ES2059162T3 - Procedimiento de ablandamiento de agua. - Google Patents

Procedimiento de ablandamiento de agua.

Info

Publication number
ES2059162T3
ES2059162T3 ES92100501T ES92100501T ES2059162T3 ES 2059162 T3 ES2059162 T3 ES 2059162T3 ES 92100501 T ES92100501 T ES 92100501T ES 92100501 T ES92100501 T ES 92100501T ES 2059162 T3 ES2059162 T3 ES 2059162T3
Authority
ES
Spain
Prior art keywords
water softening
contact
calcium carbonate
hard water
precipitation
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES92100501T
Other languages
English (en)
Inventor
Ora Kedem
Jonathan Ben-Dror
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRECOR BV
Yeda Research and Development Co Ltd
Original Assignee
CRECOR BV
Yeda Research and Development Co 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 CRECOR BV, Yeda Research and Development Co Ltd filed Critical CRECOR BV
Application granted granted Critical
Publication of ES2059162T3 publication Critical patent/ES2059162T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C02F5/02—Softening water by precipitation of the hardness

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Removal Of Specific Substances (AREA)
  • Saccharide Compounds (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Water Treatment By Sorption (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

PROCESO Y METODO DE ABLANDAMIENTO DEL AGUA DURA POR PRECIPITACION DE CARBONATO CALCICO. EL AGUA DURA PASA A SER ALCALINA, E.J. MEDIANTE LA ADICION DE HIDROXIDO DE SODIO, PONIENDOSE POSTERIORMENTE EN CONTACTO CON UNA CANTIDAD EN EXCESO DE CRISTALES DE CARBONATO DE CALCIO CUYO TAMAÑO NO EXCEDA LOS 100 MICRONES, CON LO CUAL LA PRECIPITACION OCURRE DENTRO DE UN TIEMPO CORTO DE CONTACTO DE 2-60 SEGUNDOS. EN LA SEPARACION DEL AGUA BLANDA A PARTIR DE CARBONATO CALCICO, LA MAYOR PARTE DE ESTE ULTIMO ES RECIRCULADA Y LAS CANTIDADES EN EXCESO ELIMINADAS.
ES92100501T 1991-01-16 1992-01-14 Procedimiento de ablandamiento de agua. Expired - Lifetime ES2059162T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/642,207 US5152904A (en) 1991-01-16 1991-01-16 Water softening process

Publications (1)

Publication Number Publication Date
ES2059162T3 true ES2059162T3 (es) 1994-11-01

Family

ID=24575656

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92100501T Expired - Lifetime ES2059162T3 (es) 1991-01-16 1992-01-14 Procedimiento de ablandamiento de agua.

Country Status (13)

Country Link
US (1) US5152904A (es)
EP (1) EP0495451B1 (es)
JP (1) JPH0691295A (es)
AT (1) ATE111062T1 (es)
CA (1) CA2059419C (es)
DE (1) DE69200371T2 (es)
DK (1) DK0495451T3 (es)
ES (1) ES2059162T3 (es)
FI (1) FI920176A7 (es)
IE (1) IE66716B1 (es)
IL (1) IL100647A (es)
MX (1) MX9200197A (es)
NO (1) NO920189L (es)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5609765A (en) * 1994-05-19 1997-03-11 Bowman; Ronald W. Steam stripping method for the softening of water
WO1997003025A1 (de) * 1995-07-10 1997-01-30 Grünbeck Wasseraufbereitung GmbH Verfahren zum entkalken von hauswasser und vorrichtung zum durchführen des verfahrens
RU2151746C1 (ru) * 1997-06-13 2000-06-27 Тарханова Лилия Степановна Способ умягчения воды
US6270671B1 (en) 1999-01-08 2001-08-07 United States Filter Corporation Method and apparatus for microfiltration
GB9914398D0 (en) * 1999-06-22 1999-08-18 Bp Exploration Operating Reduction in solids deposition
JP4431676B2 (ja) * 1999-09-03 2010-03-17 株式会社片山化学工業研究所 水処理方法
FR2818922B1 (fr) * 2000-12-28 2003-10-03 Atofina Procede et dispositif pour la mise en oeuvre d'une reaction en milieu liquide avec degagement gazeux
US6863822B2 (en) * 2002-10-16 2005-03-08 Anthony Pipes Method and apparatus for parallel desalting
US20050016922A1 (en) * 2003-03-24 2005-01-27 Enzweiler Ronald J. Preferential precipitation membrane system and method
US7960329B2 (en) * 2007-05-04 2011-06-14 Ecolab Usa Inc. Compositions including magnesium ion, calcium ion, and silicate and methods employing them to reduce corrosion and etch
JP2010043836A (ja) * 2008-07-15 2010-02-25 Kurita Water Ind Ltd 太陽エネルギー収集方法及び装置
US9027390B1 (en) * 2009-08-19 2015-05-12 Gene Rigby System and method of determining sources of water infiltration/inflow into a sewer system
US8459275B2 (en) 2009-09-23 2013-06-11 Ecolab Usa Inc. In-situ cleaning system
US9458033B2 (en) 2010-03-24 2016-10-04 Uri Rapoport Water desalination mechanism
DE102010037513B3 (de) * 2010-09-14 2011-12-01 Michael Eumann Entcarbonisierungsverfahren sowie Vorrichtung zum Gewinnen von in seiner Carbonathärte reduziertem klarem Betriebswasser
US9790153B2 (en) 2011-11-14 2017-10-17 Cameron International Corporation Process scheme to improve divalent metal salts removal from mono ethylene glycol (MEG)
WO2013122593A1 (en) 2012-02-16 2013-08-22 Pandya Ken V High efficiency water-softening process
US9493368B2 (en) 2012-05-03 2016-11-15 Tangent Company Llc Hardness reduction apparatus and method
WO2017115378A1 (en) * 2015-12-30 2017-07-06 Ora Kedem Method and system for reverse osmosis with high recovery
KR102031911B1 (ko) 2017-06-19 2019-11-08 엘지전자 주식회사 경도저감필터
JP7104871B2 (ja) * 2018-04-18 2022-07-22 ワールド・リンク株式会社 硬水のカルシウム成分を利用した食品添加材や抗菌・除菌・殺菌材の製造方法
JP7122246B2 (ja) * 2018-12-27 2022-08-19 クボタ環境エンジニアリング株式会社 薬剤添加量測定方法、薬剤添加量測定装置、溶存カルシウム分離方法、浸出水の溶存カルシウム分離装置、カルシウム濃度測定方法及びカルシウム濃度測定装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA485667A (en) * 1952-08-12 Evans Herbert Water treatment
US1984219A (en) * 1929-05-23 1934-12-11 Krueger As I Process and apparatus for reducing the hardness of water
US3583910A (en) * 1969-02-19 1971-06-08 Allied Chem Hard water treatment
US4209395A (en) * 1975-01-14 1980-06-24 Passavant-Werke Michelbacher Huette Process for slow softening water
US3976569A (en) * 1975-02-25 1976-08-24 The United States Of America As Represented By The United States Energy Research And Development Administration Water softening process
US4207183A (en) * 1978-05-11 1980-06-10 Resources Conservation Company Prevention of solute deposition fouling in membrane processes
ATE43128T1 (de) * 1983-05-27 1989-06-15 Johnson Filtration Systems Enthaertung mittels kalk und querstrommikrofiltration.
US4670150A (en) * 1983-05-27 1987-06-02 Neptune Microfloc, Incorporated Cross-flow microfiltration lime softener

