US3910829A - Method and apparatus for the disinfection of liquids by anodic oxidation and preceding reduction - Google Patents

Method and apparatus for the disinfection of liquids by anodic oxidation and preceding reduction Download PDF

Info

Publication number
US3910829A
US3910829A US473377A US47337774A US3910829A US 3910829 A US3910829 A US 3910829A US 473377 A US473377 A US 473377A US 47337774 A US47337774 A US 47337774A US 3910829 A US3910829 A US 3910829A
Authority
US
United States
Prior art keywords
cell
compartment
liquid
electrode
anode
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
US473377A
Other languages
English (en)
Inventor
Volker Eibl
August Reis
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.)
Sachs Systemtechnik GmbH
Original Assignee
Sachs Systemtechnik GmbH
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 Sachs Systemtechnik GmbH filed Critical Sachs Systemtechnik GmbH
Application granted granted Critical
Publication of US3910829A publication Critical patent/US3910829A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/03—Electric current
    • A61L2/035—Electrolysis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection

Definitions

  • This invention is directed to a method of disinfecting liquids, preferably water-containing liquids, by anodic oxidation, wherein the liquid to be disinfected is exposed in a first electrolytic cell having a cathode and an anode within the anode compartment to an electric current, cathode compartment and anode compartment being separated by a diaphragm.
  • This method consists in exposing the liquid to be disinfected to a reducing agent before the treatment in the electrolytic cell, i.e., enriching the liquid to be disinfected with electrons.
  • the disinfecting effect in the anodic oxidation is essentially improved, so that the size of the apparatus and therewith construction expenses are reduced; furthermore there is achieved the advantage that the liquid to be disinfected stays in the apparatus for a shorter time, which guarantees a reduction of separations of the electrode material and thus a disinfecting effect which is substantially free of negative results.
  • the method according to this invention is especially simply to realize if the cathode compartment of an electrolytic cell is used as the reduction agent. In this event it is not necessary to add any reagents to the liquid so as to obtain a reduction effect. In this connection it is of some advantage to make such an arrangement that a plurality of electrolytic cells are passed subsequently, whereby the liquid flows through the cathode compartment of the first cell and through the anode compartments of the following cells.
  • this invention relates to an apparatus for performing the afore-mentioned method.
  • Such apparatus comprises a plurality of electrolytic cells arranged in series, each electrolytic cell being provided with a cathode compartment and an anode compartment, at least one of said cells being provided with an inlet and an outlet in its cathode compartment, the rest of the electrolytic cell being provided with respective inlets and outlets in their anode compartment, the cells being arranged in series such that the outlet from the cathode compartment of said one cell is connected to the inlet of the anode compartment of another cell, possible further cells being connected with the inlet of their anode compartment to the outlet of the anode compartment of the preceding cell and with their outlet to the inlet of the anode compartment of the subsequent cell.
  • This allows a very simple construction having substantially identical parts and saving space.
  • the space in a container 1 is divided into two compartments 6, 7 by a diaphragm 8.
  • the liquid to be purified is fed to the compartment 6 of the first cell through an inlet duct 9, caused to flow from the compartment 6 of the first cell to the compartment 7 of the second cell through a connecting line 10. It enters the compartment 7 of the third cell from the compartment 7 of the second cell through a connecting line 11, and is discharged from the compartment 7 of the third cell through an outlet duct 12.
  • Each compartment 6 contains an electrode 4 connected by a conductor 5 to the negative pole of a source of electric current.
  • Each compartment 7 contains an electrode 2 connected to the positive pole of the current source by a conductor 3.
  • the basic function of the apparatus is that before the very anodic oxidation there takes place a reduction process in the cathode compartment 6 of the first electrolytic cell for the purpose of disinfection within the anode compartments 7 of the second and the third electrolytic cell.
  • the effect of the anodic oxidation turned out to have been improved in this way, in particular there is a more rapid cut-down of number of germs within a relatively short period.
  • a comparison of the apparatus according to this in vention on the one hand with the system of a simple liquid flow through the anode compartment of an electrolytic cell on the other hand has shown essential advantages achieved by this invention.
  • the circulation test (this means the duct 12 is connected with duct 9 by a pump to form a closed circulation), in particular up to a duration of four minutes, results in a considerably greater cut-down of the number of germs when employing the method according to this invention.
  • the diaphragma may be of any known material.
  • disinfection as used in the specification and in the claims is to comprise also decontammination and detoxication.
  • a method of purifying an aqueous liquid contaminated with microorganisms which comprises:

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electrochemistry (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
US473377A 1973-06-09 1974-05-28 Method and apparatus for the disinfection of liquids by anodic oxidation and preceding reduction Expired - Lifetime US3910829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2329630A DE2329630C3 (de) 1973-06-09 1973-06-09 Verfahren und Einrichtung zur Entkeimung von Flüssigkeiten durch anodische Oxydation mit vorheriger Reduktion

Publications (1)

Publication Number Publication Date
US3910829A true US3910829A (en) 1975-10-07

Family

ID=5883642

Family Applications (1)

Application Number Title Priority Date Filing Date
US473377A Expired - Lifetime US3910829A (en) 1973-06-09 1974-05-28 Method and apparatus for the disinfection of liquids by anodic oxidation and preceding reduction

Country Status (11)

Country Link
US (1) US3910829A (enrdf_load_stackoverflow)
JP (1) JPS5032763A (enrdf_load_stackoverflow)
AR (1) AR211842A1 (enrdf_load_stackoverflow)
BR (1) BR7404715D0 (enrdf_load_stackoverflow)
DE (1) DE2329630C3 (enrdf_load_stackoverflow)
EG (1) EG11485A (enrdf_load_stackoverflow)
FR (1) FR2232519B3 (enrdf_load_stackoverflow)
GB (1) GB1469996A (enrdf_load_stackoverflow)
IN (1) IN141722B (enrdf_load_stackoverflow)
IT (1) IT1014301B (enrdf_load_stackoverflow)
OA (1) OA04714A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4620914A (en) * 1985-07-02 1986-11-04 Energy Research Corporation Apparatus for purifying hydrogen
US4690741A (en) * 1984-10-12 1987-09-01 Cape Cod Research, Inc. Electrolytic reactor and method for treating fluids
DE4318628A1 (de) * 1992-06-04 1993-12-09 N Proizv Ob Edinenie Ekran Vni Verfahren zur Wasseraufbereitung
RU2235689C1 (ru) * 2003-09-26 2004-09-10 Кузнецов Григорий Михайлович Способ и устройство электрохимической обработки жидкости

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629010A1 (de) * 1986-08-27 1988-03-03 Siemens Ag Keimarme dentalausruestung
DE3867284D1 (de) * 1987-03-11 1992-02-13 Omco Co Ltd Wasserelektrolyse-vorrichtung.
DE102010042444A1 (de) * 2010-10-14 2012-04-19 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur Abtrennung von Ionen aus Abwässern, insbesondere aus industriellen Prozesswässern

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1603298A (en) * 1924-12-17 1926-10-19 Western Electric Co Method for and means of separating electrolytes
US2882210A (en) * 1955-07-01 1959-04-14 George N Jenks Electrolytic water purification process
US3135674A (en) * 1960-06-06 1964-06-02 Electric Storage Battery Co Method and apparatus for the purification of water

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5338712B2 (enrdf_load_stackoverflow) * 1971-12-23 1978-10-17

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1603298A (en) * 1924-12-17 1926-10-19 Western Electric Co Method for and means of separating electrolytes
US2882210A (en) * 1955-07-01 1959-04-14 George N Jenks Electrolytic water purification process
US3135674A (en) * 1960-06-06 1964-06-02 Electric Storage Battery Co Method and apparatus for the purification of water

