CN201762149U - Internal circulating multidimensional electrocatalysis wastewater treating device - Google Patents
Internal circulating multidimensional electrocatalysis wastewater treating device Download PDFInfo
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- CN201762149U CN201762149U CN2010202406695U CN201020240669U CN201762149U CN 201762149 U CN201762149 U CN 201762149U CN 2010202406695 U CN2010202406695 U CN 2010202406695U CN 201020240669 U CN201020240669 U CN 201020240669U CN 201762149 U CN201762149 U CN 201762149U
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Abstract
The utility model discloses an internal circulating multidimensional electrocatalysis wastewater treating device, which is characterized in that a cylindrical body is adopted, wherein a water inlet and distribution pipe, an aerator pipe, an electrode reaction zone, a commutating zone, a water outlet zone and a scum collecting zone are sequentially arranged in the cylindrical body from top to bottom. The wastewater treating device combines the functions of electrocatalytic oxidation and air flotation, and has excellent treating effect, low energy consumption and long electrode service life.
Description
Technical field
The utility model belongs to wastewater treatment equipment, is specifically related to a kind of internal recycle multi-dimensional electrode catalytic oxidation treatment unit of treatment of Organic Wastewater.
Background technology
The high saliferous that industries such as treatment of Organic Wastewater, particularly agricultural chemicals, medicine, chemical industry, dyestuff produce, the processing of high density poisonous organic wastewater are difficult problems always.
At present, the processing of high concentration hard-degraded organic waste water generally is to adopt the physico-chemical process pre-treatment earlier, reduce or remove the bio-toxicity of waste water, improve the biodegradability of waste water, and then by biological process processing qualified discharge, its key is to select suitable materialization pretreatment method, guarantees carrying out smoothly of biological process processing.The pretreated physical chemistry method of current high concentration hard-degraded organic waste water commonly used has: iron charcoal micro-electrolysis method, Fenton reagent oxidation style, ozone oxidation method etc., iron charcoal micro-electrolysis method and Fenton reagent oxidation style all need to carry out under acidic conditions, need to regulate earlier pH to 3～4 during wastewater treatment, handle the back re-adjustment to neutral, not only complicated operation, process control difficulty, and the cost for wastewater treatment height, the saltiness of waste water is further increased after handling.The facility investment of ozone oxidation method is big, energy consumption is high, and running maintenance is strict.Along with the development of high-level oxidation technology (AOPs), the catalytic oxidation method more and more is subject to people's attention.Compare with other AOPs process, the advantage of electro-chemical water treatment technology is: (1) transfer transport only carries out between electrode and waste water component, does not need to add in addition redox agent, has also avoided the secondary pollution problem that is caused by other interpolation medicament thus; (2) can be by changing impressed current, voltage conditioned reaction condition at any time, controllability is stronger; (3) in the process issuable free radical do not have selectively directly with waste water in organic pollutant react, it is degraded to carbonic acid gas, water and simple organic, do not have or seldom produce secondary pollution; (4) electrochemical process generally carries out at normal temperatures and pressures, energy efficiency height, reaction conditions gentleness; (5) reactor apparatus and operation thereof are generally fairly simple, if reasonable in design, expense is not expensive; (6) when containing metal ion in the waste water, cathode and anode can work (cathodic reduction metal ion, anodic oxidation organism) simultaneously, so that processing efficiency improves as far as possible, and valuable chemical of recycling or metal simultaneously, thus avoid secondary pollution; (7) both can be used as individual curing, can combine with other treatment process again,, can improve biodegradable property of wastewater as pre-treatment; (8) have air supporting, flocculation, disinfection concurrently; (9) as a kind of cleaning procedure, its occupation area of equipment is little.Therefore, the catalytic oxidation method has bigger technical superiority and wide application prospect in high density poisonous organic wastewater process field.But problems such as electrocatalysis oxidation apparatus ubiquity weak point electrode life of domestic present research and development, hydraulics is poor, current efficiency is low, electrode specific surface area is little, waste water is because of very short in the actual residence time of electrocatalysis oxidation reaction district, and contaminant