The Sterilization Effect of Cooperative Treatment of High Voltage Electrostatic Field and Variable Frequency Pulsed Electromagnetic Field on Heterotrophic Bacteria in Circulating Cooling Water

2017 3rd International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Gao, Xuetong^1 ; Liu, Zhian^1 ; Zhao, Judong^2

School of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot

010051, China^1

School of Science, Inner Mongolia University of Technology, Hohhot

010051, China^2

关键词: Circulating cooling water;    Electric field strength;    Heterotrophic bacterias;    High voltage electrostatic field;    High voltage power supply;    Low energy consumption;    Pulsed electromagnetic fields;    Sterilization technology;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/108/5/052017/pdf
DOI  :  10.1088/1755-1315/108/5/052017

来源: IOP

【 摘 要 】

Compared to other treatment of industrial circulating cooling water in the field of industrial water treatment, high-voltage electrostatic field and variable frequency pulsed electromagnetic field co-sterilization technology, an advanced technology, is widely used because of its special characteristics - low energy consumption, nonpoisonous and environmentally friendly. In order to get a better cooling water sterilization effect under the premise of not polluting the environment, some experiments about sterilization of heterotrophic bacteria in industrial circulating cooling water by cooperative treatment of high voltage electrostatic field and variable frequency pulsed electromagnetic field were carried out. The comparison experiment on the sterilization effect of high-voltage electrostatic field and variable frequency pulsed electromagnetic field co-sterilization on heterotrophic bacteria in industrial circulating cooling water was carried out by change electric field strength and pulse frequency. The results show that the bactericidal rate is selective to the frequency and output voltage, and the heterotrophic bacterium can only kill under the condition of sweep frequency range and output voltage. When the voltage of the high voltage power supply is 4000V, the pulse frequency is 1000Hz and the water temperature is 30°C, the sterilization rate is 48.7%, the sterilization rate is over 90%. Results of this study have important guiding significance for future application of magnetic field sterilization.