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基于海水和盐田水的正渗透驱动液

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张高旗, 刘海宁, 张凯松. 基于海水和盐田水的正渗透驱动液[J]. 环境工程学报, 2014, 8(8): 3309-3314.
引用本文: 张高旗, 刘海宁, 张凯松. 基于海水和盐田水的正渗透驱动液[J]. 环境工程学报, 2014, 8(8): 3309-3314.
shu
Zhang Gaoqi, Liu Haining, Zhang Kaisong. Draw solution in forward osmosis based on seawater and saltern brine water[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3309-3314.
Citation: Zhang Gaoqi, Liu Haining, Zhang Kaisong. Draw solution in forward osmosis based on seawater and saltern brine water[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3309-3314.
shu

基于海水和盐田水的正渗透驱动液

  • 1.

    中国科学院城市环境研究所, 厦门 361021

  • 基金项目:

    厦门对台科技合作项目

  • 中图分类号: TQ028.8

Draw solution in forward osmosis based on seawater and saltern brine water

  • 1.

    Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China

  • Fund Project:

  • 摘要: 采用海水和盐田水作为驱动液，研究正渗透过程中的通量变化和膜污染特征，探索其作为驱动液的可行性。结果表明，海水和盐田水含有大量的盐离子，具有高的渗透压，海水、2#、5#和9#盐田水与0.42、0.8、2.2和4.2 mol/L的氯化钠具有同样的通量行为。随海水和盐田水浓度增加，通量增加，同时污染也越严重。扫描电子显微镜观察和荧光光谱分析发现，盐田水中的硅酸盐和有机物会沉积在膜表面，引起比较严重的膜污染，尤其是高浓度的盐田水。海水和盐田水作为正渗透过程中的驱动液需要进行一定的预处理。
    Abstract: Seawater and saltern brine water were used as draw solutions in forward osmosis, and the flux behavior and membrane fouling of FO water were studied. Seawater and brine water contain large amount of salts which would generate high osmotic pressure. Using seawater, 2#, 5# and 9# brine water as draw solutions could achieve identical flux behaviors with 0.42, 0.8, 2.2, 4.2 mol/L NaCl solution. With the increase of brine water concentration, flux became larger, and also the extent of membrane fouling. From the SEM-EDX observation and EEM dialysis, the silicate and organic matters in the brine water may deposit on the membrane surface and cause severe membrane fouling, especial for brine water with high concentration. Seawater and brine water are potential to be used as draw solution in FO which need pretreatment.
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出版历程
  • 收稿日期:  2013-09-26
  • 刊出日期:  2014-07-31
张高旗, 刘海宁, 张凯松. 基于海水和盐田水的正渗透驱动液[J]. 环境工程学报, 2014, 8(8): 3309-3314.
引用本文: 张高旗, 刘海宁, 张凯松. 基于海水和盐田水的正渗透驱动液[J]. 环境工程学报, 2014, 8(8): 3309-3314.
shu
Zhang Gaoqi, Liu Haining, Zhang Kaisong. Draw solution in forward osmosis based on seawater and saltern brine water[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3309-3314.
Citation: Zhang Gaoqi, Liu Haining, Zhang Kaisong. Draw solution in forward osmosis based on seawater and saltern brine water[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3309-3314.
shu

基于海水和盐田水的正渗透驱动液

  • 1. 中国科学院城市环境研究所, 厦门 361021
  • 收稿日期:  2013-09-26
基金项目:

厦门对台科技合作项目

摘要: 采用海水和盐田水作为驱动液，研究正渗透过程中的通量变化和膜污染特征，探索其作为驱动液的可行性。结果表明，海水和盐田水含有大量的盐离子，具有高的渗透压，海水、2#、5#和9#盐田水与0.42、0.8、2.2和4.2 mol/L的氯化钠具有同样的通量行为。随海水和盐田水浓度增加，通量增加，同时污染也越严重。扫描电子显微镜观察和荧光光谱分析发现，盐田水中的硅酸盐和有机物会沉积在膜表面，引起比较严重的膜污染，尤其是高浓度的盐田水。海水和盐田水作为正渗透过程中的驱动液需要进行一定的预处理。

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