removal efficiency is lower.As Chinese patent mandate publication number CN101462784A, authorizing open day is on June 24th, 2009, name is called " electrocatalysis oxidation apparatus ", disclose that " a kind of electrocatalysis oxidation apparatus, the main points of its technical scheme are: the supplying drainage that backflow backflush device, catalytic oxidation pole plate district, aerator and band recoil valve are set from top to bottom in reactor cavity." this utility model is by aeration, backflow back flushing measure, though can solve problems such as the electrode surface pollutent adheres to preferably, there is serious short flow phenomenon in reaction zone, and effectively hydraulic detention time is extremely short, and contaminant degradation efficient is lower.And for example Chinese utility model patent ZL200620060946.8, authorizing open day is on July 25th, 2007, name is called " catalytic oxidation sewage treatment tank ", disclose that " a kind of catalytic oxidation sewage treatment tank; the main points of its technical scheme are: the catalytic oxidation sewage treatment tank is made up of cell body, water-in, water port, venting port, catalyzer, positive plate, negative plate and inlet pipe, and the aerating system of band recoil air valve is set in cell body bottom.Though this utility model has been avoided catalyst agglomeration by continuous aeration and pressurized air back flushing at intermittence, battery lead plate need not to clean, and has prevented channel, and the entire reaction groove is in complete mixing pattern, and short flow phenomenon is serious, can not guarantee wastewater treatment efficiency.
The utility model content
The purpose of this utility model is to overcome weak point in existing electro-catalytic oxidation technology and the device, and the internal recycle multi-dimensional electro-catalytic wastewater treating equipment that a kind of treatment effect is good, energy consumption is low, electrode life is long is provided.
The utility model technical solution problem adopts following technical scheme:
The constructional feature of the utility model internal recycle multi-dimensional electro-catalytic wastewater treating equipment is: cylindric body is set, in described body, sets gradually into water water distributor, aeration tube, electrode reaction district, commutating zone, exhalant region and scum silica frost collecting region from bottom to top.
The constructional feature of the utility model internal recycle multi-dimensional electro-catalytic wastewater treating equipment also is:
Described electrode reaction district forms cylindrical cavity by cylindric anode, on the middle shaft position of described cylindrical cavity, bar-shaped negative electrode is set, granule electrode is filled in the described cylindrical cavity, and supports constituent particle electrode fixed bed by the porous supporting plate that is positioned at described cylindrical cavity bottom.
Described granule electrode is the activated carbon grain sub-electrode.
Described scum silica frost collecting region is the top liquid level position at described cylindric body, is provided with by driven by motor, is used for the liquid level scum silica frost is scraped dreg scraper to the dreg collecting slot, is provided with the ash pit that is connected with dreg collecting slot in a side of described dreg collecting slot.
Described commutating zone is provided with the cowling panel that makes the water outlet current stabilization above described electrode reaction district.
Described aeration tube be arranged on described electrode reaction district the bottom, be used for driving the waste water up-flow to form the perforation gas distribution pipe of electrode reaction district internal recycle fluidised form, described perforation gas distribution pipe is made of vertical with the gas distribution main with one group, a parallel each other mutually level perforation gas distributionbranch pipe of horizontal gas distribution main, and described level perforation gas distributionbranch pipe is connected on the described horizontal gas distribution main.
Described water inlet water distributor is below described electrode reaction district, be provided for introducing the perforation water distributor of waste water, described perforation water distributor is made of vertical with the cloth water conduit tube with one group, a parallel each other mutually level perforation water distribution branch pipe of horizontal gas distribution main, and described level perforation water distribution branch pipe is connected on the described horizontal cloth water conduit tube.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, the utility model current collection catalyzed oxidation and air supporting act on one, and treatment effect is good, energy consumption is low, electrode life is long.
2, the utility model adopts the multidimensional granule electrode, increases electrode specific surface area, improves current efficiency, cuts down the consumption of energy and cost for wastewater treatment.
