Integrated unit for intake and pretreatment with local backwashing

    公开(公告)号:US20200054970A1

    公开(公告)日:2020-02-20

    申请号:US16093924

    申请日:2017-04-14

    Abstract: Locally backwashing portions of filter media allows a simple and effective design of intake and pretreatment units, as well as their integration. An enclosure is used to limit portions of filter media and backwash them locally by suction, utilizing filtered water from adjacent filter media as the back wash water. Wastewater is produced at small amounts that allows efficient sludge treatment. This design enables water pretreatment at the intake unit, simplifying overall plant design and preventing damage to organisms living outside the intake unit.

    INTEGRATED UNIT FOR INTAKE AND PRETREATMENT WITH LOCAL BACKWASHING

    公开(公告)号:US20190083907A1

    公开(公告)日:2019-03-21

    申请号:US16161032

    申请日:2018-10-15

    Abstract: A backwashing apparatus 110 for a filtering system comprises and enclosure 119 having an open lower end, positionable above a surface of filter media 92 supported by a drainage area 96. A pneumatic system such as an air pump, is in fluid communication with the upper part 127 of the enclosure and is configured to determine an air pressure therein. A pipe system connects the upper part of the enclosure with the pneumatic system and with a discharge structure 132. A control unit is connected to the pneumatic system. The enclosure is provided with a water inlet 120 for selective delivery of water from outside the enclosure to within the enclosure during sinking of the enclosure into filter media. Also disclosed is a method of backwashing a filtering system. The backwashing apparatus may be used to pre-treat water.

    Method of operating a pressure-retarded osmosis plant

    公开(公告)号:US10155677B2

    公开(公告)日:2018-12-18

    申请号:US14888920

    申请日:2014-06-02

    Inventor: Boris Liberman

    Abstract: A method of operating a pressure-retarded osmosis plant, the plant comprising at least one osmosis element having a semi-permeable membrane, the semi-permeable membrane defining a feed side and a permeate side of the osmosis element, the method comprising, in a first mode of operation, supplying a feed stream having a relatively high concentration of solute to the feed side, supplying a permeate stream having a relatively low concentration of solute to an inlet of the permeate side, and receiving a feed outlet stream from the feed side wherein permeate has passed through the semi-permeable membrane from the permeate side to the feed side, in a second mode of operation, supplying a backwash stream having a relatively low concentration to the feed side of the osmosis element such that water passes through the semi-permeable membrane, and receiving a permeate outlet stream from an outlet of the permeate side, the method further comprising alternately performing the first mode of operation, to perform a production step, and performing the second mode of operation, to reduce fouling of the semi-permeable membrane.

    METHOD OF OPERATING A PRESSURE-RETARDED OSMOSIS PLANT
    35.
    发明申请
    METHOD OF OPERATING A PRESSURE-RETARDED OSMOSIS PLANT 审中-公开
    操作压力减轻的植物植物的方法

    公开(公告)号:US20160083273A1

    公开(公告)日:2016-03-24

    申请号:US14888920

    申请日:2014-06-02

    Inventor: Boris LIBERMAN

    Abstract: A method of operating a pressure-retarded osmosis plant, the plant comprising at least one osmosis element having a semi-permeable membrane, the semi-permeable membrane defining a feed side and a permeate side of the osmosis element, the method comprising, in a first mode of operation, supplying a feed stream having a relatively high concentration of solute to the feed side, supplying a permeate stream having a relatively low concentration of solute to an inlet of the permeate side, and receiving a feed outlet stream from the feed side wherein permeate has passed through the semi-permeable membrane from the permeate side to the feed side, in a second mode of operation, supplying a backwash stream having a relatively low concentration to the feed side of the osmosis element such that water passes through the semi-permeable membrane, and receiving a permeate outlet stream from an outlet of the permeate side, the method further comprising alternately performing the first mode of operation, to perform a production step, and performing the second mode of operation, to reduce fouling of the semi-permeable membrane.

    Abstract translation: 一种操作压阻渗透设备的方法,所述设备包括至少一个具有半透膜的渗透元件,所述半透膜限定所述渗透元件的进料侧和渗透侧,所述方法包括: 第一操作模式,将具有相对高浓度溶质的进料流供给到进料侧,将具有较低浓度溶质的渗透物流供应到渗透物侧的入口,以及从进料侧接收进料出口流 其中渗透物已经从所述渗透侧穿过所述半透膜到所述进料侧,在第二操作模式中,向所述渗透元件的进料侧供应具有较低浓度的反洗流,使得水通过所述半 并且从所述渗透侧的出口接收渗透物出口流,所述方法还包括交替地执行所述第一操作模式 进行制造工序,进行第二工作模式,以减少半透膜的结垢。

    OSMOSIS APPARATUS
    36.
    发明申请
    OSMOSIS APPARATUS 审中-公开

    公开(公告)号:US20160059188A1

    公开(公告)日:2016-03-03

    申请号:US14785589

    申请日:2014-04-14

    Inventor: Boris LIBERMAN

    Abstract: An osmosis element comprising a central permeate tube and a membrane element, the membrane having a first part and a second part, the first part having a top edge for location adjacent the central tube, the second part being disposed at the opposite edge, the first part comprising a material to allow water to flow therethrough, the second part comprising at least two adjacent permeate spacers extending from the first part to allow water to flow therethrough, the permeate spacers having a semi-permeable membrane attached to opposed faces of the two adjacent permeate spacers, the first part comprising a barrier extending from the vicinity of the top edge, the central tube comprising an external wall and a longitudinally extending internal separator defining a first channel and a second channel each extending longitudinally of the central permeate tube, at least one first aperture extending from the first channel though the external wall and at least one second aperture extending from the second channel through the external wall.

