高级搜索

分段进水对人工快渗系统脱氮效率的影响

,  ,  ,  ,  , 

downloadPDF

上一篇

下一篇

汪贵和, 方涛, 陈晓国, 唐巍, 朱文涛, 李威. 分段进水对人工快渗系统脱氮效率的影响[J]. 环境工程学报, 2012, 6(11): 3999-4005.
引用本文: 汪贵和, 方涛, 陈晓国, 唐巍, 朱文涛, 李威. 分段进水对人工快渗系统脱氮效率的影响[J]. 环境工程学报, 2012, 6(11): 3999-4005.
shu
Wang Guihe, Fang Tao, Chen Xiaoguo, Tang Wei, Zhu Wentao, Li Wei. Impact of step-feed mode on removal of nitrogen in a constructed rapid infiltration system[J]. Chinese Journal of Environmental Engineering, 2012, 6(11): 3999-4005.
Citation: Wang Guihe, Fang Tao, Chen Xiaoguo, Tang Wei, Zhu Wentao, Li Wei. Impact of step-feed mode on removal of nitrogen in a constructed rapid infiltration system[J]. Chinese Journal of Environmental Engineering, 2012, 6(11): 3999-4005.
shu

分段进水对人工快渗系统脱氮效率的影响

  • 1.

    武汉理工大学 资源与环境工程学院,武汉 430070

  • 2.

    中国科学院水生生物研究所,武汉 430072

  • 基金项目:

    国家"水体污染控制与治理"科技重大专项(2012ZX07103-001)

    广东新高地建设专项工程资助(Y02601-1-401)

  • 中图分类号: X703

Impact of step-feed mode on removal of nitrogen in a constructed rapid infiltration system

  • 1.

    School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China

  • 2.

    Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China

  • Fund Project:

