WO2000039030A1 - Systeme de traitement des eaux usees - Google Patents

Systeme de traitement des eaux usees Download PDF

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Publication number
WO2000039030A1
WO2000039030A1 PCT/KR1999/000097 KR9900097W WO0039030A1 WO 2000039030 A1 WO2000039030 A1 WO 2000039030A1 KR 9900097 W KR9900097 W KR 9900097W WO 0039030 A1 WO0039030 A1 WO 0039030A1
Authority
WO
WIPO (PCT)
Prior art keywords
wastewater
housing
electrode rods
treatment system
switching control
Prior art date
Application number
PCT/KR1999/000097
Other languages
English (en)
Inventor
Sok Lim Bae
Original Assignee
Kim, Young, Tae
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 Kim, Young, Tae filed Critical Kim, Young, Tae
Publication of WO2000039030A1 publication Critical patent/WO2000039030A1/fr

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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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • 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
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • 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
    • C02F2001/007—Processes including a sedimentation step

Definitions

  • the present invention relates, in general, to a wastewater treatment system and, more particularly, to an improvement in such a system to promote the reaction of ozone used for purification of wastewater and to promote oxidation of contaminants laden in the wastewater, thus quickly completing the treatment of such wastewater.
  • an ionization system using electric disturbance effect comprises a sedimentation tank made of an insulation material.
  • An electrode unit is installed at a position under the sedimentation tank, while a spherical material of an aluminum alloy is set in the electrode unit.
  • wastewater flows through the electrode unit while being electrolyzed, so that the wastewater is oxidized, reduced, decomposed and generates gases, thus being purified to be free from contaminants.
  • the known ionization system regrettably consumes the electrode unit due to oxidation of said unit, thus forcing a user to repeatedly change the electrode unit with a new one.
  • Another problem of the above system resides in that the system exceedingly wastes electric power during an operation. The system is thus poor in economic terms.
  • U.S. Patent No. 4,012,310 discloses an electrostatic water treatment system using a pulse wave.
  • the above electrostatic system accomplishes a desired operational effect when it is used for treating water of which the degree of pollution is somewhat low.
  • the above system is not designed to desirably ionize charged materials, so that the system fails to completely eliminate scales from wastewater.
  • the inventor of this invention proposed two wastewater treatment systems in Korean Patent Appln. Nos. 91-4406 (Publication No. 94-2337) and 91-22327 (Publication No. 94-1946) .
  • the operational theory is similar to that of the main treatment unit 1 (see Fig. 2) included in the system of this invention. That is, the two systems are individually designed to decompose the hydrogen bond of clustered wastewater using an electric field of an alternated high-tension current, thus changing the clustered structure of water into micro-molecular structure.
  • the clustered structure of water is formed due to the hydrogen bond caused by the Van der Waals force which is the force interacting between the hydrogen atoms of water or natural liquid.
  • the system disclosed in Korean Patent Appln. No. 91- 22327 (Publication No. 94-1946), causes an ionization of water due to electric field of alternated high-tension current, thus restricting a bonding of the materials with the local battery voltage of scales formed in a pipe line. Therefore, the system effectively prevents formation of scales in the pipe line and effectively eliminates the scales from said pipe line.
  • an object of the present invention is to provide a wastewater treatment system, which electrically disturbs charged colloidal particles in wastewater using an electric field between insulated electrodes and introduces pressurized gas from an ozonizer into water so as to promote oxidation and decomposition of contaminants in the water, thus effectively treating wastewater while preventing electrodes from being consumed due to oxidation and conserving electric power different from typical ionization systems, and which easily and quickly oxidates and removes contaminants from water using activated oxygen.
  • the present invention provides a wastewater treatment system, comprising a pre-sedimentation tank and an ozonizer, further comprising: a housing used for receiving a liquid mixture of wastewater from the pre-sedimentation tank and ozone from the ozonizer; at least two electrode rods set in the housing and individually supplied with a voltage, thus allowing the liquid mixture to be stored with an electric charge and thereby promoting an oxidation of the wastewater; a power supply used for supplying positive and negative voltages to the electrode rods; a switching control unit connected to both the two electrode rods and the power supply and adapted for switching the positive and negative voltages for the two electrode rods, thus allowing the positive and negative voltages to be alternately supplied to the two electrode rods; and a discharge unit provided between the switching control unit and the housing and adapted for momentarily discharging the electric charge from the housing in response to a discharge signal output from the switching control unit.
  • the above housing is externally provided with inlet and outlet ports. The inlet port is used
  • An insulation layer having a predetermined thickness, is externally formed on each of the above electrode rods through painting, covering and coating processes, thus preventing an electric current from flowing between the electrode rods.
  • the above switching control unit comprises: a controller used for outputting alternate switching control signals having predetermined frequencies; and a switching unit used for alternately applying the positive and negative voltages of the power supply to the electrode rods in response to the switching control signals from the controller.
  • an electric field is formed between the two electrode rods by either the positive or negative voltage from the power supply, thus allowing the liquid mixture to be stored with an electric charge.
  • FIG. 1 is a block diagram, showing the construction of a wastewater treatment system in accordance with the invention
  • Fig. 2 is a perspective view of the main treatment unit of the system according to the invention.
