US/O3 combination degradation of aniline in aqueous solution.
The influencing factors and mechanism of ultrasound (US)/ozone (O3) combination degradation of aniline in water were investigated. An increment of approximately 64% of aniline reduction and 110% of TOC reduction were observed with respect to the addition of the separated O3 and US systems, proving US/O3 technology had significant synergetic effects. Excellent removal performance was observed in the degradation with US/O3. With the initial concentration of aniline at 100 mg l(-1), the energy density of ultrasound at 0.1 W ml(-1) and the flow rate of ozone at 2 mg min(-1), the removal efficiency of aniline would be at least 82% and that of TOC would be at least 20% after reaction for 5 min. Major by-products included nitrobenzene, p-benzoquinone, p-aminophenol, carboxylic acid, etc.
Song
Shuang
S
College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China.
He
Zhiqiao
Z
Chen
Jianmeng
J
D000814:Aniline Compounds / Q000737:chemistry* / Q000302:isolation & purification / Q000528:radiation effects*; D010126:Ozone / Q000737:chemistry*; D012996:Solutions; D013010:Sonication; D014867:Water / Q000737:chemistry*; D014873:Water Pollutants / Q000302:isolation & purification* / Q000528:radiation effects*; D018508:Water Purification / Q000379:methods*
D000814:Aniline Compounds; D012996:Solutions; D014873:Water Pollutants; D014867:Water; D010126:Ozone; C023650:aniline