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  • [发明专利]JP19750112816 _ TOUHOKUDAIGAKU GAKUCHIYOU 1975年09月18日
    PURPOSE:To get solid with smaller exudativeness in a treatment process of radioactive waste fluid by zeolite.
  • 2.
    [发明专利]JP19750097078U _ 1975年07月11日
  • 3.
    [发明专利]JP19750035168U _ 1975年03月15日
  • 4.
    [发明专利]JP19750156426 _ CHUGAI KASEI KK 1975年12月29日
  • 5.
    [发明专利]JP19750118049U _ 1975年08月27日
  • 6.
    [发明专利]JP19750127039U _ 1975年09月16日
  • [发明专利]JP19750042630 _ HITACHI PLANT KENSETSU KK 1975年04月08日
    PURPOSE:To provide an apparatus for removing scum effectively making use of the return of a flight and having less number of functioning parts, and, at the same time, can be produced at a low cost of production.
  • [发明专利]FR19750012846 _ ADKA MATIC WASSER AUFBEREITUNG 1975年04月24日
    In an appts. for effluent treatment, with a feed pipe leading to a flotation chamber from which a clarified effluent discharge pipe leads away, the effluent being treated with flotation media and the resultant floating sludge being carried away from t...
  • 9.
    [发明专利]DE19752532528 _ VERBIESE, S.A., WASQUEHAL, NORD (FRANKREICH) 1975年07月21日
    1520277 Flotation and settling tanks VERBIESE SA 24 July 1975 [31 July 1974] 30921/75 Heading BID A settling or flotation tank has means for controlling the distribution of flow in the tank. The apparatus (Fig. 2) comprises a settling or flotation cha...
  • [发明专利]US19750568847 _ PIELKENROOD-VINITEX B.V. 1975年04月17日
    A compound separation device including at least two separators each comprising a plurality of inclined separation passages defined between inclined corrugated plates or the like, connecting means being provided to interconnect said separators selectiv...
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