CN202063803U - Combined organic wastewater treatment system - Google Patents
Combined organic wastewater treatment system Download PDFInfo
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- CN202063803U CN202063803U CN2011201506296U CN201120150629U CN202063803U CN 202063803 U CN202063803 U CN 202063803U CN 2011201506296 U CN2011201506296 U CN 2011201506296U CN 201120150629 U CN201120150629 U CN 201120150629U CN 202063803 U CN202063803 U CN 202063803U
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- reaction zone
- inlet pipe
- organic wastewater
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model relates to a combined organic wastewater treatment system which belongs to the technical field of water treatment and comprises an ultrafiltration device, an oxidation device and a biochemical treatment device which are sequentially communicated. The combined organic wastewater treatment system is integrated with the advantages of ultrasound, ozone and iron-carbon micro-electrolysis and electro-catalytic oxidation, and ensures that ultrasound, ozone and iron-carbon micro-electrolysis and electro-catalytic oxidation have mutual synergistic effect, so that not only are the wastewater treatment efficiency and effect improved, but also the wastewater treatment cost is reduced.
Description
Technical field
The utility model relates to a kind of compound organic wastewater treating system, belongs to water-treatment technology field.
Background technology
The development of modern industry, particularly pharmacy industry, textile industry, metallurgical industry, electronics, plating and petroleum chemical enterprise etc. makes that to contain difficult degradation organic contamination trade effluent increasing.Organism in the organic waste water since spy such as its Stability Analysis of Structures, biodegradability are poor, strong toxicity cause being difficult to solution with physics, chemistry, the biological method of routine.
Advanced oxidation processes (Advanced Oxidation processes is called for short AOPs) has overcome the O that common oxidation style exists
3, H
2O
2And Cl
2Deng shortcoming such as the oxidation capacity of oxygenant is not strong and selective, more and more draw attention with its unique advantage.High-level oxidation technology commonly used at present mainly contains Fenton method, oxidizing, flocculating method, ozone method, ultrasonic degradation method and photocatalytic method and electrochemical process.But a large amount of applied researcies shows that also the rate of oxidation of single oxidation technology means and efficient all can not satisfy the requirement of degradation of organic substances.For this reason, development in recent years improve the correlation combiner technology of oxidation efficiency.Mainly comprise: photoelectrocatalysioxidization oxidization technology, a ultrasonic electro-catalytic oxidation technology, ozone electro-catalytic oxidation technology, electrocatalysis one biological reaction technology, membrane filtration electro-catalytic oxidation technology.Various associating electrocatalysis water technologies all have certain synergy and advantage separately on organic wastewater with difficult degradation thereby is handled, can both reduce the running cost of catalytic oxidation simultaneously to a certain extent.But associating catalytic oxidation water technology can not fundamentally solve the common problem that current efficiency is low, faced by this electrocatalysis water technology of mass transfer limit.
The utility model content
The purpose of this utility model is for solving the problems of the technologies described above, a kind of organic waste-water treating apparatus being provided.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs:
Compound organic wastewater treating system, it comprises first reaction zone and second reaction zone, described second reaction zone is arranged at the top of described first reaction zone, described first reaction zone is provided with water inlet pipe, ozone inlet pipe, mud discharging mouth and compressed air inlet pipe, and the pipeline exit of described compressed air inlet pipe is provided with the ultrasonic pulse head; Described second reaction zone, one side is provided with anode, and opposite side is provided with negative electrode, also is provided with iron carbon filler district between described anode and the negative electrode, and described second reaction zone also is provided with water outlet, and this water outlet is arranged on respect to the other end that water inlet pipe one end is set.
