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    Process for flocculating colloidal particles by the sequential addition of polymers
    2.
    发明授权
    Process for flocculating colloidal particles by the sequential addition of polymers 失效
    通过聚合物的顺序添加来絮凝胶体颗粒的方法

    公开(公告)号：US3617568A

    公开(公告)日：1971-11-02

    申请号：US3617568D

    申请日：1970-01-02

    Applicant: STANDARD OIL CO

    Inventor： RIES HERMAN E JR

    IPC: C02F1/52 ,  C02F1/54 ,  B01D21/01

    CPC classification number: C02F1/54 ,  C02F1/52

    Abstract: The removal of colloidal particles from a colloidal system is enhanced by sequential addition of two polymeric flocculants in controlled amounts. The first has a polymeric ion form whose charge is opposite that of the colloidal particles and the second has a polymeric ion form whose charge is opposite that of the first polymeric ion. This process is particularly effective in aqueous systems and forms large, strongly bonded flocs of low density which may be readily removed by steps such as filtration or flotation.

    Method and apparatus for removing contaminants from water
    3.
    发明授权
    Method and apparatus for removing contaminants from water 失效
    从水中去除污染物的方法和装置

    公开(公告)号：US3587860A

    公开(公告)日：1971-06-28

    申请号：US3587860D

    申请日：1969-11-07

    Applicant: STANDARD OIL CO

    Inventor： RIES HERMAN E JR ,  GABOR JOSEPH

    IPC: E02B15/04 ,  B01D21/00

    CPC classification number: E02B15/103

    Abstract: A PLURALITY OF COUNTERROTATING DRUMS IN SERIES TO REMOVE MATERIALS FLOATING ON WATER AND MATERIALS DISPERSED IMMEDIATELY BELOW THE SURFACE OF THE WATER, A FIRST DRUM PARTIALLY IMMERSED HAVING A SURFACE OF ORGANOPHILIC MATERIAL, THE DRUM ROTATING IN THE DIRECTION OF FLOW OF THE WATER REMOVES HEAVY VISCOUS CONTAMINANT MATERIALS. ANOTHER DRUM IMMERSED MORE DEEPLY AND LOCATED DOWNSTREAM FROM THE FIRST DRUM HAS A HYDROPHILIC SURFACE MATERIAL AND THE DRUM ROTATES AGAINST THE FLOW OF WATER TO REMOVE LIGHT OILY CONTAMINANT MATERIAL. SCRAPER MEANS CLEAN THE CONTAMINANTS FROM THE SURFACES OF THE DRUMS AND CONTAMINANT REMOVAL MEANS REMOVE THE CONTAMINANTS FROM THE SYSTEM.

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