CN103936208A - Efficient micro-electrolysis multiphase flow air flotation reactor - Google Patents
Efficient micro-electrolysis multiphase flow air flotation reactor Download PDFInfo
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- CN103936208A CN103936208A CN201410142971.XA CN201410142971A CN103936208A CN 103936208 A CN103936208 A CN 103936208A CN 201410142971 A CN201410142971 A CN 201410142971A CN 103936208 A CN103936208 A CN 103936208A
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Abstract
The invention aims at providing an efficient micro-electrolysis multiphase flow air flotation reactor used for wastewater pretreatment in the industries such as chemical engineering and pharmacy. The efficient micro-electrolysis multiphase flow air flotation reactor comprises a multiphase flow dissolved air feed pump, a reactor main body consisting of a water distribution area, a micro-electrolysis packing area, an air flotation separation area and a clear water area, a water distribution device arranged in the water distribution area, a pipeline for connecting the multiphase flow dissolved air feed pump with the water distribution device, a perforated clapboard arranged between the water distribution area and the micro-electrolysis packing area, micro-electrolysis packing arranged in the micro-electrolysis packing area, an isolation screen arranged between the micro-electrolysis packing area and the air flotation separation area, a slag discharging groove formed at the upper part of the air flotation separation area, a water outlet pipe arranged at the lower part of the clear water area, and a water outlet control valve connected with the water outlet pipe.
Description
Technical field
The invention belongs to field of waste water treatment, particularly a kind of efficient micro-electrolysis polyphasic flow air supporting reactor for the poor Wastewater Pretreatment of the biodegradability such as chemical industry, pharmaceutical industry.
Background technology
Chemical industry, it is high that the waste water such as pharmacy have pollutant concentration conventionally, complicated component, waste water has certain toxicity, contain the feature such as component that multiple-microorganism is difficult to degraded, therefore, adopt not only difficulty up to standard of single treatment process, and investment and running cost can be very high, waste water must be carried out to the shunting of removing contamination according to concentration height, collect respectively and select physicochemical techniques targetedly to carry out pre-treatment to high-concentration waste water, reduce its toxicity and concentration and improve its biodegradability, then mix with low concentration wastewater and carry out biochemical treatment, after biochemical treatment, water outlet can reach takes over or emission standard.Conventionally adopt chemical method to carry out pre-treatment for high density, the waste water that poisonous, biochemical is poor.The effect of electroplating effluent recycling and using is the organic concentration that reduces the waste water that enters biochemical system; Decompose the hardly-biodegradable materials such as macromole aromatic hydrocarbon, improve biodegradability; Decomposition, modification hazardous and noxious substances, reduce its concentration to the biochemical scope allowing.Waste water method of chemical treatment, compared with biological treatment, can be removed more pollutent more rapidly, effectively, can be used as the pre-treatment measure before biological treatment, also can be used as the tertiary treatment measure after biological treatment.This method also has equipment and easily operates, easily realizes and automatically detect and control, be convenient to the advantages such as recycling.Method of chemical treatment can be removed multiple severe toxicity and high malicious pollutent in waste water effectively.Chemical method is to utilize the work of chemical reaction in order to remove organism, the inorganics impurity in water.Mainly contain chemical coagulation process, chemical oxidization method, electrochemical oxidation process etc.Chemical coagulation process effective object is mainly small suspended substance and colloidalmaterial in water, and the cohesion and the throwing out that produce by adding chemical agent make elimination of colloid stability form precipitation or scum silica frost and remove.Coagulation Method not only can be removed the tiny suspended particle that the particle diameter in waste water is 1O～10mm, and can also remove colourity, microorganism and organism etc., the method is subject to the variable effects such as pH value, water temperature, water quality, the water yield large, and the organic and inorganic material clearance good to some solubility is low; Chemical oxidization method normally carries out the method for oxidation removal to the organic pollutant in wastewater from chemical industry with oxygenant.Waste water, through chemistry redox, can make organic and inorganic toxic substance contained in waste water be transformed into material nontoxic or that toxicity is less, thereby reach the object of purification of waste water.Conventional have atmospheric oxidation, oxychlorination, ozonization method, micro-electrolysis method and a Fenton oxidation method.Atmospheric oxidation because of its oxidation capacity a little less than, be mainly used in the wastewater treatment containing the stronger material of reductibility, Cl is the oxygenant of common use, is mainly used in containing in phenol, processing containing organic waste waters such as cyanogen, uses ozonize waste water, oxidation capacity is strong, non-secondary pollution.Ozonation, oxychlorination method, its water treatment is effective, but energy consumption is large, and cost is high, is not suitable for processing wastewater of chemical industry with high concentration.
