CN102659223A - Handle organic waste water's of difficult degradation photoelectricity/electricity Fenton device - Google Patents
Handle organic waste water's of difficult degradation photoelectricity/electricity Fenton device Download PDFInfo
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Abstract
本发明涉及一种处理难降解有机废水的光/电Fenton装置，包括电解槽，为一顶端敞口的反应槽，是光/电Fenton装置的主体结构，反应器的阴阳极分别与直流稳压电源的正负极相连，分置于反应槽两端；反应器阴极采用ACF电极，将活性炭纤维布裹在金属铁板上，反应槽置于磁力搅拌器上；曝气机不断向阴极输入空气。紫外灯管插入反应槽中央；铁棒也插入反应槽中置于紫外灯管与阳极之间。本发明由于采用上述结构，本发明装置结构简单，操作方便，运行可靠，针对有机废水的水质状况，调节装置的电流、基板间距、紫外灯管功率三个参数使出水水质达到生化处理要求。
The invention relates to a photo/electrical Fenton device for treating refractory organic waste water, comprising an electrolytic cell, which is a reaction tank with an open top, and is the main structure of the photo/electrical Fenton device. The positive and negative poles of the power supply are connected and placed at both ends of the reaction tank; the cathode of the reactor uses ACF electrodes, and the activated carbon fiber cloth is wrapped on a metal iron plate, and the reaction tank is placed on a magnetic stirrer; the aerator continuously inputs air to the cathode . The ultraviolet lamp tube is inserted into the center of the reaction tank; the iron rod is also inserted into the reaction tank and placed between the ultraviolet lamp tube and the anode. Due to the adoption of the above-mentioned structure, the present invention has simple structure, convenient operation, and reliable operation. For the water quality of organic wastewater, the three parameters of the device's current, substrate distance, and ultraviolet lamp power are adjusted to make the effluent water quality meet the requirements of biochemical treatment.
Description
Technical field
The present invention relates to a kind of treatment unit of organic wastewater with difficult degradation thereby, relate in particular to a kind of light/Fenton treatment unit of organic wastewater with difficult degradation thereby.
Background technology
In recent years; Along with China's rapid economic development; Industries such as weaving, petrochemical complex, plastics, synthon, papermaking, coking, printing and dyeing, pharmacy are also developed rapidly; Following various corresponding the increasing of waste water that contain the organic pollutant of a large amount of difficult degradations, major part all contains the hazardous and noxious substances of difficult degradation in these trade effluents, its BOD
5/ COD
Cr<0.3 this organic pollutant almost can not be degraded by microorganisms after getting into water body, or the degraded required time is longer, the harm that environment is caused is difficult to control.
The organic wastewater with difficult degradation thereby intractability is big, cost is high, is difficult to reach national specified discharge standard.Because can these refractory organic industrial sewages be handled effectively; It is the bottleneck that can these industry of restriction develop in a healthy way; Also be the key factor that influences the water body environment quality, the treatment process of organic wastewater with difficult degradation thereby is varied, finally usually need pass through biological treatment; But because its biodegradability is lower, so carry out to carry out pre-treatment to improve its biodegradability before the routine biological treatment.The method that improves the organic wastewater with difficult degradation thereby biodegradability is a lot, can be summarized as physico-chemical processes, chemical method, biological process etc. on the whole.
Treatment process commonly used has: absorption method, chemical flocculation, advanced oxidation processes etc.Wherein absorption method is because loading capacity is limited; And often energy consumption is very big for the regenerative process after the absorption; Discharging after discarded has caused secondary pollution, and the Persistent organic pollutants of the relatively more suitable lower concentration of absorption method, has limited its application in used water difficult to degradate is handled.Chemical flocculation will produce a large amount of solid pollutants, and the intractability of these solid pollutants is big, processing cost is high, has reduced economic benefit.Advanced oxidation processes can make the macromole organic pollutant of difficult degradation in the waste water be degraded to low toxicity or nontoxic small molecules, even can directly be degraded to CO
2And H
2O
2, reach innoxious purpose, the non-secondary pollution problem.What application was many in the present advanced oxidation is the Fenton method.