In the utility model technique scheme, not only be provided with the ozone inlet pipe in first reaction zone and also be provided with the compressed air inlet pipe that has the ultrasonic pulse head.The ultrasonic pulse head produces ultrasonic wave by pressurized air and ultrasonic wave is delivered in the organic waste water, produces cavatition at organic waste water.Cavatition is meant, when applying the ultrasonic wave of certain frequency and intensity in the liquid, can produce a large amount of micro-bubbles, and these micro-bubbles are contracted to a series of physicochemical change that cause in the process of collapse in its formation, vibration, growth.Cavitation bubble in the extremely short time and in minimum space, produces high temperature and high pressure when collapse, and association intensive shockwave, and this just provides a kind of new physical environment for the reaction that under general condition is difficult to realize.Under this environment, feed ozone again, just can strengthen the oxidation capacity of ozone effectively.Ultrasonic wave combines with ozonation technology ozone is fully disperseed and dissolving, in progressive simultaneously its oxidation capacity of the dosage that reduces ozone, is used for strengthening the decomposition of ozone by means of the materialization of ultrasonic cavitation effect and generation thereof, produces a large amount of free radicals; Pollutants in waste water also can directly be decomposed in the High Temperature High Pressure " ozone cavitating bubble " of ultrasonic generation.Ultrasonic can being degraded to toxic organic compound than the little even nontoxic small molecules of original organism toxicity of while, degradation speed is fast, can not cause secondary pollution.Organic oxidation products mainly is H in the organic waste water
2O, CO
2And mineral acid, therefore through this processing, also make the PH of water body descend, this provides great convenience for further thoroughly handling of organic waste water.Iron-carbon micro-electrolysis is when the iron carbon granule is immersed 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 anode with the low iron of current potential, and the carbon that current potential is high is done negative electrode, and electrochemical reaction takes place in containing the aqueous solution of acidic electrolyte bath.The result of reaction is that iron is subjected to corrosion and becomes ferrous ion and enter solution.Under the condition of energising, ferrous ion is when further being oxidized to iron ion, and ferrous ion also is catalyzed into hydroxyl radical free radical, hydroxide ion and oxygen with ozone and water.Iron ion and hydroxide ion easily generate ironic hydroxide, and ironic hydroxide has very strong throwing out, and the ironic hydroxide that generates is more much better than than the throwing out of outer adding ironic hydroxide.What is more important, hydroxyl radical free radical are a kind of very free groups of strong oxidizing property that has, and it can attack the organic pollutant in the organic waste water, make it degraded, and speed of reaction are exceedingly fast.
Iron with carbon usually because of the potential difference that the forms sedimentation of uniting, this is a kind of side reaction, because the flocculation target of iron ion or ferrous ion is not a carbon, and iron ion or ferrous ion produce from the iron carbon filler, content of carbon is very high around it, and therefore this phenomenon can influence the treatment of Organic Wastewater effect of described oxidation unit greatly.We are desired be iron ion and ferrous ion enter in the organic waste water rather than with the carbon sedimentation of uniting.This oxidation unit is provided with extra electric field at two ends, iron carbon filler district, the existence of this electric field, not only solved the sedimentation of uniting of iron carbon, guaranteed that iron ion and ferrous ion successfully enter in the organic waste water, also strengthened the efficient of iron-carbon micro-electrolysis, and because the existence of this electric field, also the pH to organic waste water requires to decrease, the low pH environment (is 2～4 such as pH) of conventional iron-carbon micro-electrolysis reaction needed, usually need to add strong acid such as hydrochloric acid, reach required low pH reaction conditions, and react for the composite electrochemical of described oxidation unit, required pH is such as also can carrying out smoothly in 5～6 scopes, and this cost control and security to treatment of Organic Wastewater all has suitable effect.
Ultrasonic not only have enhancement to the oxidation of ozone, and iron-carbon micro-electrolysis is also had synergy.The ultrasonic mass transfer in liquid phase that can strengthen iron-carbon micro-electrolysis also can reduce the concentration polarization of iron-carbon micro-electrolysis.
Preferred as technique scheme, described first reaction zone and second reaction zone separate by screen.
Preferred as technique scheme, the outlet of described water inlet pipe and the outlet of compressed air inlet pipe integrate by hydraucone, described hydraucone is provided with down, the outlet of described ozone inlet pipe and described hydraucone are provided with in opposite directions, and described mud discharging mouth is arranged on the bottom of described first reaction zone.
