WO2005105679A1 - Dispositif de purification d'eaux usees et procede correspondant - Google Patents

Dispositif de purification d'eaux usees et procede correspondant Download PDF

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Publication number
WO2005105679A1
WO2005105679A1 PCT/EP2005/000030 EP2005000030W WO2005105679A1 WO 2005105679 A1 WO2005105679 A1 WO 2005105679A1 EP 2005000030 W EP2005000030 W EP 2005000030W WO 2005105679 A1 WO2005105679 A1 WO 2005105679A1
Authority
WO
WIPO (PCT)
Prior art keywords
wastewater
container
wastewater treatment
waste water
voltage
Prior art date
Application number
PCT/EP2005/000030
Other languages
German (de)
English (en)
Inventor
Marian Wilk
Original Assignee
Aqon Umweltengineering 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
Priority claimed from DE202004016190U external-priority patent/DE202004016190U1/de
Application filed by Aqon Umweltengineering Gmbh filed Critical Aqon Umweltengineering Gmbh
Priority to DE112005001020.1T priority Critical patent/DE112005001020B4/de
Publication of WO2005105679A1 publication Critical patent/WO2005105679A1/fr

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
    • C02F1/48—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
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/301—Detergents, surfactants
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/308—Dyes; Colorants; Fluorescent agents
    • 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
    • C02F2201/48—Devices for applying magnetic or electric fields
    • C02F2201/483—Devices for applying magnetic or electric fields using coils
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • 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
    • 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
    • C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage

Definitions

  • the present invention relates to a wastewater treatment system and process for grease and oil-containing wastewater, cooling lubricants, emulsions, electroplating water, water for painting booths based on water wall technology and closed water circuits and wastewater from all types of washing systems / parts cleaning systems for cleaning dishes, containers, transport boxes , Production utensils, glasses and parts washing in the manufacturing sector.
  • This waste water has a high organic and inorganic contamination with fats, oils, surfactants and inorganic and organic substances.
  • a device for wastewater treatment which comprises a container for receiving wastewater and two electrodes, which are assigned to the container and are insulated from the wastewater, for generating a high-voltage field.
  • Emulsions contained in waste water such as dishwasher waste water, dishwasher process water, fat separator feed water, fat separator drain water, coalescence feed water, coalescence drain water and cooling lubricants, can be kept stable due to the high tension in the cleaning agents contained in the cleaning agents (generally no longer and ten-sided) are separated because the charge structure of the surfactants and emulsion formers is changed.
  • the fats / oils and other organic or inorganic dirt loads are separated from the emulsion formers and are present as separate substances in the waste water. These substances can then be treated in conventional fat separators, such as gravity separators, or coalescence separators in accordance with DIN 4040. By splitting the emulsions in particular sludge in the sludge trap and fats or oils in the fat trap of a fat separator can be retained and separated.
  • the application of high voltage to wastewater according to the invention has the consequence that flocculation, precipitation, detackification, emulsion separation and / or coagulation of the ingredients of wastewater can be carried out without the use of chemical substances or at least using significantly smaller amounts of chemical substances. Further positive effects are the disinfection, bacterial reduction of the waste water or cooling lubricant emulsions and killing or inactivation of viruses, so that the use of biocides can be significantly reduced and the service life of cooling lubricant emulsions can be extended. Drinking water and process water can also be affected.
  • Pretreatment of waste water in the device according to the invention can drastically reduce the load on municipal waste water networks with emulsified fats / oils and municipal primary settling tanks can be protected against overload.
  • the device according to the invention can be used in conjunction with or in all types of flushing systems. With the device according to the invention, all fat separators or coalescence separators supplied according to DIN 4040 can also be treated.
  • the device according to the invention can be integrated into a process water circuit, whereby process water in flushing systems can be cleaned by separating the no longer emulsified fats / oils and other organic or inorganic substances so that the process water can remain in the cycle operation of a cleaning or water circuit and does not have to be renewed continuously.
  • process water in flushing systems can be cleaned by separating the no longer emulsified fats / oils and other organic or inorganic substances so that the process water can remain in the cycle operation of a cleaning or water circuit and does not have to be renewed continuously.
  • the invention allows a variety of possible arrangements of electrodes and containers for receiving and passing the waste water.
  • the invention is not limited to specific forms of containers or arrangements of electrodes. It is conceivable to arrange only one of the electrodes or all electrodes in the container.
  • the electrodes in the container that are in direct contact with the waste water must be insulated from the waste water. This can be done, for example, by coating with a non-conductive material, e.g. Plastic or with the use of glass. However, the electrodes can also be arranged outside the container, so that no direct insulation of the electrodes is required.
  • the container is preferably made of alkali and / or acid-resistant plastic, of glass or porcelain or of suitable composite materials, so that it cannot be chemically attacked by the waste water.
  • a metallic housing can also be used for the container, which is electrically conductive and itself forms one of the electrodes.
  • the inner electrode is attached in an insulated form and is not in direct contact with the liquid.
  • the device comprises a high voltage generator for generating a static or clocked DC voltage.
  • the direct voltage generated by the high voltage generator can be more than 1 kV, preferably more than 20 kV and particularly preferably more than 100 kV.
  • the direct voltage generated by the high voltage generator is clocked at a frequency between 50 Hz and 200 kHz.
  • the use of a DC voltage clocked at a high frequency leads to an increased effectiveness of the waste water purification device according to the invention.
  • the container of the device according to the invention is preferably in the form of a tube, one or more internal electrodes being provided and preferably one or more external electrodes being able to be attached coaxially to the tube axis, or the inner wall of the housing being the outer electrode or the housing itself being the outer electrode (counter electrodes / counter electrode ) serves.
  • the container can also have another shape of a hollow vessel.
  • the inner electrode can be made in one piece or continuously or in pieces. It can have a wound shape or the shape of a turn and can be arranged coaxially to the tube axis.
  • the counterelectrodes arranged in the vicinity or on the outer wall of the tube are preferably arranged concentrically to the tube and are ring-shaped. In addition, they can also be provided with a wave shape or, in particular, be meandering.
  • the counter electrodes can also have the form of windings or windings and can be arranged inside or outside the tube.
  • the device for wastewater treatment can be arranged in a wastewater treatment arrangement, which furthermore has a container suitable for holding wastewater and a circulating pump.
  • a second container connected to the first container can be provided for chemical aftertreatment, depending on the type and amount of the dirt load introduced or the cleaning agent may be necessary.
  • a device for measuring the pH value, a stirring device and a metering device for supplying chemical treatment substances can be provided in the container for chemical aftertreatment.
  • the first and the second container are preferably connected to one another by a cascade overflow.
  • the use of one or more pumps is also conceivable.
  • the water, waste water or cooling lubricant is preferably fed and removed continuously for cleaning.
  • a stream of negative ions and / or electrons is generated in the wastewater.
  • germs, bacteria and viruses in the wastewater can be killed and inactivated.
  • Another effect brought about by the device according to the invention is that flocculation, precipitation, detackification, coagulation and / or emulsion splitting of constituents of the waste water take place.
