CAJ | 학술논문

采用双频超声波对剩余污泥进行了破解试验研究,选取超声波的双频组合、声能密度、超声时间3个因素进行了正交试验.结果表明,最佳的超声波双频组合为18 kHz/20 kHz,声能密度为0.1 W/mL,超声时间为50 s;在处理浓度相同而体积不同的剩余污泥时,NH3-N含量随污泥体积的增加而呈下降趋势.
채용쌍빈초성파대잉여오니진행료파해시험연구,선취초성파적쌍빈조합、성능밀도、초성시간3개인소진행료정교시험.결과표명,최가적초성파쌍빈조합위18 kHz/20 kHz,성능밀도위0.1 W/mL,초성시간위50 s;재처리농도상동이체적불동적잉여오니시,NH3-N함량수오니체적적증가이정하강추세.
The decomposition tests of excess sl：：dge are conducted with dual-frequency ultrasonics. Three parameters of ultrasonic pretreatment, i.e., ultrasonic dual-frequency combination, ultrasonic density and ultrasonic time are evaluated through orthogonal experiments. The experiments have two results. The first one is the optimum parameters of frequency combination are 18 kHz/20 kHz, ultrasonic density is 0.1 W/mL, and ultrasonic time is 50 s. The second one is that the content of NH3-N decreased with the volume increase of sludge＇ when the concentration of excess sludge to be treated.