摘要
在A2/O工艺基础上,增加缺氧段并与膜分离相结合,构建了A2/O/A/MBR强化生物脱氮除磷中试系统,并用于处理低碳源城市污水。经过两个阶段共60d的调试后装置达到稳定运行。调试阶段的试验结果表明,在进水COD为88～440mg/L、NH4+-N为7.49～46.7mg/L、TN为15.17～47.56mg/L、TP为1.52～4.96mg/L的条件下,其出水平均浓度分别为21.36、1.09、9.62、0.19mg/L,达到了GB18918—2002的一级A标准。针对装置设计和机械故障问题,探讨了相应的解决方案,试验结果可为污水厂的提标改造提供设计和运行参考。
Based on the A2/O process,by increasing an anoxic phase and combining with membrane separation,a A2/O/A/MBR pilot test system to enhance biological nitrogen and phosphorus removal was constructed and used to treat low carbon source municipal wastewater. After the startup period for 60 d,the pilot device reaches stable operation. When the influent concentrations of COD,NH+4-N,TN and TP are 88 to 440 mg/L,7.49 to 46.7 mg/L,15.17 to 47.56 mg/L and 1.52 to 4.96 mg/L respectively,their average effluent concentra...
出处
《中国给水排水》
CAS
CSCD
北大核心
2009年第23期6-9,14,共5页
China Water & Wastewater
基金
水体污染控制与治理科技重大专项(2008ZX07313-004)
关键词
膜生物反应器
脱氮除磷
内源反硝化
中试
调试
MBR
nitrogen and phosphorus removal
endogenous denitrification
pilot-scale experiment
startup