3, the utility model adopts internal recycle waterpower to mix and substitutes traditional aeration mixing, and one side is eliminated the dead angle, improves the equipment hydraulics, improves the mass-transfer efficiency of waste water in reaction; Bring in constant renewal in electrode surface solution on the other hand, prevent that concentration polarization and suspended substance from adhering to reduction electrode efficiency and work-ing life, electrode need not to clean in the use;
4, the utility model adopts fixed bed granule electrode and the combination of internal recycle waterpower mixed phase, solves fluidized-bed granule electrode supply current and Potential Distributing inequality, current efficiency is low, electrode easily pollutes and a difficult problem that the life-span lacks;
5, the utility model is given full play to the air supporting effect of the micro bubble of electrocatalysis process generation, further purifies liquid waste, and improves the whole water treatment effect of device.
6, the utility model adopts the activated carbon grain sub-electrode of absorption property excellence, by the adsorption of gac to pollutent, the realization hydraulic detention time separates with the pollutent residence time, pollutent prolonged greatly in the actual residence time in electrode reaction district, until being removed by catalytic oxidation effect degraded, waste water treatment efficiency greatly improves; When pollutent was degraded removal, gac was regenerated, and recovered the absorption property to pollutent in the waste water, therefore, in operational process, need not to change the activated carbon grain sub-electrode.
7, the utility model is provided with commutating zone on top, electrode reaction district, makes stable water outlet, and the scum silica frost that the electrocatalysis process forms is not subjected to disturbance, is convenient to collect separate.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model perforation gas distribution pipe structural representation.
Number in the figure: 1 body, 2 ash pits, 3 dreg collecting slots, 4 motors, 5 dreg scrapers, 6 effluent troughs, 7 adjustable height rising pipes, 8 leads, 9 silicon controlled rectifiers, 10 triggering devices, 11 voltate regulators, 12 electric control gears, 13 gas blowers, 14 volume dampers, 15 water inlet water distributors, 16 water inlet pipes, 17 water inlet variable valve, 18 perforation gas distribution pipes, 19 granule electrodes, 20 anodes, 21 negative electrodes, 22 cowling panels, 23 porous supporting plates.
Embodiment
Referring to Fig. 1, the electrode reaction district forms cylindrical cavity by cylindric anode 20, bar-shaped negative electrode 21 is set on the middle shaft position of cylindrical cavity, and granule electrode 19 is filled in the cylindrical cavity, and supports constituent particle electrode fixed bed by the porous supporting plate 23 that is positioned at the cylindrical cavity bottom.In the present embodiment, negative electrode adopts graphite rod or stainless steel bar, and anode adopts the titanium plate of surface plating catalyzer, and catalyzer coating can adopt SnO
2, materials such as Ru-Ir, Ir-Ta, Pt, it is the granulated active carbon of 3～5mm that granule electrode adopts particle diameter, body can adopt materials such as PVC, PE, carbon steel line with rubber or stainless steel to make.
The scum silica frost collecting region is the top liquid level position at cylindric body 1, is provided with by motor 4 to drive, be used for the liquid level scum silica frost is scraped dreg scraper 5 to the dreg collecting slot 3, is provided with the ash pit 2 that is communicated with dreg collecting slot in dreg collecting slot 3 one sides.
Commutating zone is provided with the cowling panel 22 that makes the water outlet current stabilization above the electrode reaction district.
Aeration tube be arranged on the electrode reaction district the bottom, be used for driving the waste water up-flow to form the perforation gas distribution pipe 18 of electrode reaction district internal recycle fluidised form.Perforation gas distribution pipe 18 is made of a horizontal gas distribution main 18a level perforation gas distributionbranch pipe 18b vertical with main with a group, that be parallel to each other, and level perforation gas distributionbranch pipe 18b is connected 18a last (as shown in Figure 2) on the horizontal gas distribution main.
The water inlet water distributor is provided for introducing the perforation water distributor 15 of waste water below the electrode reaction district.Vertical with horizontal cloth water conduit tube with one group by a horizontal cloth water conduit tube, the parallel each other mutually level perforation water distribution branch pipe of perforation water distributor constitutes, and level perforation water distribution branch pipe is connected on the horizontal cloth water conduit tube.
