CAJ | 학술논문

在序列间歇式活性污泥反应器(SBR)中成功培养出适应化粪池污水水质的好氧颗粒污泥.并将其应用于化粪池污水的处理.在好氧颗粒污泥培养的第15天左右,SBR中开始出现细小的颗粒,然后微生物在其上繁殖生长使颗粒逐渐增大而成熟;在第24天时,SBR中絮状活性污泥已基本实现了颗粒化.培养出的好氧颗粒污泥对化粪池污水有稳定的处理效果,在进水完全为化粪池污水时,COD、NH_4~+-N、TN的平均去除率分别为77%、61%、47%.但是,由于化粪池污水COD较低,因此无法维持较高的生物量,在后期的稳定运行过程中MLSS始终维持在2 500 mg/L左右.好氧颗粒污泥的同步硝化反硝化作用是其稳定脱氮的保证.
재서렬간헐식활성오니반응기(SBR)중성공배양출괄응화분지오수수질적호양과립오니.병장기응용우화분지오수적처리.재호양과립오니배양적제15천좌우,SBR중개시출현세소적과립,연후미생물재기상번식생장사과립축점증대이성숙;재제24천시,SBR중서상활성오니이기본실현료과립화.배양출적호양과립오니대화분지오수유은정적처리효과,재진수완전위화분지오수시,COD、NH_4~+-N、TN적평균거제솔분별위77%、61%、47%.단시,유우화분지오수COD교저,인차무법유지교고적생물량,재후기적은정운행과정중MLSS시종유지재2 500 mg/L좌우.호양과립오니적동보초화반초화작용시기은정탈담적보증.
The aerobic granular sludge was cultivated in sequencing batch reactor (SBR) and acclimated with septic tank wastewater. The small granules were found after 15 d cultivation, and the granules became larger with mi-croorganism growing on its surface. The granulation process was almost completed after 24 d of cultivation. The aer-obic granular sludge had a perfect capability of septic tank wastewater disposal. The average removal rate of COD,NH+-N and TN were 77% ,61% and 47% respectively. Granular sludge in the stable running process had the MLSS of 2 500 mg/L for the lower COD contained septic tank wastewater could not sustain the higher biomass. Simultane-ous nitrification and denitrification ensured the aerobic granular sludge removing nitrogen stably.