Invention Grant
- Patent Title: Method for promoting denitrification to remove nitrate nitrogen in water by magnetic resins
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Application No.: US16764847Application Date: 2018-04-20
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Publication No.: US11254598B2Publication Date: 2022-02-22
- Inventor: Chendong Shuang , Guang Zhang , Ting Ye , Aimin Li , Liang Tan , Ke Wang
- Applicant: NANJING UNIVERSITY , NANJING UNIVERSITY & YANCHENG ACADEMY OF ENVIRONMENTAL PROTECTION TECHNOLOGY AND ENGINEERING
- Applicant Address: CN Jiangsu; CN Jiangsu
- Assignee: NANJING UNIVERSITY,NANJING UNIVERSITY & YANCHENG ACADEMY OF ENVIRONMENTAL PROTECTION TECHNOLOGY AND ENGINEERING
- Current Assignee: NANJING UNIVERSITY,NANJING UNIVERSITY & YANCHENG ACADEMY OF ENVIRONMENTAL PROTECTION TECHNOLOGY AND ENGINEERING
- Current Assignee Address: CN Jiangsu; CN Jiangsu
- Agency: CBM Patent Consulting, LLC
- Priority: CN201711146955.8 20171117
- International Application: PCT/CN2018/083896 WO 20180420
- International Announcement: WO2019/095629 WO 20190523
- Main IPC: C02F9/00
- IPC: C02F9/00 ; C02F1/42 ; C02F1/48 ; C02F3/30 ; C02F101/16
Abstract:
In view of the current pollution to sewage by nitrate nitrogen, the present invention discloses a method for promoting denitrification to remove nitrate nitrogen in water by magnetic resins. In the method disclosed by the present invention, magnetic anion exchange resins are in contact with and mixed with sewage, and nitrate nitrogen in the sewage is removed quickly and efficiently by both the ion exchange between the magnetic anion exchange resins and the nitrate nitrogen in the sewage and the denitrification enhanced by the magnetic material. Meanwhile, the regeneration and recycle of the magnetic anion exchange resins are realized by the denitrification of microorganisms.
Public/Granted literature
- US20200339459A1 METHOD FOR PROMOTING DENITRIFICATION TO REMOVE NITRATE NITROGEN IN WATER BY MAGNETIC RESINS Public/Granted day:2020-10-29
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