作　　者： ; ; ; ; ;

机构地区： 华南理工大学环境科学与工程学院

出　　处： 《中国给水排水》 2009年第7期5-8,共4页

摘　　要： 采用有效容积为1200m^3的SBR反应器处理垃圾渗滤液与市政粪水的混合液，探讨了对两者进行混合处理的可行性。反应器对COD、BOD5、TN、NH4^＋-N和TP的平均去除率分别达到92．12％、98．48％、81．45％、99．68％和96．52％，相应的平均去除负荷分别为145．75、51．51、22．73、25．04和0．53g／（kgSS·d）。当控制C／N在5．0～6．5之间时，对TN的平均去除率可达81．45％，对COD的平均去除率为92．46％，出水COD≤450mg／L、BOD，≤30mg／L、NH4^＋-N≤10mg／L、TN≤180mg／L、TP≤1．0mg／L、色度≤320倍。SBR反应器对垃圾渗滤液和粪水的混合处理效果较好，粪水的混入可有效提高垃圾渗滤液的可生化性以及反应器对TN和TP的去除率，有效解决了垃圾渗滤液中TN去除的难题；同时，反应器内可能存在比短程硝化反硝化消耗更少碳源的脱氮反应形式，但出水COD浓度仍略高。 The feasibility of treating mixture of landfill leachate and municipal fecal supernatant was investigated in a 1 200 m^3 SBR. During the experiment, the average removal rates of COD, BOD5 , TN, NH4^＋ - N and TP are 92.12% , 98.48% , 81.45% , 99.68% and 96.52% respectively. The corresponding average removal loadings are 145.75 g/（kgSS · d）, 51.51 g/（kgSS · d） , 22.73 g/（kgSS · d）, 25.04 g/（kgSS · d） and 0.53 g/（kgSS · d） respectively. The average removal rates of TN and COD are 81.45% and 92.46% when the C/N ratio is controlled between 5.0 and 6.5, and the effluent concentrations of COD, BOD5, NH4^＋ -N, TN, TP and color are equal to or less than 450 mg/L, 30 mg/L, 10 mg/L, 180 mg/L, 1.0 mg/L and 320 times respectively. The SBR has a favorable treatment efficiency of mixture of landfill leachate and fecal supernatant. The addition of fecal supernatant can effectively enhance the biodegradability of landfill leachate and the removal rates of TN and TP. A nitrogen removal reaction with less carbon consumption than shortcut nitrification and denitrification occurs in the SBR.However, the effluent COD concentration is still relatively high.

关 键 词： 垃圾渗滤液 粪水 脱氮

领　　域： [环境科学与工程]