  • 摘要: 为提高人工快速渗滤系统(CRI)的处理效率,研究了分段进水方式下以河砂/钢渣(1#)和河砂/天然沸石(2#)为填料的两个快渗池中氮的垂直分布规律,以及对氨氮、硝酸盐氮、亚硝酸盐氮及总氮四种形态的氮和CODMn的去除效果。结果表明,1#池、2#池采用2∶1的进水比例在表层下600 mm处分段进水对总氮的平均去除率分别为50.90%和45.93%,相对常规进水1#、2#池总氮去除率分别提高12.45%和12.23%,但对氨氮及CODMn的去除率影响较小;1#池、2#池采用1∶1的进水比例在表层下1000 mm处分段进水对总氮的平均去除率分别为47.80%和36.21%,相对常规进水1#、2#池总氮去除率分别提高9.35%和2.51%,但是对氨氮及CODMn的去除率大幅下降。CRI系统中不同形态氮、DO及ORP垂直分布特征显示表层为好氧环境,有利于有机物的分解及硝化作用,底层为缺氧环境,有利于反硝化作用的顺利进行。此外,相对于天然沸石而言钢渣对污染物具有更好的去污效果。本研究表明,选取适当的分段进水位置及进水比例是提高CRI系统对氮的去除率的有效途径。
    Abstract: In order to improve the removal performance of constructed rapid infiltration (CRI) system, two CRI systems were operated with bank sand/steel slag (system 1) or bank sand/zeolite (system 2) as media material, respectively, and the effect of step-feed position and step-feed ratio on the removal efficiencies of nitrogen and CODMn as well as the vertical distribution patterns of nitrogen in them were investigated. The results showed that when the step-feed ratio was 2∶1 and step-feed position was at a depth of 600 mm below the surface, the TN removal efficiencies of system 1 and system 2 reached 50.90% and 45.93%, respectively, increasing by 12.45% and 12.23% compared with the normal flooding pattern, whereas no significant effect was observed for NH3-N and CODMn removal. The TN removal efficiencies of system 1 and system 2 were 47.80% and 36.21%, respectively, increasing only by 9.35% and 2.51% when the step-feed ratio was 1∶1 and the step-feed position was at 1 000 mm depth, and the removal efficiencies of NH3-N and CODMn decreased dramatically. The vertical distribution patterns of different forms of nitrogen, DO and ORP (oxidation-reduction potential) in CRI system suggested that the aerobic conditions in the upper layer favored nitrification and organic matter degradation, while the anoxic conditions in the bottom layer enhanced denitrification. Furthermore, the addition of steel slag was more efficient than zeolite in removing pollutants. These results implied that an improved nitrogen removal can be achieved through optimizing step-feed position and step-feed ratio in the CRI system.
  • 加载中
  • [1] Wang D.,Zhang Z.,Li X.,et al. A full-scale treatment of freeway toll-gate domestic sewage using ecology filter integrated constructed rapid infiltration. Ecological Engineering,2010,36 (6):827-831
    [2] Heistad A.,Paruch A. M.,Vrale L.,et al. A high-performance compact filter system treating domestic wastewater. Ecological Engineering,2006,28 (4):374-379
    [3] Zhang J.,Huang X.,Liu C.,et al. Nitrogen removal enhanced by intermittent operation in a subsurface wastewater infiltration system. Ecological Engineering,2005,25 (4):419-428
    [4] Wang X.,Sun T.,Li H.,et al. Nitrogen removal enhanced by shunt distributing wastewater in a subsurface wastewater infiltration system. Ecological Engineering,2010,36 (10):1433-1438
    [5] 王伟,彭永臻,殷芳芳,等. 改进分段进水 A/O 生物脱氮工艺强化生物除磷. 环境科学,2009,30 (10):2968-2974 Wang wei,Peng Yongzhen,Yin Fangfang,et al. Modified step-feed A/O biological nitrogen removal process for enhanced phosphorus removal. Environmental Science,2009,30 (10):2968-2974(in Chinese)
    [6] 王佳伟,郑江,周军,等. 基于碳源需求的 A2/O 工艺分段进水研究. 中国给水排水,2010,26 (11):47-50 Wang Jiawei,Zheng jiang,Zhou jun,et al. Step-feed in A2/O process based on carbon source demand. China Water & Wastewater,2010,26 (11):47-50(in Chinese)
    [7] 朱文涛,司马小峰,余林鹏,等. 新型人工快速渗滤系统处理村镇污水工艺参数优化. 环境工程学报,2012,6 (5):1459-1466 Zhu Wentao,Sima Xiaofeng,Yu Linpeng,et al. Optimizing operational parameters of new constructed rapid infiltration system in villages and towns wastewater treatment. Chinese Journal of Environmental Engineering,2012,6 (5):1459-1466 (in Chinese)
    [8] 国家环境保护总局. 水和废水监测分析方法(第4版). 北京:中国环境科学出版社,2002
    [9] Schaub S. A.,Sorber C. A. Virus and bacteria removal from wastewater by rapid infiltration through soil. Applied and Environmental Microbiology,1977,33 (3):609-619
    [10] 谢宇轩,康爱彬,李明,等. 三级人工快渗系统脱氮效果及菌种分布分析. 环境工程学报,2010,4 (6):1271-1275 Xie Yuxuan,Kang Aibin,Li Ming,et al. Analysis of denitrification and distribution of microbial strain in three stages constructed rapid infiltration system,Chinese Journal of Environmental Engineering,2010,4 (6):1271-1275(in Chinese)
    [11] 王禄,喻志平,赵智杰. 人工快速渗滤系统氨氮去除机理. 中国环境科学,2006,26 (4):500-504 Wang Lu,Yu Zhiping,Zhao Zhijie. The removal mechanism of ammoniac nitrogen in constructed rapid infiltration system. China Environmental Science,2006,26 (4):500-504(in Chinese)
    [12] Cho K. W.,Song K. G.,Cho J. W.,et al. Removal of nitrogen by a layered soil infiltration system during intermittent storm events. Chemosphere,2009,76 (5):690-696
    [13] Lei X.,Fujimaki H.,Lu Y.,et al. Ammonia removal from pretreated methane fermentation effluent through a soil trench system: A column experiment. Chemosphere,2007,66 (11):2077-2086
    [14] Yamaguchi T.,Moldrup P.,Rolston D.,et al. Nitrification in porous media during rapid, unsaturated water flow. Water Research,1996,30 (3):531-540
    [15] Albuquerque A.,Oliveira J.,Semitela S.,et al. Influence of bed media characteristics on ammonia and nitrate removal in shallow horizontal subsurface flow constructed wetlands. Bioresource Technology,2009,100 (24):6269-6277
    [16] Zou J.,Dai Y.,Sun T.,et al. Effect of amended soil and hydraulic load on enhanced biological nitrogen removal in lab-scale SWIS. Journal of Hazardous Materials,2009,163 (2-3):816-822
    [17] Li Y.,Li H.,Sun T.,et al. Study on nitrogen removal enhanced by shunt distributing wastewater in a constructed subsurface infiltration system under intermittent operation mode. Journal of Hazardous Materials,2011,189 (1-2):336-341
    [18] 刘家宝,杨小毛,王波,等. 改进型人工快渗系统处理污染河水中试. 中国给水排水,2006,22 (13):14-17 Liu Jiabao,Yang Xiaomao,Wang Bo,et al. Pilot-scale study on improved constructed rapid infiltration system for polluted river water treatment. China Water & Wastewater,2006,22 (13):14-17(in Chinese)
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  2029
  • HTML全文浏览数:  990
  • PDF下载数:  1708
  • 施引文献:  0
出版历程
  • 收稿日期:  2012-02-23
  • 刊出日期:  2012-11-09
汪贵和, 方涛, 陈晓国, 唐巍, 朱文涛, 李威. 分段进水对人工快渗系统脱氮效率的影响[J]. 环境工程学报, 2012, 6(11): 3999-4005.
引用本文: 汪贵和, 方涛, 陈晓国, 唐巍, 朱文涛, 李威. 分段进水对人工快渗系统脱氮效率的影响[J]. 环境工程学报, 2012, 6(11): 3999-4005.
shu
Wang Guihe, Fang Tao, Chen Xiaoguo, Tang Wei, Zhu Wentao, Li Wei. Impact of step-feed mode on removal of nitrogen in a constructed rapid infiltration system[J]. Chinese Journal of Environmental Engineering, 2012, 6(11): 3999-4005.
Citation: Wang Guihe, Fang Tao, Chen Xiaoguo, Tang Wei, Zhu Wentao, Li Wei. Impact of step-feed mode on removal of nitrogen in a constructed rapid infiltration system[J]. Chinese Journal of Environmental Engineering, 2012, 6(11): 3999-4005.
shu

