WO1987001690A1 - Procede et dispositif d'enrichissement d'eaux en oxygene - Google Patents

Procede et dispositif d'enrichissement d'eaux en oxygene Download PDF

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Publication number
WO1987001690A1
WO1987001690A1 PCT/AT1986/000056 AT8600056W WO8701690A1 WO 1987001690 A1 WO1987001690 A1 WO 1987001690A1 AT 8600056 W AT8600056 W AT 8600056W WO 8701690 A1 WO8701690 A1 WO 8701690A1
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Prior art keywords
water
electrode
oxygen
potential
area
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Application number
PCT/AT1986/000056
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German (de)
English (en)
Inventor
Hans Oppitz
Original Assignee
Eltac Nogler & Daum Kg
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Filing date
Publication date
Application filed by Eltac Nogler & Daum Kg filed Critical Eltac Nogler & Daum Kg
Publication of WO1987001690A1 publication Critical patent/WO1987001690A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
    • A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
    • 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
    • C02F1/46176—Galvanic cells
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/20—Activated sludge processes using diffusers
    • C02F3/202—Aeration by electrolytically produced oxygen bubbles
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F7/00—Aeration of stretches of water
    • 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
    • C02F1/727—Treatment of water, waste water, or sewage by oxidation using pure oxygen or oxygen rich gas
    • 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
    • C02F2001/46133—Electrodes characterised by the material
    • 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
    • C02F2001/46152—Electrodes characterised by the shape or form
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Definitions

