Research on the cavitation characteristics and disinfection performance optimization of a rotor-radial groove hydrodynamic cavitation reactor
Rotary hydrodynamic cavitation reactor is widely used in the field of water treatment because of its excellent cavitation performance. A new type of arc rotor is presented in this paper. The effects of different rotation speeds and width of stator cavitation generating units (CGUs) on cavitation cha...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-09-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025024454 |
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| author | Lei Wang Sitong Guan Chi Zhang Yongxing Song Yi Ge Linhua Zhang Jingting Liu Weibin Zhang |
| author_facet | Lei Wang Sitong Guan Chi Zhang Yongxing Song Yi Ge Linhua Zhang Jingting Liu Weibin Zhang |
| author_sort | Lei Wang |
| collection | DOAJ |
| description | Rotary hydrodynamic cavitation reactor is widely used in the field of water treatment because of its excellent cavitation performance. A new type of arc rotor is presented in this paper. The effects of different rotation speeds and width of stator cavitation generating units (CGUs) on cavitation characteristics of a rotor-radial groove hydrodynamic cavitation reactors are discussed. Cavitation bubble volume, cavitation phenomenon of the stator and rotor domains in the reactor were used to characterize the cavitation characteristics. A hydrodynamic cavitation disinfection experimental system was set up to disinfect the Escherichia coli solution. Take samples every 9 minutes for a total of three times. The disinfection rate of E. coli was used to characterize the disinfection performance of the reactor. The results show that more intense cavitation is caused on the surface of the arc rotor and in the CGUs of the stator. At 3600 rpm, 3900 rpm and 4200 rpm, the cavitation bubble volume in the reactor was increased by 196 %, 301 % and 240 % respectively. The stator CGU width is 1.8 mm, the cavitation intensity is maximum. The reactor with the arc rotor was operated at a speed of 3900 rpm for 27 minutes. The sterilization rate has increased by 17.7 % compared with the original rotor under the same working conditions. The arc rotor greatly optimizes the cavitation characteristics and disinfection performance of the reactor. It promotes the further development of hydrodynamic cavitation in the field of water treatment. |
| format | Article |
| id | doaj-art-ffc579a990db458a9738776be4f9ecc5 |
| institution | Kabale University |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-ffc579a990db458a9738776be4f9ecc52025-08-20T03:56:04ZengElsevierResults in Engineering2590-12302025-09-012710637410.1016/j.rineng.2025.106374Research on the cavitation characteristics and disinfection performance optimization of a rotor-radial groove hydrodynamic cavitation reactorLei Wang0Sitong Guan1Chi Zhang2Yongxing Song3Yi Ge4Linhua Zhang5Jingting Liu6Weibin Zhang7School of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, ChinaSchool of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, ChinaSchool of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, ChinaSchool of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, China; Corresponding authors.School of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, China; Corresponding authors.School of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, ChinaKey Laboratory of High-efficiency and Clean Mechanical Manufacture, National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan 250061, Shandong, ChinaKey Laboratory of Fluid and Power Machinery at Xihua University, Ministry of Education, Chengdu 610039, ChinaRotary hydrodynamic cavitation reactor is widely used in the field of water treatment because of its excellent cavitation performance. A new type of arc rotor is presented in this paper. The effects of different rotation speeds and width of stator cavitation generating units (CGUs) on cavitation characteristics of a rotor-radial groove hydrodynamic cavitation reactors are discussed. Cavitation bubble volume, cavitation phenomenon of the stator and rotor domains in the reactor were used to characterize the cavitation characteristics. A hydrodynamic cavitation disinfection experimental system was set up to disinfect the Escherichia coli solution. Take samples every 9 minutes for a total of three times. The disinfection rate of E. coli was used to characterize the disinfection performance of the reactor. The results show that more intense cavitation is caused on the surface of the arc rotor and in the CGUs of the stator. At 3600 rpm, 3900 rpm and 4200 rpm, the cavitation bubble volume in the reactor was increased by 196 %, 301 % and 240 % respectively. The stator CGU width is 1.8 mm, the cavitation intensity is maximum. The reactor with the arc rotor was operated at a speed of 3900 rpm for 27 minutes. The sterilization rate has increased by 17.7 % compared with the original rotor under the same working conditions. The arc rotor greatly optimizes the cavitation characteristics and disinfection performance of the reactor. It promotes the further development of hydrodynamic cavitation in the field of water treatment.http://www.sciencedirect.com/science/article/pii/S2590123025024454Arc rotorHydrodynamic cavitation reactorCavitation characteristicsDisinfection performanceOptimization |
| spellingShingle | Lei Wang Sitong Guan Chi Zhang Yongxing Song Yi Ge Linhua Zhang Jingting Liu Weibin Zhang Research on the cavitation characteristics and disinfection performance optimization of a rotor-radial groove hydrodynamic cavitation reactor Results in Engineering Arc rotor Hydrodynamic cavitation reactor Cavitation characteristics Disinfection performance Optimization |
| title | Research on the cavitation characteristics and disinfection performance optimization of a rotor-radial groove hydrodynamic cavitation reactor |
| title_full | Research on the cavitation characteristics and disinfection performance optimization of a rotor-radial groove hydrodynamic cavitation reactor |
| title_fullStr | Research on the cavitation characteristics and disinfection performance optimization of a rotor-radial groove hydrodynamic cavitation reactor |
| title_full_unstemmed | Research on the cavitation characteristics and disinfection performance optimization of a rotor-radial groove hydrodynamic cavitation reactor |
| title_short | Research on the cavitation characteristics and disinfection performance optimization of a rotor-radial groove hydrodynamic cavitation reactor |
| title_sort | research on the cavitation characteristics and disinfection performance optimization of a rotor radial groove hydrodynamic cavitation reactor |
| topic | Arc rotor Hydrodynamic cavitation reactor Cavitation characteristics Disinfection performance Optimization |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025024454 |
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