LIUQiang,ZHANG Lei.Engineering Design of UASB, Two-stage AO, and MBR Process for Treating High Concentration API Wastewater[J].China Water & Wastewater,2023,39(10):139-143.
Engineering Design of UASB, Two-stage AO, and MBR Process for Treating High Concentration API Wastewater
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第10期
Page:
139-143
Column:
Date of publication:
2023-05-17
- Keywords:
- API wastewater; two-stage AO; MBR
- Abstract:
- The treatment capacity of an API wastewater treatment project is 1 500 m3/d. The wastewater is characterized by high TDS, high COD, high TN, low pH, great fluctuation of water quality and quantity. According to the scheme study and small-scale test, the treatment scheme is determined as pH regulation, buffering regulation, UASB, two-stage AO, and MBR. The operation results of the project show that the average removal rates of COD, ammonia nitrogen and total nitrogen are 96.77%, 96.89% and 91.00% respectively. The treated effluent of the system can stably reach and surpass the discharge criteria for draining into municipal sewage pipeline specified in the Integrated Wastewater Discharge Standard (DB 21/1627-2008) of Liaoning Province, and the direct wastewater treatment cost is about 7.42 yuan/m3.
Last Update:
2023-05-17