CN101186359A - High-frequency impulse electrochemistry waste water treatment process and device thereof - Google Patents
High-frequency impulse electrochemistry waste water treatment process and device thereof Download PDFInfo
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- CN101186359A CN101186359A CNA2007101644839A CN200710164483A CN101186359A CN 101186359 A CN101186359 A CN 101186359A CN A2007101644839 A CNA2007101644839 A CN A2007101644839A CN 200710164483 A CN200710164483 A CN 200710164483A CN 101186359 A CN101186359 A CN 101186359A
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 25
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Abstract
The invention discloses a high frequency pulse electrochemical wastewater treatment technique. The wastewater is buffered, fully mixed and equally jetted to a pole plate conducted to a high frequency pulse power to generate electrochemical reaction, and the flocculant of the reacted wastewater is precipitated and discharged into a sludge concentration tank. The scruff of the wastewater is separated and discharged into the sludge concentration tank; the solid substance removed wastewater is discharged and enters into the successive treatment process. The invention also discloses a device to carry out the method: a DC high frequency pulse square-wave power and a multi-pole-plate parallel conduction technique are employed for the method, the metal pole plate forms a transient alternative induction pole under polarized high frequency induction and pulse polarization is further formed between the cations and anions in the water, thus effectively and equally distributing the ions in the water, effectively solving the separation and passivation of the liquid and greatly enhancing the reaction speed The invention also has obvious treatment effects on low salinity industrial wastewater of high concentration BOD5, COD<Cr>, NH4-N, and SS.
Description
Technical field
The present invention relates to a kind of wastewater processing technology and device thereof, particularly a kind of high-frequency impulse electrochemistry wastewater processing technology and device thereof belong to electrochemical construction equipment technical field and environmental protection field.
Background technology
At present, wastewater treatment in China is divided into four big classes substantially, i.e. physical treatment method (as filtration, precipitation, oil removal etc.), chemical treatment method (ion-exchange, chemical precipitation, advanced oxidation etc.), physico-chemical process (as coagulating sedimentation, air supporting etc.) and bioremediation (as activated sludge process, biomembrance process etc.).These methods by different combinations, have formed present various common waste water treatment process usually as a processing unit.Comprise unit such as filtration, sand setting, activated sludge process, precipitation, sterilization as conventional urban sewage treatment process, the waste water after the processing can reach emission standard.
And for high density, more unmanageable special waste such as percolate from garbage filling field, electroplating wastewater, waste water from dyestuff, paper waste etc., sewage disposal unit by routine is difficult to reach emission standard, promptly allow to qualified discharge, also need higher investment and working cost, be difficult to economically bear.As percolate, its COD
CrConcentration does not wait from 2000mg/L to 100000mg/L, more than the ammonia nitrogen concentration 1000mg/L, and BOD
5/ COD
CrBe 0.1～0.5, and along with the passing of garbage loading embeading time reduces gradually, for biochemical treatment has brought very big difficulty, waste water after the processing is difficult to reach the emission standard of design, the whole nation has only a few large-scale refuse landfill to utilize ultrafiltration and reverse osmosis process to make water outlet reach first discharge standard, but working cost improves greatly.
The electrochemical treatment method is a kind of relatively particular processing method in the field of waste water treatment, relates to the combination of modern physics and modern chemistry and a cross discipline---the electrochemistry of generation.The electrochemical treatment method is the utilization modern electrochemical theory, ionic reaction in comprehensive physics electric field, electronics, voltage, electro-adsorption, charge species electropolarization theory and the chemical reaction, redox reaction, catalytic oxidation-reduction reaction scheduling theory form exclusive electrochemical reaction sewage disposal mechanism.Sewage generally can produce four kinds of effects, i.e. electrolytic oxidation, electrolytic reduction, electrolytic flocculation and electrofloatation in electrolytic process.
