CN201254506Y - Continuous internal electrolytic apparatus for dyeing wastewater treatment - Google Patents
Continuous internal electrolytic apparatus for dyeing wastewater treatment Download PDFInfo
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- CN201254506Y CN201254506Y CNU2008200381268U CN200820038126U CN201254506Y CN 201254506 Y CN201254506 Y CN 201254506Y CN U2008200381268 U CNU2008200381268 U CN U2008200381268U CN 200820038126 U CN200820038126 U CN 200820038126U CN 201254506 Y CN201254506 Y CN 201254506Y
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Abstract
The utility model relates to a wastewater treating device in dyeing, which comprises a filtering core arranged on a hair filter clapboard; a negative-pressure suction pipe and a water outlet pipe are arranged on the wall body of the hair filter; a filtering core is arranged between an outlet end of the negative-pressure suction pipe and an inlet end of a drain pipe; an outlet end of the drain pipe is connected with an water inlet pipe of a water pump; an water outlet pipe of the water pump can extend into an internal electrolysis tower to be connected with a disc-type reverse water distribution pipe; a reverse backwashing device is arranged at the top end of a central lifting pipe, and is connected at the lower surface of a clapboard arranged in the internal electrolysis tower; a wastewater outlet device is arranged on the upper surface of the clapboard; a wastewater outlet pipe of the wastewater outlet device is extended out of the internal electrolysis tower; a drain pipe is also arranged on the wall body positioned above the clapboard in the internal electrolysis tower; a spiral wound spray system is arranged in an adjusting tower; an outlet end of the adjusting tower is connected with an inlet end of the activated carbon filter through a pipe body; and a water outlet pipe is arranged on the activated carbon filter. The wastewater treating device has the advantages that the wastewater treating effect is fine, the filling material is unnecessary to be changed, so as to avoid the iron mud secondary pollution.
Description
Technical field
The utility model relates to a kind of device of handling dyeing back waste water, and especially a kind of iron-carbon micro-electrolysis technology of utilizing is carried out the continuous inner electrolyser that dyeing waste-water is handled.
Background technology
At present, allow iron carbon bed that the organic macromolecule of decomposition ability is arranged, generally need to add hydrogen peroxide, the ferrous ion catalysis that utilizes little electrolysis to produce, generating hydroxyl radical free radical just might the decomposition and inversion organic pollutant.Equally, reaction will just can be carried out under the tart condition.According to engineering test, the incipient effect of the little electrolysis of iron carbon bed is very desirable, particularly handles tart organic waste water, but operation after two months, and effect sharply descends.On the one hand, iron mud stops up, and degraded product wraps up the iron carbon surface and the iron charcoal can't effectively be contacted on the other hand, can not form galvanic cell, and little electrolytic main effect can't be carried out, and causes effect to descend.Back flushing can slow down iron mud stops up, but can't resolve effect decline problem, often needs to change filler, and very big in replacing filler workload in actual engineering.And iron mud causes secondary pollution, can't handle.
Little electrolysis mostly is to adopt fixed iron carbon bed process, and hardening of iron carbon bed is a very headachy problem.The micro electrolysis tech of saying can solve the problem that hardens, but as long as use fixed bed, hardens and can take place sooner or later. and aeration does not have much usefulness yet.
Solving hardens must break fixed bed, avoids iron mud to stop up.In case but problem is to break fixed bed, two kinds of particulate matter contacts of iron-carbon weaken, and the electronics that the iron oxidation loses is difficult to flow to carbon, causes the H ion to get electronics at the iron particle, the H of generation
2Wrapping the iron particle, making it be difficult to continue oxidation dissolution.Do not have the dissolving of iron, can not realize yet with little electrolysis pretreatment waste water.The little electrolysis that begins fluidized-bed replacement fixed bed on probation that has, but fluidized-bed iron is difficult to tight the contact with carbon, the microbattery loop is poor, and speed of response is slow.Therefore, if can solve iron loses in the fluidized-bed stream of electrons to problem, just needn't use fixed bed, the problem that hardens just can not exist yet, iron filings replenish also convenient., but can cause the phenomenon of COD " bounce-back " in the time afterwards, its major cause is after after a while, degraded product wraps up the iron carbon surface gradually and the iron charcoal can't effectively be contacted, can not form galvanic cell, little electrolytic main effect can't be carried out, and causes treatment effect worse and worse.
