31.
    发明专利
    未知

    公开(公告)号:FR2502507A1

    公开(公告)日:1982-10-01

    申请号:FR8105813

    申请日:1981-03-24

    Applicant: DEGREMONT SA

    Inventor: SAVALL VINCENT

    Abstract: This invention provides a method and an apparatus for effecting counter-current mass exchange between two non-miscible phases A and B, for example a liquid phase A and a liquid or solid phase B, circulating in opposite directions from one end to an opposite end of a vertical tower comprising a plurality of superposed chambers in which the first phase A is caused to circulate continuously and the second phase B is caused to circulate discontinuously. One chamber is empty and is adapted to receive the phase B contained in the next chamber thereabove, the two chambers being isolated from any supply of phases A and B. A small fraction of the liquid phase A is diverted for directing continuously this phase to the other chambers of the tower, the thus diverted fraction being introduced into the next chamber above the empty chamber for carrying away the phase B contained in the lower empty chamber, this diverted fraction being reintroduced into the circuit.

    34.
    发明专利
    未知

    公开(公告)号:FR2828116B1

    公开(公告)日:2003-11-14

    申请号:FR0110513

    申请日:2001-08-06

    Abstract: A hollow fibre (10) filter module test procedure transmits (16) sound during normal, stopped or back flushing operational mode, from one side of the filter module membrane in a different band or at a higher level to parasitic noises and detects (14) it emerging from a broken fibre on the other side for comparison with a threshold in the same frequency band. An Independent claim is also included for equipment using the procedure.

    35.
    发明专利
    未知

    公开(公告)号:DE3741012C2

    公开(公告)日:2000-02-10

    申请号:DE3741012

    申请日:1987-12-03

    Applicant: DEGREMONT SA

    Inventor: SAVALL VINCENT

    Abstract: A device designed for being adapted to surround a duct formed with one or several orifices operable for feeding a fluid to an apparatus, such as a reactor, used for the treatment of liquids, notably water, and including a resiliently deformable membrane, also formed with one or several orifices communicating with that or those of the fluid feeding duct, characterized in that it is made of two half shells threaded and clamped onto the fluid inlet duct, one of which having a housing for the resiliently deformable membrane and an orifice for the distribution of the fluid to the apparatus.

    36.
    发明专利
    未知

    公开(公告)号:DE69107522T2

    公开(公告)日:1995-07-27

    申请号:DE69107522

    申请日:1991-06-18

    Applicant: DEGREMONT

    Abstract: Device intended for removing washing water from filters containing granular filter material, which are washed simultaneously with water and air, such as those employed especially in water treatment, and for recovering the particles of granular filter material which are entrained by the water during the washing, characterised in that it comprises: - a calibrated member (11) for collecting and removing dirty water; - internal and external partitions (10,10a - 20,20a) placed on either side of the collecting member, defining inside the internal partitions a water recovery region and, between the internal and external partitions, flow-calming regions promoting the separation, by downward concurrent settling, of the particles of granular material and of the dirty water to be removed, - a baffle (13) intended to prevent the preceding regions being perturbed by the three-phase water-air-granular material mixture formed during the washing, placed under the said regions and directing this mixture towards an external degassing region, where the air is removed before the mixture, having become two-phase, enters the calming/settling regions.

    37.
    发明专利
    未知

    公开(公告)号:DE69107522D1

    公开(公告)日:1995-03-30

    申请号:DE69107522

    申请日:1991-06-18

    Applicant: DEGREMONT

    Abstract: Device intended for removing washing water from filters containing granular filter material, which are washed simultaneously with water and air, such as those employed especially in water treatment, and for recovering the particles of granular filter material which are entrained by the water during the washing, characterised in that it comprises: - a calibrated member (11) for collecting and removing dirty water; - internal and external partitions (10,10a - 20,20a) placed on either side of the collecting member, defining inside the internal partitions a water recovery region and, between the internal and external partitions, flow-calming regions promoting the separation, by downward concurrent settling, of the particles of granular material and of the dirty water to be removed, - a baffle (13) intended to prevent the preceding regions being perturbed by the three-phase water-air-granular material mixture formed during the washing, placed under the said regions and directing this mixture towards an external degassing region, where the air is removed before the mixture, having become two-phase, enters the calming/settling regions.

    38.
    发明专利
    未知

    公开(公告)号:DE69101688D1

    公开(公告)日:1994-05-19

    申请号:DE69101688

    申请日:1991-09-03

    Applicant: DEGREMONT

    Abstract: Improved reactor for the biological treatment of sewage, intended to replace the aeration tank in plants comprising an anaerobic tank in which denitrification takes place, an anaeration tank where the nitrification of the effluents by aerobic bacteria is carried out and a final clarifier, which comprises a single tank having three separate zones which are, in the order in which the liquid to be treated passes through them successively: an aeration operating with plug flow; an anaerobic zone; and a completely mixed zone comprising means permitting it to operate under adjustable aeration conditions.

Patent Agency Ranking