In the prior art, the electrolysis treatment of sewage is divided into flow-through method and AC sine impulse method.The dc electrolysis facture, after starting working, will around positive and negative electrode, form high density negative ions sealing coat, other material in the sewage is produced barrier action, further reduced the ionic generation, make that the sewage outside barrier can not get effective processing, and the ionized liquid that produces electrolysis is isolated passivation, treatment effect is greatly reduced, improve the magnitude of current of handling simultaneously, increase electric power.The AC sine impulse method can effectively reduce this sealing coat, still, because its pulse width is bigger, the electrode turn-off time is short, makes effective discharge time of its electrode short, thereby the sealing coat around the generation electrode can not get effective release, so its liquid is isolated passivation, can not get basic solution.And aspect the metal electrode passivation, domesticly existing reduce the oxygen that comes out because of ionization in iron and the water with iron alloy and produce oxidation corrosion and be deposited on electrode surface, make the isolation of electrode surface and sewage and the passivation of generation.But it can't effectively solve the iron ion and the water oxygen generation oxygenizement of coming out because of ionization and be deposited on this root problem of electrode surface.Can not fundamentally solve the negative impact of metal electrode passivation equally to the electrolytic ionization effect.
Summary of the invention
The invention provides a kind of high-frequency impulse electrochemistry waste water treatment process, utilize the high-frequency impulse electrochemistry treatment technology, improved the processing efficiency of sewage greatly, effectively reduce processing cost, improve the clearance of all contaminations, can reach the continuous processing of high throughput high density pollution thing waste water.
The present invention also provides a kind of high-frequency impulse electrochemistry wastewater treatment equipment, by the high-frequency impulse electrochemistry technical finesse, can effectively reduce the load and the expense of subsequent disposal, reduces laid down cost widely.
A kind of high-frequency impulse electrochemistry waste water treatment process, comprise: waste water is through buffering, behind the thorough mixing, evenly be ejected on the pole plate, pole plate is communicated with high frequency pulse power supply, when current density between voltage, pole plate between pole plate, pulse-repetition, polar plate spacing when reaching certain condition with the reaction zone retention time of sewage, component in the waste water and pole plate generation redox reaction, and forming the solid-liquid separation effect that adsorbs come-up and flocculation sediment, the throw out post precipitation in the waste water enters sludge thickener; Scum silica frost in the waste water enters ash pit by the scraper plate separation, finally enters sludge thickener; Remove the waste water of solid matter and discharged, entered follow-up processing flow.
Described high frequency pulse power supply, the modulation of utilization microcomputerized control, adopt direct current high-frequency pulse square wave power supply, under the polarization high-frequency induction, metal polar plate forms transient state alternation induction electrode, and further produce the pulsation polarization between the positive and negative ion in water, thus it is uniform that the water intermediate ion is taken place, and the ion accumulation on the positive and negative electrode no longer takes place.Solve liquid effectively and isolated passivation phenomenon, reduced pole plate Fe on every side to greatest extent
2+Concentration, Fe
2+With OH
-Uniform distribution in electrolytic solution, speed of response improves greatly.Under the situation that adopts iron alloy or aluminum alloy anode, the possibility of metal passivation has also dropped to minimum.Described high frequency pulse power supply is a direct current high-frequency pulse square wave power supply, input voltage is AC380V, the input supply frequency is 50Hz, reverse frequency is 1000kHz, output supply voltage 0～500V is adjustable, and output frequency 300～2000Hz is adjustable, and dutycycle is 0.1～0.6 adjustable, output rating 2～30kW, the type of cooling is air-cooled.
The main effect of the electrochemical reaction of technology of the present invention has:
1, reductive action
Reduction reaction takes place on negative electrode, produces hydrogen molecule.
2H
++2e→2H→H
2↑
Nascent state (H) has very strong reducing power, hexavalent chrome reduction can be become trivalent chromium, and removes with chromium hydroxide precipitation.For many colouring substances based on the oxidation state composition, it can be reduced into colorless substance, thereby with color removal in the waste water.
2, removing heavy metals ion
OH in heavy metal ion and the brine electrolysis
-Generate metal hydroxides, form solid precipitation.