  • the invention relates to a method for enriching water in standing or flowing water with oxygen, in which the oxygen is supplied to the water in the bottom area, and a device for carrying out the method.
  • Eutrophication of a body of water means the natural or artificial, e.g. nutrient enrichment caused by human influences such as fertilization, concentrated fattening cattle, detergents.
  • a key factor for the trophy of a body of water (lake) is the nutrient phosphorus.
  • inorganic phosphorus compounds occur only in small amounts, often only in trace amounts, in a body of water.
  • Phosphorus as an essential plant nutrient for primary producers is therefore usually a minimum factor, i.e. the amount of phosphorus in a body of water determines the intensity of primary production. This means that the increase in phosphates leads to water reutrophication.
  • Plants floating in the water especially phytoplankton, usually also referred to as algae, provide the necessary energy for heterotrophic living beings as primary producers.
  • the heterotrophic organisms are those that feed on existing organic matter.
  • Another process is crucial for an ecosystem, namely the degradation of organic matter. This is called breathing or better dissimilation and is used to generate energy for metabolic processes, whereby it should not be overlooked that not only animals but also plants breathe.
  • the dissimilation process can be interpreted as a reversal of the assimilation and can be represented schematically as follows:
  • Olzewski pipe is used, which begins at the deepest point of the lake and leads to the drain. In this way, deep water is no longer drained from the lake, but deep water.
  • Another method is to force the lake into circulation so that the water is circulated.
  • the procedure here is such that compressed air is blown in through a pipe leading to the lake bottom in order to supply oxygen to these layers.
  • the rising air causes heavy deep water to be torn up and then to sink again.
  • the forced circulation also distributes the nutrient quantity of the hypolimnion evenly over the entire water column, which is a heavy fertilization.
  • the present invention has for its object to provide a method with which it is possible to change the oxygen content of the water in flowing or standing water.
  • This object of the invention is achieved in that a current flow through the water serving as the electrolyte between an anodic and a cathodic area arranged in the area of the bottom of the body of water extends over a large area extending electrode is built.
  • the fact that the water or the sediment is used as the electrolyte produces oxygen in the course of the electrolysis that occurs in the process.
  • oxygen supply of the sediment at the bottom of the water and in the bank area better mixing of the water layers with oxygen may also be achieved. This is also the case if all of the oxygen produced by the electrolysis is required in the area of the sediments - in particular in the initial stage of the remediation - in order to make the soil areas aerobic.
  • the essential finding of the invention is, however, that the constant electrolysis of the water column maintains constant, constant circulation without the disadvantages that occur, for example, in the known methods of forced circulation. Rather, an oxidation of the sediment layers and a thorough mixing of the water layers is made possible.
  • the biological advantage of the method is that the "living conditions" are improved. Due to the oxygen enrichment in the sediment, the strictly aerobic microorganisms find the best conditions that die anaerobically. The activity of the aerobic bacteria creates particularly usable nitrogen compounds for algae. These ensure further oxygenation. Now consumers of various orders are also becoming active. The conspicuous organic dead substance is in turn degraded aerobically. This makes it possible to improve the water in the direction of decreasing nutrient content.
  • the possibility of regulating the amount of oxygen and hydrogen liberated in the electrolysis by the current flow in the region of the electrolyte also makes it possible to influence various eutrophication states in the waters to be rehabilitated.
  • Another advantage of the arrangement of the electrodes in the bottom area of the water is that the different minerals present in the bottom area lead to the build-up of local elements between the minerals and an electrode deposited in the bottom area. Due to the various soil materials, the electrolyte has different pH values. These different PH values occur local elements which lead to an electrolysis of the water or the electrolysis, if d 'hese formed by an active or passive electrode system support.
  • the electrode which extends over a large area and the resulting large number of local elements or the large-area electrolysis, produces the oxygen in molecular droplets in the finest droplets.
  • the molecularly dissolved oxygen connects directly to the surrounding water. If a water layer is saturated with molecularly dissolved oxygen, the oxygen is passed on to the next layer, from which it is rapidly absorbed.
  • the level of the current supplied to the electrodes is regulated so that, depending on an amount of oxygen given off during the electrolysis, the water has an oxygen content which is between approximately 5 mg and the oxygen saturation of the water, which means that the water Use of the method described has so much oxygen that it enables sufficient living conditions for carp, but it is prevented that the oxygen begins to bubble out due to excessive electrolysis.
