摘要
通过单因素试验,研究了强化生物絮凝+生物接触氧化组合式一体化工艺对城市污水悬浮物SS、化学需氧量COD、氨氮NH3-N、总氮TN、总磷TP的去除效能和机理。试验结果表明:在组合工艺的较优运行条件下,即进水流量Q=1.5m3/d,再生池溶解氧DO=2.0mg/L,絮凝池污泥负荷F/M=3.6kgCOD/(kgMLSS.d),强化一级处理段污泥龄SRT=15d,接触氧化池气水比=5:1,温度T=30℃时,装置对SS、COD、NH3-N、TN、TP的平均去除率分别为88.7%、89.3%、87.9%、73.4%、58.8%,可以使除磷外的所有指标达到《城镇污水处理厂污染物排放标准》(GB 18918-2002)中的一级B标准。
The removal efficiency and mechanism of sewage SS, COD, NH3-N, TN, TP was studied through the single factor experiment of strength bio-flocculation ＋ bio-contact oxidation combined technics. The results showed that： under the optimum operating conditions of combination technics, inlet Q = 1.5m3 / d, renewable pool DO = 2.0 mg / L, flocculation tank sludge load F/M = 3.6kgCOD / （kgMLSS · d）, strengthened primary treatment sludge age SRT= 15d contact oxidation pond air-water ratio = 5：1, temperature T= 30℃, the average removal rate of S S, COD, NH3-N, TN, TP were 88.7%, 89.3%, 87.9%, 73.4%, 58.8% respectively, excepted phosphorus all indexes could reach the level B of first standard of（The concentration of available discharged effluent from wastewater treatment plant intown》（GB 18918-2002）.
出处
《工程建设与设计》
2008年第1期77-81,共5页
Construction & Design for Engineering
关键词
城市污水
强化生物絮凝
生物接触氧化
municipal wastewater
Enhanced Biological flocculation
Bio-contact oxidation
