TW200706499A - Extended-life water softening system, apparatus and method - Google Patents

Extended-life water softening system, apparatus and method

Info

Publication number
TW200706499A
TW200706499A TW095125174A TW95125174A TW200706499A TW 200706499 A TW200706499 A TW 200706499A TW 095125174 A TW095125174 A TW 095125174A TW 95125174 A TW95125174 A TW 95125174A TW 200706499 A TW200706499 A TW 200706499A
Authority
TW
Taiwan
Prior art keywords
water
extended
water softening
ions
softening system
Prior art date
Application number
TW095125174A
Other languages
English (en)
Inventor
Harapanahalli S Muralidhara
N S Krishna Kumar
Original Assignee
Cargill Inc
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 Cargill Inc filed Critical Cargill Inc
Publication of TW200706499A publication Critical patent/TW200706499A/zh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • 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
    • B01D61/027—Nanofiltration
    • 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
    • B01D61/027—Nanofiltration
    • B01D61/0271—Nanofiltration comprising multiple nanofiltration steps
    • 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
    • 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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2317/00—Membrane module arrangements within a plant or an apparatus
    • B01D2317/02—Elements in series
    • B01D2317/022—Reject series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16—Use of chemical agents
    • B01D2321/162—Use of acids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/20—By influencing the flow
    • B01D2321/2083—By reversing the flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
TW095125174A 2005-07-12 2006-07-11 Extended-life water softening system, apparatus and method TW200706499A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69865205P 2005-07-12 2005-07-12

Publications (1)

Publication Number Publication Date
TW200706499A true TW200706499A (en) 2007-02-16

Family

ID=37637488

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095125174A TW200706499A (en) 2005-07-12 2006-07-11 Extended-life water softening system, apparatus and method

Country Status (12)

Country Link
US (1) US20080179250A1 (zh)
EP (1) EP1901834A4 (zh)
JP (1) JP2009501080A (zh)
KR (1) KR20080042078A (zh)
CN (1) CN101222970A (zh)
AR (1) AR056669A1 (zh)
BR (1) BRPI0613055A2 (zh)
CA (1) CA2614736A1 (zh)
MX (1) MX2008000564A (zh)
RU (1) RU2008104828A (zh)
TW (1) TW200706499A (zh)
WO (1) WO2007008850A1 (zh)

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KR101249332B1 (ko) * 2012-02-13 2013-04-02 코웨이 주식회사 나노 분리막을 이용한 연수화 정수 처리 장치 및 연수화 정수 방법
ES2764806T3 (es) * 2012-04-15 2020-06-04 Ben Gurion Univ Método y aparato para efectuar desalinización de alta recuperación con membranas accionadas por presión
US10245556B2 (en) 2012-04-15 2019-04-02 Ben Gurion University Of The Negev Research And Development Authority Method and apparatus for effecting high recovery desalination with pressure driven membranes
CN105026018B (zh) * 2013-03-14 2019-10-29 Bl 科技公司 带有浓缩液分级和浓缩液再循环、可转换的级或两者的膜过滤系统
CN104944527A (zh) * 2015-06-12 2015-09-30 江苏新美星包装机械股份有限公司 一种净水工艺
US11072551B2 (en) 2016-12-12 2021-07-27 A. O. Smith Corporation Water filtration system with recirculation to reduce total dissolved solids creep effect

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Also Published As

Publication number Publication date
WO2007008850A1 (en) 2007-01-18
BRPI0613055A2 (pt) 2010-12-14
MX2008000564A (es) 2008-03-10
JP2009501080A (ja) 2009-01-15
RU2008104828A (ru) 2009-08-20
CA2614736A1 (en) 2007-01-18
CN101222970A (zh) 2008-07-16
KR20080042078A (ko) 2008-05-14
AR056669A1 (es) 2007-10-17
EP1901834A4 (en) 2008-12-17
US20080179250A1 (en) 2008-07-31
EP1901834A1 (en) 2008-03-26

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