Existing Fenton treatment unit mainly is the simple process device of monotechnics (light, electricity or Fenton), and this type device is generally handled the energy consumption height.And there is the unfavorable problem of treatment effect in existing binary combination treatment unit (Fenton or light Fenton device), and light/Fenton associated treatment device rarely has report.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of light/Fenton device of handling organic wastewater with difficult degradation thereby; It simple in structure; Easy to operate; Reliable, to the water quality condition of organic wastewater with difficult degradation thereby, the electric current of setting device, polar plate spacing, three parameters of ultraviolet lamp tube power make effluent quality reach the biochemical treatment requirement.
The technical scheme that the present invention adopts is:
A kind of light/Fenton device of handling organic wastewater with difficult degradation thereby is made up of magnetic stirring apparatus 1, negative electrode 2, electrolyzer 3, aeration tube 4, aerator 5, fluorescent tube barretter 6, direct current constant current constant voltage power supply 7, ultraviolet lamp tube 8, the ferroelectric utmost point 9, anode 10 and baffle plate 11; Wherein electrolyzer 3 is the open reactive tank in top, is photoelectricity Fenton device main body structure, places on the magnetic stirring apparatus 1; The be placed in both sides of electrolyzer 3 of anode 10 and negative electrode 2, the positive and negative electrode with direct current constant current constant voltage power supply 7 links to each other respectively; Two aeration tubes 4 lay respectively at the both sides of negative electrode 2, and are connected with aerator 5, negative electrode input air in electrolyzer; Ultraviolet lamp tube 8 inserts electrolyzer 3 central authorities, links to each other with fluorescent tube barretter 6; The ferroelectric utmost point 9 inserts in the electrolyzer 3 and places between ultraviolet lamp tube 8 and the anode 10; Baffle plate 11 is stamped on electrolyzer 3 tops.
The power of preferred described ultraviolet lamp tube 8 is 4～12w.Preferred described anode 10 is the Ti/Pt electrode; Negative electrode 2 is the ACF electrode, and it is to be rolled on the monolithic metal by active carbon fiber fabrics; The polar plate spacing of preferred anodes 10 and negative electrode 2 is 5～10cm.The strength of current of preferred direct current constant current constant voltage power supply 7 is 0.5～2.5A; The rotating speed of preferred magnetic stirring apparatus 1 is 200～1000r/min; The aeration rate of preferred aerator 5 is 1.5～3.5L/min; The preferred described ferroelectric utmost point 9 is an iron staff, and its diameter is preferably 3～8mm.
A kind of technology of utilizing apparatus processes waste water recited above, basic step is following: at first get a certain amount of organic wastewater with difficult degradation thereby, inject electrolyzer 3 behind the pH with acid solution adjusting waste water, add a certain amount of Presfersul powder.Open ultraviolet lamp tube and aerator, open magnetic stirring apparatus again, connect direct current constant current constant voltage power supply, the beginning DeR.
Acid solution is generally sulfuric acid, hydrochloric acid or nitric acid, and its mass percentage concentration concentration is 30%～40%.The pH value is adjusted to 2～6; Preferred Presfersul powder dosage is 2.0 ‰～10.0 ‰ (accounting for the mass percentage concentration of waste water).Preferred its reaction degradation time is 90～150min.
Beneficial effect:
Adopt said structure of the present invention; The oxygen that aerator produces at negative electrode; On negative electrode, generate hydrogen peroxide through electrolysis; Hydrogen peroxide generates hydroxyl radical free radical under the katalysis of ferrous ion, the Persistent organic pollutants in hydroxyl radical free radical and the waste water react, thereby reaches the purpose of degradable organic pollutant.Ferrous ion can provide through iron staff, has avoided ferrous ion to lack or adds excessive situation.