Compressed-air actuated blasting, for iron carbon filler district, equal always in oxygen supply, also the iron carbon filler is being impacted simultaneously with the form of bubble, this is very beneficial for the flocculating settling of iron ion, ferrous ion on the one hand, also can impact on the other hand iron carbon, make iron carbon be difficult for uniting, keep reaction efficiently; And can also hinder hardening between the iron particle, the correlated response formula is as follows: O
2+ 4H
++ 4e → 2H
2O; O
2+ 2H
2O+4e → 4OH
-
The enforcement of the utility model technique scheme makes that also the organic waste water under the ultrasonication head-on contacts with ozone, and this has strengthened the contact surface of ozone and organic waste water, has also strengthened ozone and ultransonic contact surface.
Preferred as technique scheme, the volume ratio of first reaction zone and second reaction zone is 0.8～1.2 ︰ 1.
Preferred as technique scheme, described anodic material is titanium base PbO
2Electrode or titanium base SnO
2Electrode or titanium base Pt electrode.
Preferred as technique scheme, described iron carbon filler district account for the whole second reaction zone volume 90% and more than.
Preferred as technique scheme, described iron carbon filler district is made up of the iron carbon filler is fixing and separated a plurality of grids, and is full of the iron carbon filler in the described grid, and described grid is made by carbon fibre material.
In the utility model technique scheme, on the one hand, the iron carbon granule of oppositely charged is outside under the effect of electric field, has respectively to the trend of yin, yang electrode migration, so also alleviated the defective that the iron carbon granule is united each other, hardened on certain program; On the other hand, thus the iron in the iron carbon filler is separated from each other under the effect of electric field outside with carbon iron carbon microbattery was lost efficacy, and is provided with a plurality of grids, so that the iron carbon filler is fixed.And described grid is that carbon fibre material is made, and this carbon fibre material also can be used as a negative electrode of iron carbon microbattery.So ratio of increase iron charge that can be suitable in dress iron carbon filler.In addition, chlorion can be contained usually in the organic waste water, can produce chlorine after the chlorion electrolysis, and carbon fibre material free chlorine can be adsorbed.
In sum, the utlity model has following beneficial effect:
That the utility model combines is ultrasonic, the advantage of ozone and iron-carbon micro-electrolysis and catalytic oxidation, and makes them have collaborative mutually effect, has not only improved efficient, the treatment effect of sewage disposal even has also reduced cost of sewage disposal.
Description of drawings
Fig. 1 is the sectional view of the utility model oxidation unit;
Fig. 2 is the sectional view of the utility model oxidation unit;
Fig. 3 is a left view of the present utility model;
Fig. 4 is a right view of the present utility model.
Among the figure, 1-water inlet pipe, 2-hydraucone, 3-ozone inlet pipe, 4-mud discharging mouth, 5-ultrasonic pulse head, the 6-compressed air inlet pipe, 7-screen, 8-iron carbon filler district, the 9-rising pipe, 11-wastewater collection pond, 12-topping-up pump, the 13-strainer of ensuring public security, the 14-ultra-filtration equipment, 15-oxidation unit, 16-biochemical treatment apparatus.
Embodiment
This specific embodiment only is to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification sheets, but as long as all are subjected to the protection of patent law in claim scope of the present utility model.
Shown in Fig. 1-4, compound organic wastewater treating system, it comprises wastewater collection pond 11, topping-up pump 12, security personnel's strainer 13, ultra-filtration equipment 14, oxidation unit 15 and biochemical treatment apparatus 16.Described oxidation unit 15 is configured to by the cast iron of line with rubber, housing is of a size of 1150mm * 1150mm * 2000mm(length * wide * height), it comprises first reaction zone and second reaction zone, described second reaction zone is arranged at the top of described first reaction zone and separates by screen 7, described second reaction zone is provided with water outlet 9, described first reaction zone is provided with water inlet pipe 1 and mud discharging mouth 4, described second reaction zone, one side also is provided with anode, opposite side is provided with negative electrode, also is provided with iron carbon filler district 8 between described anode and the negative electrode; Described anode material is titanium base SnO
2Electrode; Described first reaction zone also is provided with ozone inlet pipe 3 and compressed air inlet pipe 6, and the pipeline exit of described compressed air inlet pipe 6 is provided with ultrasonic pulse 5.The outlet of described water inlet pipe 1 and the outlet of compressed air inlet pipe integrate by hydraucone 2, described hydraucone 2 is provided with down, the outlet of described ozone inlet pipe 3 and described loudspeaker are provided with for 2 mouthfuls in opposite directions, and described mud discharging mouth 4 is arranged on the bottom of described first reaction zone.The volume ratio of described first reaction zone and second reaction zone is 4 ︰ 5.Described iron carbon filler district 8 accounts for 90% of the whole second reaction zone volume.Described iron carbon filler district 8 is made up of the iron carbon filler is fixing and separated a plurality of grids, and is full of the iron carbon filler in the described grid, and described grid is made by carbon fibre material.
