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郭婷婷, 刘锐平, 易秀, 陈桂霞, 胡承志. 高碱度水库水混凝过程中残留铝控制[J]. 环境工程学报, 2013, 7(3): 836-842.
引用本文: 郭婷婷, 刘锐平, 易秀, 陈桂霞, 胡承志. 高碱度水库水混凝过程中残留铝控制[J]. 环境工程学报, 2013, 7(3): 836-842.
shu
Guo Tingting, Liu Ruiping, Yi Xiu, Chen Guixia, Hu Chengzhi. Control of residual aluminum during coagulation in treatment of reservoir source water with high alkalinity[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 836-842.
Citation: Guo Tingting, Liu Ruiping, Yi Xiu, Chen Guixia, Hu Chengzhi. Control of residual aluminum during coagulation in treatment of reservoir source water with high alkalinity[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 836-842.
shu

高碱度水库水混凝过程中残留铝控制

  • 1.

    中国科学院生态环境研究中心环境水质学国家重点实验室,北京 100085

  • 2.

    长安大学环境科学与工程学院, 西安 710064

  • 3.

    华北水利水电学院环境与市政工程学院,郑州 450011

  • 基金项目:

    国家"水体污染控制与治理"科技重大专项(2009ZX07419-005)

    北京市教育委员会共建项目专项资助

  • 中图分类号: X524

Control of residual aluminum during coagulation in treatment of reservoir source water with high alkalinity

  • 1.

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

  • 2.

    School of Environmental Science & Engineering, Chang’an University,Xi’an 710064, China

  • 3.

    School of Environmental and Civil Engineering, North China University of Water Resources and Electric Power, Zhenzhou 450011, China

  • Fund Project:

摘要

  • 摘要: 针对高碱度水库水源的某水厂残留铝超标问题,选取碱化度(B)与Alb含量不同的3种铝盐絮凝剂,研究不同投量与pH值下混凝效果与残留铝浓度水平。结果表明,碱化度和Alb含量显著影响混凝效果。DOC和浊度的去除率随着3种絮凝剂AlCl3(B=0)、PACl-1(B=1.2)、PACl-2(B=2.2)投量增大而升高。3种絮凝剂投量在1.5~2.0 mg/L(以铝计)范围内,总铝和溶解铝含量最低。对于该水厂自制的絮凝剂PACl-2,可通过降低絮凝剂碱化度,或将水的pH值降低至7~7.5之间,以此可以提高PACl-2混凝效果,而且可以降低出厂水残留铝浓度。考虑工程应用可行性,可优先考虑调整絮凝剂生产工艺。
    Abstract: To minimize the residual aluminum (Al) levels in the effluent of a drinking water treatment plant (DWTP) with reservoirs source water of high alkalinity,the coagulation performances and the residual Al concentrations using three flocculants,with different basicity (B) and Alb content,were investigated under varibale Al doses and pH. The results indicate that the basicity and Alb content significantly affect coagulation behaviors.The removal efficiency of DOC and turbidity increases with elevated doses of AlCl3 (B=0), PACl-1 (B = 1.2), and PACl-2 (B = 2.2). The concentrations of total Al and dissolved Al are the lowest at Al doses of 1.5~2.0 mg/L for three flocculants.As for the PACl-2, which is prepared by this DWTP, both strategies of decreasing the basicity of flocculant and adjusting the solution pH to 7~7.5 are useful to enhance the coagulation performances and to decrease the residual Al levels. Moreover, the adjustment of flocculant preparation is preferred in the future application.
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出版历程
  • 收稿日期:  2012-05-04
  • 刊出日期:  2013-03-18
郭婷婷, 刘锐平, 易秀, 陈桂霞, 胡承志. 高碱度水库水混凝过程中残留铝控制[J]. 环境工程学报, 2013, 7(3): 836-842.
引用本文: 郭婷婷, 刘锐平, 易秀, 陈桂霞, 胡承志. 高碱度水库水混凝过程中残留铝控制[J]. 环境工程学报, 2013, 7(3): 836-842.
shu
Guo Tingting, Liu Ruiping, Yi Xiu, Chen Guixia, Hu Chengzhi. Control of residual aluminum during coagulation in treatment of reservoir source water with high alkalinity[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 836-842.
Citation: Guo Tingting, Liu Ruiping, Yi Xiu, Chen Guixia, Hu Chengzhi. Control of residual aluminum during coagulation in treatment of reservoir source water with high alkalinity[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 836-842.
shu

高碱度水库水混凝过程中残留铝控制

  • 1.  中国科学院生态环境研究中心环境水质学国家重点实验室,北京 100085
  • 2.  长安大学环境科学与工程学院, 西安 710064
  • 3.  华北水利水电学院环境与市政工程学院,郑州 450011
  • 收稿日期:  2012-05-04
基金项目:

国家"水体污染控制与治理"科技重大专项(2009ZX07419-005)

北京市教育委员会共建项目专项资助

摘要: 针对高碱度水库水源的某水厂残留铝超标问题,选取碱化度(B)与Alb含量不同的3种铝盐絮凝剂,研究不同投量与pH值下混凝效果与残留铝浓度水平。结果表明,碱化度和Alb含量显著影响混凝效果。DOC和浊度的去除率随着3种絮凝剂AlCl3(B=0)、PACl-1(B=1.2)、PACl-2(B=2.2)投量增大而升高。3种絮凝剂投量在1.5~2.0 mg/L(以铝计)范围内,总铝和溶解铝含量最低。对于该水厂自制的絮凝剂PACl-2,可通过降低絮凝剂碱化度,或将水的pH值降低至7~7.5之间,以此可以提高PACl-2混凝效果,而且可以降低出厂水残留铝浓度。考虑工程应用可行性,可优先考虑调整絮凝剂生产工艺。

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