GB809685A - Improvements relating to water demineralizing units particularly for domestic supplysystems - Google Patents
Improvements relating to water demineralizing units particularly for domestic supplysystemsInfo
- Publication number
- GB809685A GB809685A GB14731/56A GB1473156A GB809685A GB 809685 A GB809685 A GB 809685A GB 14731/56 A GB14731/56 A GB 14731/56A GB 1473156 A GB1473156 A GB 1473156A GB 809685 A GB809685 A GB 809685A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- diaphragm
- anode
- upwards
- ion
- 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
Links
Classifications
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J47/00—Ion-exchange processes in general; Apparatus therefor
- B01J47/02—Column or bed processes
- B01J47/06—Column or bed processes during which the ion-exchange material is subjected to a physical treatment, e.g. heat, electric current, irradiation or vibration
- B01J47/08—Column or bed processes during which the ion-exchange material is subjected to a physical treatment, e.g. heat, electric current, irradiation or vibration subjected to a direct electric current
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/4604—Treatment of water, waste water, or sewage by electrochemical methods for desalination of seawater or brackish water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/46115—Electrolytic cell with membranes or diaphragms
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
809,685. Softening water; ion-exchange apparatus. GENERAL ELECTRIC CO. May 11, 1956 [May 12, 1955 ; June 29, 1955], No. 14731/56. Class 46. [Also in Groups XI and XXXVI]. Water intended for a domestic supply system and derived from a hard-water source is passed at 93 into a perforated distribution ring 96 and falls thence on to a bed of mixed ion-exchange resins occupying an annular chamber 32 lying between inner and outer diaphragms 31 and 29 respectively. Demineralized water emerges into a lower compartment 28 whence the bulk passes out at 103, while a minor proportion passes through a check valve 111 and upwards between the diaphragm 31 and an anode 33 (thus forming the anolyte), and a further minor proportion passes through a check valve 109 and upwards between the diaphragm 29 and the casing 11 constituting the earthed cathode (thus forming the catholyte). The demineralization is performed mainly by ion-exchange and to a less extent by electrodialysis. During the time that water is not being withdrawn from the apparatus the ion-exchange bed is being regenerated by electrolytically-produced hydrogen and hydroxyl ions while cations and anions previously present in the raw water are conveyed by electrodialysis from the resins into the catholyte moving upwards in the catholyte chamber 30 and into the anolyte moving upwards in the anolyte chamber 34 respectively. These liquids meet at the top of a cylindrical baffle 87 between the anode 33 and a dome 49, 53 and flow downwards into a mixing chamber 116, whence they leave the apparatus at 114. Small amounts of oxygen and hydrogen evolved at the anode and cathode respectively pass upwards into an upper dome section 50 where they combine harmlessly in the presence of a mass of catalyst 118 contained in a bag. The diaphragm 29 comprises a perforated outer sleeve of mild steel and two inner sleeves, e.g. of wood, preferably poplar ; the outer sleeve is coated with insulating material. The diaphragm 31 comprises a perforated inner sleeve of, e.g. thermoplastic resin and an outer sleeve, e.g. of wood, preferably poplar. The D.C. potential maintained between the anode and cathode may be provided by an A.C source and rectifier, the A.C. source also providing current for electric heating elements on the outside of a water storage tank through which the demineralized water passes on its way to use (see Group XI). Reference has been directed by the Comptroller to Specification 776,469 [Group XXXVI].
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US809685XA | 1955-05-12 | 1955-05-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB809685A true GB809685A (en) | 1959-03-04 |
Family
ID=22160825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14731/56A Expired GB809685A (en) | 1955-05-12 | 1956-05-11 | Improvements relating to water demineralizing units particularly for domestic supplysystems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB809685A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0163605A1 (en) * | 1984-05-17 | 1985-12-04 | Battelle Memorial Institute | Process and device for regenerating an ion exchange resin |
EP0462523A1 (en) * | 1990-06-20 | 1991-12-27 | Heinz Zimmermann | Apparatus and process for water treatment |
US5364527A (en) * | 1990-06-20 | 1994-11-15 | Heinz Zimmermann | Apparatus and process for treating water |
WO2000064325A2 (en) * | 1999-04-22 | 2000-11-02 | Eltek S.P.A. | Household appliance using water, namely a washing machine, with improved device for softening the water |
WO2001030229A1 (en) * | 1999-04-22 | 2001-05-03 | Eltek S.P.A. | Household appliance using water, namely a washing machine, with improved device for softening the water |
ITUB20153522A1 (en) * | 2015-09-10 | 2017-03-10 | Eltek Spa | Hydraulic control and treatment device, particularly for equipment or hydraulic systems |
-
1956
- 1956-05-11 GB GB14731/56A patent/GB809685A/en not_active Expired
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0163605A1 (en) * | 1984-05-17 | 1985-12-04 | Battelle Memorial Institute | Process and device for regenerating an ion exchange resin |
EP0462523A1 (en) * | 1990-06-20 | 1991-12-27 | Heinz Zimmermann | Apparatus and process for water treatment |
US5364527A (en) * | 1990-06-20 | 1994-11-15 | Heinz Zimmermann | Apparatus and process for treating water |
WO2000064325A2 (en) * | 1999-04-22 | 2000-11-02 | Eltek S.P.A. | Household appliance using water, namely a washing machine, with improved device for softening the water |
WO2001030229A1 (en) * | 1999-04-22 | 2001-05-03 | Eltek S.P.A. | Household appliance using water, namely a washing machine, with improved device for softening the water |
WO2000064325A3 (en) * | 1999-04-22 | 2001-06-21 | Eltek Spa | Household appliance using water, namely a washing machine, with improved device for softening the water |
US6766812B1 (en) | 1999-04-22 | 2004-07-27 | Eltek S.P.A. | Household appliance using water, namely, a washing machine, with improved device for reducing the water hardness |
US6823878B1 (en) | 1999-04-22 | 2004-11-30 | Eltek S.P.A. | Household appliance using water, namely a washing machine, with improved device for softening the water |
ITUB20153522A1 (en) * | 2015-09-10 | 2017-03-10 | Eltek Spa | Hydraulic control and treatment device, particularly for equipment or hydraulic systems |
WO2017042656A1 (en) * | 2015-09-10 | 2017-03-16 | Eltek Spa | Hydraulic control and treatment device, particularly for hydraulic apparatuses or systems |
US10981804B2 (en) | 2015-09-10 | 2021-04-20 | Eltek S.P.A. | Hydraulic control and treatment device, particularly for hydraulic apparatuses or systems |
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