第42 卷 第6 期
2026 年 3 月
Vol. 42 No. 6
Mar. 2026
中 国 给 水 排 水
CHINA WATER & WASTEWATER
四级A/O+深度处理用于市政污水厂提标改造
叶丽丽， 赵 健， 李 丽， 刘晓瑞， 王昕蕾
（成都市兴蓉环境股份有限公司，四川 成都 610095）
摘 要： 四川省某市政污水处理厂提标改造工程由于用地紧张与改造资金受限，经过方案比
选，确定采用四级A/O+高密度沉淀池+反硝化滤池的深度处理组合工艺，改造后出水COD、NH3-N、
TP、TN 分别降至 8.42、0.14、0.09、4.96 mg/L，较改造前分别降低 41.9%、76.7%、55.0% 和 45.5%，出水
水质稳定达到《四川省岷江、沱江流域水污染物排放标准》（DB51/2311—2016），运行电耗仅为 0.35
kW·h/m3
，实现了污染治理与碳减排的协同优化。实际工程运行效果表明，该组合工艺具有空间集
约、运行稳定、节能高效等优势。
关键词： 四级A/O工艺； 高密度沉淀池； 反硝化滤池； 深度处理； 提标改造
中图分类号：TU992 文献标识码：B 文章编号：1000 - 4602（2026）06 - 0103 - 06
Application of Four‑stage A/O + Advanced Treatment Combined Process in
Upgrading and Reconstruction of Municipal Wastewater Treatment Plant
YE Lili， ZHAO Jian， LI Li， LIU Xiaorui， WANG Xinlei
（Chengdu Xingrong Environment Co. Ltd.， Chengdu 610095， China）
Abstract： Taking the upgrading and reconstruction of a municipal wastewater treatment plant in
Sichuan Province as an example, under the condition of limited land availability and budget restrictions,
the advanced treatment combined process of four‑stage A/O + high density sedimentation tank +
denitrification filter was adopted. After the reconstruction, the effluent concentrations of COD, NH3-N,
TP, and TN were reduced to 8.42 mg/L, 0.14 mg/L, 0.09 mg/L, and 4.96 mg/L, respectively, which were
41.9%, 76.7%, 55.0%, and 45.5% lower than those before the reconstruction. The effluent quality stably
meets the Water Pollution Discharge Standards for Minjiang and Tuojiang River Basins in Sichuan
Province(DB51/2311-2016), with an energy consumption of only 0.35 kW·h/m3
, achieving synergistic
optimization of pollution control and carbon reduction. The operational results show that the combined
process has advantages such as space efficiency, operational stability, energy‑saving and high efficiency.
Keywords： four‑stage A/O process; high density sedimentation tank; denitrification filter;
advanced treatment; upgrading and reconstruction
多级 A/O 工艺基于分段进水脱氮技术，通过串
联设置的缺氧/好氧（A/O）反应单元、污泥全流程回
流及污水多节点分配机制，实现碳源定向分配与逐
级反硝化［1］
。相较于传统活性污泥法，多级 A/O 工
艺在抗负荷冲击、碳源定向分配、同步脱氮除磷效率
及节省工程投资等方面具有显著优势［2-3］
。然而，以
多级A/O为主体的深度处理组合工艺在国内污水处
理领域的工程化应用案例不多［4］
，已投运项目以二
级或三级A/O串联+深度处理为主，四级及以上应用
案例相对有限。
四川省某市政污水处理厂提标改造工程由于用
地紧张与改造资金受限，将现状 A/O+D 型滤池工艺
DOI：10. 19853/j. zgjsps. 1000-4602. 2026. 06. 017
·103·
第 42 卷 第 6 期 中 国 给 水 排 水 www. cnww1985. com
改造为四级A/O+高密度沉淀池+反硝化滤池的深度
处理组合工艺，实现了提标改造目标，可为同类市
政污水处理厂集约化改造提供参考。
1 工程概况及问题分析
该污水处理厂设计处理规模为 10 万 m3
/d，于
2008 年投入运行，主要处理服务范围内的生活污
水，出水水质执行《城镇污水处理厂污染物排放标
准》（GB 18918—2002）的一级A标准，最终排放至沱
江支流。为保护和改善岷江、沱江流域水环境，减
少污染物排放量，确保水资源可持续利用，《四川省
岷江、沱江流域水污染物排放标准》（DB51/2311—
2016）规定了岷江、沱江流域排污单位水污染物的
排放浓度限值。由于该污水处理厂原排放标准已
不满足新标准要求，因此需进行提标改造。
[1]叶丽丽,赵健,李丽,等.四级A/O+深度处理用于市政污水厂提标改造[J].中国给水排水,2026,42(6):103-108.
