CN101516785A - Method for the removal of pollutants from liquids and device for carrying out said method - Google Patents

Method for the removal of pollutants from liquids and device for carrying out said method Download PDF

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Publication number
CN101516785A
CN101516785A CNA2007800352935A CN200780035293A CN101516785A CN 101516785 A CN101516785 A CN 101516785A CN A2007800352935 A CNA2007800352935 A CN A2007800352935A CN 200780035293 A CN200780035293 A CN 200780035293A CN 101516785 A CN101516785 A CN 101516785A
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China
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electrode
described method
equipment
aforementioned
liquid
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CNA2007800352935A
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Chinese (zh)
Inventor
A·哈恩
K·斯特拉茨
M·韦德哈斯
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Siemens AG
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Siemens AG
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    • 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
    • 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
    • C02F2001/46119—Cleaning the electrodes
    • 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
    • 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
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
    • C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
    • 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
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C02F2201/46125—Electrical variables
    • C02F2201/4613—Inversing polarity
    • 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
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4616—Power supply
    • C02F2201/46175—Electrical pulses
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/02—Specific form of oxidant
    • C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical

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  • 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)

Abstract

The invention relates to a method for the removal of pollutants from aqueous media, particularly for the removal of organic pollutants from water, wherein the desired effect is achieved by mainly introducing ozone (O3) into the liquid to be cleaned. The ozone forms (H2O)-radicals in the water, wherein the radicals have an oxidation effect. According to the invention, the OH-radicals are directly produced electrochemically and the electrochemically produced OH-radicals are used for the removal of organic pollutants, for rendering the pollutants ineffective and/or for the reduction of the effectiveness thereof. The associated device comprises an electrode arrangement (10, 20) with positive and negative electrodes (10i, 21), forming an electron array, and an inlet- and outlet (35, 36) for the liquid to be cleaned.

Description

Be used for removing the method for objectionable impurities and the equipment that is used to implement this method from liquid
Technical field
The present invention relates to a kind of method that is used for being particularly useful for the organic objectionable impurities of removal from watery medium from liquid removal objectionable impurities.In addition, the present invention also relates to a kind of equipment that is used to implement described method.
Background technology
Disclosed being used for especially removed the oxidation of the method great majority of organic objectionable impurities based on respective substance from water such as waste water, underground water and/or process water.Such as open,, ozone have the mode in the liquid to be clean to obtain corresponding effects by being imported.Waste water has very high CSB-value (CSB=by remaining organic integral part or soil ulmin in paper-making process CHemischer SAuerstoff bEdarf (chemical oxygen demand)) and therefore must not unprocessedly just import in the local water feeding system, the suggestion use has the purification system of ozonizer in described papermaking scope especially.But this method is pretty troublesome and expend a large amount of expenses, because majority will be supplied with pure oxygen, need 10 to 40kV high voltage supply and be used to produce ozone (O in addition to equipment 3) efficient relatively poor.
From US 200,3/0 196 983 A1, disclose a kind of method, utilize this method will be dissolved in metal removal in the liquid by so-called electrocoagulation.In order to remove the organic impurity of liquid, in this respect with reference to the utilization of microorganism.Under the equipment that is used to implement this method accomplished at this as pole plate device with bipolar electrode.Other the device that is used for treatment liq obtains explanation at WO99/11 577 A1 and DE 196 02 369 A1.
In disclosed method from US 200,3/0 196 983 A1, ozone (O 3) in importing water before or in importing water the time electricity consumption split into the OH-atomic group that has real oxygenizement.
Summary of the invention
Relative therewith, task of the present invention is, a kind of method is described, this method is worked under the situation of ozone and with low cost not having to use separately.In addition, should provide a kind of suitable being used to implement the equipment of described method.
By the present invention, this task is resolved by the order by the method steps of claim 1.Affiliated equipment is the theme of claim 24.The improvement project of described method comprises that especially also the improvement project of suitable applications and affiliated equipment obtains explanation in the corresponding dependent claims.
In pressing method of the present invention, the described OH-atomic group that has real oxygenizement directly produces with electrochemical means, wherein than reaching much higher overall efficiency by the approach that imports ozone.Advantageously, usually need be less than the voltage of 5V, wherein voltage depends on electrode materials.In a word, describedly be used to implement compact and in this liquid circulation that is used for the successive mode of operation that comprises sealing, utilize described mode of operation especially can make the organic objectionable impurities in the liquid become harmless by the equipment structure of method of the present invention.
On the contrary, especially for the waste water of handling in paper-making industry and the textile industry so proposes the objectionable impurities oxidation with US 2002/125 180A1, thereby in processing tank, react with catalytic way generation oxyhydroxide-superoxide and with organic material.Therefore, prior in principle known OH-atomic group is suitable for purifying liquid waste.Therefore but illustrated method and affiliated equipment are very complicated from the beginning to the end and also do not have accomplished technically in structure.Relative therewith, then can implement by enough simply constructed equipment by the electrochemical method that is used for water is purified of the present invention.Such equipment only needs a device that is made of positive and negative alternative electrode basically, described positive and negative electrode is arranged on plane parallel ground each other, wherein exist import and outlet, importing in other words to discharge by described import and outlet has liquid to be clean and continuously along the described liquid of described electrode delivery.
In addition, a kind of method that lignin is decomposed with electrochemical means that is specifically designed to is disclosed from paper-making industry.Use some equipment for this reason, in these equipment, especially use so-called " diamond "-electrode.
Description of drawings
Other details of the present invention and advantage obtain to description of drawings that embodiment did and in conjunction with claim by means of accompanying drawing from following.Wherein:
Fig. 1 and 2 is two work synoptic diagram that are used for water treatment of scheme as an alternative, and
Fig. 3 is the concrete structure according to the groove of electrochemical principle work as the part of the equipment that is used for wastewater treatment.
Embodiment
The workflow when water treatment as can be seen from Fig. 1 and 2.Correspondingly there are work area A, liquid input area B, liquid discharging area C that is configured to electrolyzer and electrochemical treatment zone D at this with electrode.It is important in this that, concerning described regional A realize to the acting in conjunction of D sealing itself, by the liquid circulation that the liquid that can continue to import and the treated liquid that can continue to discharge constitute, wherein in the work area that is between the described electrode, only exist to remain the liquid of respective handling.Can advantageously realize the successive mode of operation thus.
In the container of described work area A, arranged each electrode of described treatment zone D in parallel plane mode, wherein said electrode respective quadrature for be polarized to positive pole and negative pole.In area B, can there be the import B1, the B2 that are used to have pending water of scheme as an alternative, wherein especially be in water in the container A and can lead back by unshowned recycle pump in the accompanying drawings and give the divider B2 that is similar to shower bath that in treatment zone D, is in above the electrode device.Guarantee that thus described electrode is evenly covered, this is considered to important when using the equipment that so constitutes on standard ground.Described discharging area C realizes and exports C2 realizing as ensuing liquid derivation pipeline as being used to capture the drain tank C1 that passes through the water that purifies basically.
Because in watery medium, phenomenon foamy can occur,, be used for the formation of control foam S so in Fig. 2, suitable mechanism is set especially as the replacement scheme of Fig. 1 in when work.In addition, exist in the container in regional A and be used to separate foamy overflow limit C1, wherein in the trap receptacle that is arranged in the electrode containers back of described liquid discharging area C, exist and have recycle pump and corresponding to the circulation of the distributor C 2 of the shower bath type of Fig. 1.In input of the liquid of described area B and C and liquid discharge tube road, can arrange valve V.
Therefore the synoptic diagram of Fig. 1 and 2 shows when water treatment the suitable processing mode that the acting in conjunction by the coordination in each zone realizes, wherein electrochemical principle is identical in both cases.Problem relates to specifically, should make the organic objectionable impurities in the water harmless by oxidation, must provide oxide compound for this reason.In this proposition, use the OH-atomic group for this reason, produce described OH-atomic group with electrochemical means, this with electrolysis mode according to reaction formula
H 2O → H ++ *(OH)+e -(equation 1)
Carry out.
As everyone knows, described OH-atomic group has the effect of oxidation.They can produce with high whole efficiency by electrochemical means according to equation 1, and are just enough less than the voltage of 5V usually for this reason.The structure of the precision architecture of said electrode device, electrode itself and electrode materials are important.
Problem relates in the time of in being used in paper-making industry or paper pulp industry especially, removes lignin integral part or soil ulmin residual in liquid from the waste water that occurs when the papermaking.Lignin (Latin lignum=timber) is meant the polymer of the phenol that is made of different monomer structure groups at this.This is a kind of solid-state colourless material, and this material infiltrates in the cell walls of plant and causes the lignifying (so-called lignifying) of cell thus.At this light brown, no reproducible chemical structure black, that usually form to becoming and organic substance with very different performances and composition are called soil ulmin in soil.
Therefore described lignin and soil ulmin are two kinds of organic substances, and are interpreted as the harmful substances that mainly contains in the waste water that produces in paper-making process on meaning of the present invention.Can influence the effect of such objectionable impurities by oxidation.
Last-mentioned organism has high CSB-value (CSB= CHemischer SAuerstoff bEdarf), reduce (OH by described CSB-value -The demand of)-atomic group.
Fig. 3 shows the suitable concrete structure 1 of one groove for this reason.This structure mainly comprises having the vertical base plate 2 that is used for fixing the pillar of two electrode systems.A plurality of grooves can parallelly connect.
Described groove 1 comprises having the one electrode 11,11 ', 11 that is configured to flat structures " ... first electrode system 10, wherein said electrode 11,11 ', 11 " ... layout parallel to each other.Act on each electrode 11 by same usefulness iThe feeder line 15 of divider with each electrode 11,11 ', 11 " ' ... be connected on the unshowned in the accompanying drawings power supply.In addition, exist have electrode 21,21 ', 21 " ... second electrode system 20, wherein exist with acting on each electrode 21 iThe feeder line 25 of divider.In a word, described first electrode system 10 and described second electrode system 20 are with corresponding electrode 11 iWith 21 iSo interlaced with each other, an electrode 11 of feasible correspondingly described electrode system 10 iTwo electrodes 21 with described electrode system 20 iWith 21 I+1Adjacent (and opposite).Form thus and have the parallel plane comb shaped structure that has the electrode surface of opposite polarity.
Have liquid to be clean to import to discharge in other words and send into continuously and be in each electrode 11,11 ', 11 by piping system 30 with import 35 and outlet 36 " ... and 21,21 ', 21 " ... between intermediate gaps in.
Electrode system shown in Figure 3 can move with direct current or alternating-current.Especially described system moves in the mode of continuous current, such as using every cm 2The current density of electrode area 2 to 500mA is moved.But described electric current also can be with pulse mode feed-in or can the conversion sense of current.
Described system also can move with alternating-current, and wherein said alternating-current advantageously is configured to delta current, sinusoidal current or platform electric current (Plateaustrom).Especially be in from 10 in this frequency -3In the scope of 1Hz.
As can be seen from Figure 3, described electrode system 10 and 20 is with planar single electrode 11 iWith 21 iParallel staggered mode forms the comb poles system.The substitute is, described electrode also can be configured to the structure of radial symmetry or cylinder symmetric, and then they are interlaced with each other equally.Scheme as an alternative, described electrode also can form the wire harness of corresponding symmetrical distribution.
At described electrode 11 iWith 21 iBetween can insert and be used for spaced-apart electrodes spatial separation scraper.This is at length not shown in the drawings.
Described electrode is made by suitable prior disclosed material from prior art, and can carry out surface structuration and handle.Advantageously so-called MMO (" mIxed mEtal oXide (mixed metal oxide) ") confirm it is suitable material.But, also can use other material such as diamond, platinum (Pt), silicon carbide (SiC), wolfram varbide (WC), titanium carbide (TiC), titanium nitride (TiN) or titanium carbonitride (TiCN).
Described positive electrode also can be made by the electrode materials as the consumption of iron (Fe), Stainless Steel Alloy, aluminium (Al) or carbon (C).Described negative potential is in this case by making as the material of iron (Fe), Stainless Steel Alloy, carbon (C) or aluminium (Al).
The mode that can be used for the mechanism that electrode cleans by layout is improved the structure by the equipment of Fig. 3.Wiping examination thing/scraper that can be by machinery, by ultrasonic, surface or material by automatic cleaning or also can clean by in liquid circulation, adding this mode of corresponding buoyancy aid.Illustrated equipment can have the foam separator corresponding to the synoptic diagram of Fig. 2, and this foam separator is such as by the overflow limit, by being arranged on the shower bath in liquid influent stream pipeline or the liquid discharge tube road or being made of the tripping device of machinery.In addition, described equipment can have and be used for oxygen (O 2) hydrogen (H in other words 2) tripping device.Especially during the course oxygen (the O of Chan Shenging 2) can further be used and such as the activation that can be used for biological settling tank.
The illustrated equipment in front allows to remove organic objectionable impurities with better way means on the technology with cheap cost from water.This method in paper-making industry in the scope of wastewater treatment through overtesting and be particularly suitable for reducing the CSB-value that causes by the lignin in Mierocrystalline cellulose is handled.
In being used in paper-making industry or paper pulp industry specially, illustrated equipment and the method for moving with this equipment always can be used in the place relevant with the reduction of CSB-value.This not only can be used to be reduced in the CSB that biologically can't reduce, yet especially also can be used to be converted to the CSB that can reduce biologically.Described method also can be used for the enriched material from filtration procedure is handled.In this case, especially can come to lead among the import of described groove or solid integral part before the import carries out the precomminution of machinery by decollator (Dispergator) to being in.Such decollator is such as being so-called Thorax agitator (Thoraxr ü hrer).
In addition, illustrated method can be carried out ultraviolet activatory mode in conjunction with the medium by one or many corresponding ultraviolet lamp liquid towards and carried out above.This not only is used to improve the deoxidization, degradation of objectionable impurities but also is used to improve its oxidative degradation.Especially advantageously, described method can be moved in the circulation with biological level (biologischer Stufe), wherein-as mention already-oxygen is used for the activation of the settling tank of biology.
Above special in the objectionable impurities of eliminating in the watery medium describes the method for described novelty, wherein especially lignin and the soil ulmin in the paper-making process is regarded as objectionable impurities.This is main objectionable impurities there.It is important in this that, reduce the effect of organic objectionable impurities by oxidation, wherein not only in suitable method utilization, also can determine to reduce the influence of objectionable impurities in known mode itself.Can adjust accordingly described equipment for this reason.
Illustrated method also can be used for the decomposition of the pigment dyestuff of liquid.Such pigment dyestuff is such as being used in press and/or the textile industry.For printing and/or dye, consider to use natural or synthetic pigment as tinting material.These tinting materials can dissolve in the solvent of liquid state usually, wherein especially preferably use watery solvent at present.
Remain in pigment dyestuff in the watery solvent and can be regarded as objectionable impurities on the meaning of the present invention when removing, its effect should be eliminated or should reduce at least.In this regard, exist with the water treatment by means of the method schematic view illustrating in the above in the same problem, and can use equipment as in Fig. 3, at length illustrating.
Utilize described equipment, can realize the reduction decomposition of pigment, but also can realize the oxygenolysis of pigment by means of Fig. 3 explanation.Not only can utilize the deoxidization, degradation of pigment but also can utilize its oxidative degradation at process aspect.
Except industrial special for press and textile industry and the application of also already decolouring for paper-making industry and paper pulp, also remove pigment dyestuff and the objectionable impurities that in waste water, underground water or process water, exists very at large effectively.
In a word, the reduction (CSB=by the CSB-value in the present invention CHemischer SAuerstoff bEdarf) obtain application potential widely.Also can be used to be reduced in the CSB that biologically can't reduce, can be but also can be used to produce at the CSB that biologically reduces.In order to be used in the environmental technology, can be separated in the oxygen (O that produces in the illustrated process 2) and use it for settling tank or the similarly activation of environmental protection equipment on the biology.Also can arrange like this, promptly objectionable impurities is decomposed as the process operation in the circulation with biological level.
Other is used to use the solution of the present invention, can be the processing from the enriched material of filtration procedure.In this case, can be before electrochemical treatment the solid integral part be carried out mechanically precomminution.Also watery medium or relevant therewith liquid are carried out the ultraviolet activation at this in case of necessity.

Claims (38)

1. be used to remove and/or decompose objectionable impurities from liquid and be particularly useful for removing method from the organic objectionable impurities of watery medium,
Wherein, the OH-atomic group by oxidisability obtains desired effect in liquid to be clean is arranged,
This method has following measure:
-described liquid is carried out successive handle,
-use the device that constitutes by positive and negative alternative electrode at this,
-wherein, described electrode structure be flat structures and corresponding electrode each other plane parallel ground arrange and
-wherein, described liquid is continuously delivered to electrode and, uses import and outlet (and using divider in case of necessity) for this reason its discharge,
-described OH-atomic group directly produces on electrode in liquid with electrochemical means,
-described OH-the atomic group that directly produces with electrochemical means is used to remove objectionable impurities, be used to make objectionable impurities to lose efficacy and/or be used to reduce its effect.
2. by the described method of claim 1, it is characterized in that use electrode device in order to produce the OH-atomic group with electrochemical means, described electrode device need be less than the voltage of 5V.
3. by the described method of claim 2, it is characterized in that the electrode in described electrode device alternately loads positive voltage or negative voltage.
4. by each described method in the aforementioned claim, it is characterized in that being used in paper-making industry or the paper pulp industry.
5. by each described method in the claim 1 to 4, wherein, the oxygen demand of chemistry is defined as having the standard of harmful substances, it is characterized in that the reduction (CSB=of CSB-value CHemischer SAuerstoff bEdarf).
6. by the described method of claim 5, it is characterized in that being reduced in the CSB that biologically can't reduce.
7. by the described method of claim 5, it is characterized in that being created in the CSB that biologically can reduce.
8. by each described method in the aforementioned claim, it is characterized in that processing from the enriched material of filtration procedure.
9. by the described method of claim 8, it is characterized in that, before electrochemical treatment, the solid integral part is carried out mechanically precomminution.
10. by the described method of claim 8, it is characterized in that, the relevant therewith in other words medium of liquid is carried out the ultraviolet activation.
11. by the described method of claim 3, it is characterized in that, the reduction decomposition of objectionable impurities especially lignin or soil ulmin be used on technology in paper-making industry or the paper pulp industry.
12. by the described method of claim 11, it is characterized in that, not only carry out the deoxidization, degradation of objectionable impurities but also carry out the oxidative degradation of objectionable impurities and on technology, utilize described degraded.
13. by each described method in the aforementioned claim, it is characterized in that, separate the oxygen (O that is produced 2) and use it for settling tank or the similarly activation of environmental protection equipment on the biology.
14., it is characterized in that described objectionable impurities is decomposed as the process operation in the circulation with biological level by each described method in the aforementioned claim.
15., it is characterized in that described process is moved with direct current by each described method in the aforementioned claim.
16., it is characterized in that described process moves and use about 2 to 500mA/cm in the continuous current mode by each described method in the aforementioned claim 2The current density of electrode area.
17., it is characterized in that, with pulse mode feed-in direct current by each described method in the aforementioned claim.
18. by each described method in the aforementioned claim, it is characterized in that described liquid treatment process is moved with alternating-current especially delta current, sinusoidal current and/or platform electric current, the frequency of wherein said alternating-current is in from 10 -3In the scope of 1Hz.
19., it is characterized in that described objectionable impurities is a pigment dyestuff by each described method in the aforementioned claim.
20., it is characterized in that described pigment dyestuff is natural pigment by each described method in the aforementioned claim.
21., it is characterized in that described pigment dyestuff is a synthetic pigment by each described method in the aforementioned claim.
22., it is characterized in that being used in the press by each described method in the aforementioned claim.
23., it is characterized in that being used in the textile industry by each described method in the aforementioned claim.
24. be used for implementing equipment by claim 1 or each described method of claim 2 to 23, has the mechanism that is used for producing the OH-atomic group with electrochemical means, it is characterized in that, exist by alternative device positive and that negative electrode constitutes, corresponding electrode (11 i, 21 i) arrange and exist to plane parallel import and outlet (35,36) each other, importing to discharge in other words by described import and outlet (35,36) has liquid to be clean and makes it continuously from described electrode next door process.
25., it is characterized in that described electrode (11 by the described equipment of claim 24 i, 21 i) be configured to radial symmetry.
26., it is characterized in that described electrode (11 by the described equipment of claim 24 i, 21 i) be configured to cylinder symmetric.
27., it is characterized in that described electrode (11 by the described equipment of claim 26 i, 21 i) interlaced with each other.
28., it is characterized in that described electrode (11 by the described equipment of claim 24 i, 21 i) the formation wire harness.
29., it is characterized in that described electrode (11 by the described equipment of claim 23 i, 21 i) carried out the surface structuration processing.
30., it is characterized in that described electrode (11 by the described equipment of claim 24 i, 21 i) by so-called MMO ( mIxed mEtal oXide)-the material formation.
31., it is characterized in that described MMO-material is diamond, platinum (Pt), silicon carbide (SiC), wolfram varbide (WC), titanium carbide (TiC), titanium nitride (TiN) and/or titanium carbonitride (TiCN) by the described equipment of claim 30.
32., it is characterized in that, as positive electrode (11 by the described equipment of claim 24 i) use especially electrode materials as the consumption of iron (Fe), Stainless Steel Alloy, aluminium (Al), aluminium alloy or carbon (C).
33., it is characterized in that, as negative potential (21 by the described equipment of claim 24 i) use electrode materials as iron (Fe), Stainless Steel Alloy, carbon (C) and/or aluminium (Al).
34., it is characterized in that, at described electrode (11 by each described equipment in the claim 24 to 33 i, 21 i) between insert and to be used for spaced-apart electrodes spatial separation scraper.
35. by each described equipment in the claim 24 to 33, it is characterized in that, exist the mechanism that is used for the electrode cleaning.
36., it is characterized in that described wiping examination thing/scraper that mechanism that electrode cleans is a machinery, the ultrasonic and corresponding buoyancy aid that is added on liquid circulation of being used for by the described equipment of claim 35.
37. by each described equipment in the claim 24 to 36, it is characterized in that, exist foam separator and/or divider.
38. by each described equipment in the claim 24 to 37, it is characterized in that, exist and be used for oxygen (O 2) and/or hydrogen (H 2) tripping device.
CNA2007800352935A 2006-07-25 2007-07-24 Method for the removal of pollutants from liquids and device for carrying out said method Pending CN101516785A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610034895 DE102006034895A1 (en) 2006-07-25 2006-07-25 Process for the removal of pollutants from liquids and apparatus for carrying out the process
DE102006034895.8 2006-07-25

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CN101516785A true CN101516785A (en) 2009-08-26

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CNA2007800352935A Pending CN101516785A (en) 2006-07-25 2007-07-24 Method for the removal of pollutants from liquids and device for carrying out said method

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EP (1) EP2043956A1 (en)
CN (1) CN101516785A (en)
DE (1) DE102006034895A1 (en)
WO (1) WO2008012303A1 (en)

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