Showing 1 - 5 results of 5 for search 'Directo, Leon S.', query time: 0.02s Refine Results
  1. 1
    Independent physical-chemical treatment of raw sewage /

    Independent physical-chemical treatment of raw sewage / by Directo, Leon S.

    Published 1977
    Government Document Book
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  2. 2
    Two-stage granular activated carbon treatment /

    Two-stage granular activated carbon treatment / by Directo, Leon S.

    Published 1978
    Government Document Book
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  3. 3
    Effect of pretreatment on the filtration of low turbidity secondary effluent /

    Effect of pretreatment on the filtration of low turbidity secondary effluent / by Directo, Leon S.

    Published 1980
    Government Document Book
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  4. 4
    Carbon reactivation by externally-fired rotary kiln furnace /

    Carbon reactivation by externally-fired rotary kiln furnace / by Zhen, Jinglin

    Published 1980
    Other Authors: “…Directo, Leon S.…”
    Government Document Book
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  5. 5
    Standardized procedure for evaluation of toxic effects on activated sludge /

    Standardized procedure for evaluation of toxic effects on activated sludge / by Moulton, Edward Quentin

    Published 1962
    Other Authors: “…Directo, Leon S.…”
    Search for the full-text version of this title in HathiTrust
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