  • hardness-forming substances in wastewater can lose their ability to attach due to the high voltage. At least some of these are converted into carbonic acid and / or calcium.
  • Chemical treatment of the wastewater treated with the high-voltage field can also be carried out, for example using commercially available precipitants and flocculants.
  • a method for wastewater treatment with a high-voltage field is also provided. Electrodes assigned to the container and insulated from the waste water are provided in a container for holding waste water, the method comprising the step of applying a high-voltage field extending through the waste water.
  • the high-voltage field is preferably generated with a DC voltage which has a strength of more than 1 kV, preferably of more than 50 kV and particularly preferably more than 100 kV.
  • the high voltage generated is clocked with a frequency of more than 10 2 pulses per second, preferably with more than 5x10 2 pulses per second and particularly preferably with more than 10 pulses per second.
  • the wastewater is preferably fed in and discharged continuously for purification. However, cleaning can also be carried out in batches. According to a further embodiment a flow of negative ions is generated in the wastewater.
  • germs, bacteria and viruses present in the wastewater can be at least partially killed.
  • Another effect brought about by the process according to the invention is that flocculation, precipitation, detackification, paint coagulation and / or emulsion splitting of constituents of the waste water take place.
  • hardness-forming substances in the wastewater can lose their ability to accumulate due to the high voltage and are preferably at least partially converted into calcium and carbonic acid.
  • FIG. 1 shows a schematic illustration of the device for wastewater treatment according to the invention in accordance with one embodiment
  • FIG. 2 shows an embodiment of a wastewater treatment arrangement comprising the device for wastewater treatment from FIG. 1.
  • the device for wastewater treatment shown in FIG. 1 comprises a container for holding wastewater in the form of a tube module 6, which is preferably made of an alkali and acid-resistant plastic.
  • a tube module 6 which is preferably made of an alkali and acid-resistant plastic.
  • the shape of a tube with a length of approximately 1600 mm and a diameter of 160 mm is preferred.
  • an insulated inner electrode 2 preferably made of steel, copper, aluminum or other conductive metals, is arranged collinear to the tube axis, to which a regulated DC voltage can be applied with the aid of a high-voltage part 3 operated with preferably 24 V.
  • the level of the applied DC voltage is preferably in the range between 1 kV and 100 kV.
  • counter electrodes 4 which are preferably ring-shaped and are arranged concentrically to the inner electrode 2 be attached.
  • the number and shape of the counter electrodes 4 is variable and is selected in accordance with the special requirements, in particular the desired capacity of the wastewater treatment device. In the embodiment shown in FIG. 1, the number of counter electrodes, in particular meandering, is seven.
  • the counter electrodes are also electrically insulated and made of a conductive material. In principle, all conductive metals or other conductive substances are suitable as materials.
  • the high voltage applied to the electrodes with the high-voltage part 3 is preferably clocked at a frequency in the range between 50 Hz and 200 kHz.
  • the clocking results in an alternating ionization or non-ionization corresponding to the clock, which is associated with a constant flow of electrons.
  • a liquid to be treated can be guided continuously through the high-voltage field through an inlet 1 and an outlet 17 arranged near the opposite end of the tube module 6.
  • the prevailing flow pressure is usually 0.1 bar or above and preferably above 4 bar.
  • the electrostatic interaction of the constituents of the wastewater is changed or canceled depending on the state of charge of the water constituents.
  • the pollutants / compounds present in the water can be ionized in the area of the high-voltage field.
  • Hardness-forming substances in water cycles lose their ability to accumulate because lime is at least partially converted into carbonic acid.
  • the use of chemical products can be dispensed with entirely.
  • the use of biocides can also be drastically reduced.
  • the emulsified fats / oils and other organic and inorganic substances separated from the waste water with the aid of the device according to the invention can subsequently be retained in fat separators (gravity separators) or coalescence separators in accordance with DIN 4040.
  • the container shown in FIG. 1 is only a special embodiment and the invention is not restricted to this.
  • any container suitable for holding waste water is suitable.
  • the container can for example also be equipped without an inlet or outlet and have the shape of a trough so that it can be filled from above.
  • the electrodes an arrangement inside and outside the container is conceivable. If the electrodes are outside the container, they do not have to be insulated separately, since they are not brought into contact with the waste water. Furthermore, it is conceivable to design the container itself as the counter electrode.
  • the inner electrode and / or the counter electrode can be designed as a single continuous electrode, or can be subdivided and have a plurality of sections.
  • the inner and / or counter electrode can also be designed as a winding which is coaxial with the container axis.
  • the counter electrode can also be through the container itself or through the inner wall thereof, e.g. be formed by a coating.
  • the embodiment of a device for wastewater treatment shown in FIG. 1 can be integrated into a wastewater treatment arrangement shown in FIG. 2.
  • the wastewater treatment arrangement comprises a pretreatment store 8 which is connected to a wastewater inflow and which can be filled via an inlet 15.
  • the waste water is fed to the waste water purification device 6, which is operated with the aid of a power supply unit 7.
  • the wastewater purification device 6 shown in detail in FIG. 1 as was described in connection with FIG. 1, the necessary high voltage is produced with the aid of two or more electrodes.
  • the wastewater treatment arrangement shown in FIG. 2 is particularly suitable for a continuous wastewater flow led through the arrangement.
  • the waste water purification system further comprises an aftertreatment store 14 as a further treatment stage.
  • the wastewater treated in the pretreatment store 8 passes through a cascade overflow 10.
  • a measurement probe for determining the pH 11, a metering device for chemical products 12 and a stirring mixer 13 are provided on the post-treatment store 14.
  • organic precipitation and flocculants can be used for the aftertreatment.
  • both the pH value of the waste water, the COD value, ie the chemical oxygen demand can be measured and the sludge consistency of the sludge consisting of organic substances, fats and oils can be post-treated, for example in accordance with the respective municipal requirements.
  • the treated water is discharged from the aftertreatment store 14 via an outlet 16 and can be fed to further wastewater treatment stages, such as a gravity separator.

