Discharge characteristics of gas-liquid hybrid nanosecond pulse discharge reactor and its inactivation effect on algae

作者：Sun Ming; Yang Yanyan; Jin Hongli; Dai Cunfeng

来源：High Voltage Engineering, 2015, 41(10): 3499-3504.

DOI：10.13336/j.1003-6520.hve.2015.10.043

• Discharge characteristics
• Discharge plasma
• Electric characteristics
• Electrical characteristic
• Nanosecond pulse
• Plate-Type
• Platymonas subcordiformis
• Pulse repetition frequencies

Strong oxidizing active species, shock wave and ultraviolet-light in liquid phase high voltage pulse discharge can be effectively applied to the water treatment.Choosing platymonas subcordiformis as the treatment target, we usednozzles-plate water treatment device and gas-liquid hybrid nanosecond pulse discharge to analyze the electric characteristics of reactor and the effects of discharge parameters on inactivation rate of platymonas subcordiformis. The results showed that, the single pulse energy increased with the pulse peak voltage, and the energy efficiency first increased and then reduced and the inflection point appeared when the pulse peak voltage being -7.6 kV with the energy efficiencybeing 34.1%.The inactivation rate of platymonas subcordiformis increased with the pulse peak voltage, pulse frequency and the discharge duration time. When the ventilation gas rate increased, the inactivation rate of platymonas subcordiformis first increased and then reduced. The inactivation rate of platymonas subcordiformis could reach 100% with the pulse peak voltage, the ventilation gas rate, the circulation rate, the discharge duration time and the pulse repetition frequency being -9.4 kV, 70 mL/min, 380 mL/min, 30 min and 70 Hz, respectively.

• 出版日期2015
• 单位上海海事大学