Title :
Experiment Study on Ultrasonic Collaborating to Control E. coli´s Photoreactivation by Ultraviolet Disinfection in Wastewater Treatment Plant
Author :
Zhang, Kui ; Tan, Shuicheng
Author_Institution :
Dept. of Environ. & Municipal Eng., Henan Univ. of UrbanConstruction, Pingdingshan, China
Abstract :
Microorganisms can photoreactivate after ultraviolet radiation on the effluent from WWTP. The effect of ultrosonic pretreatment collaborating to control E. coli´ s photoreactivation by UV disinfection is studied in this essay. It is found that there is a good linear relationship between UV irradiation dose and E. coli´ s inactivation rate, and the interrelated coefficient is 0.99. When US collaborating to UV as pretreatment, E. coli´s photoreactivation rate can decrease by 59% with the same energy consumption, while energy consumption can decrease by 50% with the same photoreactivation rate. Considering economics and microorganisms security, US-UV is regarded as efficient and feasible for wastewater disinfection.
Keywords :
microorganisms; photochemistry; sterilisation (microbiological); ultrasonic applications; wastewater treatment; E. coli; effluent; energy consumption; interrelated coefficient; microorganisms; photoreactivation; ultraviolet disinfection; wastewater treatment plant; Collaboration; DNA; Effluents; Energy consumption; Lamps; Microorganisms; Security; Temperature control; Ultrasonic imaging; Wastewater treatment;
Conference_Titel :
Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4712-1
Electronic_ISBN :
2151-7614
DOI :
10.1109/ICBBE.2010.5517224