Micro electrolysis tech is a kind of ideal technology of processing at present high concentrated organic wastewater, claims again internal electrolysis.It is in cold situation, utilizes the iron carbon filler self being filled in waste water to produce 1.2V potential difference waste water is carried out to electrolysis treatment, to reach the object of degradable organic pollutant.
The reaction of iron carbon galvanic cell:
Anode: Fe-2e → Fe
2+e(Fe/Fe
2+)=0.44V
Negative electrode: 2H
++ 2e → H
2e (H
+/ H
2)=0.00V
In the time that aerobic exists, cathodic reaction is as follows:
O
2 + 4H
+ + 4e → 2H
2O E (O
2)=1.23V
O
2 + 2H
2O + 4e → 4OH
- E（O
2/OH
-）=0.41V
When after system water flowing, in equipment, can form countless microbattery systems, form an electric field at its action space.The nascent state [H], the Fe that in treating processes, produce
2+deng can with waste water in many component generation redox reactions, such as can damaged colored chromophoric group or the auxochrome group of coloring matter in waste water, even chain rupture, reaches the effect of degradation and decolorization; The Fe generating
2+further be oxidized to Fe
3+, their hydrate has stronger absorption-flocculation activity, the molecule, metallics and the organic macromolecule that in planar water, disperse in a large number.The acting in conjunction of its principle of work based on electrochemistry, oxidation-reduction, physical adsorption and flocculation sediment processed waste water.That this method has is applied widely, treatment effect good, with low cost, convenient operating maintenance, do not need the advantages such as power consumption resource.This technique can reduce COD and colourity significantly for the pre-treatment of hard-degrading high concentrated waste water, improves the biodegradability of waste water, can have good effect to removing of ammonia nitrogen simultaneously.
The micro-electrolysis process of tradition is in the process using, reaction product forms sealing coat can not proceed and ineffective micro-electrolysis, iron carbon filler is easy to passivation and hardens, form short circuit and channel, cause treatment effect to decline, effluent quality worsens, and must change continually micro-electrolysis material for maintaining treatment effect, and not only working cost is high but also bring very big inconvenience to operational management.In addition, existing micro-electrolysis reactor can only be realized single micro-electrolysis reaction conventionally, cannot synchronously remove the suspended substance generating in reaction, can only remove the suspended substance in water outlet by the settler or the air-floating apparatus that arrange in addition, increased water treatment system overall cost of ownership, this has all had a strong impact on utilization and the popularization of micro-electrolysis process.
Summary of the invention
The object of the present invention is to provide a kind of for chemical industry, pretreated efficient micro-electrolysis polyphasic flow air supporting reactor of waste water of pharmaceutical industry, organic ingenious combination has been carried out in micro-electrolysis and polyphasic flow air flotation technology principle by this reactor, by adopting multiphase flow pump to carry out after high pressure solution gas former water, former water after molten gas is sent into reactor bottom cloth pool, in cloth pool, the air that high pressure is dissolved in former water obtains explosive decompression release, form the micro-bubble of 30 μ m ~ 50 μ m, microbubble and the former water reactor filler district that flows through from bottom to top, former water carries out micro-electrolysis reaction in packing area, reacted resultant flco continues to rise under the effect of water and microbubble, water overflow is afterwards crossed reactor internal layer dividing plate and is entered clean water chamber and flow downward, and finally discharge reactor by clean water chamber bottom water outlet, and the scum silica frost that micro-electrolysis reaction resultant flco forms forms scum layer under microbubble adhesion and buoyancy on reactor top, scum silica frost timing is discharged reactor by ash pit.High pressure solution air lift high the oxygen level in water, be conducive to promote the efficient performance of micro-electrolytic action, micro-bubble can provide larger specific surface area, be conducive to adsorb more resultant of reaction flco, make air supporting removal efficiency higher, the buoyancy that upwards mobile water and countless microbubble produce makes iron carbon filler be fluidized, increase the abundant contact reacts chance of water and filler, improve micro-electrolysis reaction efficiency, in addition, the timely removal of resultant of reaction and the fluidized of filler all can effectively be avoided the filler passivation phenomenon that hardens.Efficient micro-electrolysis polyphasic flow air supporting reactor of the present invention, has overcome existing micro-electrolysis reactor technical finesse waste water efficiency low, and the filler shortcomings such as passivation that easily harden have saved micro-electrolysis aerating apparatus and follow-up coagulating sedimentation or air supporting facility simultaneously.Compare prior art, this reactor, for Wastewater Pretreatment such as chemical industry, pharmacy, has effect remarkable, reduces investment outlay and takes up an area, can operation steady in a long-term etc. advantage, also can be widely used in high density, difficult degradation, the virose Wastewater Pretreatment of other industry.