Running cost relatively biological treatment is higher, though first comparatively speaking investment is lower, in actual motion owing to the processing iron mud that need not stop, change iron filings and carbon granule, very big of the labour intensity of manpower, and also increased the cost of labor of handling.
See that from the utilization of present reality iron-carbon micro-electrolysis also is confined to some industry wastewater treatment certain advantage be arranged, but still have many problems to need to solve in actual use, this also is the problem that we water treatment investigator need solve.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of good waste water treatment effect is provided, need not the continuous inner electrolyser for wastewater treatment of dyeing changing filler, avoid causing the secondary pollution of iron mud.
The technical scheme that provides according to the utility model, continuous inner electrolyser for wastewater treatment of dyeing, be included in the hair filter internal frame and be provided with dividing plate, dividing plate is provided with filter core, on the hair filter wall body, be provided with negative pressure straw and rising pipe, be provided with filter core between the exit end of negative pressure straw and the entrance end of drain pipe, the exit end of drain pipe connects the water inlet pipe of water pump, in stretching into, the rising pipe of water pump is connected with the reverse water distributor of disc type in the electrolysis tower, be filled with electrolysis material particle in the interior electrolysis tower, the reverse water distributor of disc type is enclosed within inverted loudspeaker suction inlet top and sprays water downwards, loudspeaker suction inlet and central riser tube join, central authorities riser tube top is provided with reverse backwash device, dividing plate lower surface in reverse backwash device is connected in and is erected in the electrolysis tower, upper surface at this dividing plate is provided with out sewage device, the sewage outlet pipe that goes out sewage device stretches out outside the interior electrolysis tower, be provided with air compressor in interior electrolysis tower outside, loudspeaker suction inlet lower position in its air inlet valve stretches in the electrolysis tower, on the wall body above the interior electrolysis tower internal partition, be provided with drain pipe, this drain pipe and ultraviolet tube entrance end join, the exit end of ultraviolet tube connects the entrance end of ultraviolet ozonizer, the exit end of ultraviolet ozonizer and the water inlet pipe of water pump join, the rising pipe of water pump joins with adjusting tower entrance end, in regulating tower, be provided with the wound form spray equipment, the exit end of adjusting tower joins by the entrance end of body and activated charcoal filter, and activated charcoal filter is provided with rising pipe.
The drain pipe of pipeline between ultraviolet ozonizer and the water pump and soda acid storage tank joins.The reverse water distributor of disc type is arranged on bottom electrolysis material particulate below.
Good waste water treatment effect during equipment work of the present utility model need not to change filler, avoids causing the secondary pollution of iron mud, makes operator's labour intensity reduce greatly.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure: it is included in hair filter 1 internal frame and is provided with dividing plate, dividing plate is provided with filter core 3, on hair filter 1 wall body, be provided with negative pressure straw 2 and rising pipe, be provided with filter core 3 between the exit end of negative pressure straw 2 and the entrance end of drain pipe, the exit end of drain pipe connects the water inlet pipe of water pump 6, in stretching into, the rising pipe of water pump 6 is connected with the reverse water distributor 7 of disc type in the electrolysis tower 22, be filled with electrolysis material particle in the interior electrolysis tower 22, the reverse water distributor 7 of disc type is enclosed within inverted loudspeaker suction inlet 8 tops and sprays water downwards, loudspeaker suction inlet 8 joins with central riser tube 9, central authorities riser tube 9 tops are provided with reverse backwash device 10, dividing plate lower surface in reverse backwash device 10 is connected in and is erected in the electrolysis tower 22, upper surface at this dividing plate is provided with out sewage device 11, the sewage outlet pipe that goes out sewage device 11 stretches out outside the interior electrolysis tower 22, be provided with air compressor 13 in interior electrolysis tower 22 outsides, loudspeaker suction inlet 8 lower positions in its air inlet valve 12 stretches in the electrolysis tower 22, on the wall body above interior electrolysis tower 22 internal partitions, be provided with drain pipe, this drain pipe and ultraviolet tube 16 entrance ends join, the exit end of ultraviolet tube 16 connects the entrance end of ultraviolet ozonizer 15, the water inlet pipe of the exit end of ultraviolet ozonizer 15 and water pump 20 joins, the rising pipe of water pump 20 joins with adjusting tower 17 entrance ends, in regulating tower 17, be provided with wound form spray equipment 18, the exit end of adjusting tower 17 joins by the entrance end of body and activated charcoal filter 21, and activated charcoal filter 21 is provided with rising pipe.
