A unique recovery system for NaCI (salt) from urine, which consists of electrodialysis (ED) and crystallization processes is proposed. The possibility of the mineral recovery included in urine is shown in a previous report. To improve the purity of the produced salt, pH control is needed as a pretreatment. By controlling pH of the feed solution to about 10, multivalent ions such as Ca2+ and Mg2+ are crystallized as phosphate solids which can be separated by filtration. As well as raising the NaCI purity, this controls scaling b y multivalent ions.


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    Title :

    Mineral Recovery System in a CEEF (2)


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Conference on Environmental Systems ; 1995



    Publication date :

    1995-07-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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