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WO2009033436A1 - Appareil de décontamination et de désinfection de solutions aqueuses - Google Patents

Appareil de décontamination et de désinfection de solutions aqueuses Download PDF

Info

Publication number
WO2009033436A1
WO2009033436A1 PCT/CZ2008/000103 CZ2008000103W WO2009033436A1 WO 2009033436 A1 WO2009033436 A1 WO 2009033436A1 CZ 2008000103 W CZ2008000103 W CZ 2008000103W WO 2009033436 A1 WO2009033436 A1 WO 2009033436A1
Authority
WO
WIPO (PCT)
Prior art keywords
chambers
connecting hole
electrodes
discharge
disinfection
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.)
Ceased
Application number
PCT/CZ2008/000103
Other languages
English (en)
Inventor
Vaclav Babicky
Martin Clupek
Petr Lukes
Pavel Sunka
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.)
Institute of Plasma Physics Czech Academy of Sciences
Original Assignee
Institute of Plasma Physics Czech Academy of Sciences
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 Institute of Plasma Physics Czech Academy of Sciences filed Critical Institute of Plasma Physics Czech Academy of Sciences
Publication of WO2009033436A1 publication Critical patent/WO2009033436A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/4608—Treatment of water, waste water, or sewage by electrochemical methods using electrical discharges
    • 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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes

Definitions

  • the present invention relates to an apparatus for purification and treatment of water.
  • Methods of water purification and treatment by means of electrical discharges are based on generation of non-equilibrium plasma that initiates in water various physical and chemical processes such as generation of chemically active species (e.g. hydroxyl radicals, ozone, hydrogen peroxide), ultraviolet light, high-pressure Shockwaves and strong electrical field. These physical and chemical processes are capable to inactivate or degrade various microorganisms and chemical compounds dissolved in water. Electrical discharges are generated either directly in the water or in the gas phase in close proximity to the liquid surface or in both phases simultaneously. To generate electrical discharge in water a very high-localized electric field is needed for electrical breakdown of water. To accomplish this apparatuses with electrode systems producing a highly non-uniform electric field (e.g.
  • the present invention seeks to solve these problems by providing an improved apparatus for decontamination and disinfection of aqueous solutions.
  • a key of the invention is based on the principle, that DC current between electrodes flows in water through relatively small connecting hole placed between two reactor chambers filled with water. By proper choosing of connecting hole dimensions (its length and diameter) it is possible to establish in the connecting hole an electrical current of sufficient density needed for evaporation of small amount of liquid. Created inhomogenity allows electrical breakdown of water and an initiation of electrical discharge inside of the connecting hole.
  • Formed electrical discharge generates chemically active substances that initiate a variety of chemical effects, which cause decontamination and disinfection of the aqueous solution flowing through the apparatus.
  • Electrical discharge generated inside of the connecting hole strongly expands into the surrounding water and, thus, chemically active species generated by the discharge are transported also into the water outside of the discharge zone and they may initiate secondary chemical processes in relatively large volume of treated liquid. Expansion of the discharge leads to the termination of conditions required for existence of the discharge and to the interruption of the discharge current between electrodes. After the end of this process connecting hole begins to fill back with aqueous solutions and all process is repeated.
  • the present invention of the apparatus for decontamination and disinfection of aqueous solutions comprises of two separate chambers connected with at least one connecting hole, whereas in each chamber is at least one electrode and both chambers have inlet and outlet ports.
  • One electrode or more electrodes in the first chamber is/are grounded and one or more electrodes in the second chamber is/are connected to the DC high voltage power supply.
  • Connecting hole(s) is/are made in the diaphragm of the finite thickness, which separates chambers. In the case of independent chambers connecting hole(s) is/are made by tubing(s) connecting chambers.
  • Electrodes may be made from graphite, stainless steel or other conductive material.
  • Connecting hole(s) may be lined with ceramic material to enhance its/their wear resistance.
  • High voltage capacitor may be connected in parallel to the DC power supply.
  • the present invention of the apparatus for decontamination and disinfection of aqueous solutions is characterized in that there is no need of a high voltage pulse power supply and the apparatus is operated by DC high voltage power supply, which total costs are much lower than of the pulsed power supply; the apparatus is operated at the pulse regime although it is charged by DC power supply, pulses are generated by physical processes in the device; chemically active species generated by the discharge are expanded into relatively large volume of treated liquid, which provides higher efficiency of induced decontamination and disinfection effect caused by the apparatus of the present invention.
  • the apparatus provided according to the present invention eliminates the main limitations of currently existing electrical discharge systems that were proposed for water treatment applications. There is no need for complex and expensive high voltage pulse power supply to operate the present apparatus. Design of the apparatus allows deposition relatively high applied power into the discharge. Physical processes induced by the expansion of the discharge from the connecting hole into the surrounding water accelerate transport chemically active species generated by the discharge in the direction of connecting hole axis and their penetration into large volume of treated water.
  • Two chambers 1_, 2 provided with inlet 3 and outlet 4 ports are filled with aqueous solution and separated from each other by dielectric diaphragm 7.
  • the electrode 5 in second chamber I is connected to the DC high voltage power source K), and high voltage capacitor U_ is connected in parallel to the DC power source JO to lower its output impedance.
  • Chambers 1,2 are connected through a connecting hole 9, which is lined with ceramic material 8. Processes that were described in the section "Disclosure of the invention" lead to a periodic generation of an electrical discharge, which generates chemical active substances, whose next action to liquid, which cause decontamination and disinfection of the aqueous solution in chambers 1, 2.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

