SUN Gao-sheng,WANG Dong-dong,YI Fan,et al.Advanced Wastewater Treatment Process with Effluent Quality Meeting Level Quasi Ⅳ Criteria of Surface Water in Huai River Basin[J].China Water & Wastewater,2020,36(19 19):16-23.
Advanced Wastewater Treatment Process with Effluent Quality Meeting Level Quasi Ⅳ Criteria of Surface Water in Huai River Basin
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
19 19
Page:
16-23
Column:
Date of publication:
2020-10-01
- Keywords:
- Huai River basin; wastewater treatment plant; upgrading and reconstruction; level quasi Ⅳ criteria of surface water; A2O/MBR/BAF/O3 combined process
- Abstract:
- Aiming at the upgrading and reconstruction of wastewater treatment plant in Huai River basin of Henan Province, field research on local typical wastewater treatment plants was conducted, and basic characteristics and problems of the current wastewater treatment plants in this basin were analyzed from the aspects of water quality, water quantity and operation. On this basis, a combined process of A2O/MBR/BAF/O3 was designed and developed. Meanwhile, two kinds of typical water quality simulation experiments were conducted to explore the adaptability of the process to different water quality and determine the optimal operating conditions. Under the optimal operating conditions, the combined process had good treatment effect on COD and ammonia nitrogen, and their concentrations in the effluent could meet the level quasi Ⅳ criteria of surface water. When the influent mixed with industrial wastewater, the removal efficiency of TN was more than 80%, and the average concentration of TN in the effluent was less than 10 mg/L, which could meet the level quasi Ⅳ criteria of surface water. However, the effluent TN concentration could not always meet the standard when the influent had higher nitrogen concentration. Therefore, it could be considered to add denitrification filter behind BAF unit.
Last Update:
2020-10-01