What the present invention adopted is that Ti/Pt electrode kind electrode has the higher point chemicalstability, oxygen evolution reaction is had goodish inhibition, helps the generation of OH, and long service life, and consume is more serious in other electrode such as iron/carbon dioxide process carbon electrode use; Ultraviolet lamp tube places reactive tank central authorities, fully contacts organic wastewater with difficult degradation thereby, has improved the usability of device.
Description of drawings
Fig. 1 is light/Fenton schematic representation of apparatus, wherein: 1-magnetic stirring apparatus, 2-negative electrode, 3-electrolyzer, 4-aeration tube, 5-aerator, 6-fluorescent tube barretter, 7-direct current constant current constant voltage power supply, 8-ultraviolet lamp tube, the 9-ferroelectric utmost point 10-anode 11-baffle plate.
Embodiment
Embodiment 1:
A kind of light/Fenton device of handling organic wastewater with difficult degradation thereby; Its synoptic diagram is as shown in Figure 1, comprising: magnetic stirring apparatus 1, negative electrode 2, electrolyzer 3, aeration tube 4, aerator 5, fluorescent tube barretter 6, direct current constant current constant voltage power supply 7, ultraviolet lamp tube 8, the ferroelectric utmost point 9, anode 10, baffle plate 11.Wherein electrolyzer is the open reactive tank in a top, is the thematic structure of photoelectricity Fenton device, and electrolyzer places on the magnetic stirring apparatus.
The anode of device adopts the Ti/Pt electrode; Negative electrode adopts the ACF electrode, and active carbon fiber fabrics is rolled on the monolithic metal, and the anode and cathode of reactor drum links to each other with the positive and negative electrode of direct current constant current constant voltage power supply respectively; The both sides of electrolyzer are placed in; The specific surface area of NACF is big, and more oxygen generates hydrogen peroxide in the solution on negative electrode, the length of battery lead plate and wide be with high decision according to electrolyzer wide.
Two aeration tubes lay respectively at the both sides of negative electrode, and are connected with aerator, and aerator is the negative electrode input air in electrolyzer, remedy the deficiency of oxygen in the waste water, also can stir waste water simultaneously, make the hydroxyl radical free radical of generation be evenly distributed on electrolyzer inside;
Ultraviolet lamp tube inserts electrolyzer central authorities, fully contacts with waste water in the reactive tank, participates in the Z 150PH in the degrading waste water;
Ferroelectric very iron staff places between ultraviolet lamp tube and the anode in the insertion electrolyzer, and ferrous ion is provided, and it highly exceeds electrolyzer and gets final product.
The baffle plate of device is to cover on the electrolyzer according to the position punching that other devices are provided with, and its material can be transparent PVC hardboard, fiber board or synthetic glass.
Its working process is following: a certain amount of organic wastewater with difficult degradation thereby is got in (1), and the pH that uses acid solution to regulate waste water is that electrolyzer is injected in 2～6 backs, adds the Presfersul powder of 2.0 ‰～10.0 ‰ (accounting for the mass percentage concentration of waste water).(2) open ultraviolet lamp tube and magnetic stirring apparatus, the beginning DeR.(3) open aerator, open direct current constant current constant voltage power supply again, the beginning electrolytic reaction.
Embodiment 2:
The Z 150PH simulation desized wastewater of configuration 3000mg/L; Getting 750mL waste water use mass concentration is that 40% dilute sulphuric acid adjusting pH value is 6; Adopt this photoelectricity Fenton device after adding 10.0 ‰ (accounting for the mass percentage concentration of Z 150PH simulation desized wastewater) Presfersul powder; Electrolyzer is of a size of 200mm * 110mm * 120mm, and anode is the Ti/Pt electrode, is of a size of 60mm * 110mm * 0.5mm.Negative electrode is an ACF electrodes use viscose-based active carbon fiber, and specific surface area is 1300m
2/ g is cut into its size the same with anode, is wrapped on the inertia Ti electrode, and uses the aerator aeration at negative electrode.Electrode is through the power supply of single flow constant current constant voltage power supply, and the adjusting constant-voltage power supply is 2.5A.Open magnetic stirring apparatus, its rotating speed is 1000r/min.Near negative electrode, insert ultraviolet lamp tube, the power of ultraviolet lamp tube is the two ends that 12w, cathode-anode plate are placed in reactor drum respectively, and the distance between pole plate transfers to 5cm.It is 3.5L/min that the aerator aeration rate is set.The insertion diameter is after the iron staff of 8mm carries out among the photoelectricity Fenton reaction 150min, the COD of Z 150PH desized wastewater
CrClearance reaches more than 90%.
