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  1. Article ; Online: Preparation and Boron Removal Performance of Glycidol Modified PANI Nanorods: An Optimization Study Based on Response Surface Methodology.

    Le, Yunlong / Guan, Yunshan / Ma, Xiaoying / Zhang, Weidong

    Polymers

    2023  Volume 15, Issue 2

    Abstract: Boron removal from aqueous solutions has attracted increasing attention, offering benefits for animal and plant health as well as profound significance for exploiting Salt Lake boron resources. In this work, we synthesized novel glycidol-functionalized ... ...

    Abstract Boron removal from aqueous solutions has attracted increasing attention, offering benefits for animal and plant health as well as profound significance for exploiting Salt Lake boron resources. In this work, we synthesized novel glycidol-functionalized and hydrophilic polyaniline (PANI) nanorod adsorbents, which were prepared to separate boron compounds from boric acid aqueous solutions. The as-prepared adsorbents were significantly different from the traditional polymers' grafting reaction because they had a higher functional yield and more active position for adsorption. The maximum adsorption capacity (0.2210 mmoL∙g
    Language English
    Publishing date 2023-01-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym15020459
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Treatment of high salinity brines by direct contact membrane distillation: Effect of membrane characteristics and salinity.

    Li, Jianfeng / Guan, Yunshan / Cheng, Fangqin / Liu, Yu

    Chemosphere

    2015  Volume 140, Page(s) 143–149

    Abstract: Direct contact membrane distillation (DCMD) is one of the attractive technologies for high salinity brine treatment. In this study, four polytetrafluoroethylene (PTFE) membranes were examined in treating highly concentrated salt solutions. Results showed ...

    Abstract Direct contact membrane distillation (DCMD) is one of the attractive technologies for high salinity brine treatment. In this study, four polytetrafluoroethylene (PTFE) membranes were examined in treating highly concentrated salt solutions. Results showed that non-supported membranes generally have a higher overall mass transfer coefficient but porosity seems to be the most important parameter controlling membrane flux and thermal efficiency. Supported membranes with large thickness had relatively higher thermal efficiency than small thickness. This can be attributed to their reduced heat loss through heat condition. In addition, KCl, NaCl and MgCl2 solutions showed distinct trends over flux decline at high salt concentrations (⩾2.0M). The difference in flux was largely due to the discrepancy in water activities of these solutions (KCl>NaCl>MgCl2). However, the effect of viscosity on permeate flux could not be neglected for MgCl2 at high salt concentrations as the suddenly increased viscosity could lead to serious temperature polarization. This study indicates that membrane distillation is a promising technology for high salinity brine treatment.
    MeSH term(s) Distillation ; Membranes, Artificial ; Porosity ; Salinity ; Salts/chemistry ; Solutions ; Temperature ; Water Pollutants, Chemical/chemistry ; Water Purification/methods
    Chemical Substances Membranes, Artificial ; Salts ; Solutions ; Water Pollutants, Chemical ; brine
    Language English
    Publishing date 2015-12
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2014.12.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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