[1]刘可,王雪,戴仲怡,等.大池深多段AO+双层沉淀工艺用于大型半地下污水厂[J].中国给水排水,2025,41(20):106-112.
　LIUKe,WANGXue,DAIZhong-yi,et al.Application of Large-deep Multi-stage AO Processes and Double-deck Sedimentation Tank in a Large-scale Semi-underground WWTP[J].China Water & Wastewater,2025,41(20):106-112.
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大池深多段AO+双层沉淀工艺用于大型半地下污水厂

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第20期 页码: 106-112 栏目: 出版日期: 2025-10-17
Title:
Application of Large-deep Multi-stage AO Processes and Double-deck Sedimentation Tank in a Large-scale Semi-underground WWTP
作者:
刘可1， 王雪1， 戴仲怡1， 曾晓琛2， 王宇婷1
（1.中国市政工程中南设计研究总院有限公司，湖北 武汉 430010；2.深圳市环水启航水质净化有限公司，广东 深圳 518030）
Author(s):
LIU　Ke1， WANG　Xue1， DAI　Zhong-yi1， ZENG　Xiao-chen2， WANG　Yu-ting1
（1. Central & Southern China Municipal Engineering Design & Research General Institute Co. Ltd.， Wuhan 430010， China； 2. Shenzhen Huanshui Qihang Water Purification Co. Ltd.， Shenzhen 518030， China）
关键词:
半地下式污水厂;  多段AO工艺;  深度处理;  大池深生化池;  双层平流沉淀池;  低C/N;  脱氮
Keywords:
semi?underground wastewater treatment plant;  multi-stage AO process;  advanced treatment;  large-deep bioreactor;  double-deck horizontal flow sedimentation tank;  low C/N;  nitrogen removal
摘要:
沙井水质净化厂三期设计规模为20×104 m3/d，出水水质执行深圳市《水质净化厂出水水质规范》（DB4403/T 64—2020）表1中的B标准。为减少“邻避”效应，污水厂采用双层加盖半地下结构形式建设，上盖建设市政公园。针对该项目用地紧张、进水碳源不足、出水TN指标要求高的特点，污水二级处理采用大池深多段AO生化池+双层平流沉淀池组合工艺，在集约用地的同时保留了多段AO工艺原水碳源利用率高、脱氮效果好的优势，单位用地指标为0.31 m2/（m3·d-1）。该项目通水运行至今，系统运行稳定，出水水质全面优于设计排放标准。在进水TN平均为40.1 mg/L、C/N=1.62、月均乙酸钠（20%）投加量为43.5 mg/L的条件下，可保证出水TN稳定在10 mg/L以下。
Abstract:
The design capacity of Shajing wastewater treatment plant (WWTP) phase Ⅲ project is 20×104 m3/d, and the effluent quality should comply with the level B criteria specified in the Standards of Water Quality for Wastewater Treatment Plant (DB4403/T 64-2020). To reduce the NIMBY (Not in my back yard) effect, the WWTP is constructed in a double-layer semi-underground structure, and a municipal park is built on the top. In view of the shortage of land, insufficient carbon sources and high TN requirements for effluent, the secondary wastewater treatment process adopts the combined process of large-deep multi-stage AO bioreactor and double-deck horizontal flow sedimentation tank, which retains the advantages of high utilization rate of raw water carbon sources and high nitrogen removal rate of multi-stage AO process while intensive land use, with a unit land use index of 0.31 m2/(m3·d-1). Since the project is commissioned, the system has been running stably, and the effluent quality is superior to the discharge standard. With influent TN of 40.1 mg/L and C/N of 1.62, the average monthly sodium acetate (20%) dosage is 43.5 mg/L and the effluent TN can be stably less than 10 mg/L.

相似文献/References:

[1]古凌艳,黄文章,王维康,等.AOA与多段AO工艺生物脱氮除磷性能的比较[J].中国给水排水,2024,40(7):1.
　GULing-yan,HUANGWen-zhang,WANGWei-kang,et al.Comparison on the Simultaneous Biological Nitrogen and Phosphorus Removal Performance between Pilot-scale Plant with AOA Process and Full-scale Plant with Mult-stage AO Process[J].China Water & Wastewater,2024,40(20):1.

更新日期/Last Update: 2025-10-17