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4690741A (en) * 1984-10-12 1987-09-01 Cape Cod Research, Inc. Electrolytic reactor and method for treating fluids
US4620914A (en) * 1985-07-02 1986-11-04 Energy Research Corporation Apparatus for purifying hydrogen
DE4318628A1 (de) * 1992-06-04 1993-12-09 N Proizv Ob Edinenie Ekran Vni Verfahren zur Wasseraufbereitung
US5540819A (en) * 1992-06-04 1996-07-30 Nauchno-Proizvodstvennoe Obiedinenie "Ekran" Vsesojuzny Nauchno-Issledovatelsky I Ispytatelny Institut Meditsinskoi Tekhniki Water treatment method
RU2235689C1 (ru) * 2003-09-26 2004-09-10 Кузнецов Григорий Михайлович Способ и устройство электрохимической обработки жидкости

Also Published As

Publication number Publication date
DE2329630A1 (de) 1975-01-23
IN141722B (enrdf_load_stackoverflow) 1977-04-09
AR211842A1 (es) 1978-03-31
BR7404715D0 (pt) 1975-01-28
EG11485A (en) 1978-12-31
DE2329630B2 (de) 1979-08-09
FR2232519A1 (enrdf_load_stackoverflow) 1975-01-03
IT1014301B (it) 1977-04-20
OA04714A (fr) 1980-08-31
GB1469996A (en) 1977-04-14
DE2329630C3 (de) 1980-04-10
FR2232519B3 (enrdf_load_stackoverflow) 1977-04-08
JPS5032763A (enrdf_load_stackoverflow) 1975-03-29

Similar Documents

Publication Publication Date Title
US2777811A (en) Treatment of electrolytic solutions
EP1090880A1 (en) Electrolytic ozone generating method, system and ozone water producing system
GB1030090A (en) Electrodialysis of electrolytic solutions
US3910829A (en) Method and apparatus for the disinfection of liquids by anodic oxidation and preceding reduction
GB694223A (en) Apparatus for modifying the chemical composition of substances by ion transfer
EP0281940A1 (de) Verfahren zum Abbau von organischen Stoffen und/oder von Keimen in vorbehandeltem Speisewasser für Reinstwasserkreisläufe
CA2061723A1 (en) Method for the combined removal and destruction of nitrate ions
ATE247604T1 (de) Elektrochemische behandlung von flüssigkeiten z.b. wasser
GB1268504A (en) Electroosmotic concentration, purification, and desalting
US3827961A (en) Method for purifying ionically conducting solutions
GB1467862A (en) Method of and an apparatus for disinfecting liquids by anodic oxidation with a silver anode
DE1913411C3 (de) MembcanzeUe zur Elektrophorese von Substanzgemischen
US3458428A (en) Continuous particle electrophoresis apparatus having improved particle band stability
DE59208592D1 (de) Verfahren, mittel und vorrichtung zum elektrodialytischen regenerieren des elektrolyten eines galvanischen bades oder dergl.
KR840007856A (ko) 묽은 부식성 알카리 수용액의 전해방법 및 그 장치
ATE68104T1 (de) Kontinuierliches scheidungsverfahren durch elektrophorese und elektroosmose von elektrisch geladenen pulverisierten feststoffen.
RU195077U1 (ru) Реактор магнитно-плазменной обработки жидкостей
DE3830623A1 (de) Verfahren zur bestimmung des totalen organischen kohlenstoffgehaltes in wasser
GB764067A (en) Improvements in electrolytic processes
US1941816A (en) Electrolytic method and cell for the decomposition of water
SU1723047A1 (ru) Способ очистки сточных вод от растворенных примесей
FR2316196A1 (fr) Dispositif electrochimique d'epuration d'effluents industriels
GB1104747A (en) Electrolysis apparatus
SU376114A1 (ru) Электролизер для электрохимической обработки
SU899486A1 (ru) Способ очистки воды