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中文摘要：
维持SBR反应器好氧段的平均DO为0．30mg／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。
英文摘要：
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 concluded that the treatment of domestic sewage with micro-bulking sludge under low DO is feasible.
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