[Experimental study on the disinfection of wastewater by swept pulsed electromagnetic field].
In this paper, an applicable swept pulsed equipment was developed to treat the domestic wastewater and the effect of swept pulsed electromagnetic field on disinfection was studied. It was found that the effect was obvious and the disinfection performance of electromagnetic field was increased with the increasing of the pH, the temperature, the treatment time and the bactericidal concentration. The experimental results showed that the amounts of total bacterium and coliform per milliliter were decreased from 7.2 x 10(6) to 2.2 x 10(4) and from 9.2 x 10(5) to 3.5 x 10(4) respectively after the treatment period of 4 h when the temperature was 25 degrees C and pH 9.0. Corresponding, the removal efficiency of total bacterium were 99.7% and 96.2%.
Li
Mei
M
School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China.
Qu
Jiuhui
J
Peng
Yongzhen
Y
Lei
Pengju
P
D001419:Bacteria / Q000302:isolation & purification / Q000528:radiation effects; D004203:Disinfection; D004574:Electromagnetic Fields; D006863:Hydrogen-Ion Concentration; D013696:Temperature; D014871:Water Microbiology; D018508:Water Purification