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    WATER TREATMENT PLANT AND CORRESPONDING METHOD
    3.
    发明申请
    WATER TREATMENT PLANT AND CORRESPONDING METHOD 审中-公开

    公开(公告)号：US20200155972A1

    公开(公告)日：2020-05-21

    申请号：US16628772

    申请日：2018-06-25

    申请人： Veolia Water Solutions & Technologies Support

    发明人： Abdelkader GAID ,  Hervé PAILLARD ,  Philippe SAUVIGNET

    IPC分类号： B01D21/01 ,  B01D21/00 ,  B01D21/08 ,  B01D21/24 ,  C02F1/52

    摘要： The invention relates to a water treatment plant which comprises means (38) for supplying the water to be treated, means (31) for supplying coagulant reagent (21), a flocculation-decantation device (1) which has means (32) for dispensing the flocculant reagent, means (33) for distributing ballast, means (39d) for extracting decantation sludge and means (9) for discharging water that has been treated, a line (8) for supplying coagulated water to the flocculation-decantation device (1), means (24) for separating the ballast contained in the ballasted sludge followed by means (36) for recycling the ballast back into said flocculation-decantation device (1), characterised in that said device (1) comprises an outer tank (2) that has a first hopper (4), and at least one inner tank (3) that has a second hopper (5) and is arranged inside said outer tank (2); the inner tank (3) receiving the flocculant and the ballast and comprising stirring means (10), wherein a peripheral space is disposed between the inner tank (3) and the outer tank (2); the second hopper (5) having an opening (6) which opens into the first hopper (4); and said first hopper (4) having an outlet that communicates with the means (34) for discharging ballasted sludge, wherein the means (9) for discharging water that has been treated are disposed in the upper portion of said outer tank (2). The invention also relates to a method for implementing a plant of this types.

    WATER TREATMENT PROCESS EMPLOYING DISSOLVED AIR FLOTATION TO REMOVE SUSPENDED SOLIDS
    4.
    发明申请
    WATER TREATMENT PROCESS EMPLOYING DISSOLVED AIR FLOTATION TO REMOVE SUSPENDED SOLIDS 审中-公开

    公开(公告)号：US20170297924A1

    公开(公告)日：2017-10-19

    申请号：US15516037

    申请日：2015-09-29

    申请人： VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT

    发明人： Abdelkader GAID ,  Malik DJAFER ,  Delia PASTORELLI

    IPC分类号： C02F1/24 ,  C02F1/56 ,  C02F3/08 ,  C02F1/52 ,  C02F101/10

    摘要： A water or wastewater treatment process that includes a dissolved air flotation process for removing suspended solids from influent water or mixed liquor. In one process, the dissolved air flotation process is carried out in the absence of adding a co-agulant or a flocculant, but yet produces TSS removal efficiencies comparable to those achieved by conventional dissolved air flotation processes that employ a coagulant and a flocculant. In other processes, a coagulant and/or a flocculant is added directly to the mixing zone of a dissolved air flotation system or is added via a pressurized white water injection system. In another process, the use of a coagulant and a flocculant is useful in removing TSS and reducing the concentration of phosphorus in the water being treated.

    METHOD FOR WATER TREATMENT BY ADSORPTION AND FILTRATION ON A GRANULAR MATERIAL BED
    6.
    发明申请
    METHOD FOR WATER TREATMENT BY ADSORPTION AND FILTRATION ON A GRANULAR MATERIAL BED 审中-公开

    公开(公告)号：US20170129785A1

    公开(公告)日：2017-05-11

    申请号：US15319250

    申请日：2015-06-18

    申请人： VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT

    发明人： Abdelkader GAID ,  Philippe SAUVIGNET

    IPC分类号： C02F1/28 ,  B01J20/34 ,  B01J20/20 ,  B01J20/28 ,  C02F1/78 ,  C02F1/00

    CPC分类号： C02F1/283 ,  B01J20/20 ,  B01J20/28004 ,  B01J20/28016 ,  B01J20/3416 ,  B01J20/3458 ,  C02F1/001 ,  C02F1/78 ,  C02F2209/003 ,  C02F2209/40 ,  C02F2209/44 ,  C02F2303/16 ,  C02F2303/18

