RESEARCH ARTICLE


Pollutant and Microorganism Removal From Water by Hydrodynamic Cavitation



Zhimeng Liu, Mengfu Zhu*, Cheng Deng, Hongbo Su, Ping Chen, Zheng Wang*
Institute of Medical Equipment Academy of Military Medical Sciences NO.106, Wandong Road, Hedong District, Tianjin, China


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© Liu et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (https://creativecommons.org/licenses/by-nc/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the Institute of Medical Equipment Academy of Military Medical Sciences NO.106, Wandong Road, Hedong District, Tianjin China; E-mail: zmf323@163.com


Abstract

Hydrodynamic cavitation can effectively remove organic pollutants and microorganisms from water. Organic compound degradation and water disinfection removal rate is related to reaction time and operating temperature. Removal rate can be improved by increasing the reaction time or raising the operating temperature. Under our experimental conditions, the removal rate of colority, COD and petroleum pollutants was 80.0%, 72.13% and 70.00%, respectively. In addition, Escherichia coli removal rate was higher than 99.99%. As a new water treatment process, hydrodynamic cavitation can be utilized alone or in combination with other water treatment processes, showing broad application prospects.

Keywords: Escherichia Coli, Hydrodynamic cavitation, Oxidation, Petroleum pollutant, Water treatment.