Embodiment 3:
The polyethers waste water B/C of Shanghai petro-chemical corporation is low, and the sewage biochemical is relatively poor, is 1500mL at wastewater flow rate; Electrolyzer is of a size of 400mm * 220mm * 240mm; Anode and cathode is of a size of 120mm * 110mm * 0.5mm, and negative electrode is an ACF electrodes use viscose-based active carbon fiber, and specific surface area is 1400m
2/ g, polar plate spacing are 8cm, and constant-voltage power supply is 1.5A; Add 8.0 ‰ (accounting for the mass percentage concentration of polyethers waste water) Presfersul powder, using mass concentration is that 30% hydrochloric acid adjusting pH is 4, and the magnetic stirring apparatus rotating speed is 800r/min; Ultraviolet lamp tube power 8w, aerator aeration rate are 2.5L/min, and inserting diameter is under the experiment condition of 5mm iron staff; Carry out photoelectricity Fenton reaction 120min, COD in the glyphosate waste water
CrClearance reaches 65.5%.
Embodiment 4:
The glyphosate mother solution salts contg of certain agricultural chemicals enterprise reaches about 15%, and the pH of waste water is 750mL at wastewater flow rate about 11; Electrolyzer is of a size of 200mm * 110mm * 120mm, and anode and cathode is of a size of 60mm * 110mm * 0.5mm, and polar plate spacing is 7.5cm; Constant-voltage power supply is 0.5A, adds 5.0 ‰ (accounting for the mass percentage concentration of glyphosate mother solution waste water) Presfersul powder, and using mass concentration is that 30% rare nitric acid adjusting pH is 2; The magnetic stirring apparatus rotating speed is 200r/min, and ultraviolet lamp tube power 4w, aerator aeration rate are 2.0L/min; Inserting diameter is under the experiment condition of 6mm iron staff, carries out photoelectricity Fenton reaction 90min, COD in the glyphosate waste water
CrClearance reaches 58.8%.
Embodiment 5:
Certain group's saliferous strongly-acid unsaturated polyester waste water, original COD
CrAbout 25000, be 1500mL at wastewater flow rate, electrolyzer is of a size of 400mm * 220mm * 240mm; Anode and cathode is of a size of 120mm * 110mm * 0.5mm, and polar plate spacing is 10cm, and constant-voltage power supply is 2.0A; Add 2.0 ‰ (accounting for the mass percentage concentration of saliferous strongly-acid unsaturated polyester waste water) Presfersul, initial pH is 3.5, and the magnetic stirring apparatus rotating speed is 600r/min; Ultraviolet lamp tube power 12w; The aerator aeration rate is that 1.5L/min insertion diameter is under the experiment condition of 3mm iron staff, carries out photoelectricity Fenton reaction 120min, COD in the glyphosate waste water
CrClearance reaches 41.2%.
The foregoing description is five examples of implementation of the present invention; But embodiment of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification that invention essence of the present invention made or substitutes, and all should be the displacement of equivalence, is included within protection scope of the present invention.