The pipeline between ultraviolet ozonizer 15 and the water pump 20 and the drain pipe of soda acid storage tank 19 join.The reverse water distributor 7 of disc type is arranged on bottom electrolysis material particulate below.
The principle of work of electrolytic colouring wastewater treatment equipment is as follows continuously:
Electrolytic colouring wastewater treatment equipment continuously; consider that at first all waste water generations all can exist certain solid particulate and fiber; must at first remove; allowing the fewer liquid of solid particulate and fibre content enter continuously interior electrolysis tower weight point handles; the water inlet position of electrolysis tower 22 is downward from the machine top continuously; water distribution uniformity below the electrolysis material particle in continuously in the electrolysis tower 22; along with water level slowly raises in interior electrolysis tower; water surface contact is positioned at the electrolysis material particle of the lowest layer; water is done regular Blang labyrinth move (speed m/100him) from bottom to top along electrolysis material particle then; fully contact with the electrolysis material; through abundant electrolysis process; clean water after the processing is from interior electrolysis tower 22 top water outlets; because the principle of gravity settling; electrolysis material particle moves downward; and gas is carried the electrolysis material that will pollute and is promoted from central riser tube 9 (washed-out sand district); through sedimentation downwards after the backwash; circulation repeatedly; shape loudspeaker suction inlet 8 and central riser tube 9 are inverted in one of base fabric design at interior electrolysis tower 22; electrolysis tower 22 air outside compressors 13 are sent the pressurized air through overregulating in utilizing; with solid and the O-fiber that decomposes; upwards promote from central riser tube 9; reverse backwash device 10 (washed-out sand district) washing through interior electrolysis tower 22 tops; clean electrolysis material particle is got back in the interior electrolysis tower 22; refuse matter is overflowed outside the interior electrolysis tower 22 from going out sewage device 11; go round and begin again; circulation continuously; under the outer power and the interaction of compressed-air actuated internally-powered of pump delivery; electrolysis material particle clashes into mutually; oscilaltion; solution is hardened; iron mud stops up; solve degraded product and wrap up the iron carbon surface gradually, and the iron charcoal can't effectively be contacted, can not form the disadvantage of galvanic cell.The outside air feed of the tower of electrolysis has simultaneously solved the purpose of oxygenation again.
The principle of the internal electrolysis of waste water is very simple, utilizes exactly to exist potential difference between iron-carbon granule and formed numerous trickle galvanic cell.Iron-carbon micro-electrolysis is when being immersed in iron filings and carbon granule in the acid waste water, because the difference in Electrode Potential between iron and the carbon can form numerous little galvanic cell in the waste water.These trickle batteries are to become negative electrode with the low iron of current potential, and the carbon that current potential is high is done anode, and electrochemical reaction takes place in containing the aqueous solution of acidic electrolyte bath.The result of reaction is that iron is subjected to corroding the iron ion that becomes divalence and enters solution.Because iron ion has coagulation, there is a natural attraction between the sexes with the particulate of faint negative charge in it and the pollutent, form more stable throw out (also being iron mud) and remove, in order to increase potential difference, promote the release of iron ion, in iron-carbon bed, add a certain proportion of copper mine slag, nickel minerals slag, lead ore residue etc. (because above material all has positive charge, and dyeing is negative ion).Wherein the iron that current potential is low becomes anode, and the carbon that current potential is high becomes negative electrode, under acid aerobic condition electrochemical reaction takes place, and its reaction process is as follows:
Anode (Fe): Fe-2e → Fe
2+, negative electrode (C): 2H
++ 2e → 2[H] → H
2, in the reaction, generation the Fe of status nascendi
2+With atom H, they have high chemically reactive, can change many organic structures and characteristic in the waste water, make effects such as organism generation chain rupture, open loop.
