Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Chinese Journal of Environmental Engineering》 2018-09
Add to Favorite Get Latest Update

Control of disinfection by-products and opportunistic pathogens using UV/H_2O_2 and active carbon filtration

ZHAO Shehang;WANG Haibo;HU Chun;SHI Baoyou;SUN Yingjie;School of Environmental and Municipal Engineering,Qingdao University of Technology;Key Laboratory of Drinking Water Science and Technology,Research Center for Eco-Environmental Sciences,Chinese Academof Sciences;Institute of Environmental Research at Greater Bay,Guangzhou University;  
In order to investigate the effects of UV/H_2O_2 and active carbon filtration on control of disinfection by-products(DBPs) and opportunistic pathogens(OPs) in drinking water, different water treatment processes including raw water-chlorination, raw water-active carbon filtration-chlorination, and raw water-UV/H_2O_2-active carbon filtration-chlorination, were studied in this experiment. The dissolved organic carbon(DOC), biodegradable dissolved organic carbon(BDOC), different constituents of organic matters, disinfection by-products, 16 S r RNA of total bacteria, adenosine triphosphate(ATP), and different opportunistic pathogens were detected. The results showed that the DOC concentration and the disinfection by-products including trihalomethanes(THMs) and haloacetic acid(HAAs), such as trichloromethane, dichloroaceticacid, and trichloroaceticacid, could be controlled very well by using UV/H_2O_2 and active carbon filtration, which could remove the fulvic acid and humic acid.UV/H_2O_2 advanced oxidation could inactivate the particle-attached and free living bacteria very well. Moreover,BDOC concentration could be controlled by UV/H_2O_2-active carbon filtration, and the bacteria were hard to regrow and microbial activity was also controlled after being disinfected by chlorine. This treatment process could control the growth of bacteria and OPs including Legionella pneumophila and Mycobacterium avium very well. Therefore,UV/H_2O_2-active carbon filtration-chlorination could control DBPs formation and OPs growth in drinking water, and this water treatment process had a good application prospect.
【Fund】: 中国科学院前沿科学重点研究项目(QYZDY-SSW-DQC004);; 国家水体污染控制与治理科技重大专项(2017ZX07108 2017ZX07501-002)
【CateGory Index】: TU991.2
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved