哈尔滨商业大学学报（自然科学版）2011，Vol.27Issue(4)：566-570,578,6.
A2/O工艺中HRT对系统脱氮除磷效率的影响
Effect of HRT on performance of nitrogen and phosphorus removal by A2/O process
摘要
Abstract
HRT is the key factor which restricts biological nutrients and phosphous removal by A2/O process. This paper discussed on how the HRT affect the removals of nitrogen and phosphorus in synthetic brewage wastewater treatment plant in A2/O process with a working volume of 50 L. The result found that the HRT has less effect of COD removal than that of ammonia nitrogen, TN and TP. The effect reached best when HRT was 8 h. The volume ratio of anaerobic: anoxic: aerobic zone was 1:1:2 and sludge recycle ratio 75% , return ratio of mixed liquor of 200%. The results showed that COD removal needs longer HRT than TN and NH3-N removal, but it was disadvantageous to TP removal when HRT was too long.关键词
污水处理/脱氮除磷/A2/O工艺/水力停留时间Key words
wastewater treatment/ biological nutrients and phosphous removal/ A2/O process/ hydraulic residence time分类
资源环境引用本文复制引用
李永峰,潘欣语,杨建宇..A2/O工艺中HRT对系统脱氮除磷效率的影响[J].哈尔滨商业大学学报（自然科学版）,2011,27(4):566-570,578,6.基金项目
国家863项目(2006AA05Z109) （2006AA05Z109）
上海市重点科技攻关项目(071605122). （071605122）
