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.
Upgrading Case of a Textile Industrial Park WWTP in Shaanxi Province
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第41卷
Number:
第10期
Page:
98-103
Column:
Date of publication:
2025-05-17
- Keywords:
- wastewater treatment; upgrading and reconstruction; BBR process; non-stop production renovation
- 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).
Last Update:
2025-05-17