング ユアン
Application Number:
JP52695195A
Publication Date:
December 02, 1997
Filing Date:
February 21, 1995
Export Citation:
Assignee:
モービル オイル コーポレーション
International Classes:
C02F1/28; B01J27/25; C02F1/58; C02F1/72; C02F1/74; (IPC1-7): C02F1/74; B01J27/25; C02F1/28; C02F1/58; C02F1/74
Attorney, Agent or Firm:
斉藤 武彦 （外１名）