ZHANGPeng-hui,LEIHai-dong,KONGHai-xia.Upgrading Case of a Textile Industrial Park WWTP in Shaanxi Province[J].China Water & Wastewater,2025,41(10):98-103.
陕西省某纺织工业园区污水处理厂提标改造工程实例
- Title:
- Upgrading Case of a Textile Industrial Park WWTP in Shaanxi Province
- Keywords:
- wastewater treatment; upgrading and reconstruction; BBR process; non-stop production renovation
- 摘要:
- 陕西省某纺织工业园区污水处理厂一期设计规模为4×104 m3/d，采用预处理+混合池+BBR装置+BBR曝气池+二沉池处理工艺。现状BBR曝气池停留时间较短，二沉池负荷偏高，且缺少深度处理工艺。在有限的用地条件下，为满足提标水质要求，本次提标改造扩建混合池、BBR曝气池及二沉池，新建磁混凝沉淀池及臭氧接触氧化池深度处理设施，同时改造加药间及鼓风机房，以保证各处理单元对污染物的有效去除。通过枯水期构筑物的池容调蓄、增加临时管道及控制阀门，实现了不停产改造。该项目建成后运行良好，出水水质稳定达到《陕西省黄河流域污水综合排放标准》（DB 61/224—2018）的A标准。
- Abstract:
- The first phase of the WWTP in a textile industrial park in Shaanxi Province has the capacity of 4×104 m3/d, adopting the process of pre-treatment, mixed tank, baffled bioreactor (BBR) device, BBR aeration tank, and secondary sedimentation tank. The BBR aeration tank had short retention time, the secondary sedimentation tank had high load, and there was a lack of advanced treatment process. In order to meet the water quality requirements for upgrading, under the condition of limited land, the mixed tank, BBR aeration tank, and secondary sedimentation tank are expanded. A new magnetic coagulation process, and an ozone contact oxidation tank for advanced treatment facilities are built. Meanwhile, the dosing room and the air blower room are renovated to ensure the effective removal of pollutants by each treatment unit. The non-stop production renovation is achieved through the regulation and storage of the tank capacity of the structures during the dry season, the addition of temporary pipelines and control valves. The project operates well after completion, and the effluent quality stably reaches level A criteria in the Integrated Wastewater Discharge Standard of Yellow River Basin in Shaanxi Province (DB 61/224-2018).
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