Title:
触媒を使用した廃水処理システム及び方法
Document Type and Number:
Japanese Patent JP6910402
Kind Code:
B2
Abstract:
The present invention provides a wastewater treatment system which comprises a liquid oxidation promoter, a fixed bed oxidation adsorption device, a plurality of catalysts and an aeration oxidation device. The catalysts comprise activated carbon, transition metal and precious metal. The precious metal is bonded to the activated carbon via the transition metal. The aeration oxidation device is connected to the fixed bed oxidation adsorption device. The catalysts, the liquid oxidation promoter, oxidizing gas, and wastewater having a COD concentration higher than a predetermined concentration are fed into the aeration oxidation device, and the COD in the wastewater is oxidized in the presence of the oxidizing gas and the catalysts so that the COD concentration of the wastewater is reduced to the predetermined concentration. The fixed bed oxidation adsorption device comprises a first oxidation adsorption tower for receiving the wastewater containing the predetermined concentration of the COD. The catalysts are fed into the first adsorption oxidation tower so that adsorption and oxidation reactions are performed on the wastewater to further reduce the COD concentration of the wastewater and to recycle the catalysts.
Inventors:
Chen Jian'an
Chen Yibun
Chen Yibun
Application Number:
JP2019172149A
Publication Date:
July 28, 2021
Filing Date:
September 20, 2019
Export Citation:
Assignee:
NAN YU CATALYTIC CO.,LTD.
International Classes:
C02F1/74; B01J23/46; B01J23/656; C02F1/28
Domestic Patent References:
| JP11239796A | ||||
| JP2001252678A | ||||
| JP2009285580A | ||||
| JP2008149232A | ||||
| JP11333455A | ||||
| JP2003010867A |
Attorney, Agent or Firm:
sk patent corporation
Akihiko Okuno
Hiroyuki Ito
Akihiko Okuno
Hiroyuki Ito