公开(公告)号：US20180265386A1

公开(公告)日：2018-09-20

申请号：US15626126

申请日：2017-06-18

Applicant: NANJING UNIVERSITY

Inventor： JINJU GENG ,  XINGSHENG GAO ,  HONGQIANG REN ,  KE XU ,  YAN ZHANG ,  HUI HUANG

IPC: C02F9/00 ,  B01D15/42 ,  B01D15/30 ,  G01N30/72

CPC classification number: C02F9/00 ,  B01D15/305 ,  B01D15/426 ,  C02F1/325 ,  C02F1/52 ,  C02F1/68 ,  C02F1/72 ,  C02F1/725 ,  C02F2001/007 ,  C02F2101/322 ,  C02F2101/34 ,  C02F2101/38 ,  C02F2103/005 ,  C02F2201/322 ,  C02F2209/00 ,  C02F2303/04 ,  C02F2305/02 ,  G01N30/7233

Abstract: The present invention discloses an advanced oxidation process of degrading nonsteroidal anti-inflammatory drugs in sewage by UV persulfate. The sewage flows to a secondary sedimentation tank by gravity, and sediments are precipitated and separated. Na2S2O8 solution is added therein, and a UV lamp is opened. Effluent result is analyzed after photooxidation. The sewage is transferred into a contact disinfection pool to react with ClO2 before discharging safely. The present invention uses a UV-based advanced oxidation process, which can effectively remove, the nonsteroidal anti-inflammatory drugs in sewage, meets the requirements of sewage discharging, and decreases the environmental risk of nonsteroidal anti-inflammatory drugs. The method has some advantages such as simple equipments, easy operation, reasonable economy, as well as efficient treatment effect and high stability.