    摘要： Method for treating water by filtration on a bed of granular material in order to reduce its content in contaminants, said method comprising the steps for: making said water travel in transit in a reactor containing said bed in a upward flow at a speed that does not permit the fluidization of said bed but permits said material to migrate, as and when the filtration takes place, towards the lower part of said reactor, continuously removing a fouled granular material at the foot of the reactor, by means of a piping into which a gas is insufflated, said fouled granular material being constituted by granular material and contaminants adsorbed on said granular material; continuously or intermittently carrying out the physical cleansing of said fouled granular material thus removed, so as to obtain a cleansed granular material essentially rid of said contaminants; reinjecting the granular material thus cleansed into an upper part of said bed; characterized in that the granular material is an adsorbent granular material and in that it comprises: a continuous or intermittent step for the discharging, during the filtration, of a part of the fouled granular material removed at the foot of the reactor; and a continuous or intermittent step for the introduction into the reactor, during the filtration, of fresh granular material in a quantity sufficient to compensate for the part of granular material discharged.

    Method for the treatment of water comprising a step of adsorption on ion-exchanging resin and a step of ballasted coagulation/flocculation and of separation, and corresponding plant
    8.
    发明申请
    Method for the treatment of water comprising a step of adsorption on ion-exchanging resin and a step of ballasted coagulation/flocculation and of separation, and corresponding plant 有权
    用于处理水的方法，包括在离子交换树脂上吸附的步骤和压载凝结/絮凝和分离步骤以及相应的植物

    公开(公告)号：US20160167998A1

    公开(公告)日：2016-06-16

    申请号：US14959711

    申请日：2015-12-04

    申请人： Veolia Water Solutions & Technologies Support

    发明人： Philippe SAUVIGNET ,  Abdelkader GAID

    IPC分类号： C02F9/00 ,  C02F1/00 ,  B01D21/00 ,  C02F1/24 ,  B01D21/01 ,  C02F1/42 ,  C02F1/52

    CPC分类号： C02F9/00 ,  B01D21/0084 ,  B01D21/01 ,  B01J47/10 ,  C02F1/004 ,  C02F1/24 ,  C02F1/42 ,  C02F1/5245 ,  C02F1/5281 ,  C02F1/56 ,  C02F2001/007 ,  C02F2001/422 ,  C02F2101/30 ,  C02F2303/16 ,  C02F2305/12 ,  G01M15/14

    摘要： Method for treating water, containing organic matter characterized in that it comprises a step of adsorption of the organic matter contained in said water, in which this water is put into contact with an amagnetic ion-exchanging resin in an infinitely stirred tank (1); the filtering of the mixture of water and resin within the tank (1) and the discharging of filtered water from this tank, the filtering being implemented through at least one screen (4) provided within the tank (1) enabling the resin to be contained in the infinitely stirred tank; the periodic cleansing of the screen (4) consisting of the separation, from this screen, of the saturated resin that has collected thereon; the drawing off (18) of saturated resin from the tank (1); the regenerating (6) of at least a part of the saturated resin thus drawn off; the recycling (7) of said resin thus regenerated in the tank (1); a step of ballasted coagulation/flocculation (12, 13) and separation (14) comprising the addition of coagulant reagent (12b), flocculent reagent (13b) and microballast (21) to the filtered water coming from the tank (1) leading to the formation of flocs; the separation of the formed flocs from a clarified water (16); and the discharging (16) of the clarified water; and the discharging (17) of the sludges formed by the separated flocs.

    摘要翻译： 用于处理含有有机物质的水的方法，其特征在于它包括吸收所述水中含有的有机物质的步骤，其中该水与无限搅拌槽（1）中的磁性离子交换树脂接触; 在罐（1）内过滤水和树脂的混合物并从该罐排出过滤的水，通过设置在罐（1）内的至少一个筛网（4）来实施过滤，使得能够容纳树脂 在无限搅拌的坦克中; 定期清洁筛网（4），该筛网（4）包括从该筛网上分离收集在其上的饱和树脂; 从罐（1）中取出（18）饱和树脂; 至少部分饱和树脂的再生（6）由此被排出; 所述树脂在罐（1）中再生的再循环（7）; 包括将凝结剂（12b），絮凝试剂（13b）和微型压载物（21）加入到来自罐（1）的过滤水中的压载凝固/絮凝（12,13）和分离（14）的步骤， 絮凝物的形成; 所形成的絮凝物与澄清水（16）的分离; 和澄清水的排放（16）; 和由分离的絮凝物形成的污泥的排出（17）。