YELili,ZHAOJian,LILi,et al.Application of Four-stage A/O + Advanced Treatment Combined Process in Upgrading and Reconstruction of Municipal Wastewater Treatment Plant[J].China Water & Wastewater,2026,42(6):103-108.
点击复制
YELili,ZHAOJian,LILi,et al.Application of Four-stage A/O + Advanced Treatment Combined Process in Upgrading and Reconstruction of Municipal Wastewater Treatment Plant[J].China Water & Wastewater,2026,42(6):103-108.
四级A/O+深度处理用于市政污水厂提标改造
中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第42卷 期数: 2026年第6期 页码: 103-108 栏目: 出版日期: 2026-03-17
- Title:
- Application of Four-stage A/O + Advanced Treatment Combined Process in Upgrading and Reconstruction of Municipal Wastewater Treatment Plant
- 作者:
- 叶丽丽， 赵健， 李丽， 刘晓瑞， 王昕蕾
- （成都市兴蓉环境股份有限公司，四川 成都 610095）
- Author(s):
- YE Lili， ZHAO Jian， LI Li， LIU Xiaorui， WANG Xinlei
- （Chengdu Xingrong Environment Co. Ltd.， Chengdu 610095， China）
- Keywords:
- four-stage A/O process; high density sedimentation tank; denitrification filter; advanced treatment; upgrading and reconstruction
- 摘要:
- 四川省某市政污水处理厂提标改造工程由于用地紧张与改造资金受限，经过方案比选，确定采用四级A/O+高密度沉淀池+反硝化滤池的深度处理组合工艺，改造后出水COD、NH3-N、TP、TN分别降至8.42、0.14、0.09、4.96 mg/L，较改造前分别降低41.9%、76.7%、55.0%和45.5%，出水水质稳定达到《四川省岷江、沱江流域水污染物排放标准》（DB51/2311—2016），运行电耗仅为0.35 kW·h/m3，实现了污染治理与碳减排的协同优化。实际工程运行效果表明，该组合工艺具有空间集约、运行稳定、节能高效等优势。
- Abstract:
- Taking the upgrading and reconstruction of a municipal wastewater treatment plant in Sichuan Province as an example, under the condition of limited land availability and budget restrictions, the advanced treatment combined process of four-stage A/O + high density sedimentation tank + denitrification filter was adopted. After the reconstruction, the effluent concentrations of COD, NH3-N, TP, and TN were reduced to 8.42 mg/L, 0.14 mg/L, 0.09 mg/L, and 4.96 mg/L, respectively, which were 41.9%, 76.7%, 55.0%, and 45.5% lower than those before the reconstruction. The effluent quality stably meets the Water Pollution Discharge Standards for Minjiang and Tuojiang River Basins in Sichuan Province(DB51/2311-2016), with an energy consumption of only 0.35 kW·h/m3, achieving synergistic optimization of pollution control and carbon reduction. The operational results show that the combined process has advantages such as space efficiency, operational stability, energy-saving and high efficiency.
相似文献/References:
[1]杨巍,郑佳勇,李 亮,等.三级生物滤池工艺用于污水处理厂提标改造[J].中国给水排水,2022,38(24):87.
YANGWei,ZHENGJia-yong,LI Liang,et al.Application of Three-stage Biofilter Process in Upgrading of a WWTP[J].China Water & Wastewater,2022,38(6):87.
[2]李婧,赵卫兵,袁玺,等.UCT/高密度沉淀池/活性砂滤池工艺用于城镇污水厂[J].中国给水排水,2023,39(14):71.
LIJing,ZHAOWei-bing,YUANXi,et al.Application of UCT/High Density Sedimentation Tank/Active Sand Filter Combined Process in Wastewater Treatment Plant[J].China Water & Wastewater,2023,39(6):71.
[3]陈永飞,马莉,涂康妹.循环冷却水排污水除硬脱盐强化预处理工程实践[J].中国给水排水,2025,41(2):105.
CHENYong-fei,MALi,TUKang-mei.Engineering Practice of Enhanced Pretreatment of Recirculating Cooling Sewage by Dehardening and Desalting[J].China Water & Wastewater,2025,41(6):105.
更新日期/Last Update: 2026-03-17