L'invention concerne un appareil de décontamination et de désinfection de solutions aqueuses constitué de deux chambres (1,2) séparées remplies de solution aqueuse qu'on fait circuler. Des électrodes (5,6) composées d'une électrode de masse et d'une seconde électrode raccordée à une source haute tension CC, sont placées dans les chambres (1,2). Les chambres (1,2) sont reliées par un orifice de connexion (9) d'une longueur limitée. Une décharge électrique est créée dans l'orifice de connexion, entre les électrodes (5,6) et génère des espèces chimiquement actives se diffusant dans l'eau qui circule à travers l'appareil. Sous l'action de processus chimiques et physiques primaires provoqués par la décharge, et de processus chimiques secondaires subséquents se produisant dans la solution aqueuse présente dans les chambres (1,2), l'eau traitée par cet appareil est décontaminée et désinfectée.
PCT/CZ2008/000103 2007-09-12 2008-09-11 Appareil de décontamination et de désinfection de solutions aqueuses Ceased WO2009033436A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ20070628A CZ301074B6 (cs) 2007-09-12 2007-09-12 Zarízení pro dekontaminaci a dezinfekci vodných roztoku
CZPV2007-628 2007-09-12

Publications (1)

Publication Number Publication Date
WO2009033436A1 true WO2009033436A1 (fr) 2009-03-19

Family

ID=40298719

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CZ2008/000103 Ceased WO2009033436A1 (fr) 2007-09-12 2008-09-11 Appareil de décontamination et de désinfection de solutions aqueuses

Country Status (2)

Country Link
CZ (1) CZ301074B6 (fr)
WO (1) WO2009033436A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102595756A (zh) * 2012-03-15 2012-07-18 大连海事大学 一种气液混合介质阻挡放电的发生装置及发生方法
WO2012128771A1 (fr) * 2011-03-24 2012-09-27 Empire Technology Development Llc Procédé de traitement d'un fluide et système utilisant un générateur à fluide pour traiter l'eau
JP2014079737A (ja) * 2012-09-28 2014-05-08 Daikin Ind Ltd 水処理装置
US20150239755A1 (en) * 2012-09-28 2015-08-27 Daikin Industries, Ltd. Discharge unit
US20150251935A1 (en) * 2012-09-28 2015-09-10 Daikin Industries, Ltd. Water treatment device
JP2015188845A (ja) * 2014-03-28 2015-11-02 ダイキン工業株式会社 放電ユニット
JP2015188844A (ja) * 2014-03-28 2015-11-02 ダイキン工業株式会社 放電装置
JP2015188836A (ja) * 2014-03-28 2015-11-02 ダイキン工業株式会社 水処理ユニット
JP2015188834A (ja) * 2014-03-28 2015-11-02 ダイキン工業株式会社 水処理ユニット
JP2015188839A (ja) * 2014-03-28 2015-11-02 ダイキン工業株式会社 水処理装置
WO2018168868A1 (fr) * 2017-03-17 2018-09-20 ダイキン工業株式会社 Dispositif de traitement d'eau et dispositif d'humidification
WO2018180910A1 (fr) * 2017-03-29 2018-10-04 ダイキン工業株式会社 Dispositif d'évacuation
JP2019198817A (ja) * 2018-05-15 2019-11-21 パナソニックＩｐマネジメント株式会社 液体処理装置
JP2020081993A (ja) * 2018-11-28 2020-06-04 ダイキン工業株式会社 水処理装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000093972A (ja) * 1998-09-25 2000-04-04 Masayuki Sato 液体処理方法及び液体処理装置
JP2001058179A (ja) * 1999-08-24 2001-03-06 Kobe Steel Ltd 水処理法及び水処理装置
US6228266B1 (en) * 1997-07-10 2001-05-08 Lg Industrial Systems Co., Ltd. Water treatment apparatus using plasma reactor and method thereof
WO2002098799A1 (fr) * 2001-06-07 2002-12-12 Splits Technologies Limited Traitement de liquides

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ159696A3 (en) * 1996-05-31 1997-08-13 Ustav Fyziky Plazmatu Method of generating espacious corona discharge in water and apparatus for making the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6228266B1 (en) * 1997-07-10 2001-05-08 Lg Industrial Systems Co., Ltd. Water treatment apparatus using plasma reactor and method thereof
JP2000093972A (ja) * 1998-09-25 2000-04-04 Masayuki Sato 液体処理方法及び液体処理装置
JP2001058179A (ja) * 1999-08-24 2001-03-06 Kobe Steel Ltd 水処理法及び水処理装置
WO2002098799A1 (fr) * 2001-06-07 2002-12-12 Splits Technologies Limited Traitement de liquides

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012128771A1 (fr) * 2011-03-24 2012-09-27 Empire Technology Development Llc Procédé de traitement d'un fluide et système utilisant un générateur à fluide pour traiter l'eau
CN102595756A (zh) * 2012-03-15 2012-07-18 大连海事大学 一种气液混合介质阻挡放电的发生装置及发生方法
JP2014079737A (ja) * 2012-09-28 2014-05-08 Daikin Ind Ltd 水処理装置
JP2014079741A (ja) * 2012-09-28 2014-05-08 Daikin Ind Ltd 水処理装置
US20150239755A1 (en) * 2012-09-28 2015-08-27 Daikin Industries, Ltd. Discharge unit
US20150251935A1 (en) * 2012-09-28 2015-09-10 Daikin Industries, Ltd. Water treatment device
US9334179B2 (en) * 2012-09-28 2016-05-10 Daikin Industries, Ltd. Water treatment device
US9328002B2 (en) * 2012-09-28 2016-05-03 Daikin Industries, Ltd. Discharge unit
JP2015188839A (ja) * 2014-03-28 2015-11-02 ダイキン工業株式会社 水処理装置
JP2015188834A (ja) * 2014-03-28 2015-11-02 ダイキン工業株式会社 水処理ユニット
JP2015188836A (ja) * 2014-03-28 2015-11-02 ダイキン工業株式会社 水処理ユニット
JP2015188844A (ja) * 2014-03-28 2015-11-02 ダイキン工業株式会社 放電装置
JP2015188845A (ja) * 2014-03-28 2015-11-02 ダイキン工業株式会社 放電ユニット
WO2018168868A1 (fr) * 2017-03-17 2018-09-20 ダイキン工業株式会社 Dispositif de traitement d'eau et dispositif d'humidification
JP2018153804A (ja) * 2017-03-17 2018-10-04 ダイキン工業株式会社 水処理装置および加湿装置
WO2018180910A1 (fr) * 2017-03-29 2018-10-04 ダイキン工業株式会社 Dispositif d'évacuation
JP2018167142A (ja) * 2017-03-29 2018-11-01 ダイキン工業株式会社 放電装置
JP2019198817A (ja) * 2018-05-15 2019-11-21 パナソニックＩｐマネジメント株式会社 液体処理装置
JP7113349B2 (ja) 2018-05-15 2022-08-05 パナソニックＩｐマネジメント株式会社 液体処理装置
JP2020081993A (ja) * 2018-11-28 2020-06-04 ダイキン工業株式会社 水処理装置

Also Published As

Publication number Publication date
CZ301074B6 (cs) 2009-10-29
CZ2007628A3 (cs) 2009-03-25

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