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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    Titel :

    Mineral Recovery System in a CEEF (2)


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Ashida, Akira (Autor:in) / Yoshioka, Chikako (Autor:in) / Kurokawa, Hideaki (Autor:in) / Nitta, Keiji (Autor:in) / Funabashi, Kiyomi (Autor:in) / Abe, Ryusuke (Autor:in) / Sugawara, Satoshi (Autor:in)

    Kongress:

    International Conference on Environmental Systems ; 1995



    Erscheinungsdatum :

    01.07.1995




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Mineral Recovery System in a CEEF

    Ashida, Akira / Kurokawa, Hideaki / Nitta, Keiji et al. | SAE Technical Papers | 1994


    Mineral Recovery System in a CEEF

    Kurokawa, H. / Funabashi, K. / Sugawara, S. et al. | British Library Conference Proceedings | 1994


    Mineral Recovery System in a CEEF (2)

    Funabashi, K. / Kurokawa, H. / Yoshioka, C. et al. | British Library Conference Proceedings | 1995


    Performance Test Data of Wet Oxidation Plant for CEEF - CEEF: Controlled Ecology Experiment Facilities

    Hattori, Isao / Nitta, Keiji / Hayashi, Kenichiro et al. | SAE Technical Papers | 1996


    Plant Nutrient Solution Production Subsystem and Mineral Recycling in CEEF

    Nitta, Keiji / Otsubo, Koji / Arai, Ryuji et al. | SAE Technical Papers | 2000