In the electrolysis tower continuous aeration is arranged continuously, i.e. oxygenation and prevent that iron filings from hardening.Also following reaction: O can take place
2+ 4H
++ 4e → 2H
2O; O
2+ 2H
2O+4e → 4OH
-2Fe
2++ O
2+ 4H
+→ 2H
2O+Fe
3+The OH that generates in the reaction
-Be the reason that water outlet pH value raises, and by Fe
2+The Fe that oxidation generates
3+Hydrolysis generates the big Fe (OH) of the polymerization degree gradually
3The colloid flocculation agent can adsorb, condense the pollutent in the water effectively, thereby strengthens the decontamination effect improving to waste water.
Crucial device is continuously interior electrolysis tower in the technology, and continuously interior electrolysis tower is a high-order tower.Be in the electrolysis tower waste water to be handled in packing into continuously by certain mass ratio or volume ratio as filler waste iron filing and inertia carbon (as graphite, coke, gac, coal, copper mine slag, nickel minerals slag, lead ore residue etc.) particle.
At present in the utility model process, mainly done the influence of pH value, the residence time, iron-carbon ratio, aeration time, water inlet COD concentration, temperature in the various experimental studies to treatment effect, iron-carbon micro-electrolysis has been analyzed following factor affecting:
1, the waste water potential of hydrogen is to the influence of treatment effect
The pH value is handled iron-carbon and is had a significant impact, and the pH value of water inlet is low more, and the CODCr clearance is high more.Conclusion is that into water pH value is generally between 2 to 4.Reason is the electropotential that low pH can improve oxygen, strengthens little electrolytic potential difference, promotes electrode reaction.
2, the residence time is to the influence of treatment effect
Conclusion be the residence time from 30min to 120min, the CODCr clearance progressively raises, it is little to the water outlet influential effect to prolong the residence time thereafter again.
Electrolysis treatment through continuously interior electrolysis tower 22, can decolour and remove unstable impurity such as COD, the utility model adopts ultraviolet ozonizer 15, it is connected on the outlet pipeline, by produced simultaneously photodegradation and ozonization in the ultraviolet ozonizer, thoroughly removed the karyomit(e) in the water, COD and bacterium etc., the creeping discharge ceramic plate of ultraviolet ozonizer 15 is core components of ozonizer.Adopt the creeping discharge ceramic plate, produce the ultraviolet ozonizer 15 of excellent property, the creeping discharge ceramic plate is the creeping discharge that utilizes on the ceramic insulation dielectric surface, produces the device that low-temperature plasma is realized ozone generation function.
Positive is discharge electrode (being generally wire), and the back side is induction electrode (being generally tabular), and ground connection.When acting on very not high voltage on the two poles of the earth, because the good insulation of ceramic substrate is difficult to occur discharge channel.Voltage between polarity is greater than certain threshold value, and during with high frequency simple alternating current electro ultrafiltration, carries out corona discharge near the surface limited discharge electrode.At this moment, the ceramic insulation dielectric surface is equivalent to a pole plate, and under the effect of high-frequency and high-voltage sinusoidal ac, the surface is constantly captured and launched electric charge near the discharge electrode.When voltage reaches the critical discharge inception voltage Uth of positive half cycle, begin discharge, near the poly-dielectric surface discharge electrode of positive charge, promptly electronics is accelerated to very that high-energy is transferred to discharge electrode from dielectric surface.Along with voltage raises, discharge continues, and more positive charge is bound in dielectric surface, and this process lasts till crest voltage U always.Discharge process stops, and the dielectric surface positive charge does not disappear.When voltage begins to descend, the dielectric surface positive charge is still motionless, discharge does not take place, continue to drop to the critical discharge inception voltage-Uth of negative half period always, discharge beginning at this moment, the positive charge of dielectric surface leaves, negative charge accumulates in the surface, be that electronics is accelerated to very that high-energy is transferred to dielectric surface from discharge electrode, this process lasts till negative half period crest voltage-Up, and discharge process stops.When voltage is elevated to the critical discharge inception voltage Uth of positive half cycle once more, the positive corona discharge begins again, whole discharge process comes to this and hockets, therefore, the creeping discharge process is exactly that the electrostatic balance state of dielectric surface is set up repeatedly and destroyed, puncturing repeatedly of surface gas and charge and discharge the process of the charges of different polarity on the dielectric surface repeatedly.The material selection tungsten electrode and the Al of creeping discharge device
2O
3Ceramic substrate is because the thermal expansivity of tungsten and Al
2O
3Pottery is close, and the rear electrode that is heated can not thrown off with pottery, and simultaneously, ceramic substrate has good insulation and physical strength.So this creeping discharge device has good electricity, machinery, heat and chemical property.
