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SUN Jiaji, FENG Yi, MA Weifang, LI Qingqing, YAN Yulin. Preparation of a new type of forword osmosis draw solution and its application in treatment of concentrated brine[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5020-5028. doi: 10.12030/j.cjee.201610062
Citation: SUN Jiaji, FENG Yi, MA Weifang, LI Qingqing, YAN Yulin. Preparation of a new type of forword osmosis draw solution and its application in treatment of concentrated brine[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5020-5028. doi: 10.12030/j.cjee.201610062
shu

Preparation of a new type of forword osmosis draw solution and its application in treatment of concentrated brine

  • 1.

    College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China

  • 2.

    Beijing Experimental School, Beijing 100037, China

  • Received Date: 15/12/2016
    Accepted Date: 13/10/2016
    Available Online: 26/08/2017
    Fund Project:
  • This paper studied on a new type of forword osmosis draw solution comprised of citric acid magnetic nanoparticles and its application in the treatment of concentrated brine. Three kind of magnetic nanoparticles (MNP0, MNP1 and MNP2) were made with the method of hydrothermal synthesis by controlling the temperature in 30,60 and 90℃. The analysis of the three magnetic nanoparticles characterization showed that their dispersion in the solution increased with the reaction temperature increasing, because the citric acid can be coated onto the surface of the magnetic nanoparticles easily in high temperature. The highest water flux amount was 23 L·(m2·h)-1 in MNP2 draw solution. The decrease amount of water flux was more stable and the reverse salt flux was also smaller for MNP2 compared with the MNP0 and MNP1. The water flux increased with the decreasing of particle size for MNP2, and it is much higher in PRO mode than FO mode.
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Preparation of a new type of forword osmosis draw solution and its application in treatment of concentrated brine

  • Received Date: 15/12/2016
  • Accepted Date: 13/10/2016
  • Available Online: 26/08/2017
Fund Project:

Abstract: This paper studied on a new type of forword osmosis draw solution comprised of citric acid magnetic nanoparticles and its application in the treatment of concentrated brine. Three kind of magnetic nanoparticles (MNP0, MNP1 and MNP2) were made with the method of hydrothermal synthesis by controlling the temperature in 30,60 and 90℃. The analysis of the three magnetic nanoparticles characterization showed that their dispersion in the solution increased with the reaction temperature increasing, because the citric acid can be coated onto the surface of the magnetic nanoparticles easily in high temperature. The highest water flux amount was 23 L·(m2·h)-1 in MNP2 draw solution. The decrease amount of water flux was more stable and the reverse salt flux was also smaller for MNP2 compared with the MNP0 and MNP1. The water flux increased with the decreasing of particle size for MNP2, and it is much higher in PRO mode than FO mode.

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