MSBR工艺除磷--以武鸣污水处理厂为例  

Phosphorus Removal by MSBR Process--A Case of Wuming WWTP

作　　者：许谦 贝德光 陈程程 罗莹 XU Qian;BEI Deguang;CHEN Chengcheng;LUO Ying(Guangxi Nanning Water Co.,Ltd.,Nanning530031,China)

机构地区：[1]广西绿城水务股份有限公司,广西南宁530031

出　　处：《净水技术》2021年第6期71-76,共6页Water Purification Technology

基　　金：广西创新驱动发展专项资金项目课题工业和市政污泥处理处置与资源化关键技术开发及应用示范(桂科AA18118013)子课题-利用水泥窑无害化协同处置市政污泥研究与示范(桂科AA18118013-5)。

摘　　要：随着污水管网的不断完善,武鸣污水处理厂的进水TP由原1.5 mg/L增加至4.3 mg/L,需采用化学除磷的手段辅助削减TP。生物除磷方面,在不投加任何化学除磷药剂的前提下,将MLSS从5000~8000 mg/L降至3000~4000 mg/L,缩短污泥泥龄,提高生物除磷效率;化学除磷方面,通过重新比选除磷药剂及重新选取药剂投加点,确定使用PAC(食品级,Al_(2)O_(3)有效含量≥28%),并采用同步投加与后置投加相结合的多点投加方式,使出水TP稳定在0.5 mg/L以下。With continuous improvement of wastewater pipeline networks,TP of Wuming Wastewater Treatment Plant(WWTP)has increased from 1.5 mg/L to 4.3 mg/L,which needs to be removed by chemical phosphorus removal.In terms of biological phosphorus removal,MLSS is reduced from 5000~8000 mg/L to 3000~4000 mg/L without addition of any chemical phosphorus removal agent.In the aspect of chemical phosphorus removal,PAC(food grade,Al2O3 effective content≥28%)is determined to be used through recomparison of phosphorus removal agent and re-selection of agent dosing point,and multi-point dosing method combining synchronous dosing and post dosing is adopted to stabilize the effluent TP below 0.5 mg/L.

关 键 词：生物除磷 化学除磷 MLSS 同步投加 后置投加 多点投加 

分 类 号：TU992.3[建筑科学—市政工程]