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    Home > Food News > Nutrition News > How harmful is industrial waste brine?

    How harmful is industrial waste brine?

    • Last Update: 2022-09-13
    • Source: Internet
    • Author: User
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    The zero-discharge desalination process of industrial wastewater inevitably produces a large amount of concentrated brine


    The concentrated brine treatment technologies adopted in the industry include:

    1.


    (1) Softening of concentrated brine

    The main scaling ions in concentrated brine are: Ca2+, Mg2+, Ba2+, Sr2+.


    (2) Membrane treatment of concentrated brine

    Membrane separation technology is an emerging technology that takes separation membrane as the core to separate, concentrate and purify substances


    2.


    (1) Evaporation pond

    The evaporation of concentrated brine basically uses evaporation ponds for natural evaporation and crystallization at the earliest.


    (2) Evaporative crystallizer

    The evaporative crystallizer mainly refers to the crystallizer that uses various processes to make the solution supersaturated under the production conditions, and then crystallizes out


    With the introduction of various environmental protection regulations, the treatment requirements of industrial wastewater will gradually become higher, and the treatment technology of industrial waste brine will also be continuously improved to contribute to environmental protection


    This article is scientifically checked by Han Sujuan, a senior teacher of the No.


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