Also Published As

Publication number Publication date
DE69200371D1 (de) 1994-10-13
NO920189D0 (no) 1992-01-15
US5152904A (en) 1992-10-06
IE920098A1 (en) 1992-07-29
FI920176L (fi) 1992-07-17
ATE111062T1 (de) 1994-09-15
NO920189L (no) 1992-07-17
IE66716B1 (en) 1996-01-24
IL100647A (en) 1996-07-23
CA2059419C (en) 1998-09-22
FI920176A7 (fi) 1992-07-17
JPH0691295A (ja) 1994-04-05
DK0495451T3 (da) 1994-10-17
MX9200197A (es) 1992-12-01
CA2059419A1 (en) 1992-07-17
EP0495451B1 (en) 1994-09-07
IL100647A0 (en) 1992-09-06
FI920176A0 (fi) 1992-01-15
EP0495451A1 (en) 1992-07-22
DE69200371T2 (de) 1995-01-05

Similar Documents

Publication Publication Date Title
CA2059419A1 (en) Water softening process and apparatus
BR8300127A (pt) Solucao aquosa isotonica,com um ph entre cerca de 3,5 e 6,5,adequada para limpeza,desinfeccao e armazenamento de lentes de contato gelatinosas hidrofilicas,e processo utilizando a mesma
EP0728703A4 (en) METHOD AND DEVICE FOR THE PRODUCTION OF WATER WITH CLEARING PROPERTIES
CA2035049A1 (en) Non-toxic photographic developer composition
DE3479923D1 (en) Contact lenses
ES8301638A1 (es) Metodo de desinfectar y-o inhibir el crecimiento de microor-ganismos en lentes de contacto.
DE3169105D1 (en) Lens sterilising solutions and their use
PH24628A (en) Solution containing lysozyme hydrochloride and dipotassium glycyrrhizinate
FI942815L (fi) Menetelmä korkean opasiteetin omaavan saostetun kalsiumkarbonaatin valmistamiseksi antamalla natriumkarbonaatin reagoida kalsiumhydroksidin kanssa
HU9301940D0 (en) Method for making aqueous solution of sodium hydroxide
ES2085102T3 (es) Procedimiento de fabricacion de hidroxido de sodio
ES510909A0 (es) Un procediminto para el tratamiento previo de una solucion acuosa de alimentacion de cloruro de metal alcalino en una celda electrolitica.
SE8702919D0 (sv) Forfarande for kausticering av en alkalikarbonathaltig vattenlosning
BR8605262A (pt) Processo para a recuperacao de hidroxido de sodio de um licor residual alcalino
ATE181714T1 (de) Verfahren zur herstellung von zinkstannaten
EP0205118A3 (en) Photochemical production of hydrogen from hydrogen sulfide
ES551363A0 (es) Procedimiento para fabricar carbonato de sodio anhidro denso
IT8222614A0 (it) Procedimento per la valorizzazione del molibdeno a partire da soluzioni mobilbdenifere contenenti carbonato, solfato,idrossido o carbonato acido alcalini come pure, eventualmente, uranio.
IT8422890A0 (it) Magnesio e di solfato di sodio puri procedimento per la separazione di da salamoie solfo-magnesiache. carbonato di magnesio, ossido di
SU1445280A1 (ru) Селективный травитель для граней {110} кристаллов парателлурита
ES8505510A1 (es) Procedimiento para la obtencion de un silicato con capacidad de intercambio ionico
HUT41338A (en) Process for recovering zn and base deriving from alkaline zinc baths and equipment thereto
BR8503385A (pt) Processo para a obtencao de uma base organica azotada insoluvel em agua a partir de uma solucao aquosa de bicarbonato de um metal alcalino e do cloridrato da referida base,e processo de fabricacao de carbonato de sodio
UA14459A1 (uk) Аhтацидhий засіб "кальмагіh"
ES511937A0 (es) "un procedimiento para fabricar carbonato sodico anhidro".

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 495451

Country of ref document: ES