分段进水SBR工艺处理高负荷城镇污水  

Treatment of High-loaded Urban Wastewater by a Step-feed SBR

作　　者：郭钟锐 孙滢斐 付根深 GUO Zhongrui;SUN Yingfei;FU Genshen(Li’er College,Hohai University,Nanjing 210044,China;Tsinghua University-Berkeley Shenzhen College,Shenzhen 518055,China;University of California,Berkeley,CA 94710,U.S.A;Central Plains Environment Protection Co.Ltd.,Zhengzhou 450000,China)

机构地区：[1]河海大学河海里尔学院,江苏南京210044 [2]清华大学清华-伯克利深圳学院,广东深圳518055 [3]University ofCalifornia,Berkeley,美国伯克利CA 94710 [4]中原环保股份有限公司,河南郑州450000

出　　处：《环境科学与技术》2025年第1期101-107,共7页Environmental Science & Technology

基　　金：深圳市高等院校稳定支持计划(WDZC20231127165623002)。

摘　　要：该文以某SBR工艺的城镇污水处理厂为研究对象,探讨了分段进水的工艺优化及自控系统的升级改造。结果表明,采用分段进水能有效解决高负荷城镇污水中氨氮降解迟滞的问题,减污降碳效果显著。在全流程分析中,分段等量进水相比于正常进水,其含氮污染物减少了41.9%。在实际运行过程中,出水水质得到进一步改善,处理水量及出水稳定性显著提高,处理水量同比增加12.0%,总氮去除率由88.2%提升至91.3%,COD污染物削减量增加1 061 t,同比提高24.3%。此外,分段进水在节能方面表现出显著优势,综合电单耗为0.427 kW·h/m^(3),同比降低5.32%;生产药剂中的碳源单耗减少13.28%,除磷药剂单耗降低8.97%。Taking an urban wastewater treatment plant with the SBR process as the case study,the process optimization of the step feed process and the upgrading of the automatic control system are discussed.The result shows that the step feed process can effectively address the delayed degradation of ammonia nitrogen in the high load urban wastewater,leading to significant pollution reduction and carbon emission.The full-process analysis indicates that nitrogen-containing pollutants were reduced by 41.9%with the equal feed mode compared with the normal feed mode.In practical operation,effluent quality is further improved with treated water volume,and effluent stability is significantly enhanced.The treated water volume increased by 12.0%year-on-year,and the total nitrogen removal rate has increased from 88.2%to 91.3%,COD pollutants in-creased by 1061 tons,a 24.3%year-on-year increase.In addition,the step feed demonstrates significant advantages in energy saving,with a comprehensive electricity unit consumption of 0.427 kW·h/m^(3),a year-on-year reduction of 5.32%;the carbon source unit consumption of the production chemicals is reduced by 13.28%,and the phosphorus removal chemicals unit consumption is reduced by 8.97%.

关 键 词：分段进水 高负荷城镇污水 减污降碳 节能降耗 

分 类 号：X703[环境科学与工程—环境工程]