Water disinfection by sonophotochemical method using persulfate

4th School-Seminar of Young Russian Scientists "Problems of Sustainable Regional Development", dedicated to the 70th anniversary of Academician of the Russian Academy of Sciences Arnold Kirillovich Tulokhonov

自然科学（总论）

Tsenter, I.M.^1 ; Garkusheva, N.M.^1 ; Shirapova, G.S.^1

Baikal Institute of Nature Management SB RAS, Ulan-Ude

670047, Russia^1

关键词: Advanced oxidation process;    E. coli;    Enterococcus faecalis;    High frequency ultrasounds;    Oxidation Systems;    Ultra-violet;    Water disinfections;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/320/1/012040/pdf
DOI  :  10.1088/1755-1315/320/1/012040

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

The efficiency of water disinfection was investigated using advanced oxidation processes (AOPs) based on ultraviolet (UV) LEDs and high-frequency ultrasound (US) in the presence and absence of persulfate (PS). The hybrid oxidation system {UV+US+PS} was found to be the most effective for inactivating Enterococcus faecalis in a row: {UV+US+PS}>{UV+PS}>{UV+US}>{UV}>{US+PS}>{US}. The effect of US in this hybrid system for Escherichia coli was not observed and the systems {UV+US+PS} and {UV+PS} were equally effective. Complete inactivation (100%) of E. faecalis and E. coli by sonophotochemical method using PS was achieved after 10 - and 7-min treatment, respectively. We suppose that this method is promising for effective water disinfection.