  • a chemically inert electrode the length or area of which is a multiple of the cross-section, to be placed on the bottom of the water, which has a positive potential compared to the normal hydrogen electrode, which, in conjunction with the in the sediments
  • Root area of bulrushes which are located in a clarification pond, is arranged and that this reticulated electrode has a potential that is positive compared to the normal hydrogen electrode and is optionally connected to a magnesium electrode arranged in the bottom area, which acts as an anode.
  • This simple process step makes it possible to increase the efficiency in the so-called rinsing plant.
  • the rushes arranged in the sewage ponds release oxygen in the root area, which leads to an improvement in the oxygen saturation of the dirty water.
  • the amount of oxygen released is multiplied by the network. Above all, it is achieved that the oxygen release is continued at night, which can reduce the oxygen consumption in the dirty water.
  • a defined electric field for electrolysis can be achieved between the anode and the reticular electrode forming the cathode by connecting the reticular electrode to a magnesium electrode acting as an anode.
  • electrodes from lines or networks are placed on the bottom of the water at certain intervals from one another, one electrode of which has a potential which is positive compared to the normal hydrogen electrode and which forms the cathode and directly Adjacent electrode has a potential which is negative compared to the normal hydrogen electrode and forms an anode, so that according to the materials and surfaces used, a precisely defined current flow between the electrodes and thus electrolysis can be achieved to the desired extent.
  • the invention also includes a device for enriching a body of water with oxygen in the region of the soil for carrying out the method.
  • This device is characterized in that an electrode is placed in the bottom region of the body of water, the length or area of which is a multiple of the cross-section and the potential of which is positive against the normal hydrogen electrode.
  • the use of such an electrode ensures that in the formation of local elements, for example in the case of strong hydrogen sulfide or phosphate pollution and when used in aggressive electrolytes, an ineffectiveness of the electrode and thus an interruption of the electrolysis can be counteracted.
  • One advantage of the large-area electrode lies above all in the fact that a large number of different local elements can be formed over the surface by differences in pH in the electrolyte or by the different values in the voltage series of the materials.
  • the oxygen accumulates in the finest droplets in a molecular solution and can therefore be taken up directly by the oxygen-poor water. Due to the fact that the water body does not circulate, the colder water remains in the area of the floor and can absorb more oxygen than water due to the low temperature n
  • the living conditions for living beings in the immediate area of the device are thus improved.
  • the electrode has a plurality of thread-like support bodies which are in one with carbon, e.g. Graphite-displaced, conductive plastic are embedded, since this ensures sufficient strength of the electrode against mechanical damage caused by attachments even in flowing water.
  • electrodes of this type are suitable in conjunction with so-called externally operated systems, in which the electrodes are connected to the outputs of a low-voltage source in order to produce a controllable current flow between them.
  • the lines can be laid in the form of a network or to form threads of a network and preferably to be designed as a cathode; since a large surface area of the electrode is reached as a result of the network-shaped laying and a correspondingly effective electrolysis is triggered.
  • the electrode is formed by a conductor made of magnesium, which is provided with a coating in the longitudinally spaced areas, the potential of which is positive with respect to the normal hydrogen electrode, since it is in a simple manner between
  • the magnesium serving as the anode and the coatings serving as the cathode are constructed with a large number of local elements which lead to electrolysis of the electrolyte located therebetween, namely the water.
  • the number of elements formed can also be used to preselect the amount of electricity available in order to be able to produce a corresponding amount of oxygen.
  • the magnesium ions remaining in the water during operation of the local element and the resulting dissolution and degradation of the anode are advantageous for the nutrient balance in the water, since aquatic plants also require magnesium for chlorophyll production.
  • the electrode having a positive potential with respect to the normal hydrogen electrode as the cathode is contacted with an electrode having a negative potential with respect to the normal hydrogen electrode as the anode, and that preferably that through the Water-formed electrolyte-accessible surface of the electrode having a negative potential is designed to have a presettable current flow through the electrolyte formed by the water.
  • the amount of electricity available for processing the electrolysis can be regulated and the aeration of the sediment layers in the bottom area can be controlled.
  • the hydroxides formed during electrolysis lead to a change in the pH value in the basic direction.
  • the sufficient oxygen supply in the sediment, the breakdown of nutrients and the absorption of the same by primary producers enables the creation of aerobic conditions in the sediment. The prerequisite for this is the reduction of the nutrient entry into the water.