    Abstract translation: 一种渗透元件,包括中心渗透管和膜元件,所述膜具有第一部分和第二部分,所述第一部分具有用于邻近所述中心管定位的顶部边缘,所述第二部分设置在相对的边缘,所述第一部分 部分包括允许水流过其中的材料,第二部分包括从第一部分延伸的至少两个相邻的渗透物间隔件,以允许水流过其中,所述渗透物间隔物具有连接到两个相邻的相对面的半透膜 所述第一部分包括从所述顶部边缘附近延伸的屏障,所述中心管包括外壁和纵向延伸的内部分隔件,所述内壁限定了第一通道和第二通道,所述第一通道和第二通道各自延伸至所述中心渗透管的纵向,至少 一个第一孔,从第一通道延伸通过外壁和至少一个第二孔 第二通道通过外墙。

    EVAPORATOR ARRAY FOR A WATER TREATMENT SYSTEM
    37.
    发明申请
    EVAPORATOR ARRAY FOR A WATER TREATMENT SYSTEM 有权
    用于水处理系统的蒸发器阵列

    公开(公告)号:US20150360969A1

    公开(公告)日:2015-12-17

    申请号:US14763821

    申请日:2014-01-21

    Inventor: Yaniv SCHMIDT

    Abstract: An evaporator array for a water treatment system, the evaporator array comprising a produced water feed and a first evaporator to receive produced water from the produced water feed, a makeup water feed and a second evaporator to receive makeup water from the makeup water feed, an output feed to receive distillate from the first evaporator and the second evaporator, and a blowdown feed to receive blowdown from the first evaporator and the second evaporator, wherein the first evaporator and the second evaporator each have a working pH, the working pH of the first evaporator being higher than that of the second evaporator.

    Abstract translation: 一种用于水处理系统的蒸发器阵列,所述蒸发器阵列包括生产的水进料和第一蒸发器,用于从生产的水进料接收产生的水,补充水进料和第二蒸发器,用于从补充水进料接收补充水, 从第一蒸发器和第二蒸发器接收馏出物的输出进料以及从第一蒸发器和第二蒸发器接收排污的排污进料,其中第一蒸发器和第二蒸发器各自具有工作pH,第一蒸发器和第二蒸发器的工作pH为第一蒸发器 蒸发器高于第二蒸发器。

    Multi-effect evaporator
    38.
    发明授权
    Multi-effect evaporator 有权
    多效蒸发器

    公开(公告)号:US08986508B2

    公开(公告)日:2015-03-24

    申请号:US14059171

    申请日:2013-10-21

    Abstract: A thermal desalination system adapted to produce distilled water from feed water which may be sea water, based on a forward feed evaporator made up of a main water feed line, a vapor feed line, a distilled water main line and any number of effect groups. The effect groups include any number of effects which in turn include vapor inlets, water inflow lines, concentrate outflow lines that drain into a common concentrate drainage line, a vapor and water outlet in fluid communication with the distilled water main line, and heat transfer means that condense part of an inlet vapor to produce the distilled water.

    Abstract translation: 一种热脱盐系统,其适用于由主要供水管线,蒸气供给管线,蒸馏水主管线和任意数量的效果组构成的正向进料蒸发器,可以从海水中产生蒸馏水。 效果组包括任何数量的效应,其又包括蒸气入口,水流入管线,排入普通浓缩液排放管线的浓缩物流出管线,与蒸馏水主管线流体连通的蒸气和水出口,以及传热装置 冷凝入口蒸汽的一部分以产生蒸馏水。

    FLUE GAS TREATMENT AND PERMEATE HARDENING
    39.
    发明申请
    FLUE GAS TREATMENT AND PERMEATE HARDENING 审中-公开
    FLE气体处理和透气性硬化

    公开(公告)号:US20150072393A1

    公开(公告)日:2015-03-12

    申请号:US14512452

    申请日:2014-10-12

    Inventor: Boris LIBERMAN

    Abstract: Combining flue gas treatment, and in particular CO2 sequestration, with hardening of reverse osmosis (RO) permeate. Flue gas is compressed and injected into pressurized water, being either cooling water or RO permeate. The water with dissolved CO2 is either dispensed into the sea for biological fixation of the CO2 or, in the case of RO permeate, mixed with limestone to harden the product water.

    Abstract translation: 结合烟气处​​理,特别是二氧化碳封存,与反渗透(RO)渗透的硬化。 烟气被压缩并注入加压水,即冷却水或RO渗透物。 将溶解有CO2的水分配到海中进行生物固定二氧化碳,或者在RO渗透物的情况下,与石灰石混合以使产品水硬化。

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