分段进水对人工快渗系统脱氮效率的影响

  • 1. 武汉理工大学 资源与环境工程学院,武汉 430070
  • 2. 中国科学院水生生物研究所,武汉 430072
  • 收稿日期:  2012-02-23
基金项目:

国家"水体污染控制与治理"科技重大专项(2012ZX07103-001)

广东新高地建设专项工程资助(Y02601-1-401)

摘要: 为提高人工快速渗滤系统(CRI)的处理效率,研究了分段进水方式下以河砂/钢渣(1#)和河砂/天然沸石(2#)为填料的两个快渗池中氮的垂直分布规律,以及对氨氮、硝酸盐氮、亚硝酸盐氮及总氮四种形态的氮和CODMn的去除效果。结果表明,1#池、2#池采用2∶1的进水比例在表层下600 mm处分段进水对总氮的平均去除率分别为50.90%和45.93%,相对常规进水1#、2#池总氮去除率分别提高12.45%和12.23%,但对氨氮及CODMn的去除率影响较小;1#池、2#池采用1∶1的进水比例在表层下1000 mm处分段进水对总氮的平均去除率分别为47.80%和36.21%,相对常规进水1#、2#池总氮去除率分别提高9.35%和2.51%,但是对氨氮及CODMn的去除率大幅下降。CRI系统中不同形态氮、DO及ORP垂直分布特征显示表层为好氧环境,有利于有机物的分解及硝化作用,底层为缺氧环境,有利于反硝化作用的顺利进行。此外,相对于天然沸石而言钢渣对污染物具有更好的去污效果。本研究表明,选取适当的分段进水位置及进水比例是提高CRI系统对氮的去除率的有效途径。

English Abstract

    全文HTML

参考文献 (18)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心