污泥龄对BBSNP工艺反硝化除磷脱氮效能的影响  

Effect of Sludge Retention Time on Nitrogen and Phosphorus Removal Efficiency of Bi-bio-selector for Nitrogen and Phosphorus Removal Process

作　　者：李伟光 李东辉[1] 姚杰 张光林 张厚强 牛礼跃 张福贵 LI Wei-guang;LI Dong-hui;YAO Jie;ZHANG Guang-lin;ZHANG Hou-qiang;NIU Li-yue;ZHANG Fu-gui(School of Environment,Harbin Institute of Technology,Harbin 150090,China;State Key Laboratory of Urban Water Resource and Environment,Harbin 150090,China;Shanghai Chengtou Wastewater Treatment Co.Ltd.,Shanghai 201203,China;Longjiang Environmental Protection Group Co.Ltd.,Harbin 150050,China)

机构地区：[1]哈尔滨工业大学环境学院,黑龙江哈尔滨150090 [2]城市水资源与水环境国家重点实验室,黑龙江哈尔滨150090 [3]上海城投污水处理有限公司,上海201203 [4]龙江环保集团股份有限公司,黑龙江哈尔滨150050

出　　处：《中国给水排水》2020年第17期13-17,共5页China Water & Wastewater

摘　　要：基于上海某污水处理厂的生产性试验装置,研究了污泥龄(SRT)对两级生物选择反硝化除磷脱氮(BBSNP)工艺反硝化除磷效能的影响。结果表明,SRT对BBSNP工艺的反硝化除磷效能有着较大的影响。当将SRT从7 d提高到15 d时,厌氧区的COD去除率由62.37%提高到80.32%;缺氧吸磷率均值由33.9%提高到77.9%,厌氧释磷倍数由3.11倍提高到4.13倍;总氮去除率由68.27%提高到74.05%,这表明系统内富集了大量的反硝化聚磷菌,表现出良好的反硝化除磷效果,提高了出水水质。Effect of sludge retention time(SRT)on the nitrogen and phosphorus removal efficiency of the bi-bio-selector for nitrogen and phosphorus removal(BBSNP)process was explored based on full-scale test device in a municipal sewage treatment plant in Shanghai.The results showed that SRT had a great influence on nitrogen and phosphorus removal efficiency of the BBSNP process.After increasing the SRT from 7 days to 15 days,COD removal efficiency in the anaerobic tank increased from 62.37%to 80.32%,the anoxic phosphorus uptake rate increased from the average of 33.9%to 77.9%,the anaerobic phosphorus release time increased from 3.11 times to 4.13 times,and the total nitrogen removal efficiency increased from 68.27%to 74.05%.This indicated that a large number of denitrifying phosphorus accumulating bacteria were enriched in the system,which showed a good removal effect of nitrogen and phosphorus and improved the effluent quality.

关 键 词：两级生物选择反硝化除磷脱氮工艺 污泥龄 缺氧吸磷率 反硝化聚磷菌 

分 类 号：TU992[建筑科学—市政工程]