| A~2/O工艺强化反硝化除磷控制策略研究 |
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| 引用本文： | 姚晓园.A~2/O工艺强化反硝化除磷控制策略研究[J].水处理技术,2012,38(3):87-90. |
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| 作者姓名： | 姚晓园 |
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| 作者单位： | 贵州省建筑设计研究院,贵州贵阳,550002 |
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| 摘 要： | 在传统A2/O工艺的基础上,通过设立预缺氧区(即建立A-A2/O工艺)、外加碳源等手段,强化A2/O工艺处理低C/N生活污水的脱氮除磷能力。试验结果表明,经过强化后的A2/O反应器对COD、TN及TP去除效果良好,COD、TN及TP的去除率分别为92%、98%、85%。系统表现出明显的反硝化除磷现象,缺氧区除磷量占总除磷量的17.18%。反硝化除磷现象的产生降低了碳源缺乏对A2/O工艺脱氮除磷性能的影响,提高碳源的利用效率。为采用A2/O工艺处理低C/N生活污水的污水处理厂提供理论依据。
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| 关 键 词： | 低C/N 污水处理 反硝化除磷 |
STUDY ON THE STRATEGIES OF ENHANCING DENITRIFYING PHOSPHORUS REMOVAL IN THE ANAEROBIC-ANOXIC-OXIC PROCESS |
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| Yao Xiaoyuan.STUDY ON THE STRATEGIES OF ENHANCING DENITRIFYING PHOSPHORUS REMOVAL IN THE ANAEROBIC-ANOXIC-OXIC PROCESS[J].Technology of Water Treatment,2012,38(3):87-90. |
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| Authors: | Yao Xiaoyuan |
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| Affiliation: | Yao Xiaoyuan(Architectural Design Research Institute of Guizhou,Guiyang 550002,China) |
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| Abstract: | Based on the conventional anaerobic-anoxic-oxic process,the nutrient removal ability of A2/O process treating low C/N domestic sewage was improved by installing the pre-anoxic zone(forming the pre-anoxic/anaerobic/anoxic/aerobic process),adding the external carbon sources.The results showed that,these strategies enhanced the A2/O reactor removal efficiency of COD,TN and TP,the removal rates of COD,TN and TP reached 92%、98% and 85% respectively.The system showed an obvious denitrifying phosphorus removal phenomenon,the phosphorus removal proportion by the anoxic zone reached up to 17.18% of the total phosphorus removal.The occurrence of denitrifying phosphorus removal decreased the affect of the carbon sources to the A2/O process nutrient removal ability,raising the carbon utilizing efficiency.This paper offered an experience to the waste water treatment plant treating low C/N domestic sewage with the A2/O process. |
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| Keywords: | low C/N wastewater treatment denitrifying phosphorus removal |
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