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  • 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)

Abstract

La présente invention concerne un dispositif pour purifier des eaux usées, comprenant un réservoir qui sert à recevoir des eaux usées, et deux électrodes associées au réservoir et isolées des eaux usées, qui servent à produire un champ électrique.
PCT/EP2005/000030 2004-05-04 2005-01-04 Dispositif de purification d'eaux usees et procede correspondant WO2005105679A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112005001020.1T DE112005001020B4 (de) 2004-05-04 2005-01-04 Vorrichtung und Verfahren zur Behandlung von Wasser

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102004021939.7 2004-05-04
DE102004021939 2004-05-04
DE202004016190U DE202004016190U1 (de) 2004-10-19 2004-10-19 Abwasserreinigungsvorrichtung
DE202004016190.7 2004-10-19

Publications (1)

Publication Number Publication Date
WO2005105679A1 true WO2005105679A1 (fr) 2005-11-10

Family

ID=34959718

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/000030 WO2005105679A1 (fr) 2004-05-04 2005-01-04 Dispositif de purification d'eaux usees et procede correspondant

Country Status (2)

Country Link
DE (1) DE112005001020B4 (fr)
WO (1) WO2005105679A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009000241A1 (de) 2009-01-15 2010-07-22 Jürgen Schillinger Einrichtung zur Aufbereitung von Prozessflüssigkeiten mit einem Zyklonabschneider
DE102011008183A1 (de) 2011-01-10 2012-07-12 New Environmental Technology Gmbh Kontinuierliche Aufbereitung eines Kühlschmierstoffs
US9896918B2 (en) 2012-07-27 2018-02-20 Mbl Water Partners, Llc Use of ionized water in hydraulic fracturing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341617A (en) * 1981-01-30 1982-07-27 King Arthur S Liquid treater having electrical charge injection means
WO2000039030A1 (fr) * 1998-12-26 2000-07-06 Kim, Young, Tae Systeme de traitement des eaux usees
DE10040158A1 (de) * 2000-08-17 2002-03-07 Kaiser Versuchs Und Entwicklun Vorrichtung zur energetischen Beeinflussung eines Fluids mit Strömungskanaltaktung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2640955B1 (fr) * 1988-12-26 1991-11-29 Taillet Joseph
AU2000234638B2 (en) * 2000-03-30 2004-06-03 Moon-Ki Cho Water purification system and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341617A (en) * 1981-01-30 1982-07-27 King Arthur S Liquid treater having electrical charge injection means
WO2000039030A1 (fr) * 1998-12-26 2000-07-06 Kim, Young, Tae Systeme de traitement des eaux usees
DE10040158A1 (de) * 2000-08-17 2002-03-07 Kaiser Versuchs Und Entwicklun Vorrichtung zur energetischen Beeinflussung eines Fluids mit Strömungskanaltaktung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009000241A1 (de) 2009-01-15 2010-07-22 Jürgen Schillinger Einrichtung zur Aufbereitung von Prozessflüssigkeiten mit einem Zyklonabschneider
DE102011008183A1 (de) 2011-01-10 2012-07-12 New Environmental Technology Gmbh Kontinuierliche Aufbereitung eines Kühlschmierstoffs
US9896918B2 (en) 2012-07-27 2018-02-20 Mbl Water Partners, Llc Use of ionized water in hydraulic fracturing

Also Published As

Publication number Publication date
DE112005001020B4 (de) 2015-06-03
DE112005001020A5 (de) 2007-05-24

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