Efficient micro-electrolysis polyphasic flow air supporting reactor of the present invention, comprise the molten gas intake pump of polyphasic flow, by cloth pool, micro-electrolysis stuffing district, flotation separation zone, the reactor body of clear water zone composition, be arranged on the water-distributing device in cloth pool, connect the pipeline of the molten gas intake pump of polyphasic flow and water-distributing device, be arranged on the Perforated clapboard between cloth pool and micro-electrolysis stuffing district, be arranged on the micro-electrolysis stuffing in micro-electrolysis stuffing district, be arranged on the filter between micro-electrolysis stuffing district and flotation separation zone, be arranged on the ash pit on top, flotation separation zone, be arranged on the rising pipe of bottom, clear water zone, the outlet water control valve being connected with rising pipe.It is characterized in that described water distribution district is positioned at the bottom of reactor body, described micro-electrolysis stuffing district is positioned at the middle part of reactor body, described flotation separation zone is positioned at the top of reactor body, described clear water zone is positioned at the outside of reactor body, described cloth pool, micro-electrolysis stuffing district cut off by dividing plate and clear water zone, described micro-electrolysis stuffing is regular shape iron carbon sintered compact, and proportion is 1.0 ~ 1.1g/cm
3, the molten gas intake pump of described polyphasic flow is ripe commercially available prod, as the multiphase flow gas-dissolving pump of German EDUR company, and the multiphase flow gas-dissolving pump of Japanese Ni Keni company.
Efficient micro-electrolysis polyphasic flow air supporting reactor of the present invention, compared with prior art, it has following beneficial effect: overcome existing micro-electrolysis reactor technical finesse waste water efficiency low, the filler shortcomings such as passivation that easily harden, micro-electrolysis aerating apparatus and follow-up coagulating sedimentation or air supporting facility have been saved simultaneously, there is effect remarkable, reduce investment outlay and take up an area, the advantages such as energy operation steady in a long-term.
Brief description of the drawings: Fig. 1 is structural representation of the present invention.
Embodiment: the invention will be further described below in conjunction with the specific embodiment of accompanying drawing, structure shown in Fig. 1 is one of them preferred structure of the present invention, it is efficient micro-electrolysis polyphasic flow air supporting reactor, mainly comprise the molten gas intake pump 1 of polyphasic flow, by cloth pool 2, micro-electrolysis stuffing district 3, flotation separation zone 4, the reactor body that clear water zone 5 forms, be arranged on the water-distributing device 6 in cloth pool 2, connect the pipeline 7 of the molten gas intake pump 1 of polyphasic flow and water-distributing device 6, be arranged on the Perforated clapboard 8 between cloth pool 2 and micro-electrolysis stuffing district 3, be arranged on the micro-electrolysis stuffing 9 in micro-electrolysis stuffing district 3, be arranged on the filter 10 between micro-electrolysis stuffing district 3 and flotation separation zone 4, be arranged on the ash pit 11 on 4 tops, flotation separation zone, be arranged on the rising pipe 12 of 5 bottoms, clear water zone, the outlet water control valve 13 being connected with rising pipe 12.Cloth pool 2 is positioned at the bottom of reactor body, micro-electrolysis stuffing district 3 is positioned at the middle part of reactor body, flotation separation zone 4 is positioned at the top of reactor body, and clear water zone 5 is positioned at the outside of reactor body, and cloth pool 2, micro-electrolysis stuffing district 3 cut off by dividing plate 14 and clear water zone 5.
Claims (2)
1. efficient micro-electrolysis polyphasic flow air supporting reactor, it is characterized in that comprising the molten gas intake pump of polyphasic flow, by cloth pool, micro-electrolysis stuffing district, flotation separation zone, the reactor body of clear water zone composition, be arranged on the water-distributing device in cloth pool, connect the pipeline of the molten gas intake pump of polyphasic flow and water-distributing device, be arranged on the Perforated clapboard between cloth pool and micro-electrolysis stuffing district, be arranged on the micro-electrolysis stuffing in micro-electrolysis stuffing district, be arranged on the filter between micro-electrolysis stuffing district and flotation separation zone, be arranged on the ash pit on top, flotation separation zone, be arranged on the rising pipe of bottom, clear water zone, the outlet water control valve being connected with rising pipe.