  • this arrangement also enables plankton to be supplied in troughs, since an aerobic environment can be maintained and, with the appropriate supply of food and increasing temperature and sufficient oxygen supply, sufficient plankton can be produced.
  • the two electrodes may be connected to an output of a low-voltage source and to have a voltage slightly above the decomposition voltage of the water, a control device preferably being assigned to the low-voltage source, the oxygen quantity measuring elements and / or temperature sensors are assigned and when the oxygen saturation is reached, the control device is acted on in the sense of a reduction in the current output of the low-voltage source, as a result of which, when measuring the various reference variables in the system, simple control and adaptation of the required amount of current for the Electrolysis to maintain a corresponding amount of oxygen in the sediment or water is achieved.
  • Fig. 1 shows a part of a body of water with a device according to the invention arranged in the bottom region of the body of water in a simplified diagrammatic representation with a schematically indicated process of the invention
  • FIG. 2 shows an embodiment variant of a device according to the invention using a cathode and an anode as local elements
  • Figure 3 shows the arrangement of an inventive device in a lake in a simplified schematic representation.
  • FIG. 4 shows an embodiment variant of a device according to the invention with an active method using an anode and a cathode and an external voltage source contacted with these two;
  • FIG. 5 shows a local element formed from an electrode having an anodic and a cathodic region with a coating influencing the active surface of the anode
  • Fig. 6 is a diagram of the nitrogen cycle in the water.
  • Fig. the water 1 of a part of a body of water 2 is shown schematically.
  • the eutrophication process has been accelerated due to environmental influences such as detergents, nitrate feed from over-fertilization or concentrated fattening cattle farming.
  • the pond therefore has one stratification corresponding to a eutrophic state.
  • This is characterized in that the water layer extending from the water surface 3 in the direction of a bottom 4, namely the epilimnion 5, is less deep and warmer than an oligotrophic layer 5.
  • Metalimnion 6 which also has only a small depth and in which a blatant drop in temperature in the direction of the bottom 4 of the water 2 can be determined.
  • the adjoining one which extends to the bottom 4 of the water
  • IQ " layer”, namely a hypolimnion 7, on the other hand, has a very large depth.
  • the depths of the epilimnion 5 and metalimnion 6 of an oligotrophic body of water are drawn purely schematically by means of dashed lines.
  • various minerals 12 or 13 are present. Furthermore, there are aquatic plants 14 at the bottom 4 of the water, e.g. Algae and the like available. These aquatic plants and algae will mainly be blue-green algae if the water is eutrophic
  • an electrode 15 is arranged in the area of the bottom 4.
  • This electrode 15 consists, for example, of a network 16 provided with an electrically conductive surface coating,
  • Electrodes are embedded, if possible, in a plastic that is inverted against soil minerals. Due to the carbon contained in the electrode surface, the electrode 15 is electropositive, but acts due to the direct contact with it
  • the 35 in Fig. shown eutrophic waters 2 for a rapid increase in the nitrifi anten, which are aerobic and thus cause that the anaerobic assimilation or dissimilation process swings into an aerobic assimilation or dissimilation process.
  • the effect of the electric field 19 and the electrode 15 and its polarity with the sediments contained in the sediment layer 10 build up a material gradient which promotes the development of the microlife world. This means that the nutrients, which are largely ionic in aqueous solution, migrate to the electrically charged poles. Furthermore, the development of microorganisms and protoplasts by the electric field 19 should also be favored. In addition, there are the bacterial substance conversions present in the water, which are promoted by the amount of oxygen released at the network 16 or the electrode 15.
  • the structure of the electric field 19 and the oxygen supply obtained by the electrolysis make it possible to inhibit the progress of eutrophication in a body of water. If it is also possible to reduce the supply of nutrients into the water, in particular by adding phosphates and nitrates, such as by over-fertilization and concentrated fattening cattle, the eutrophication can be slowed down or the water can be returned to an oligotrophic state.
  • the method and the device according to the invention can more easily overcome critical disturbance phases in a biological ecosystem and it is possible to stabilize the ecosystem. By improving the breakdown and conversion of nutrients, aerobic conversion is favored in the smallest space.
  • FIG. 2 shows an embodiment variant of a device 22 for enriching a water 1 of a body of water 23.
  • the device 22 comprises, in addition to the electrode 15 formed by a network 16, a further electrode 24 which is formed by a rod 25, for example made of magnesium or a magnesium alloy.
  • the rod 25 is driven so far into the sediment layer 10 or the bottom 4 of Ge 23 dsers that its water * is 1 end facing approximately in the region of the electrode 15 and the network sixteenth A contact cap 26 is provided on the side of the rod 25 facing the electrode 15, the cross-sectional area of which is larger than the mesh size of the electrode 15 formed by the network 16.