Claims (7)
1. light/Fenton device of handling organic wastewater with difficult degradation thereby is made up of magnetic stirring apparatus (1), negative electrode (2), electrolyzer (3), aeration tube (4), aerator (5), fluorescent tube barretter (6), direct current constant current constant voltage power supply (7), ultraviolet lamp tube (8), the ferroelectric utmost point (9), anode (10) and baffle plate (11); Wherein electrolyzer (3) is the open reactive tank in top, places on the magnetic stirring apparatus (1); The be placed in both sides of electrolyzer (3) of anode (10) and negative electrode (2), the positive and negative electrode with direct current constant current constant voltage power supply (7) links to each other respectively; Two aeration tubes (4) lay respectively at the both sides of negative electrode (2), and are connected with aerator (5); Ultraviolet lamp tube (8) inserts electrolyzer (3) central authorities, links to each other with fluorescent tube barretter (6); The ferroelectric utmost point (9) inserts in the electrolyzer (3) and places between ultraviolet lamp tube (8) and the anode (10); Baffle plate (11) is stamped on electrolyzer (3) top.
2. light according to claim 1/Fenton treatment unit, the power that it is characterized in that described ultraviolet lamp tube (8) is 4～12w.
3. light according to claim 1/Fenton device is characterized in that described anode (10) is the Ti/Pt electrode; Negative electrode (2) is the ACF electrode; The polar plate spacing of anode (10) and negative electrode (2) is 5～10cm.
4. light according to claim 1/Fenton device, its characteristic is 0.5～2.5A in the strength of current of direct current constant current constant voltage power supply (7).
5. light according to claim 1/Fenton device, its characteristic is 200～1000r/min at the rotating speed of described magnetic stirring apparatus.
6. light according to claim 1/Fenton device, its characteristic is 1.5～3.5L/min at the aeration rate of described aerator (5).
7. light according to claim 1/Fenton device, its characteristic is an iron staff at the described ferroelectric utmost point (9), its diameter is 3～8mm.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482729A (en) * | 2013-08-19 | 2014-01-01 | 何理 | Device and method for treating nitrobenzene pollution of underground water |
| CN103922524A (en) * | 2014-05-14 | 2014-07-16 | 山东盛阳集团有限公司 | Advanced treatment method for coking wastewater |
| CN105253950A (en) * | 2015-11-13 | 2016-01-20 | 中国科学院宁波材料技术与工程研究所 | Method and equipment for degrading organic waste water through UV-light concerted electro-Fenton system |
| CN105329989A (en) * | 2015-11-01 | 2016-02-17 | 华南理工大学 | Electric flocculation method for pretreating high-concentration polluted wastewater of glyphosate |
| CN105417638A (en) * | 2015-11-13 | 2016-03-23 | 中国科学院宁波材料技术与工程研究所 | Heterogeneous electric Fenton system and preparation and application thereof |
| CN105502590A (en) * | 2015-12-07 | 2016-04-20 | 南京大学 | Rotary plate type activated carbon fiber cathode electro-Fenton sewage treatment device |
| CN107046135A (en) * | 2017-01-20 | 2017-08-15 | 常州大学 | Improve the method that microbiological fuel cell handles Polyester wastewater electricity production |
| CN108249545A (en) * | 2018-03-09 | 2018-07-06 | 南京大学 | A kind of photoelectricity-Fenton azo dye wastewaters treatment reactor and application method |
| CN108545812A (en) * | 2018-04-10 | 2018-09-18 | 佛山市万善环保科技有限公司 | Based on electromagnetic field couples photoelectricity Fenton organic waste-water treating apparatus |
| CN110642336A (en) * | 2019-09-30 | 2020-01-03 | 王偲偲 | Electrolytic bath |
| CN110759578A (en) * | 2019-11-04 | 2020-02-07 | 神美科技有限公司 | Treatment method of coal chemical industry washing wastewater |