Because energy density is higher during the ceramic plate discharge, temperature rise is fast, and the ozone productive rate is descended rapidly.The utility model adopts the through type water-cooled, ultraviolet ray creeping discharge ceramic plate is applied in the water treatment, require the ozonizer that ozone output is big, concentration is high, therefore, adopt the combination of multi-disc creeping discharge ceramic plate, be enclosed in the small volume container, source of the gas gas is passed through along the ceramic plate discharging surface, obtain high yield ozone with high concentration gas.The ozonizer of this form, therefore its efficient height, low in energy consumption, adopts the gas series connection to enter each ceramic plate, can obviously improve ozone output under the prerequisite that guarantees ozone concn.Treated waste water, if can with reuse water require identical, treated in water can direct reuse.Need reach national grade one discharge standard if handle later water, pH value and charcoal absorption microparticle and detoxification must be adjusted through reaction tower in the back.
Claims (3)
1, a kind of continuous inner electrolyser for wastewater treatment of dyeing, be included in hair filter (1) internal frame and be provided with dividing plate, dividing plate is provided with filter core (3), on hair filter (1) wall body, be provided with negative pressure straw (2) and rising pipe, be provided with filter core (3) between the exit end of negative pressure straw (2) and the entrance end of drain pipe, the exit end of drain pipe connects the water inlet pipe of water pump (6), it is characterized in that: be connected with the reverse water distributor of disc type (7) in the electrolysis tower (22) in the rising pipe of water pump (6) stretches into, be filled with electrolysis material particle in the interior electrolysis tower (22), the reverse water distributor of disc type (7) is enclosed within inverted loudspeaker suction inlet (8) top and sprays water downwards, loudspeaker suction inlet (8) joins with central riser tube (9), central authorities riser tube (9) top is provided with reverse backwash device (10), dividing plate lower surface in reverse backwash device (10) is connected in and is erected in the electrolysis tower (22), upper surface at this dividing plate is provided with out sewage device (11), the sewage outlet pipe that goes out sewage device (11) stretches out outside the interior electrolysis tower (22), be provided with air compressor (13) in interior electrolysis tower (22) outside, loudspeaker suction inlet (8) lower position in its air inlet valve (12) stretches in the electrolysis tower (22), on the wall body of interior electrolysis tower (22) internal partition top, be provided with drain pipe, this drain pipe and ultraviolet tube (16) entrance end joins, the exit end of ultraviolet tube (16) connects the entrance end of ultraviolet ozonizer (15), the water inlet pipe of the exit end of ultraviolet ozonizer (15) and water pump (20) joins, the rising pipe of water pump (20) joins with adjusting tower (17) entrance end, in regulating tower (17), be provided with wound form spray equipment (18), the exit end of adjusting tower (17) joins by the entrance end of body and activated charcoal filter (21), and activated charcoal filter (21) is provided with rising pipe.
2, continuous inner electrolyser for wastewater treatment of dyeing as claimed in claim 1 is characterized in that: the pipeline between ultraviolet ozonizer (15) and the water pump (20) and the drain pipe of soda acid storage tank (19) join.
3, continuous inner electrolyser for wastewater treatment of dyeing as claimed in claim 1 is characterized in that: the reverse water distributor of disc type (7) is arranged on bottom electrolysis material particulate below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200381268U CN201254506Y (en) | 2008-06-11 | 2008-06-11 | Continuous internal electrolytic apparatus for dyeing wastewater treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200381268U CN201254506Y (en) | 2008-06-11 | 2008-06-11 | Continuous internal electrolytic apparatus for dyeing wastewater treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201254506Y true CN201254506Y (en) | 2009-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200381268U Expired - Lifetime CN201254506Y (en) | 2008-06-11 | 2008-06-11 | Continuous internal electrolytic apparatus for dyeing wastewater treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201254506Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314508B (en) * | 2008-06-11 | 2010-06-23 | 强光初 | Continuous inner electrolyser for wastewater treatment of dyeing |
-
2008
- 2008-06-11 CN CNU2008200381268U patent/CN201254506Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314508B (en) * | 2008-06-11 | 2010-06-23 | 强光初 | Continuous inner electrolyser for wastewater treatment of dyeing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090610 Effective date of abandoning: 20080611 |