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Journal of Applied Fluid Mechanics، جلد ۱۵، شماره ۱، صفحات ۲۴۵-۲۵۳
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عنوان انگلیسی A Choking Cavitation Method and Equipment for Degrading Pollutants in Wastewater
چکیده انگلیسی مقاله A cavitator, with a structure of an annular conical aperture, a throat and a collapse cavity, was proposed to form a choking cavitation flow for pollutants degradation in wastewater treatment. Experiment was conducted in this new cavitator to investigate its flow characteristics and pollutant degradation ratio by employing Mythylene blue (MB) as a pollutant in pure water. It was found that choking cavitation flow appears in the throat by controlling the pump pressure and liquid flow rate in a rule. The pollutant degradation ratio in choking cavitation flow is much larger than that in normal cavitation flow, because plenty of cavitation vapours are born, grow up, and finally collapse in this cavitator in the choking cavitation condition. Gemetrical parameters also affect pollutant degradation ratio, and the optimal gemetrical parameters for this proposed cavitator are suggested.
کلیدواژه‌های انگلیسی مقاله Cavitation, Choking flow, Degradation, Throat, Pollutants
نویسندگان مقاله Z. N. Wang |
School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China

R. Z. Gong |
School of Business, Hunan University of Science and Technology, Xiangtan 411201

H. Long |
School of Business, Hunan University of Science and Technology, Xiangtan 411201

H. Liu |
School of mechanical engineering, Hunan University of Science and Technology, Xiangtan, 411201

G. Cheng |
School of Mechanical Engineering, Hunan University of Technology, Zhuzhou 412007

F. H. Zhang |
School of Mechanical Engineering, Hunan University of Technology, Zhuzhou 412007

نشانی اینترنتی https://www.jafmonline.net/article_1914_bbf79cee9d15fc5bf877fa12044e5245.pdf
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