Method for ultra-dehydrating thickened or pasty biomass products, and equipment for implementing the method

    公开(公告)号:US10239777B2

    公开(公告)日:2019-03-26

    申请号:US15891753

    申请日:2018-02-08

    申请人: DEGREMONT

    摘要: The invention relates to a method for ultra-dehydrating thickened or pasty biomass products, in particular sludge from wastewater treatment plants, according to which the products, in particular products having a dryness of 4% to 25%, are subjected to the following steps: hydrothermal carbonization treatment, including pressurization (1, 2) and thermal conditioning (30) for a duration in a closed reactor (4); followed by dehydration of the products by a ram press (12), obtaining a dryness of more than 50%; the temperature of the product upstream from the ram press dehydration being regulated by cooling between 40° C. and 90° C., advantageously to around 70° C., in order to optimize the filterability in the piston press; the steps of the method being performed in a confined space making it possible to prevent the release of smells into the atmosphere.

    Method and facility for the aerobic biological treatment of effluent, in particular wastewater

    公开(公告)号:US10040711B2

    公开(公告)日:2018-08-07

    申请号:US15032201

    申请日:2014-10-30

    申请人: DEGREMONT

    摘要: A method for biologically treating effluent involves pouring the effluent into a basin in which mobile supports are submerged for developing a biofilm and for carrying out a treatment by fixed fluidized bed, aerating the effluent in the basin with a distribution of air flow, from the bottom of the basin, according to a floor configuration, the aeration supplying air for treating the nutrients, and keeping the supports moving, regulating the aeration to modulate the air flow depending on at least one parameter taken from the following parameters: the residual oxygen concentration, and/or the concentration of oxygen and the concentration of N—NH4, and/or the permitted load; modifying the distribution of the air supply from the floor configuration to a spiral flow configuration when the operating conditions result in an air flow lower than a minimum air flow required to keep the mobile supports moving in the floor configuration.

    Automatic backwash filter system
    3.
    发明申请
    Automatic backwash filter system 有权
    自动反冲洗过滤系统

    公开(公告)号:US20030230525A1

    公开(公告)日:2003-12-18

    申请号:US10174273

    申请日:2002-06-18

    IPC分类号: B01D024/22

    摘要: The invention is directed to an automatic backwash filter system that includes at least one influent port for introducing a fluid to the filter; a plurality of partitions forming a plurality of compartments for holding a filtering media for filtering the fluid; at least one porous plate for supporting the plurality of partitions; wherein each of the partitions is mounted atop a continuous portion of the porous plate; and at least one effluent port for draining the fluid away from the compartments. The filter may also include a filter media comprising one or more selected from the group consisting of sand, anthracite coal, and activated carbon. The invention also includes a method for preparing the automatic backwash filtering system that includes the steps of arranging a plurality of partitions to form a plurality of compartments for holding a filtering media for filtering a fluid; binding together a plurality of porous plates by a lap joint at least one of the partitions; and securing the plurality of partitions to the plurality of porous plates so that each of the partitions is mounted atop a continuous portion of the porous plate to prevent the filtering media from passing therethough. Each of the plurality of partitions may be secured to the porous plate with angles and mounting bolts.

    摘要翻译: 本发明涉及一种自动反冲洗过滤器系统,其包括用于将流体引入过滤器的至少一个流入口; 多个隔板,形成多个隔间,用于保持用于过滤流体的过滤介质; 至少一个用于支撑所述多个隔板的多孔板; 其中每个所述隔板安装在所述多孔板的连续部分的上方; 以及用于将流体排出隔室的至少一个流出端口。 过滤器还可以包括包含一种或多种选自砂,无烟煤和活性炭的过滤介质。 本发明还包括一种制备自动反冲洗过滤系统的方法,其包括以下步骤:布置多个隔板以形成多个隔间,用于保持用于过滤流体的过滤介质; 通过搭接接头将多个多孔板结合在一起,至少一个隔板; 并且将多个隔板固定到多个多孔板上,使得每个隔板安装在多孔板的连续部分上方,以防止过滤介质通过。 多个隔板中的每一个可以用角度和安装螺栓固定到多孔板。

    Combined apparatus for the biological purification of waste waters
    5.
    发明授权
    Combined apparatus for the biological purification of waste waters 失效
    用于生物净化废水的组合设备

    公开(公告)号:US3834540A

    公开(公告)日:1974-09-10

    申请号:US21479472

    申请日:1972-01-03

    申请人: DEGREMONT

    发明人: BERNARD J

    IPC分类号: C02F3/00 C02F3/22 C02C1/08

    CPC分类号: C02F3/223 C02F3/006 Y02W10/15

    摘要: Combined apparatus for the biological purification of waste waters by means of activated sludges, which comprises at least two coupled clarification tanks which are in communication with an aerator tank as well as means for recycling the settled sludges coming from the clarification tanks into the aerator tank, characterized by the fact that the means for recycling the settled sludges consist of air pumps of the ''''air-lift'''' type which discharge into the aerator from each of the clarifiers and which are fed with air with a pulsating intermittent flow, alternating in each of the clarifiers, which causes a pulsating recirculation of the settled sludges, alternately from each of the clarifiers towards the aerator. The air-lifts are so developed that they have a base which is flared with respect to their top, said base constituting the orifice thereof for the drawing in of settled sludges which are to be recycled.

