[1]张淼,彭永臻,王聪,等.容积分配比对A2/O-生物接触氧化工艺反硝化除磷特性的影响[J].东南大学学报(自然科学版),2015,45(3):531-538.[doi:10.3969/j.issn.1001-0505.2015.03.021]
 Zhang Miao,Peng Yongzhen,Wang Cong,et al.Effect on denitrifying phosphorus removal by optimizing volume ratios in A2/O-biological contact oxidation(A2/O-BCO)process[J].Journal of Southeast University (Natural Science Edition),2015,45(3):531-538.[doi:10.3969/j.issn.1001-0505.2015.03.021]
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容积分配比对A2/O-生物接触氧化工艺反硝化除磷特性的影响()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
45
期数:
2015年第3期
页码:
531-538
栏目:
环境科学与工程
出版日期:
2015-05-20

文章信息/Info

Title:
Effect on denitrifying phosphorus removal by optimizing volume ratios in A2/O-biological contact oxidation(A2/O-BCO)process
作者:
张淼1彭永臻1王聪1汪传新1薛晓飞2庞洪涛2曾薇1
1北京工业大学北京市水质科学与水环境恢复工程重点实验室, 北京 100124; 2北京北控水务(中国)投资有限公司, 北京 100124
Author(s):
Zhang Miao1 Peng Yongzhen1 Wang Cong1 Wang Chuanxin1Xue Xiaofei2 Pang Hongtao2 Zeng Wei1
1Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China
2Beijing Enterprises Water Group(China)Investment Limited, Beijing 100124, China
关键词:
A2/O-生物接触氧化 反硝化除磷 容积分配比 同步硝化反硝化 荧光原位杂交
Keywords:
anaerobic anoxic oxic-biological contact oxidation(A2/O-BCO) denitrifying phosphorus removal volume ratio simultaneous nitrification denitrification(SND) fluorescence in situ hybridization(FISH)
分类号:
X703.1
DOI:
10.3969/j.issn.1001-0505.2015.03.021
摘要:
提出了一种新型的A2/O-生物接触氧化(A2/O-BCO)双污泥系统.该工艺通过在A2/O反应器中充分利用原水碳源,以BCO反应器完成硝化的NO-xx-N为电子受体,实现稳定高效的反硝化除磷.考察了实际生活污水在A2/O反应器中不同容积分配比(厌氧/缺氧/好氧)对A2/O-BCO系统反硝化除磷特性的影响.结果表明:系统对有机物的去除具有较好的稳定性,且容积比的变化对COD的去除率影响不大;当容积比为2∶4∶1时,系统达到了较高的脱氮除磷效果,出水的TN和PO3-4-P浓度分别为13.41和0.28 mg/L.通过氮平衡分析发现,BCO反应器存在同步硝化反硝化现象,同时厌氧氨氧化的发生也促进了氮损失.此外,A2/O反应器的好氧区对稳定出水PO3-4-P浓度发挥着重要作用,为了防止二次释磷,中间沉淀池的NO-xx-N浓度应控制在1.95~2.75 mg/L.
Abstract:
A novel two-sludge process of A2/O-biological contact oxidation(A2/O-BCO)is proposed. Stable and efficient denitrifying phosphorus removal can be realized by high-efficiency utilization of influent carbon sources in the A2/O reactor with the electron acceptors of NO-xx-N in the BCO reactor. The denitrifying phosphorus removal characteristics of the A2/O reactor under different volume ratios(anaerobic zone/ anoxic zone/ aerobic zone)with real domestic wastewater were investigated. The results show that the system exhibits good stability for organic matter removal, and the variation of the volume ratios has little effect on COD(chemical oxygen demand)removal. When the volume ratio is 2∶4∶1, the effect of nitrogen and phosphorus removal is high, the effluent TN and PO3-4-P concentrations being 13.41 and 0.28 mg/L respectively. The nitrogen balance analysis results show that the phenomenon of simultaneous nitrification denitrification(SND)exhibits in the BCO reactor, and the occurrence of anaerobic ammonia oxidation(Annamox)contributes to the nitrogen loss. Additionally, the aerobic zone of the A2/O reactor plays an important role in keeping stable effluent PO3-4-P concentration. In order to prevent secondary phosphorus release, the NO-xx-N concentration in the middle settler should be controlled to 1.95 to 2.75 mg/L.

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备注/Memo

备注/Memo:
收稿日期: 2014-10-25.
作者简介: 张淼(1989—),女,博士生;彭永臻(联系人),男,博士,教授,博士生导师,pyz@bjut.edu.cn.
基金项目: 国家高技术研究发展计划(863计划)资助项目(2012AA063406)、北京市科研基地建设-科技创新平台资助项目、北京工业大学第十三届研究生科技基金资助项目(ykj-2014-10614).
引用本文: 张淼,彭永臻,王聪,等.容积分配比对A2/O-生物接触氧化工艺反硝化除磷特性的影响[J].东南大学学报:自然科学版,2015,45(3):531-538. [doi:10.3969/j.issn.1001-0505.2015.03.021]
更新日期/Last Update: 2015-05-20