NDLI: UV Enhanced Chlorination of Sewage against "Tailing" Phenomenon

Content Provider	IEEE Xplore Digital Library
Author	Yong-mei Liang Chao-bin Liu Zheng-bo Ma Jun He Ya-Liang Zhou Jin-Chan Chen Wei Liu
Copyright Year	2010
Abstract	Abstract: Combined disinfection with UV radiation and chlorination was investigated to reduce the tailing extent in chlorination of secondary effluent. Impacts of exposure sequences to UV and chlorination, pH, dosage of chlorine and UV dose on kinetic curves of E. coli was evaluated. Suspended solids significantly affect the extent of "tailing" phenomenon. Reduction of SS considerably increased the log-kill in tailing region. Combined disinfection with UV radiation and chlorination substantially increased the disinfection rate by 1.08-1.25 times in fast-order region, and consequently increased the log-kill by 2-2.5 level in tailing region. The synergistic effects of combined disinfection with UV radiation and chlorination were confirmed. UV-HOCl sequence resulted in higher inactivation rate than HOCl-UV sequence. Lowering pH and/or increasing chlorine dosage magnified the enhancements in first-order disinfection rate, and shortened the starting time of tailing region. Variation in UV dose had no significant effects on starting time of tailing region.
Starting Page	1
Ending Page	3
File Size	285699
Page Count	3
File Format	PDF
ISBN	9781424447121
ISSN	21517622
DOI	10.1109/ICBBE.2010.5514943
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-18
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical collimators Microorganisms Filters Ultraviolet sources Effluents Lamps Sewage treatment Solids Kinetic theory Testing
Content Type	Text
Resource Type	Article

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