    摘要翻译: 用于通过活性污泥生物净化废水的组合装置,其包括与充气罐连通的至少两个耦合澄清池以及用于将来自澄清池的沉降污泥再循环到曝气池中的装置, 其特征在于,用于回收沉降的污泥的装置由“空气提升”型的空气泵组成,其从每个澄清器排放到曝气器中,并且每一个都具有脉动间歇流动的空气 澄清器,其导致沉降的淤泥的脉动再循环,从每个澄清器交替地朝向曝气器。 升降机如此发展,使得它们具有相对于其顶部张开的基座,所述基座构成其孔口,用于抽出待循环的沉降淤泥。

    Separation of ion exchange resins having different densities
    6.
    发明授权
    Separation of ion exchange resins having different densities 失效
    具有不同浓度的离子交换树脂的分离

    公开(公告)号:US3831750A

    公开(公告)日:1974-08-27

    申请号:US27828472

    申请日:1972-08-07

    申请人: DEGREMONT

    CPC分类号: B03B5/64 B01J47/04 B03B5/623

    摘要: Improved fluidizing apparatus adapted to separate continuously ion exchange resins having different densities in order to perform their selective classification according to suitable granulometric distributions. The apparatus comprises a first separation chamber and in the lower portion of this first separation chamber a second chamber coaxially thereto having a gradually increasing cross-section from the bottom to the top. This apparatus is notably applicable to a method of separation if ion exchange resins in movable-bed demineralizing installations in which the resins and their supporting fluid are introduced in the bottom of the second chamber in which they circulate upwards in the first chamber from which they are discharged in different zones depending on their densities.

    摘要翻译: 改进的流化设备适于分离具有不同密度的连续离子交换树脂,以便根据合适的粒度分布进行其选择性分类。 该装置包括第一分离室,并且在该第一分离室的下部中与其同轴的第二室具有从底部到顶部逐渐增加的横截面。

    Method and apparatus for the continuous regeneration of ion exchange resins
    7.
    发明授权
    Method and apparatus for the continuous regeneration of ion exchange resins 失效
    离子交换树脂连续再生的方法与装置

    公开(公告)号:US3650948A

    公开(公告)日:1972-03-21

    申请号:US3650948D

    申请日:1969-11-03

    申请人: DEGREMONT

    CPC分类号: B01J8/20 B01J49/10

    摘要: THIS INVENTION PROVIDES A METHOD OF REGENERATING ION EXCHANGE RESINS IN A FLUID BED, WHICH CONSISTS IN LOOSENING, ACTUALLY REGENERATING AND THEREAFTER RINSING THE REGENERATED ION EXCHANGE RESINS AS A CONTINUOUS PROCESS IN A SAME AND SINGLE ENCLOSURE, IN SUPERPOSED SUCCESSIVE ZONES THEREOF, BY POSSIBLY VARYING THE UPWARD SPEED OF THE LIQUIDS CIRCULATING IN EACH ONE OF SAID ZONES IN COUNTER-CURRENT RELATIONSHIP TO THE RESIN FLOW, AS A FUNCTION OF THE SPECIFIC ONE OF THE AFORESAID OPERATIONS WHICH IS BEING PERFORMED IN EACH ONE OF THE AFORESAID ZONES. THE INVENTION ALSO COMPRISES, AN APARATUS FOR CARRYING OUT THIS METHOD, WHICH COMPRISES A COLUMN IN WHICH THE SATURATED RESINS CIRCULATE BY GRAVITY FROM TOP TO BOTTOM WITH THE REGENERATING, WASHING AND RINSING LIQUIDS CIRCULATING IN COUNTER-CURRENT RELATIONSHIP TO THE RESINS.

    摘要翻译: 1280859离子交换再生DEGREMONT SOC GENERALE D'EPURATION ET D'ASSAINISSEMENT 1969年11月19日[1968年11月20日] 56635/69标题B1J在单级逆流再生和洗涤离子交换器时,液体流动被控制为 在再生完成之前防止树脂进入洗涤区。

    Pressure indicating and/or regulating devices
    8.
    发明授权
    Pressure indicating and/or regulating devices 失效
    压力指示和/或调节装置

    公开(公告)号:US3590639A

    公开(公告)日:1971-07-06

    申请号:US3590639D

    申请日:1968-09-23

    申请人: DEGREMONT

    发明人: PONSAR YVES MARIE

    IPC分类号: G01L7/18

    CPC分类号: G01L7/18

    摘要: A pressure measuring and/or regulating device incorporating a movable solid body placed in a liquid-filled chamber. The body has a fluid-filled lower recess and has vertical surfaces directed upwards and/or downwards. One of these is a downwardly directed surface which is exposed to the fluid in the recess and another is an upwardly directed surface which is exposed to the liquid medium. The second surface is higher than the first and serves to correct for the Archimedean thrust applied to a third surface of this body which is directed downwardly, which is lower than the first and second surface, and which is exposed to the liquid.