2. efficient micro-electrolysis polyphasic flow air supporting reactor according to claim 1, it is characterized in that described water distribution district is positioned at the bottom of reactor body, described micro-electrolysis stuffing district is positioned at the middle part of reactor body, described flotation separation zone is positioned at the top of reactor body, described clear water zone is positioned at the outside of reactor body, and described cloth pool, micro-electrolysis stuffing district cut off by dividing plate and clear water zone.
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|---|---|---|---|
| CN201410142971.XA CN103936208A (en) | 2014-04-11 | 2014-04-11 | Efficient micro-electrolysis multiphase flow air flotation reactor |
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| CN201410142971.XA CN103936208A (en) | 2014-04-11 | 2014-04-11 | Efficient micro-electrolysis multiphase flow air flotation reactor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254081A (en) * | 2015-10-22 | 2016-01-20 | 杨祺 | Method for treating high-concentration sewage by utilizing gas dissolving pump and industrial solid waste |
| CN105254082A (en) * | 2015-10-22 | 2016-01-20 | 杨祺 | Method for treating high-concentration sewage by utilizing liquid film catalytic oxidation and industrial solid waste |
| CN106517618A (en) * | 2016-12-28 | 2017-03-22 | 厦门绿动力环境治理工程有限公司 | Integrated garbage-percolator water purifying unit |
| CN106865702A (en) * | 2017-02-24 | 2017-06-20 | 化工部长沙设计研究院 | Efficient light electrolysis suspension bed apparatus |
| CN114195230A (en) * | 2021-11-23 | 2022-03-18 | 中车唐山机车车辆有限公司 | Urine wastewater treatment device and treatment method |
| CN117209003A (en) * | 2023-08-24 | 2023-12-12 | 江苏三贵资源再生有限公司 | Polytetrahydrofuran production waste liquid treatment device and process |
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| CN1205309A (en) * | 1997-07-16 | 1999-01-20 | 曹曼 | Integral waste water treating tech. by microelectrolysis reaction and dissolved air airfloat |
| KR100556686B1 (en) * | 2005-08-29 | 2006-03-10 | 고등기술연구원연구조합 | The method of nitrogen removal in plating wastewater |
| CN202519072U (en) * | 2012-03-13 | 2012-11-07 | 成都康洁水务有限公司 | Micro-electrolysis composite filtering device for micro-polluted water |
| CN202766369U (en) * | 2012-08-14 | 2013-03-06 | 陕西太阳景环保科技有限公司 | Airtight multilevel water purifying device |
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Patent Citations (5)
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| CN1205309A (en) * | 1997-07-16 | 1999-01-20 | 曹曼 | Integral waste water treating tech. by microelectrolysis reaction and dissolved air airfloat |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254081A (en) * | 2015-10-22 | 2016-01-20 | 杨祺 | Method for treating high-concentration sewage by utilizing gas dissolving pump and industrial solid waste |
| CN105254082A (en) * | 2015-10-22 | 2016-01-20 | 杨祺 | Method for treating high-concentration sewage by utilizing liquid film catalytic oxidation and industrial solid waste |
| CN106517618A (en) * | 2016-12-28 | 2017-03-22 | 厦门绿动力环境治理工程有限公司 | Integrated garbage-percolator water purifying unit |
| CN106517618B (en) * | 2016-12-28 | 2023-06-09 | 厦门绿动力环境治理工程有限公司 | Integrated garbage percolator water purifying unit |
| CN106865702A (en) * | 2017-02-24 | 2017-06-20 | 化工部长沙设计研究院 | Efficient light electrolysis suspension bed apparatus |
| CN114195230A (en) * | 2021-11-23 | 2022-03-18 | 中车唐山机车车辆有限公司 | Urine wastewater treatment device and treatment method |
| CN117209003A (en) * | 2023-08-24 | 2023-12-12 | 江苏三贵资源再生有限公司 | Polytetrahydrofuran production waste liquid treatment device and process |
| CN117209003B (en) * | 2023-08-24 | 2024-04-30 | 江苏三贵资源再生有限公司 | Polytetrahydrofuran production waste liquid treatment device and process |
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Application publication date: 20140723 |