Cu
2++2OH
-→Cu(OH)
2↓
Ni
2++2OH
-→Ni(OH)
2↓
3, oxidizing reaction can be removed COD
CrAnd CN
-
The positive plate principal reaction:
Fe-2e→Fe
2+
Al-3e→Al
3+
4OH
--4e→2H
2O+2O→2H
2O+O
2↑
The nascent state (O) that anode produces has very strong oxidation capacity, can oxidizing water in the organic or inorganic compound, remove the COD in the water
CrOn the anode owing to emit nascent state (O) as oxygenant, oxidation CN
-, with CN
-Remove.
4, dephosphorization
Metal ion and phosphate radical reaction that pole plate is separated out by electrochemical action produce precipitation, and can form co-precipitation with other metal, reach best phosphor-removing effect.
Al
3++PO
4 3-→AlPO
4↓
Fe
3++PO
4 3-→FePO
4↓
5, coagulation is removed SS
The metal polar plate metal ion that dissociates out on positive plate produces Al (OH)
3Or Fe (OH)
3Precipitation.Al (OH)
3Or Fe (OH)
3Precipitation has throwing out.
6, grease and colloid are removed in the floating effect of removing
Coagulate in the process at electricity, anode and cathode surface constantly produce oxygen and hydrogen, and overflow with micro bubble, can adhere to floss and oils thing in the waste water, make its density diminish and floating to the water surface, produce the air supporting effect.It is more small with the bubble that the reliever dissolved air water produces than traditional air supporting method, and effect is stronger.
7, germicidal action
Usually trade effluent, especially wastewater from chemical industry contain the Cl of higher concentration
-, when external voltage reaches in the oxidizing electrode current potential Cl
-Be oxidized to the chlorine molecule, the chlorine molecule continues hydrolysis and produces HClO in water, and HClO can produce germicidal action with the germ deactivation of the overwhelming majority.
2Cl
--2e→Cl
2
Cl
2+H
2O→HCl+HClO
Waste water should guarantee to show slightly acid (pH3～5) before entering reactor, like this by the chemical reaction between metal (iron or aluminium) and the acid, accelerated the pole plate dissolution rate, concentration of metal ions improves, the carrying out that helps oxidation, reduction and coagulation, it is too fast to be unlikely dissolving again, increases polar plate loss.
A kind of high-frequency impulse electrochemistry wastewater treatment equipment mainly is made up of high frequency pulse power supply and reactor two portions.
Described high frequency pulse power supply is divided into five parts:
1, gives certain portions:, calculate operating frequency, dutycycle and working current according to voltage, current density and quantity of polar plate between the plate of sewage and processing requirements.
2, control and protection part:, simultaneously, system is protected according to electrochemical reactor electric current, temperature according to control the radio-frequency generator working order to certain portions.
3, high frequency waves producer: produce the needed high-frequency pulse square wave of electric coagulation machine.
4, isolation and amplifier section: the amplification of high-frequency impulse ripple signal, isolation are driven the IGBT invertor.
5, IGBT invertor: adopt IGBT to constitute bridge-type inverter, produce the pulse power.
Described reactor comprises housing and the outer service platform of housing, be provided with into water cloth pool, reaction zone, water outlet slag tap district, settling region in the housing, water inlet cloth pool is made of with the water distributor that links to each other with rising pipe water inlet pipe, uniform dashpot, uniform dashpot rising pipe in housing top one side; Reaction zone is located at water distributor top, is made of pole plate and high frequency pulse power supply conducting pole plate slot, polar plate bracket and some pole plates; Water outlet is slagged tap to distinguish and is located at housing top, is made of slag scraper, ash pit, scum pipe and ash pit rising pipe; Lower housing portion is located in the settling region, comprises bucket and shore pipe.Service platform is located at the outer side of housing, is provided with cat ladder, walks guidance tape, guardrail and aisle support.
Electrochemical waste water treatment device of the present invention, volume can be according to the size decision of wastewater treatment capacity, and material is that stainless steel is made; outer lining multiple glazing plastic cement, bottom are that steel construction supports, simultaneously ground protection; guarantee that promptly the cell body one-piece construction is firm, guarantee insulation again.Plate material adopts metallic iron or iron alloy, also available aluminum or aluminum alloy.
The present invention has following advantage:
1, the present invention adopts direct current high-frequency pulse square wave power supply as electrolysis power, can make negative ions uniform distribution in the waste water, and sufficient reacting has improved the utilization ratio of metal polar plate, and loss reduces more than 50%; And power consumption reduces greatly, is about 1/15～1/20 of common electrical solution.
2, the present invention realizes manually and control automatically, the level of automation height, treatment system can realize pH, ORP, liquid level etc. automatically control and add acid automatically, add alkali, dosing etc.
3, pole plate positive pole of the present invention and negative pole can regularly exchange activation, effectively prevent the pole plate passivation phenomenon.
4, the present invention to organism in the waste water and inorganic pollutant have reduction, oxidation, neutralization, flocculation, floating remove separate, comprehensive actions such as decolouring, sterilization, a step finishes, and simplifies sewage treatment process greatly, and to containing high density BOD
5, COD
Cr, NH
4-N, SS, in low salinity trade effluent positive effect is arranged.
5, electrochemical reactor equipment occupation of land of the present invention is little, and one-time investment is few, and is easy to adjust.And be provided with uniform dashpot, can water distribution uniformity, can adjust water quality again; Water distributor had both guaranteed water distribution uniformity, prevented to block the directed jet hole again; The slag scraper modern design, firmly effectively, bucket is in time got rid of sediment, and electrolytic reaction is carried out smoothly.
Operating parameter of the present invention and treatment effect such as following table
| Parameter | Value | |
| Operating parameter | Water inlet pH | 3～5 |
| Output frequency (Hz) | 300～2000 | |
| Dutycycle | 0.1～0.6 | |
| Current density (A/dm 2) | 0.2～2 | |
| Polar plate spacing (mm) | 5～20 | |
| Voltage between plate (V) | ＞2.0 | |
| Reaction times (min) | 10～45 | |
| Treatment effect | COD clearance (%) | 30～80 |
| BOD clearance (%) | 10～50 | |
| BOD/COD improves | 0.1～0.3 | |
| Chroma removal rate (%) | ＞90 | |
| SS clearance (%) | ≥85 | |
| PH | Improve 1～4 | |
| NH 4-N clearance (%) | 10～30 |
Description of drawings
Fig. 1 is a kind of high-frequency impulse electrochemistry reactor wastewater treatment process figure
Fig. 2 is for being the high frequency pulse power supply fundamental diagram
Fig. 3 is a kind of high-frequency impulse electrochemistry reactor assembly front view
Fig. 4 is a kind of high-frequency impulse electrochemistry reactor assembly side-view
Fig. 5 is a kind of high-frequency impulse electrochemistry reactor assembly vertical view
Fig. 6 is a kind of high-frequency impulse electrochemistry reactor assembly pole plate distribution plan
Fig. 7 is the uniform dashpot detail drawing of a kind of high-frequency impulse electrochemistry reactor assembly
Fig. 8 is a kind of high-frequency impulse electrochemistry reactor assembly water distributor detail drawing
Fig. 9 is a kind of high-frequency impulse electrochemistry reactor assembly slag scraper scraper plate detail drawing
Figure 10 is a kind of high-frequency impulse electrochemistry reactor assembly ash pit detail drawing
Embodiment
As shown in Figure 1, a kind of high-frequency impulse electrochemistry waste water treatment process, comprise: waste water cushions through uniform dashpot, behind the thorough mixing, evenly be ejected on the pole plate with the reaction zone of high frequency pulse power supply conducting and carry out electrochemical reaction, the throw out post precipitation enters sludge thickener in the reacted wastewater; Scum silica frost in the waste water enters sludge thickener after separating; Remove the waste water of solid substance and discharged, entered follow-up processing flow
As shown in Figure 2; high frequency pulse power supply; form with amplifier section, IGBT invertor by giving certain portions, control and protection part, high frequency waves producer, isolation; wherein control and protection part and high frequency waves producer are by microcomputer control; control and protection part basis are to certain portions control radio-frequency generator working order; the high-frequency impulse ripple that radio-frequency generator produces is isolated amplifier section pulse wave signal is amplified, isolates, and drives the IGBT invertor and produces pulse radio.
As Fig. 3～6, reactor comprises the service platform that housing 5 and housing are outer, is provided with into water cloth pool 1, reaction zone 2, water outlet slag tap district 3, settling region 4 in the housing.
Housing 5 is provided with the support reinforcing device, constitutes by supporting base plate 50, pillar stiffener 51, horizontal support 52 and diagonal ligament 53, groove top stiffening web 54, by the support reinforcing device, divides equally the weight of whole reactor, makes reactor firmly stable.
Water inlet cloth pool 1 is made of water inlet pipe 10, uniform dashpot 11, uniform dashpot rising pipe 12 and the water distributor 13 that links to each other with rising pipe, according to the water yield 3～5 of water distributors is set.Every water distributor is provided with a butterfly valve 15, is beneficial to regulate flow velocity and start-stop.The water distributor end is provided with support 16, guarantees that water distributor is firm.Uniform dashpot (as Fig. 7) inside has two dividing plates, dividing plate bottom adjacent with water inlet pipe 10 and the dividing plate top adjacent with rising pipe 12 are respectively equipped with a flowing hole 17, adopt the fluidised form of baffling up and down, can either control flow speed stability like this, again can be all and water quality.Uniform dashpot makes and reaches the hydraulic pressure equalization that flows to the water distributor under each pole plate the discharge that flows through each electrode pad and equate, satisfied the requirement of sewage equilibrium treatment to greatest extent.
As shown in Figure 8, the downward 45 degree uniform distribution directed jet holes 14 of water distributor 13 upper edge water distributor vertical axis.After waste water enters water distributor, enter reaction zone by fluid orifice, because the aperture is less, waste water is injected reaction zone with fast speeds.Pass through directed jet, make the current oriented flow be mapped to each pole plate, make the contact area of current and battery lead plate reach maximum, and can impact formed throw out after the iron ion that occurs in around the pole plate and the water oxygen generation oxidation effectively, make it that effectively deposition can not take place on plate, and precipitate along with current flow in the settling bath.Because the downward 45 degree uniform distribution of water distributor vertical axis are prolonged in the directed jet hole, when device is out of service, can avoid throw out to stop up the directed jet hole again.
Reaction zone 2 comprises pole plate slot 20, polar plate bracket 21, pole plate 22, reaction zone adopts the multipole plate conduction technology that walks abreast, the two ends pole plate connects power positive cathode respectively, all the other pole plates do not connect power supply, but directly insert uniform distribution in the waste water, make full use of the conductive capability of the salinity in the waste water, and ionic concn is controlled within certain scope, make and reach required voltage of electrolysis and electric current between the pole plate, this mode has increased the contact area of pole plate and waste water greatly, and has simplified the wiring construction of pole plate, has reduced the possibility of equipment failure.Pole plate positive pole and negative pole can regularly exchange activation, effectively prevent the pole plate passivation phenomenon.
Water outlet is slagged tap district 3 mainly by ash pit 37 (as Figure 10), scum pipe 32, slag scraper 36, rising pipe 33 formations.Scum silica frost enters ash pit under the effect of slag scraper, establish a slope in the ash pit, and about 0.2 ° with the horizontal plane angle, scum silica frost can flow into scum pipe certainly and enter sludge thickener.Slag scraper is made up of step-down gear 30 and scraper plate 31, and motor cabinet is established gusset 34 and supported.Its middle scraper (as Fig. 9) is made up of the identical blade 39 of two block structures that is fixed on the scraper shaft 38, according to waterwheel running in ancient times principle design, drives flowing of scum silica frost by rotation, and scum silica frost is scraped into ash pit.The lodicule end is provided with banister brush 35, can slow down because the scraper plate rotating speed is too fast scum silica frost is kicked up, and avoid occurring the phenomenon that ash pit brought too many water into by the rigidity scraper plate.The slag scraper step-down gear is fixed on stainless steel bolt on the motor cabinet of housing, drives scraper shaft by belt and rotates, and lodicule is fixed on the scraper shaft, rotates with axle, and scum silica frost is scraped.Slag scraper can on-the-spotly be installed, and is beneficial to maintenance and transportation.That the fixed installation of the slag scraper equipment that makes takes up space is little, the operation simple, scrapes slag equipment with movable type and compares, and can improve the stability and the work-ing life of equipment.The reaction zone water level a little more than ash pit at the bottom of, avoid scum silica frost to flow out, and waste water also can flow into rising pipe smoothly with water outlet, enter the subsequent disposal unit.
Settling region 4 is made up of bucket 40 and shore pipe 41, and valve is set.The bigger solid precipitation of proportion that reaction zone produces sinks to bucket along pole plate, and regularly enters sludge thickener.
The operational zone comprises, cat ladder 55, walks guidance tape 56, guardrail 58 and aisle and supports 57, and all parts all scribble insullac, guarantee safety.Operator can observe on the service platform of aisle and handle phenomenon, in time adjust.
Adopt the wastewater treatment process of apparatus of the present invention: waste water enters uniform dashpot 11 by water inlet pipe 10, enter reaction zone through uniform dashpot rising pipe 12 and water distributor 13, under the effect of direct current high frequency pulse power supply, processes such as waste water generation electrolysis, redox, coagulation air-float, water pollutant concentration reduces greatly, throw out in the waste water of reaction back sinks to bucket 40, enters sludge thickener by shore pipe 41; Waste water and scum silica frost enter slag scraper 36 together and handle, and scum silica frost enters sludge thickener by scum pipe 32, and the waste water of removing solid substance enters follow-up processing flow by ash pit rising pipe 33.
Application examples:
Wenzhou chemical industry company limited main products have sodium alginate, m-nitrobenzene sodium sulfonate, Xue Fo Shi salt and N-ethyl-Phenhenzamine-3 '-blue 2# (acid blue 9 #) product of sulfonic acid, pigment Sunshine Red, high-content food.
Its waste water main source is reaction back organic liquid waste, bath water and pigment washing water.Waste water mainly comprises ethanol, diester class, amine salt and other unreacted article, and the waste water composition is comparatively complicated, mainly contains golden yellow, redness and blue three strands of waste water by the color branch.
Former water COD, colourity are higher, and through experimental analysis, decision adopts the method for electrolysis+materialization+biochemistry to handle this waste water.
Electrochemical reaction appts of the present invention is adopted in electrolysis, and the processing water yield is 10t/h, and operational condition is U=300V, I=80A, and output frequency 300Hz, dutycycle is 0.5, current density is 0.8～0.9dA/m
2, as follows through the laggard effluent quality of electrochemical reactor:
| Index | Water inlet | Water outlet | Clearance |
| COD(mg/l) | 32000 | 14000 | 57％ |
| BOD(mg/l) | 9000 | 8000 | 11％ |
| BOD/COD | 0.28 | 0.57 | |
| PH | 5.0 | 7～7.5 | |
| Colourity (doubly) | 100000 | 200 | 99.8％ |
| SS(mg/l) | 600 | 70 | 88％ |
| NH 4-N | 300 | 250 | 16％ |
After waste water was handled through electrochemical reactor, COD, colourity, SS all declined to a great extent, and especially BOD/COD is than rising to 0.57 from 0.28, and biodegradability is strengthened greatly, and for follow-up biochemical treatment unit provides extraordinary condition, processing cost is 1.68 yuan/m
3, this is that other treatment technologies are incomparable.
Claims (10)
1. high-frequency impulse electrochemistry waste water treatment process, comprise: waste water is through buffering, behind the thorough mixing, evenly be ejected on the pole plate, pole plate is communicated with high frequency pulse power supply, adjust between plate current density between voltage, pole plate, pulse-repetition, dutycycle, polar plate spacing from the reaction times, make component and pole plate generation redox reaction in the waste water, the reaction back forms the solid-liquid separation effect of absorption come-up and flocculation sediment, and throw out enters sludge thickener through post precipitation in the waste water; Scum silica frost in the waste water enters ash pit by the slag scraper separation, finally enters sludge thickener; The preliminary waste water of removing solid matter is discharged, and enters follow-up processing flow.
2. high-frequency impulse electrochemistry waste water treatment process as claimed in claim 1, it is characterized in that: described high frequency pulse power supply is a direct current high-frequency pulse square wave power supply, output supply voltage is 0～500V, and output frequency is 300～2000Hz, and dutycycle is 0.1～0.6; Voltage＞2.0V between described plate, current density 0.2～2A/dm between plate
2, distance between plates is from 5～20mm, reaction times 10～45min.
3. a high-frequency impulse electrochemistry wastewater treatment equipment is characterized in that: be made up of high frequency pulse power supply and reactor two portions; Described reactor comprises housing (5) and the outer service platform of housing, be provided with into water cloth pool (1), reaction zone (2), water outlet slag tap district (3), settling region (4) in the housing, water inlet cloth pool (1) is made of water inlet pipe (10), uniform dashpot (11), uniform dashpot rising pipe (12) and the water distributor that links to each other with rising pipe (13) in housing top one side; Reaction zone (2) is located at water distributor (13) top, is made of pole plate (22) and high frequency pulse power supply conducting pole plate slot (20), polar plate bracket (21) and some pole plates (22); The water outlet district (3) of slagging tap is located at housing top, is made of slag scraper (36), ash pit (37), scum pipe (32) and ash pit rising pipe (33); Lower housing portion is located in settling region (4), comprises bucket (40) and shore pipe (41).
4. high-frequency impulse electrochemistry wastewater treatment equipment as claimed in claim 3, it is characterized in that: described housing (5) is provided with the support reinforcing device, and the support reinforcing device is made of the groove top stiffening web (54) of support base plate (50), pillar stiffener (51), horizontal support (52), diagonal ligament (53) and the case top of housing bottom.
5. high-frequency impulse electrochemistry wastewater treatment equipment as claimed in claim 3, it is characterized in that: described uniform dashpot (11) inside has two dividing plates, and dividing plate bottom and with rising pipe (13) the adjacent dividing plate top adjacent with water inlet pipe (10) are respectively equipped with a flowing hole (17).
6. high-frequency impulse electrochemistry wastewater treatment equipment as claimed in claim 3 is characterized in that: the downward 45 degree uniform distribution directed jet holes (14) of described water distributor (13) upper edge water distributor vertical axis.
7. high-frequency impulse electrochemistry wastewater treatment equipment as claimed in claim 3, it is characterized in that: described slag scraper (36) is made up of step-down gear (30) and scraper plate (31), scraper plate (31) is made up of the identical blade (39) of two block structures that is fixed on the scraper shaft (38), step-down gear (30) drives scraper shaft (38) by belt and rotates, and lodicule (39) end is provided with banister brush (35).
8. high-frequency impulse electrochemistry wastewater treatment equipment as claimed in claim 3 is characterized in that: described slag scraper (36) is fixed by threaded fastener and housing.
9. high-frequency impulse electrochemistry wastewater treatment equipment as claimed in claim 3 is characterized in that: described ash pit is established a slope in (37), 0.2 ° of slope and horizontal plane angle.
10. high-frequency impulse electrochemistry wastewater treatment equipment as claimed in claim 3 is characterized in that: described service platform is located at the outer side of housing, is provided with cat ladder (55), walks guidance tape (56), guardrail (58) and aisle support (57).
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