Title:
フミン含有排水の処理方法及び処理装置
Document Type and Number:
Japanese Patent JP6861478
Kind Code:
B2
Abstract:
The application provides a technique for highly efficient and low-cost removal of black humic substances in waste water during treatment of waste water containing black humic substances by membrane filtration. A treatment method of waste water containing black humic substances is characterized by comprising the steps of (i) to (iv): (i) an insoluble step of enabling black humic substances in the waste water to be insoluble; (ii) a separation step of separating the insoluble black humic substances in the insoluble step; (ii) a returning step of returning the insoluble black humic substances separated in the separation step back to the insoluble step; and (iv) a membrane filtration step of subjecting the waste water obtained in the separation step after the black humic substances are separated to membrane filtration.
Inventors:
Takanaga Security
Masuhiro Masuda
Masuhiro Masuda
Application Number:
JP2016118447A
Publication Date:
April 21, 2021
Filing Date:
June 15, 2016
Export Citation:
Assignee:
Mitsubishi Chemical Aqua Solutions Co., Ltd.
International Classes:
C02F1/44; C02F1/58; C02F3/10; C02F3/12; C02F9/02; C02F9/04; C02F9/14
Domestic Patent References:
| JP2002066584A | ||||
| JP6254595A | ||||
| JP2002346581A | ||||
| JP2001276844A | ||||
| JP59014795A | ||||
| JP2016013537A |
Attorney, Agent or Firm:
Umeda Shinsuke
Yuko Matsuniya
Hiroshi Morita
Yuko Matsuniya
Hiroshi Morita