  • Fig. 1 is a block diagram, showing the construction of a wastewater treatment system in accordance with the invention.
  • Fig. 2 is a perspective view of the main treatment unit of the system according to the invention.
  • the system of this invention comprises a safe main treatment unit which is operated using a high-tension current. Even though the above unit uses such a high-tension current, the unit preferably conserves electric power during an operation.
  • water flows around two electrodes.
  • the two electrodes individually and externally coated with an insulation layer, are momentarily and repeatedly applied with a high- tension current under the control of a controller, thus forming a strong electric field between them.
  • the system thus maximizes the OH radical concentration in water due to a large quantity of OH groups generated from water and introduces ozone from an ozonizer into the water, thus oxidating contaminants of water and thereby effectively purifying the water.
  • the main treatment unit 1 of the system comprises a sealed housing 2 which receives a liquid mixture of wastewater from a pre- sedimentation tank and ozone from an ozonizer. That is, wastewater passes through the housing 2 during an operation of the system.
  • the housing 2 has an oval cross-section. However, it should be understood that the cross-section of the housing 2 may be changed into another configuration in accordance with designing conditions of the system.
  • Inlet and outlet ports 3 and 4 are provided on the housing 2 at opposite positions for introducing and discharging water into and from the housing 2.
  • One C-electrode 10 is provided on the housing 2. The above C-electrode 10 is connected to a controller or a CPU (central processing unit) 11.
  • Two electrode rods having a cylindrical configuration and externally coated with an insulation layer, are longitudinally and parallely set in the housing 2.
  • one is an A-electrode rod 6 having an A-electrode 6' with the other being a B- electrode rod 7 having a B-electrode 7'.
  • each end of the housing 2 is sealed by an end member 8.
  • the main treatment unit 1 is connected to the CPU 11 as shown in Fig. 1.
  • the CPU 11 generates switching control signals having predetermined frequencies ranged from 10Hz to lKHz.
  • the above switching control signals comprise at least three different signals.
  • the above unit 1 also has a high voltage power supply 12, a switching unit 13 and a discharge unit 14.
  • the high voltage power supply 12 converts utility AC power into DC drive power of T 500V - 5,000 V prior to outputting the power.
  • the above power supply 12 has a ground terminal.
  • the switching unit 13 alternately applies the differently polarized DC drive power to the A- and B- electrodes 6' and 7' in response to the switching control signals from the CPU 11, thus charging or discharging a predetermined electric charge to or from wastewater in the housing 2.
  • the CPU 11 and the switching unit 13 form a switching control unit of the system.
  • the A- and B-electrodes 6' and 7' are supplied with the differently polarized DC drive power, thus allowing a liquid mixture in the housing 2 to be momentarily stored with an electric charge.
  • the discharge unit 14 is operated in accordance with a switching operation of the switching unit 13. Of course, the above switching unit 13 is operated in response to the switching control signals output from the CPU 11.
  • the above discharge unit 14 is used for momentarily discharging one or two polar electric charges from wastewater in the housing 2 before a next charging operation is started.
  • the colloid particles of wastewater are intrinsically stored with positive or negative electric charge.
  • a dissociation of positively or negatively charged colloid particles forms H + groups and OH " groups.
  • the H + groups and OH " groups form an electric double layer due to an electrostatic bonding of them.
  • the colloid particles are thus prevented from an aggregation due to electrostatic repulsive force interacting between the neighboring same polar charges.
  • the system of this invention removes such an electrostatic repulsive force using electric disturbance effect, thus effectively removing contaminants from wastewater.
  • the CPU 11 When the CPU 11 is turned on, the system repeatedly performs the above-mentioned operation while performing an agitating operation. In such a case, the CPU 11 outputs switching control signals having frequencies ranged from 10Hz to lKHz in accordance with the kinds of liquid to be processed. In addition, the configuration and number of the electrode rods may be changed in accordance with the kinds and concentration of wastewater to be processed.
  • the wastewater treatment system may be embodied in several styles in accordance with the kinds and pollution level of wastewater.
  • a preferred embodiment of the system has the following construction.
  • the inlet port of the main treatment unit 1 is connected to both a pre- sedimentation tank and an ozonizer. That is, the ozonizer is connected to the inlet port of the unit 1 through a gas line, with the inlet port being also connected to the pre-sedimentation tank through a liquid line.
  • the outlet port of the main treatment unit 1 is connected to a scrubber. The scrubber is, thereafter, connected to a post-sedimentation tank, so that processed water is finally discharged from the post-sedimentation tank.
  • the present invention provides a wastewater treatment system of which the main treatment system is designed to save electric power.
  • the system thus remarkably reduces the management cost in comparison with typical systems which exceedingly consume electric power while forming OH radicals in liquid.
  • two electrodes, individually and externally coated with an insulation layer are momentarily and repeatedly applied with a high-tension current under the control of a CPU, thus forming a strong electric field between them.
  • the system thus maximizes the OH radical concentration in liquid due to a large quantity of OH groups generated from the liquid and introduces ozone or activated ozone from an ozonizer into the liquid, thus oxidating contaminants of the liquid and thereby effectively purifying the liquid.
  • the system of this invention effectively oxidates and decomposes wastewater while preventing oxidation loss of electrodes or exceeding consumption of electric power.
  • Another advantage of the system resides in that the system reduces cost and area for installing the system, and conserves time and cost while processing wastewater.

