污水提标项目氨氮去除问题的思考与分析  

Thinking and Analysis of Ammonia Nitrogen Removal in Sewage Upgrading Project

作　　者：范绍锦 陈柱堆 FAN Shaojin;CHEN Zhudui(Dongguan Water Group Sewage Purification Co.,Ltd.,Dongguan523000,China)

机构地区：[1]东莞市水务集团净水有限公司,广东东莞523000

出　　处：《净水技术》2022年第8期174-179,共6页Water Purification Technology

摘　　要：南方某地区为落实生态环境保护精神,实现水环境保护目标,近年来逐步投资了多个污水提标项目,将原污水处理项目出水各项指标由执行一级B标准全面提升为一级A标准或广东省地方标准较严值,部分提标项目在运营过程中发现存在出水氨氮污染物无法稳定达标的问题。文章结合该地区污水提标项目实际运营状况,分别对投加药剂去除氨氮、新增硝化工艺段去除氨氮两个方案展开思考与分析。研究发现,投加药剂方案应考虑增加工艺过程仪表,于折点加氯法实施段前端对水质氨氮指标进行持续、实时且精准的仪表检测及数据监控;新增硝化工艺段方案中,新增后置曝气生物滤池硝化工艺段比新增前置曝气生物滤池硝化工艺段前期工程投资小,且后期运营成本低。In order to implement the spirit of ecological and environmental protection, to achieve the goal of water environmental protection, a certain area in southern China has gradually invested in a number of sewage upgrading projects in recent years. The effluent indices of the original sewage treatment projects have been comprehensively upgraded from first class B standards to first class A standards or the stricter local standards in Guangdong Province. In the operation process of some projects, it was found that the ammonia nitrogen pollutants of effluent could not reach the standard stably. In this paper, the two schemes of ammonia nitrogen removal by adding reagents and nitrification process section were considered and analyzed when combined with the actual operation status of the sewage upgrading project in this area. It was found that the design process instrument should be added to the solution of adding reagents, and continuous, real-time and accurate instrument detection and data monitoring of water quality ammonia nitrogen index should be carried out at the front end of fold point chlorine process. In the scheme of the new nitrification process section, the newly added post-biological aerated filter nitrification process section has less engineering investment in the early stage and lower operation cost in the later stage than the newly pre-biological aerated filter nitrification process section.

关 键 词：污水提标项目 氨氮污染物 投加药剂 硝化工艺 氨氮去除 

分 类 号：TU992[建筑科学—市政工程]