CAJ | 학술논문

维持SBR反应器好氧段的平均DO为0.30 mg/L,采用好氧/缺氧的运行方式研究了微膨胀污泥在低溶解氧状态下去除污染物的效果.结果表明:在丝状菌污泥微膨胀状态下反应器的除污效果仍较好,出水SS含量很低,对COD、氨氮的去除率分别可达80%、90%以上,同时可以节省曝气量约25%.可见,在低溶解氧状态下采用微膨胀活性污泥处理生活污水是可行的.
유지SBR반응기호양단적평균DO위0.30 mg/L,채용호양/결양적운행방식연구료미팽창오니재저용해양상태하거제오염물적효과.결과표명:재사상균오니미팽창상태하반응기적제오효과잉교호,출수SS함량흔저,대COD、안담적거제솔분별가체80%、90%이상,동시가이절성폭기량약25%.가견,재저용해양상태하채용미팽창활성오니처리생활오수시가행적.
The sequencing batch reactor (SBR) operated in aerobic/anoxic process with mean DO value of 0.30 mg/L was used to investigate pollutant removal efficiency of micro-bulking sludge under low DO. The results show that the reactor has better pollutant removal efficiency under filamentous sludge bulking. The effluent SS value is low. The removal rates of COD and ammonia nitrogen can reach more than 80% and 90% respectively. At the same time, the aeration rate can be saved by 25%. It is conclu-ded that the treatment of domestic sewage with micro-bulking sludge under low DO is feasible.