| CN111484158A (en) * | 2020-04-03 | 2020-08-04 | 镇江江南化工有限公司 | Pretreatment method of glyphosate production wastewater |
| CN111924940A (en) * | 2020-08-07 | 2020-11-13 | 河北工业大学 | Induction electrode and method for degrading pollutants in electromagnetic coupling field |
| CN113772776A (en) * | 2021-08-26 | 2021-12-10 | 厦门大学 | Method for treating glyphosate wastewater |
| CN114538681A (en) * | 2022-03-01 | 2022-05-27 | 北京神舟茂华环保科技有限公司 | Wastewater treatment reactor based on photoelectric Fenton oxidation method and treatment method thereof |
| CN116282682A (en) * | 2023-03-01 | 2023-06-23 | 佛山市南海区苏科大环境研究院 | A sewage disinfection treatment system capable of energy recovery and utilization |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482729A (en) * | 2013-08-19 | 2014-01-01 | 何理 | Device and method for treating nitrobenzene pollution of underground water |
| CN103922524A (en) * | 2014-05-14 | 2014-07-16 | 山东盛阳集团有限公司 | Advanced treatment method for coking wastewater |
| CN103922524B (en) * | 2014-05-14 | 2015-03-11 | 山东盛阳集团有限公司 | Advanced treatment method for coking wastewater |
| CN105329989A (en) * | 2015-11-01 | 2016-02-17 | 华南理工大学 | Electric flocculation method for pretreating high-concentration polluted wastewater of glyphosate |
| CN105253950A (en) * | 2015-11-13 | 2016-01-20 | 中国科学院宁波材料技术与工程研究所 | Method and equipment for degrading organic waste water through UV-light concerted electro-Fenton system |
| CN105417638A (en) * | 2015-11-13 | 2016-03-23 | 中国科学院宁波材料技术与工程研究所 | Heterogeneous electric Fenton system and preparation and application thereof |
| CN105502590A (en) * | 2015-12-07 | 2016-04-20 | 南京大学 | Rotary plate type activated carbon fiber cathode electro-Fenton sewage treatment device |
| CN107046135A (en) * | 2017-01-20 | 2017-08-15 | 常州大学 | Improve the method that microbiological fuel cell handles Polyester wastewater electricity production |
| CN108249545B (en) * | 2018-03-09 | 2023-12-26 | 南京大学 | A photoelectric-Fenton azo dye wastewater treatment reactor and its use method |
| CN108249545A (en) * | 2018-03-09 | 2018-07-06 | 南京大学 | A kind of photoelectricity-Fenton azo dye wastewaters treatment reactor and application method |
| CN108545812A (en) * | 2018-04-10 | 2018-09-18 | 佛山市万善环保科技有限公司 | Based on electromagnetic field couples photoelectricity Fenton organic waste-water treating apparatus |
| CN110642336A (en) * | 2019-09-30 | 2020-01-03 | 王偲偲 | Electrolytic bath |
| CN110759578B (en) * | 2019-11-04 | 2022-05-03 | 神美科技有限公司 | Treatment method of coal chemical industry washing wastewater |
| CN110759578A (en) * | 2019-11-04 | 2020-02-07 | 神美科技有限公司 | Treatment method of coal chemical industry washing wastewater |
| CN111484158A (en) * | 2020-04-03 | 2020-08-04 | 镇江江南化工有限公司 | Pretreatment method of glyphosate production wastewater |
| CN111924940A (en) * | 2020-08-07 | 2020-11-13 | 河北工业大学 | Induction electrode and method for degrading pollutants in electromagnetic coupling field |
| CN111924940B (en) * | 2020-08-07 | 2021-03-05 | 河北工业大学 | A sensing electrode and method for degrading pollutants in an electro-magnetic coupling field |
| CN113772776A (en) * | 2021-08-26 | 2021-12-10 | 厦门大学 | Method for treating glyphosate wastewater |
| CN114538681A (en) * | 2022-03-01 | 2022-05-27 | 北京神舟茂华环保科技有限公司 | Wastewater treatment reactor based on photoelectric Fenton oxidation method and treatment method thereof |
| CN116282682A (en) * | 2023-03-01 | 2023-06-23 | 佛山市南海区苏科大环境研究院 | A sewage disinfection treatment system capable of energy recovery and utilization |
| CN116332400A (en) * | 2023-03-01 | 2023-06-27 | 苏州科技大学 | A Wastewater Disinfection Treatment Process That Can Realize Energy Recovery and Utilization |
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Application publication date: 20120912 |