净水技术2017，Vol.36Issue(1)：67-72,6.DOI:10.15890/j.cnki.jsjs.2017.01.013
延长缺氧区水力停留时间提高倒置 AAO／MBR组合工艺的脱氮效果
Effect of Reversed AAO/MBR Combined Processes on Improvement of Denitrification by Prolonging HRT in Anoxic Zone
摘要
Abstract
A pilot scale combined process of reversed AAO/MBR was constructed and proposed to investigate the strengthening effect of nitrogen removal by prolonging hydraulic retention time (HRT)in anoxic zone under condition of insufficient carbon source in municipal wastewater treatment plants. The results indicated that the utilization of slow degradable organic carbon and intracellular carbon by denitrifying bacteria could be strengthened with the prolongation of anoxic zone’s HRT. As a result,the nitrogen removal performance was enhanced. When the HRT of anoxic zone extends from 1. 5 h to 3. 7 h,TN of the effluent could be reduced to 9. 25 ± 2. 13 mg/L. In addition,the combined process had stable CODCr and TP removal ratios of 93. 12% ± 3. 29% and 93. 96% ± 1. 14%, respectively.关键词
倒置AAO/MBR/缺氧区/水力停留时间/强化脱氮/内碳源Key words
reversed AAO/MBR/anoxic zone/hydraulic retention time (HRT)/enhanced denitrification/internal carbon source分类
化学化工引用本文复制引用
朱星,郑晓英,朱宁伟,高雅洁,周橄,周翔..延长缺氧区水力停留时间提高倒置 AAO／MBR组合工艺的脱氮效果[J].净水技术,2017,36(1):67-72,6.基金项目
江苏省水利科技项目（2015027）；中央高校基本科研业务费专项（2015B16414）；国家自然科学基金青年项目 （）
