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  1. 1
    Wastewater demineralization by continuous counter-current ion exchange process /

    Wastewater demineralization by continuous counter-current ion exchange process / by Zhen, Jinglin

    Published 1977
    Subjects:
    Government Document Book
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  2. 2
    Demineralization of sand-filtered secondary effluent by spiral-wound reverse osmosis process /

    Demineralization of sand-filtered secondary effluent by spiral-wound reverse osmosis process / by Zhen, Jinglin

    Published 1977
    Subjects:
    Government Document Book
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  3. 3
    Wastewater demineralization by two-stage fixed-bed ion exchange process /

    Wastewater demineralization by two-stage fixed-bed ion exchange process / by Zhen, Jinglin

    Published 1977
    Subjects:
    Government Document Book
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  4. 4
    Pilot plant evaluation of alternative activated sludge systems /

    Pilot plant evaluation of alternative activated sludge systems / by Heidman, James A.

    Published 1977
    Subjects:
    Government Document Book
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  5. 5
    Downflow granular filtration of activated sludge effluents /

    Downflow granular filtration of activated sludge effluents / by Bowker, Robert P. G.

    Published 1977
    Subjects:
    Government Document Book
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