  • the rod 25 is now driven into the sediment layer 10 or the bottom 4 of the water 23 , the rod 25 is contacted directly with the electrode 15 or short-circuited.
  • FIG. 3 in order to clarify the method according to the invention and the design of the device, it is shown that, in contrast to known electrolysis devices, water 30 formed by a lake 29 is made by inserting large-area electrodes 15 formed by networks 16. The mode of operation of such devices can then be both according to the embodiment in FIG. as well as according to the embodiment in Fig.2.
  • FIG. 4 shows another embodiment variant of a device 31, which is a so-called active system.
  • an electrode 32 acting as an anode is connected to a voltage source 34 via a line 33.
  • a reticulated moved through a network 35 or conductor 36 formed "electrode 37, which acts as the cathode, is connected via a line 38 to the negative potential of the voltage source 34 in.
  • a voltage source devices 31 is in designing and producing of electrodes 32 and 37, only make sure that materials that are resistant to soil and minerals are used.
  • the voltage difference between the two electrodes and also the current passage through the electric field, which extends between the electrode 32 and the electrode 37 and is schematically indicated by field lines 39, can be regulated.
  • the mode of operation of the device 31 corresponds essentially to that of FIG. and 2 described mode of operation with the difference that the voltage and current strength in the electrical field can be controlled with a control element 40.
  • the control element 40 can be acted upon via a control device 43 in such a way that the voltage and current strength in the electrical field - indicated schematically by field lines 39 - accelerate or reduce the electrolysis, so that during electrolysis resulting oxygen the oxygen demand of the
  • Water 1 or the respective liquid and the oxygen requirement of the nitrifiers or the other bacteria and plants in the water is adapted.
  • the advantage of using electrodes formed by nets is furthermore that the aquatic plants or the algae have the possibility of growing upwards through the nets, so that the soil flora in water is not impeded by the device according to the invention.
  • a further electrode 45 is held in a certain area below a water surface 44, for example above floating bodies 46. If such an electrode 45 is used, it is applied to the negative potential of the voltage source 34 as well as the electrode 37. As a result, due to the voltage conditions in the water, algae 47 deposit on the electrode formed by the network and it comes directly in the area the surface of the water - from which area in clarifiers the water is fed to a stream 10 "or the like after the final clarification - to a very high oxygen concentration again, which strengthens the final purification of the water.
  • FIG. 5 shows a rod 25, which can be used, for example, for an electrode 15 24 - as described in FIG. 2.
  • This rod 25 is made of pure magnesium or a magnesium alloy or another base metal, which has the greatest possible voltage separation from the contact cap 26, which consists, for example, of carbon or a plastic enriched with carbon.
  • Base metals should preferably be used here which have a voltage distance from the carbon or possibly platinum-doped electrode which essentially corresponds to the decomposition voltage of the water in order to ensure sufficient electrolysis of the electrolyte formed by the water in the course of the er ⁇ enable method according to the invention when used with the device according to the invention.
  • Lines indicated - provided with a carbon coating 48 is, so that the effective surface is reduced or - as shown in full lines - over the surface of the rod 25 diaphragm or a sponge 49 - which can of course also be formed by any more or less open-celled elastic or rigid plastic - vorge ⁇ see.
  • the maximum area of access from the electrolyte to the rod 25 regulates the voltage strength or the amount of current between the two electrodes.
  • Fig. 6 is a scheme of the nitrogen cycle for better understanding of the invention, which is decisive for the condition of a body of water, whether oligotrophic or eutrophic.
  • ammonium is converted into a nitrifier I, namely nitrite, by reducing oxygen in the water.
  • a nitrifier II Under aerobic conditions - and correspondingly sufficient oxygen in the water - a further reduction of the oxygen in the water from the nitrifying agent I forms a nitrifying agent II, ie the nitrite is converted into a nitrate by reducing oxygen from the water.
  • the breakdown of the resulting organic substances is also very important for the ecosystem. This is also known as respiration or better known as dissimilation and is used to generate energy for the metabolic processes. Bacteria play an important role in this degradation process, and they work up the dead organic substance again. This closes the natural cycle, i.e. the ecosystem, and preserves the oligotrophic state of the water.
  • the invention is not tied to the exemplary embodiments shown, but any other inert electrodes suitable for this application can be used instead of the electrodes shown in order to achieve a corresponding field build-up and thus electrolysis of the water and oxygen recovery.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Environmental Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biotechnology (AREA)
  • Botany (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

