工业水处理 ›› 2019, Vol. 39 ›› Issue (10): 107-110. doi: 10.11894/iwt.2018-1027

• 工程实例 • 上一篇    下一篇

改良型两段活性污泥工艺在污水厂升级改造中的应用

曹隽1(),庞一敏2   

  1. 1. 上海城投污水处理有限公司天山污水处理厂, 上海 200336
    2. 上海城投资产管理(集团)有限公司, 上海 200438
  • 收稿日期:2019-07-11 出版日期:2019-10-20 发布日期:2019-10-29
  • 作者简介:曹隽(1968-),工程师。电话:13701656742, E-mail:2980709056@qq.com

Application of modified two-stage activated sludge process in upgrading and reconstruction of wastewater treatment plant

Jun Cao1(),Yimin Pang2   

  1. 1. Tianshan Wastewater Treatment Plant of Shanghai Municipal Investment Group, Shanghai 200336, China
    2. Shanghai Municipal Investment Assets(Group) Co., Ltd., Shanghai 200438, China
  • Received:2019-07-11 Online:2019-10-20 Published:2019-10-29

摘要:

介绍了上海天山水质净化厂升级改造工程的设计、改造措施及运行情况。该污水处理厂改造工程设计采用改良型两段活性污泥工艺。实际运行结果表明,改良后的污水处理工艺对污水中COD、BOD5、NH4+-N、TN、SS和TP的去除率分别稳定维持在87.8%~90.7%、93.2%~94.7%、91.3%~96.9%、64.2%~78.8%、91.7%~93.5%和78.0%~86.4%,各项出水水质指标相较改造前都明显降低,除TP外,其余各项水质指标均优于《城镇污水处理厂污染物排放标准》(GB 18918-2002)的一级A标准。工艺运行稳定高效、抗冲击负荷能力强。

关键词: 污水处理厂, 升级改造, 脱氮除磷, 改良型两段活性污泥法

Abstract:

The design, modification measures and operation of the upgrading and reconstruction project of the Shanghai Tianshan Water Purification Plant were introduced. The project was designed to use a modified two-stage activated sludge process. The running results showed that the removal rates of COD, BOD5, NH4+-N, TN, SS and TP in the modified process were stable at 87.8%-90.7%, 93.2%-94.7%, 91.3%-96.9%, 64.2%-78.8%, 91.7%-93.5% and 78.0%-86.4%, respectively. After the reconstruction, the effluent quality indicators were significantly lower, which were superior to the first-level A criteria, specified in the Pollutant Discharge Standard of Urban Sewage Treatment Plant (GB 18918-2002), except for TP. The modified process exhibits a stable and effective operation and has high resistance to shock loading.

Key words: wastewater treatment plant, upgrading and reconstruction, nitrogen and phosphorus removal, modified two-stage activated sludge process

中图分类号: