常用深度除磷脱氮工艺在污水处理方面的优势比选

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【摘    要】： 将城镇污水处理厂深度除磷脱氮几种常用工艺进行优势比选，包括反硝化生物滤池、反硝化深床滤池、气浮、磁混凝高效沉淀池及其衍生的几种组合工艺，明确反硝化生物滤池脱氮+气浮除磷的组合工艺在处理效果、投资及成本方面均有明显优势。

【关键词】： 深度除磷脱氮；反硝化生物滤池；反硝化深床滤池；气浮；磁混凝高效沉淀池；污水处理

【中图分类号】：X703 【文献标志码】：C 【文章编号】：1008-3197（2023）06-49-03

【DOI编码】：10.3969/j.issn.1008-3197.2023.06.014

Optimization of Deep Phosphorus & Nitrogen  Removal Process in Urban Sewage Treatment Plant

LIU Zhijuan， CHEN Ming， LAI Wenjiang

（China United Engineering Corporation Limited，Hang Zhou 310052， China）

【Abstract】：This article compared several kinds of deep phosphorus & nitrogen removal processes in urban sewage treatment plant， include denitrifying biological filter， denitrifying deep bed filter， air flotation， magnetic coagulation high efficiency sedimentation tank and their combined processes， and discovered that the process of denitrifying biological filter + air flotation has obvious advantages in removal efficiency， investment and cost.

【Key words】：deep phosphorus & nitrogen removal；denitrifying biological filter；denitrifying deep bed filter；air flotation；magnetic coagulation high efficiency sedimentation tank；sewage treatment

过量的植物性营养元素氮、磷排入水体会加速水体的富营养化过程[1]。（剩余4795字）