石油化工安全环保技术 ›› 2025, Vol. 41 ›› Issue (6): 59-62.

• 清洁生产与综合治理 • 上一篇    

A/O 工艺运行效果诊断及优化运行建议

刘巍1,董肇勇1,钟大辉2,周鉴2,耿长君1,高阳1   

  1. 1. 中国石油吉林石化公司研究院,吉林 吉林 132021;
    2. 中国石油吉林石化公司污水处理厂,吉林 吉林 132021;
  • 收稿日期:2024-12-02 接受日期:2025-11-15 出版日期:2025-12-20 发布日期:2026-01-05
  • 作者简介:刘巍,女,2007 年毕业于中国石油大学(北京)环境工程专业,现在中国石油吉林石化公司研究院从事废水治理技术研究,高级工程师。E-mail: jh_liuw001@petrochina.com.cn

Diagnosis of A/O Process Operational Performance and Recommendations for Optimized Operation

Liu Wei1,Dong Zhaoyong1,Zhong Dahui2,Zhou Jian2,Geng Changjun1,Gao Yang1   

  1. 1. Research Institute of PetroChina Jilin Petrochemical Company, Jilin , Jilin , 132021;
    2. Wastewater Treatment Plant of PetroChina Jilin Petrochemical Company, Jilin , Jilin , 132021.
  • Received:2024-12-02 Accepted:2025-11-15 Online:2025-12-20 Published:2026-01-05

摘要: 针对化工污水处理厂实际运行过程中氨氮处理效率不稳定的问题,运用因果链分析方法对问题深入分析,并通过现场调查、取样、检测确定问题的根本原因,一是二沉池污泥回流不畅,存在污泥死区;二是进水碱度不足影响硝化功能的正常发挥。为解决进水碱度不足问题,开展了调节碱度的药剂筛选及药剂投加量的优化试验,并对 A/O 工艺的优化运行提出了建议。

关键词: 硝化功能提升, 氨氮, 碱度

Abstract: To address unstable ammonia nitrogen treatment efficiency in the actual operation of chemical wastewater treatment plants, causal chain analysis method was applied for in-depth problem diagnosis. On-site investigation, sampling and laboratory testing identified two root causes: one is the inadequate sludge return flow with dead zones in the secondary sedimentation tank, and the other is the insufficient influent alkalinity impairing nitrification function. Meanwhile, to resolve these issues, experiments were conducted to screen alkalinity-adjusting chemicals and optimize their dosage. Recommendations were also proposed for optimizing the operation of the A/O process.

Key words: enhancement of nitrification function, ammonia nitrogen, alkalinity