In reversed A2/O process an anaerobic tank is put before anoxic tank and design dividual point infall in aerobic tank after anoxic tank. 在充分分析传统A2/O工艺的基础上,提出了将缺氧池置于厌氧池前面,厌氧池后设置好氧池的分点进水倒置A2/O工艺。
Different DO concentration in aerobic tank 2.8, 1.7, 0.8, 0.5mg/L was obtained by controlling the aeration rates, which was 0.9, 0.6, 0.4, 0.3m3/h, respectively. 设置0.
Tests show that the equivalent sludge concentration and the quantity of nitrobacteria in the aerobic tank were increased when some suspended biomass supports were added in it. 试验表明应用浮动填料可大幅度提高曝气池中的活性污泥浓度并增加硝化菌的固着量，因而使该系统对COD、氨氮和总氮的去除能力均优于普通活性污泥系统。
He is siphoning out petrol from a tank. 他在从油罐里吸出汽油。
Experimental Study on Treatment of Sewage with Demand Aerobic Tank-Intermittent Aerobic Tank Process 利用连续-间歇曝气工艺处理生活污水的试验研究