ZHANGLu-jing,JIANGLe-yong,PANGHong-tao,et al.Intelligent Design and Operation of a Biofilm Enhanced Multi-stage AO Project[J].China Water & Wastewater,2024,40(18):103-112.
Intelligent Design and Operation of a Biofilm Enhanced Multi-stage AO Project
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第18期
Page:
103-112
Column:
Date of publication:
2024-09-17
- Keywords:
- biofilm enhanced multi-stage AO; process design; ultimate nitrogen removal; nitrogen and phosphorus co-treatment
- Abstract:
- The biofilm enhanced multi-stage AO process is a novel biochemical treatment technology, which has both advantages of step-feed and biofilm. This paper describes the process design idea starting with analyzing the advantage of the process and elaborating the characteristics of step-feed system based on a project application. The inlet, outlet and the water quality data along the biochemical section was monitored. The results of 2-month operation showed that the mean value of ammonia nitrogen, total nitrogen and total phosphorus was 0.3 mg/L, 4.7 mg/L and 0.23 mg/L, respectively, which achieved excellent nitrogen and phosphorus co-treatment performance. At the end of biochemical system, the effluent from the biochemical section reached the standard TN≤5 mg/L. The design and operation of this project provide an engineering demonstration for the ultimate nitrogen removal and nitrogen and phosphorus co-treatment.
Last Update:
2024-09-17