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一体化A/O工艺中溶解氧对脱氮除碳的影响
引用本文:李德豪,凌洪吉,高桂枝,谢文玉,钟华文.一体化A/O工艺中溶解氧对脱氮除碳的影响[J].环境科学与技术,2007,30(11):17-19.
作者姓名:李德豪  凌洪吉  高桂枝  谢文玉  钟华文
作者单位:1. 华东理工大学,上海,200237;茂名学院,茂名,525000
2. 南京信息工程大学,南京,210044;茂名学院,茂名,525000
3. 南京信息工程大学,南京,210044
4. 茂名学院,茂名,525000
摘    要:根据好氧-缺氧生物脱氮的工艺原理,设计了一体化A/O反应器,并就DO对其脱碳、脱氮处理效果的影响进行研究。结果表明,在水力停留时间HRT=12h,进水COD为300mg/L左右时,COD的平均去除率为93%。当好氧区DO在5mg/L左右时,脱氮效率最高,TN去除率达到70%。当好氧区DO为3 ̄4mg/L时,氨氮和总氮的去除可达到动态一致,它们的去除率均在50%~60%之间。

关 键 词:一体化A/O工艺  溶解氧  脱氮
文章编号:1003-6504(2007)11-0017-03
修稿时间:2006-10-18

Effect of Dissolved Oxygen on Nitrogen and Carbon Removal in Integrative A/O Process
LI De-hao,LING Hong-ji,GAO Gui-zhi,XIE Wen-yu,ZHONG Hua-wen.Effect of Dissolved Oxygen on Nitrogen and Carbon Removal in Integrative A/O Process[J].Environmental Science and Technology,2007,30(11):17-19.
Authors:LI De-hao  LING Hong-ji  GAO Gui-zhi  XIE Wen-yu  ZHONG Hua-wen
Abstract:Integrative A/O reactor was designed on the principle of anoxic/oxic(A/O) process, and test was made on the effect of dissolved oxygen on carbon and nitrogen removal efficiency of domestic sewage. Result showed that the average removal rate of COD is 93% when HRT is 12h and influent COD concentration is about 300mg/L. Average removal rate of total nitrogen is 70% when the dissolved oxygen in oxic area is about 5mg/L. Removal rate of ammonia nitrogen and total nitrogen is about 50~60% when the dissolved oxygen in oxic area is about 3~4mg/L.
Keywords:integrative A/O process  dissolved oxygen  denitrogen
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