污水处理厂微氧曝气—多段AO工艺优化运行实践  

Application of micro oxygen aeration multi stage AO process in optimal operation mode of wastewater treatment plant

作　　者：谢益佳 戴仲怡 李树苑 王雪 都雪晨 徐彦飞 XIE Yijia;DAI Zhongyi;LI Shuyuan;WANG Xue;DU Xuechen;XU Yanfei(Central&Southern China Municipal Engineering Design and Research Institute Co.,Ltd.,Wuhan 430010,China)

机构地区：[1]中国市政工程中南设计研究总院有限公司,武汉430010

出　　处：《给水排水》2021年第8期45-48,共4页Water & Wastewater Engineering

摘　　要：某城镇污水处理厂设计规模12万m^(3)/d,采用AAO-MBR工艺,为了保证出水TN稳定达标(≤10mg/L),外加碳源量较大,电耗较高,导致运行成本过高。通过将传统AAO工艺调整为微氧曝气-多段AO工艺运行方式,在实际进水水质明显提高的情况下,改造后出水水质指标均优于改造前的水平,其中TN去除率提高约6%,且外加碳源量减少约92%,运行能耗降低约62%,取得了较好的经济效益和环境效益。The design scale of a town sewage treatment plant is 120000 m^(3)/d,AAO-MBR process was adopted,In order to ensure that the effluent TN is stable and up to standard(≤10 mg/L),the amount of additional carbon source is large,and the power consumption is high,which leads to high operation cost.The traditional AAO process is adjusted to the micro oxygen aeration multi-stage a/o process.Under the condition of the actual water quality improvement,the effluent quality index after the transformation is better than the level before the transformation,among which TN removal rate is increased by 6%,the added carbon source is reduced by 92%,the operation energy consumption is reduced by about 62%,and the environmental and economic benefits are achieved.

关 键 词：AAO—MBR工艺 微氧曝气—两段AO工艺 运行优化 节能降耗 

分 类 号：TU992[建筑科学—市政工程]