SHILan-lan,ANYing-yu,LIUWei-yan,et al.Process Design for In?situ Upgrading and Renovating of a Large-scale Sewage Treatment Plant in Luoyang with Uninterrupted Wastewater Treatment[J].China Water & Wastewater,2025,41(16):66-71.
洛阳某大型污水厂不停水原位提标改造工艺设计
- Title:
- Process Design for In?situ Upgrading and Renovating of a Large-scale Sewage Treatment Plant in Luoyang with Uninterrupted Wastewater Treatment
- Keywords:
- sewage treatment plant; in?situ upgrading; renovating; utilization of existing infrastructure; biochemical process
- 摘要:
- 洛阳市某污水处理厂原设计规模为30×104 m3/d，分两期建成，原出水水质执行《城镇污水处理厂污染物排放标准》（GB 18918—2002）一级A标准。为响应项目所在地的出水提标要求，在满足建设期不停水、不降低处理水量与原有排放标准、不新增征地的4项限制条件下，尽可能利旧，对一期MBBR生化工艺和二期两级AO生化工艺进行改造。通过新建部分生物池及优化功能分区布局，实现了出水中有机物、氨氮、总氮、总磷的标准提升。同时，通过合理利用站内有限地块、低影响施工、分步改造实施等措施，保证改造期间不影响污水厂正常生产。项目建成至今，出水水质稳定达到《河南省黄河流域水污染物排放标准》（DB 41/2087—2021）一级标准，对同类项目具有一定的借鉴意义。
- Abstract:
- The original designed capacity of a sewage treatment plant in Luoyang was 30×104 m3/d, and its construction was completed in two phases. The original effluent quality met the first level A limit specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). To meet the requirement for improving effluent quality at the project site, the first-phase MBBR biochemical process and the second-phase two-stage AO biochemical process were renovated to the greatest extent possible to maximize the utilization of existing infrastructure under the constraints of maintaining uninterrupted wastewater treatment during construction, preserving the original treatment capacity and discharge standard, and avoiding new land acquisition. New biological tanks were constructed and the functional zoning layout was optimized to enhance the removal efficiencies of organic matter, ammonia nitrogen, total nitrogen, and total phosphorus in the effluent. Meanwhile, the normal operation of the sewage treatment plant remained unaffected during the renovation period by implementing measures such as the rational utilization of limited plots within the facility, low-impact construction, and phased renovation. Since the project’s completion, the effluent quality has consistently met the first level limit specified in Water Pollutant Discharge Standards for the Yellow River Basin in Henan Province (DB 41/2087-2021), providing a valuable reference for similar projects.
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