竖流式一体化反应器处理乡镇污水的影响因素  

Influencing Factors of Vertical Flow Integrated Reactor for Township Sewage Treatment

作　　者：肖炘圻 陈鑫 周伟[3] 龙云川[3] 胡菁[3] 周少奇[1,3,4] XIAO Xinqi;CHEN Xin;ZHOU Wei;LONG Yunchuan;HU Jing;ZHOU Shaoqi(College of Resource and Environmental Engineering, Guizhou University,Guiyang 550025,China;LVDI Environmental Technology Co., Ltd., Guiyang 550000,China;Guizhou Academy of Sciences, Guiyang 550001,China;School of environment and energy,South China University of Technology,Guangzhou 510006,China)

机构地区：[1]贵州大学资源与环境工程学院,贵州贵阳550025 [2]绿地环保科技股份有限公司,贵州贵阳550000 [3]贵州科学院,贵州贵阳550001 [4]华南理工大学环境与能源学院,广东广州510006

出　　处：《水处理技术》2019年第8期116-119,124,共5页Technology of Water Treatment

基　　金：国家重点研发计划项目资助（2016YFC0400702）;中央引导地方科技科技发展专项资金（黔科中引地[2018]4005）;贵州省科技计划项目（黔科合平台人才2017[5409]）

摘　　要：设计了1种竖流式一体化反应器用于处理乡镇生活污水,该反应器将原本A2/O工艺中单独设置的厌氧区、缺氧区、好氧区和沉淀区整合为一体,实验考察了HRT和好氧区DO含量对处理效果的影响。结果表明,4组好氧区HRT分别为6、8、10、12 h时,COD、NH3-N、TN、TP的去除率分别为69%~81%、77%~87%、74%~81%、73%~82%;当好氧区DO的质量浓度分别为1.5、2.5、3.5 mg/L时,COD、NH3-N、TN、TP的去除率分别为69%~79%、76%~84%、72%~79%、74%~79%。综合考虑处理效果和成本,HRT为8 h、DO的质量浓度2.5 mg/L时较为适合,此时出水COD、NH3-N、TN、TP均可满足GB 18918-2002污水排放一级A标准。该竖流式一体化反应器具有结构紧凑、占地面积小等特点。Avertical flow integrated reactor was used to treat township domestic sewage. The reactor integrated the anaerobic zone, anoxic zone, aerobic zone and sedimentation zone which separately set up in the original A2/O process, the effect of H RT and DO content in aerobic zone on the treatment efficiency were investigated. The results showed that the removal rates of COD , NH3-N, TN and TP were 69 %-81%, 77%-87%-74%-81 %, 73 %.82 % respectively in the four sets of HRT conditions (6 h, 8 h, 10 h, 12 h). When mass concentration of DO in aerobic zone was 1.5 mg/L, 2.5 mg/L and 3.5 mg/L, the removal rates of COD, NH3-N,TN and T P were 69 %.79%, 76 %-84%,72 %-79 % and 74 %.79%, respectively. Considering the treatment effect and cost, the optimum operation parameters were as follow, HRT was 8 h and mass concentration of DO was 2.5 mg/L,the COD , NH 3-N, TN and TP could meet the first level Astandard of sewage discharge of GB 18918.2002.

关 键 词：乡镇污水 竖流式一体化反应器 水力停留时间 好氧区溶解氧 

分 类 号：X703.1[环境科学与工程—环境工程]