SG11201901912SA - Method and system for liquid treatment - Google Patents

Method and system for liquid treatment

Info

Publication number
SG11201901912SA
SG11201901912SA SG11201901912SA SG11201901912SA SG11201901912SA SG 11201901912S A SG11201901912S A SG 11201901912SA SG 11201901912S A SG11201901912S A SG 11201901912SA SG 11201901912S A SG11201901912S A SG 11201901912SA SG 11201901912S A SG11201901912S A SG 11201901912SA
Authority
SG
Singapore
Prior art keywords
high pressure
liquid
pressure pump
feed liquid
permeate
Prior art date
Application number
SG11201901912SA
Inventor
Benaya Hoz
Original Assignee
Israel Aerospace Ind Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Israel Aerospace Ind Ltd filed Critical Israel Aerospace Ind Ltd
Publication of SG11201901912SA publication Critical patent/SG11201901912SA/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/12—Controlling or regulating
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/25—Recirculation, recycling or bypass, e.g. recirculation of concentrate into the feed
    • B01D2311/252—Recirculation of concentrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/25—Recirculation, recycling or bypass, e.g. recirculation of concentrate into the feed
    • B01D2311/252—Recirculation of concentrate
    • B01D2311/2523—Recirculation of concentrate to feed side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/005—Processes using a programmable logic controller [PLC]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/005—Processes using a programmable logic controller [PLC]
    • C02F2209/006—Processes using a programmable logic controller [PLC] comprising a software program or a logic diagram
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/005—Processes using a programmable logic controller [PLC]
    • C02F2209/008—Processes using a programmable logic controller [PLC] comprising telecommunication features, e.g. modems or antennas
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/03—Pressure
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/05—Conductivity or salinity
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/40—Liquid flow rate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

A method of treatment of liquid in a liquid treatment system comprising: at least one liquid treatment module including at least one membrane and having a feed liquid inlet at a feed side of said at least one membrane, a permeate outlet at a permeate side of said at least one membrane, and a concentrate outlet at a brine side of said at least one membrane; a high pressure pump operative for pressurizing feed liquid to be received at said feed liquid inlet; and a system controller for controlling operation of the system including providing instructions to operate said high pressure pump in one of at least two operation modes including: a first mode in which the high pressure pump maintains a fixed flow rate of the feed liquid at said feed liquid inlet or of a permeate liquid at said permeate outlet, while energy consumption of said high pressure pump being a function of variations of a first operational parameter measured in the system and indicative of salinity of liquid within said at least one liquid treatment module, and a second mode in which the high pressure pump maintains a flow rate of the feed liquid at said feed liquid inlet or of a permeate liquid at said permeate outlet, while energy consumption of said high pressure pump being a function of a second operational parameter determined so as to reduce energy consumption of the high pressure pump; said method being performed under control of said system controller and comprising steps of: pressurizing feed liquid by said high pressure pump in said first mode; circulating a concentrate from said concentrate outlet to said feed liquid inlet; providing to said system controller a third operational parameter measured in the system and indicative of salinity of liquid within said liquid treatment module; and upon detecting that a predetermined first threshold of said third operational parameter is reached, operating said high pressure pump in said second mode.
SG11201901912SA 2016-09-07 2017-08-09 Method and system for liquid treatment SG11201901912SA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL247687A IL247687B (en) 2016-09-07 2016-09-07 Method and system for liquid treatment
PCT/IL2017/050879 WO2018047156A1 (en) 2016-09-07 2017-08-09 Method and system for liquid treatment

Publications (1)

Publication Number Publication Date
SG11201901912SA true SG11201901912SA (en) 2019-04-29

Family

ID=57907533

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201901912SA SG11201901912SA (en) 2016-09-07 2017-08-09 Method and system for liquid treatment

Country Status (4)

Country Link
US (1) US10994245B2 (en)
IL (1) IL247687B (en)
SG (1) SG11201901912SA (en)
WO (1) WO2018047156A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020106340A1 (en) * 2020-03-09 2021-09-09 Analytik Jena Gmbh Method for the analysis of water
EP4173695A1 (en) * 2021-10-29 2023-05-03 Grundfos Holding A/S Membrane filtration system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL157430A (en) * 2003-08-17 2009-08-03 Avi Efraty Apparatus for continuous closed circuit desalination under variable pressure with a single container
IL162713A (en) 2004-06-24 2011-04-28 Desalitech Ltd Apparatus and methods for continuous desalination in closed circuit without containers
IL169654A (en) 2005-07-13 2012-01-31 Desalitech Ltd Continuous membrane filter separation of suspended particles in closed circuit
JP4831480B2 (en) 2006-06-21 2011-12-07 三浦工業株式会社 Membrane filtration system
US8025804B2 (en) 2006-12-19 2011-09-27 Avi Efraty Continuous closed-circuit desalination method without containers
US20130126430A1 (en) * 2011-09-15 2013-05-23 Deka Products Limited Partnership Systems, Apparatus, and Methods for a Water Purification System
WO2013147702A1 (en) 2012-03-29 2013-10-03 Hydrochem (S) Pte Ltd System and method for desalination
US20140061129A1 (en) * 2012-09-04 2014-03-06 Israel Aerospace Industries Ltd. System and method of desalination of water
EP2969145B1 (en) * 2013-03-15 2024-08-07 Porifera Inc. Advancements in osmotically driven membrane systems including multi-stage purification
US10214430B2 (en) * 2015-03-04 2019-02-26 Israel Aerospace Industries Ltd. Water treatment system and method

Also Published As

Publication number Publication date
US20190209968A1 (en) 2019-07-11
IL247687B (en) 2018-06-28
US10994245B2 (en) 2021-05-04
IL247687A0 (en) 2017-01-31
WO2018047156A1 (en) 2018-03-15

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