XUJia-dong,PENGKong-shu,CHENLi-qing,et al.Commissioning and Operation of a Pharmaceutical Wastewater Treatment Project[J].China Water & Wastewater,2023,39(4):96-100.
Commissioning and Operation of a Pharmaceutical Wastewater Treatment Project
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第4期
Page:
96-100
Column:
Date of publication:
2023-02-17
- Keywords:
- pharmaceutical wastewater; hydrolysis acidification; anaerobic/aerobic treatment; membrane bioreactor
- Abstract:
- According to the characteristics of high concentration COD and ammonia nitrogen in the pharmaceutical wastewater, a set of coagulation sedimentation, two-stage hydrolytic acidification, and anaerobic/aerobic membrane bioreactor treatment facility with capacity of 1 500 m3/d was built. The commissioning of combined process is completed by controlling suitable conditions of sludge inoculation and acclimation, and gradually increasing inflow. The removal rates of COD, ammonia nitrogen, TP, and SS were 97.4%, 99.3%, 43.1%, and 96.4%, respectively. The average concentration of COD, ammonia nitrogen, TP, and SS in the wastewater decreased from 8 171.4 mg/L, 173.7 mg/L, 0.95 mg/L and 235.8 mg/L to 214.6 mg/L, 1.3 mg/L, 0.54 mg/L and 8.6 mg/L, respectively. The value of pH in the wastewater increased from 7.2 to 7.5. The relative standard deviations of effluent COD, ammonia nitrogen, TP, SS and pH were 23.2%, 15.4%, 66.0%, 32.2% and 7.8%, respectively. The effluent quality meets the third level of criteria specified in the Integrated Wastewater Discharge Standard (GB 8978-1996) and the Indirect Discharge for Emission Limitation of Nitrogen and Phosphorus for Industrial Wastewater (DB 33/887-2013), with the direct operating cost of 7.36 yuan/m3．
Last Update:
2023-02-17