Described oxidation unit applies a pulsed voltage in use at the electrode two ends.Pulse electrolysis just utilized its flocculation function treatment dyeing waste water in the past, as floating colourity and the COD that goes up method to dyeing waste water of high-voltage pulse electrocoagulation
CrGood treatment effect is all arranged, and (300～4OO can reduce total current intensity significantly and shorten electrolysis time v) down, and pulse action can make polar board surface reduce settling, keeps higher current efficiency at higher bath voltage.Described oxidation unit applies a pulsed voltage at the electrode two ends in use, and current efficiency will be improved by a larger margin.
The Walocel MT 20.000PV processing wastewater, each physical and chemical index of this waste water is as follows:
| COD Cr(mg/L) | Muriate (mg/L) | pH | Temperature (℃) |
| 26000 | 32000 | 10～14 | 80 |
As follows with the utility model: that above-mentioned waste water is handled by ultra-filtration equipment earlier to above-mentioned wastewater treatment, through after the uf processing, its concentrated solution can turn back to the organic materials recycle section in preceding road, carry out circular treatment, ultrafiltration simultaneously or micro-filtration also can be held back the partial organic substances in the organic waste water, for following compound advanced oxidation process is together laid a solid foundation;
To feed oxidation unit through the waste water of uf processing then, and handle through the oxidative degradation of first reaction zone and second reaction zone respectively at organic waste water described in the described oxidation unit, the processing parameter of concrete control is as follows: current density is controlled to be 10～20mA/cm
2, organic waste water is controlled to be 30 minutes in the residence time of first reaction zone, and organic waste water is controlled to be 30～45 minutes in the residence time of second reaction zone; The iron carbon filler is that particle diameter forms in the melting behind thorough mixing of the carbon granule below the 1mm at iron particle below the 1mm and particle diameter, and its specific surface area is 1.0～1.2m
2/ g, density is 1100～1300kg/m
3, iron-holder 〉=70%; The ultransonic frequency that described ultrasonic pulse head is sent is between 20kHz～100kHz; The ozone input of described ozone inlet pipe is controlled to be and feeds 20 liters of ozone in every liter of organic waste water.
Through above-mentioned processing, the physical and chemical index of this organic waste water is as follows:
COD
CrContent is below 1000 mg/L, and pH is 6～7, COD
CrClearance is more than 95%.
To pass through the processing of biochemical treatment apparatus through the waste water that combined oxidation is handled at last, aerobic treatment process is selected in described biochemical treatment for use, and the bacterium of using in this aerobic treatment process is the salt tolerant bacterium; Nitric wastewater enters in the Loss-on-drying gas pond and handles, reflux ratio R=2, and keeping the pH value in the Loss-on-drying gas pond is 7.2, DO is 3mg/L, and composite flora concentration is 4g/L in the mixed solution, 20 ℃ of temperature, water inlet TKN300mg/L, C/N than 4, N/P is than 6, processing is 12 hours in Loss-on-drying gas pond.
Through after the above-mentioned processing, COD
CrContent can be controlled in below the 300mg/L.
Claims (7)
1. compound organic wastewater treating system, it comprises ultra-filtration equipment, oxidation unit and the biochemical treatment apparatus that is communicated with successively, it is characterized in that described oxidation unit comprises first reaction zone and second reaction zone, described second reaction zone is arranged at the top of described first reaction zone, described first reaction zone is provided with water inlet pipe (1), ozone inlet pipe (3), mud discharging mouth (4) and compressed air inlet pipe (6), and the pipeline exit of described compressed air inlet pipe (6) is provided with ultrasonic pulse head (5); Described second reaction zone, one side is provided with anode, opposite side is provided with negative electrode, also be provided with iron carbon filler district (8) between described anode and the negative electrode, described second reaction zone also is provided with water outlet (9), and this water outlet (9) is arranged on respect to the other end that water inlet pipe (1) one end is set.
