CAJ | 학술논문

分别以金属氧化电极和不锈钢为阳极和阴极,在恒电流模式下,考察了电流密度、停留时间、放置时间、极间距和稀释比等因素对电厂循环冷却水杀菌效果的影响.实际现场结果表明,针对电厂循环冷却水,电化学杀菌处理是行之有效的,电流密度、停留时间、极间距、稀释比对杀菌效果影响较大;在电流密度120 A/m~2、停留时间10 s、极间距1.8 cm的条件下,杀菌效果可以达到97% ;在一定实验条件下及一定放置时间内,经处理后的循环冷却水异氧菌总数能得到有效抑制.
분별이금속양화전겁화불수강위양겁화음겁,재항전류모식하,고찰료전류밀도、정류시간、방치시간、겁간거화희석비등인소대전엄순배냉각수살균효과적영향.실제현장결과표명,침대전엄순배냉각수,전화학살균처리시행지유효적,전류밀도、정류시간、겁간거、희석비대살균효과영향교대;재전류밀도120 A/m~2、정류시간10 s、겁간거1.8 cm적조건하,살균효과가이체도97% ;재일정실험조건하급일정방치시간내,경처리후적순배냉각수이양균총수능득도유효억제.
Influencing factors on sterilizing effect of recirculating cooling water for power plants, such as current density, residence time, resting time, electrode interval, thining ratio, were researched under galvanostatic model and using metallic oxide coatings as anode and stainless steel as cathode. The experimental results showed that electrochemical sterilization was effective for recirculating cooling water of power plants, and the sterilizing effect of the recirculating cooling water was strongly affected by current density, residence time, electrode interval, thining ratio; sterilizing efficiency of the recirculating cooling water was 97% under the experimental conditions: current density 120 A/m~2, residence time 10 s, electrode interval 1.8 cm. The total number of heterotrophic bacteria for recirculating cooling water treated by electrochemical method was inhibited under certain experimental conditions and in in a certain period of resting time.