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)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

L'invention concerne un système de traitement des eaux usées comprenant un système de traitement principal conçu pour économiser de l'énergie. Ce système permet donc de réduire considérablement les coûts de gestion par rapport aux systèmes traditionnels, qui consomment une quantité excessive d'énergie électrique et forment des radicaux OH dans le liquide. Dans le système de cette invention, un courant haute tension est momentanément et successivement appliqué, sous le contrôle d'une unité UCT, à deux électrodes qui présentent chacune un revêtement superficiel d'une couche isolante, de sorte qu'un champ électrique intense se forme entre ces électrodes. Ainsi, le système de cette invention maximise la concentration de radicaux OH dans le liquide, concentration due à une grande quantité de groupes OH générés par ce liquide, et introduit de l'ozone ou de l'ozone activée dans ce liquide par l'intermédiaire d'un ozoneur, afin d'oxyder les impuretés dudit liquide et donc de purifier celui-ci.
PCT/KR1999/000097 1998-12-26 1999-03-03 Systeme de traitement des eaux usees WO2000039030A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019980058875A KR100321629B1 (ko) 1998-12-26 1998-12-26 폐수정화처리장치
KR1998/58875 1998-12-26

Publications (1)

Publication Number Publication Date
WO2000039030A1 true WO2000039030A1 (fr) 2000-07-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR1999/000097 WO2000039030A1 (fr) 1998-12-26 1999-03-03 Systeme de traitement des eaux usees

Country Status (2)

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KR (1) KR100321629B1 (fr)
WO (1) WO2000039030A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005105679A1 (fr) * 2004-05-04 2005-11-10 Aqon Umweltengineering Gmbh Dispositif de purification d'eaux usees et procede correspondant

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100477203B1 (ko) * 2002-04-08 2005-03-21 곽종운 라디칼산화수 생성장치, 라디칼산화수 및 이를 이용한수처리시스템
KR100529749B1 (ko) * 2002-12-09 2005-11-22 (주) 이오 고전압 및 고주파 펄스방식의 오염물질 처리용 전자발생장치
CN109796096B (zh) * 2019-03-22 2021-08-06 大连理工大学 一种基于多阵列式微放电的直饮水处理装置及方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073712A (en) * 1976-11-19 1978-02-14 Electrostatic Equipment Company Electrostatic water treatment
US4384943A (en) * 1980-09-11 1983-05-24 The University Of Virginia Alumni Patents Foundation Fluid treatment
US4719018A (en) * 1984-02-17 1988-01-12 Aleksander Przybylski Automatic water purifier
DE4338491A1 (de) * 1993-11-11 1995-05-18 Uts Wassertechnik Gmbh Verfahren zur Behandlung mit organischen Stoffen belasteter Abwässer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073712A (en) * 1976-11-19 1978-02-14 Electrostatic Equipment Company Electrostatic water treatment
US4384943A (en) * 1980-09-11 1983-05-24 The University Of Virginia Alumni Patents Foundation Fluid treatment
US4719018A (en) * 1984-02-17 1988-01-12 Aleksander Przybylski Automatic water purifier
DE4338491A1 (de) * 1993-11-11 1995-05-18 Uts Wassertechnik Gmbh Verfahren zur Behandlung mit organischen Stoffen belasteter Abwässer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005105679A1 (fr) * 2004-05-04 2005-11-10 Aqon Umweltengineering Gmbh Dispositif de purification d'eaux usees et procede correspondant

Also Published As

Publication number Publication date
KR100321629B1 (ko) 2002-11-23
KR19990030410A (ko) 1999-04-26

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