2. a kind of compound organic wastewater treating system according to claim 1 is characterized in that described first reaction zone and second reaction zone separate by screen (7).
3. a kind of compound organic wastewater treating system according to claim 1, it is characterized in that the outlet of described water inlet pipe (1) and the outlet of compressed air inlet pipe (6) integrate by hydraucone (2), described hydraucone (2) is provided with down, the outlet of described ozone inlet pipe (3) and described hydraucone (2) are provided with in opposite directions, and described mud discharging mouth (4) is arranged on the bottom of described first reaction zone.
4. a kind of compound organic wastewater treating system according to claim 1, the volume ratio that it is characterized in that described first reaction zone and second reaction zone are 0.8～1.2 ︰ 1.
5. a kind of compound organic wastewater treating system according to claim 1 is characterized in that described anode is titanium base PbO
2Electrode or titanium base SnO
2Electrode or titanium base Pt electrode.
6. a kind of compound organic wastewater treating system according to claim 1 is characterized in that described iron carbon filler district (8) accounts for more than 90% of the whole second reaction zone volume.
7. a kind of compound organic wastewater treating system according to claim 1, it is characterized in that described iron carbon filler district (8) is made up of the iron carbon filler is fixing and separated a plurality of grids, and be full of the iron carbon filler in the described grid, described grid is made by carbon fibre material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201506296U CN202063803U (en) | 2011-05-12 | 2011-05-12 | Combined organic wastewater treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201506296U CN202063803U (en) | 2011-05-12 | 2011-05-12 | Combined organic wastewater treatment system |
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|---|---|
| CN202063803U true CN202063803U (en) | 2011-12-07 |
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ID=45057672
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633320A (en) * | 2012-03-21 | 2012-08-15 | 余辉 | Method for treating iron-carbon microelectrode and sewage |
| CN105174632A (en) * | 2015-09-26 | 2015-12-23 | 哈尔滨工程大学 | Device and method for treating ship sewage through ultrasonic strengthening internal electrolysis coupling biological method |
| CN108002650A (en) * | 2017-12-08 | 2018-05-08 | 环境保护部华南环境科学研究所 | The device and method of ultrasonic ozone-light electrolysis coupling degraded industrial organic waste water |
| CN108033520A (en) * | 2017-12-11 | 2018-05-15 | 江苏森博环保科技发展有限公司 | A kind of rail carbon micro-electrolytic processes of logical ozone for wastewater treatment |
| CN115385458A (en) * | 2022-09-20 | 2022-11-25 | 常州大学 | Method for degrading organic matters in wastewater by ultrasonic electrochemical coupling white rot fungi |
-
2011
- 2011-05-12 CN CN2011201506296U patent/CN202063803U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633320A (en) * | 2012-03-21 | 2012-08-15 | 余辉 | Method for treating iron-carbon microelectrode and sewage |
| CN102633320B (en) * | 2012-03-21 | 2014-03-19 | 余辉 | Method for treating iron-carbon microelectrode and sewage |
| CN105174632A (en) * | 2015-09-26 | 2015-12-23 | 哈尔滨工程大学 | Device and method for treating ship sewage through ultrasonic strengthening internal electrolysis coupling biological method |
| CN108002650A (en) * | 2017-12-08 | 2018-05-08 | 环境保护部华南环境科学研究所 | The device and method of ultrasonic ozone-light electrolysis coupling degraded industrial organic waste water |
| CN108033520A (en) * | 2017-12-11 | 2018-05-15 | 江苏森博环保科技发展有限公司 | A kind of rail carbon micro-electrolytic processes of logical ozone for wastewater treatment |
| CN115385458A (en) * | 2022-09-20 | 2022-11-25 | 常州大学 | Method for degrading organic matters in wastewater by ultrasonic electrochemical coupling white rot fungi |
| CN115385458B (en) * | 2022-09-20 | 2024-04-05 | 常州大学 | Method for degrading organic matters in wastewater by coupling ultrasonic electrochemistry with white rot fungi |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |