CAJ | 학술논문

在SBR反应器中，以普通絮状活性污泥作为接种污泥，采用模拟豆浆废水培养好氧颗粒污泥，研究投加活性炭粉末的粒径大小及曝气量、沉降时间对好氧颗粒污泥形成的影响．实验结果表明，好氧颗粒污泥最佳培养条件为上升速度1．4cm／s、沉降时间2min、活性炭粉末粒径140目，14d污泥颗粒化．培养成熟的好氧颗粒污泥表面与内部可见活性炭；颗粒污泥表面由较多交织缠绕的丝状菌和大量的菌体而组成，内部呈孔隙、层状结构，发现有兼性厌氧球菌；具有较好的机械强度，沉降速度为普通活性污泥的5倍以上．污泥全部颗粒化后，COD负荷达2．6～3．2g／L·d，COD去除率达到70％～94％．
재SBR반응기중，이보통서상활성오니작위접충오니，채용모의두장폐수배양호양과립오니，연구투가활성탄분말적립경대소급폭기량、침강시간대호양과립오니형성적영향．실험결과표명，호양과립오니최가배양조건위상승속도1．4cm／s、침강시간2min、활성탄분말립경140목，14d오니과립화．배양성숙적호양과립오니표면여내부가견활성탄；과립오니표면유교다교직전요적사상균화대량적균체이조성，내부정공극、층상결구，발현유겸성염양구균；구유교호적궤계강도，침강속도위보통활성오니적5배이상．오니전부과립화후，COD부하체2．6～3．2g／L·d，COD거제솔체도70％～94％．
Aerobic granular sludge seeded with conventional activated sludge was cultivated in sequencing batch reactors using simulated soya-bean milk wastewater. The effects of the particle size of activated carbon powder, aeration rate and settling time on the formation of aerobic granular sludge were studied. The result shows that the optimal cultural conditions of aerobic granular sludge are. aeration rate of 1.4 cm/s, settling time of 2 rain and the particle size of activated carbon powder of 140 meshes. The surface and the inner part of matured aerobic granular sludge showed activated carbon. And the surface of matured aerobic granular sludge showed large a- mounts of bacteria and filamentous intertwined and wrapped each other. The inner part of granular sludge presented pore and layer structure with facultative anaerobic bacteria. Aerobic granular sludge has good mechanical strength;the settling velocity is 5 times more than the conventional activated sludge. The COD loading rating and percent COD removal are 2.6-3.2 g/L·d and 70%- 94%, respectively when all the sludge is granulation.