Un procédé et un disopositif sont utilisés pour enrichir en oxygèn l'eau (1) de masses ou de courants d'eau, l'oxygène étant introduit par le fond de la masse d'eau (1). A cet effet, un courant électrique est formé à travers l'eau, qui sert d'électrolyte, entre les zones anodique et cathodique d'une électrode (15) qui s'étend sur une grande surface du fond de la masse d'eau.
PCT/AT1986/000056 1985-09-20 1986-09-16 Procede et dispositif d'enrichissement d'eaux en oxygene WO1987001690A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT276085 1985-09-20
ATA2760/85 1985-09-20

Publications (1)

Publication Number Publication Date
WO1987001690A1 true WO1987001690A1 (fr) 1987-03-26

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PCT/AT1986/000056 WO1987001690A1 (fr) 1985-09-20 1986-09-16 Procede et dispositif d'enrichissement d'eaux en oxygene

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EP (1) EP0238511A1 (fr)
AU (1) AU6372486A (fr)
DE (1) DE3690472D2 (fr)
WO (1) WO1987001690A1 (fr)

Cited By (11)

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EP0812631A1 (fr) * 1996-06-13 1997-12-17 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Procédé pour la décontamination in situ de sols pollués au moyen de micro-organismes
DE19724137A1 (de) * 1997-06-07 1998-12-10 Univ Dresden Tech Verfahren zur Fixierung oder zum Lösen von Wasserinhaltsstoffen in oder aus Feststoffmatrices
US6171469B1 (en) * 1996-10-31 2001-01-09 H2O Technologies, Ltd. Method and apparatus for increasing the oxygen content of water
US6296756B1 (en) 1999-09-09 2001-10-02 H20 Technologies, Ltd. Hand portable water purification system
US6358395B1 (en) 2000-08-11 2002-03-19 H20 Technologies Ltd. Under the counter water treatment system
AT412340B (de) * 2003-05-22 2005-01-25 Minnova Mineralien Handelsges Anlage zur aufbereitung des wassers von stehenden gewässern
EP2250130A1 (fr) * 2008-02-15 2010-11-17 Iogenyx Pty Ltd Procédé, système et dispositif pour le traitement de l'eau
GB2472679A (en) * 2009-08-13 2011-02-16 Harold Birkett Biological pump using bubbles produced by electrolysis
WO2011096884A1 (fr) * 2010-02-05 2011-08-11 Encubator Ab Procédé et appareil d'élimination in situ de sulfures de l'eau de mer ou de lac
GB2488198A (en) * 2011-02-15 2012-08-22 Harold Birkett Oceanic pump for removal of carbon dioxide from the atmosphere
CN108178347A (zh) * 2018-01-09 2018-06-19 宁波大红鹰学院 一种用于水体生态修复的复合增氧装置

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US3392102A (en) * 1967-03-16 1968-07-09 Koch Rudolf Galvanic action water purifier
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EP0812631A1 (fr) * 1996-06-13 1997-12-17 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Procédé pour la décontamination in situ de sols pollués au moyen de micro-organismes
NL1003327C2 (nl) * 1996-06-13 1997-12-17 Tno Werkwijze voor het in-situ, met behulp van micro-organismen, reinigen van een verontreinigd bodemgedeelte.
US5919351A (en) * 1996-06-13 1999-07-06 Nederlandse Organisatie Voor Toegepast Natuurwetenschappelijk Onderzoek Tno Method of in-situ cleaning by means of microorganisms of a polluted soil portion
US6171469B1 (en) * 1996-10-31 2001-01-09 H2O Technologies, Ltd. Method and apparatus for increasing the oxygen content of water
US6478949B1 (en) 1996-10-31 2002-11-12 H2O Technologies, Ltd. Method and apparatus for increasing the oxygen content of water
DE19724137A1 (de) * 1997-06-07 1998-12-10 Univ Dresden Tech Verfahren zur Fixierung oder zum Lösen von Wasserinhaltsstoffen in oder aus Feststoffmatrices
US6296756B1 (en) 1999-09-09 2001-10-02 H20 Technologies, Ltd. Hand portable water purification system
US6358395B1 (en) 2000-08-11 2002-03-19 H20 Technologies Ltd. Under the counter water treatment system
AT412340B (de) * 2003-05-22 2005-01-25 Minnova Mineralien Handelsges Anlage zur aufbereitung des wassers von stehenden gewässern
EP2250130A1 (fr) * 2008-02-15 2010-11-17 Iogenyx Pty Ltd Procédé, système et dispositif pour le traitement de l'eau
EP2250130A4 (fr) * 2008-02-15 2012-11-07 Iogenyx Pty Ltd Procédé, système et dispositif pour le traitement de l'eau
US8641886B2 (en) 2008-02-15 2014-02-04 Andrew Peter Musson Method, system and device for treatment of water
GB2472679A (en) * 2009-08-13 2011-02-16 Harold Birkett Biological pump using bubbles produced by electrolysis
GB2472679B (en) * 2009-08-13 2012-03-07 Harold Birkett Biological pump and electric generators
WO2011096884A1 (fr) * 2010-02-05 2011-08-11 Encubator Ab Procédé et appareil d'élimination in situ de sulfures de l'eau de mer ou de lac
GB2488198A (en) * 2011-02-15 2012-08-22 Harold Birkett Oceanic pump for removal of carbon dioxide from the atmosphere
CN108178347A (zh) * 2018-01-09 2018-06-19 宁波大红鹰学院 一种用于水体生态修复的复合增氧装置

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DE3690472D2 (en) 1987-10-08
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