Waste water is entered in the reactor after water inlet variable valve 17 dominant discharge by water inlet pipe 16, through water inlet water distributor 15 uniformly distributings in the bottom in electrode reaction district, air is introduced behind volume damper 14 control air quantity by gas blower 13, form the tiny bubble uniformly distributing in bottom, electrode reaction district by perforation gas distribution pipe 18, the air bubble buoyancy process drives the waste water up-flow and enters the fixed bed electrode reaction zone that activated carbon grain sub-electrode 19 constitutes, the interior waste water of reactor is risen in the cylindrical cavity that anode 20 forms, outside cavity, descend, formation is that the waste water internal recycle at center flows with the anode, cylindric anode 20, bar-shaped negative electrode 21 and granule electrode 19 common formation multi-dimensional electro-catalytic electrode reaction districts, pollutants in waste water is held back by granule electrode 19 absorption that with the gac are material when flowing through the electrode reaction district, and at negative electrode, under the compound vitamin electrode catalytic oxidation effect that anode and granule electrode constitute by efficient degradation, make granule electrode obtain regeneration incessantly simultaneously, guarantee that pollutants in waste water is had lasting adsorption.Waste water after catalytic oxidation is handled is discharged through adjustable height rising pipe 7 by effluent trough 6 by behind the cowling panel 22 energy dissipating current stabilizations.Suspended substance in the waste water forms scum layer under the air supporting effect of the micro bubble that the electrocatalysis process forms, drive dreg scraper 5 by motor 4, regularly the scum silica frost of the water surface is scraped to dreg collecting slot 3, discharges through ash pit 2.
In concrete the enforcement, electric control gear 12 is made up of silicon controlled rectifier 9, triggering device 10 and voltate regulator 11, can realize the intelligent control function by the write-in program instruction.The correlation technique parameter:
Operating voltage: 4-8V; Hydraulic detention time: 15-45min
COD
CrClearance: 20%-50%; Handle unit waste water energy consumption: 1-3kWh/m
3
Wastewater biodegradability improves: more than 50%; The waste water acute biological toxicity reduces: more than 50%.
Claims (7)
1. an internal recycle multi-dimensional electro-catalytic wastewater treating equipment is characterized in that being provided with cylindric body (1), in described body (1), sets gradually into water water distributor, aeration tube, electrode reaction district, commutating zone, exhalant region and scum silica frost collecting region from bottom to top.
2. internal recycle multi-dimensional electro-catalytic wastewater treating equipment according to claim 1, it is characterized in that: described electrode reaction district forms cylindrical cavity by cylindric anode (20), bar-shaped negative electrode (21) is set on the middle shaft position of described cylindrical cavity, granule electrode (19) is filled in the described cylindrical cavity, and supports constituent particle electrode fixed bed by the porous supporting plate (23) that is positioned at described cylindrical cavity bottom.
3. internal recycle multi-dimensional electro-catalytic wastewater treating equipment according to claim 2 is characterized in that: described granule electrode is the activated carbon grain sub-electrode.
4. internal recycle multi-dimensional electro-catalytic wastewater treating equipment according to claim 1, it is characterized in that: described scum silica frost collecting region is the top liquid level position at described cylindric body (1), setting is driven, is used for the liquid level scum silica frost is scraped dreg scraper (5) to the dreg collecting slot (3) by motor (4), is provided with the ash pit (2) that is connected with dreg collecting slot (3) in a side of described dreg collecting slot (3).
5. internal recycle multi-dimensional electro-catalytic wastewater treating equipment according to claim 1 is characterized in that: described commutating zone is provided with the cowling panel (22) that makes the water outlet current stabilization above described electrode reaction district.
6. internal recycle multi-dimensional electro-catalytic wastewater treating equipment according to claim 1, it is characterized in that described aeration tube is arranged on the bottom in described electrode reaction district, is used for driving the waste water up-flow to form the perforation gas distribution pipe (18) of electrode reaction district internal recycle fluidised form, described perforation gas distribution pipe (18) is vertical with the gas distribution main with one group by a horizontal gas distribution main (18a), parallel each other mutually level perforation gas distributionbranch pipe (18b) constitutes, and described level perforation gas distributionbranch pipe (18b) is connected on the described horizontal gas distribution main on (18a).
7. internal recycle multi-dimensional electro-catalytic wastewater treating equipment according to claim 1, it is characterized in that described water inlet water distributor is below described electrode reaction district, be provided for introducing the perforation water distributor (15) of waste water, described perforation water distributor (15) is made of vertical with the cloth water conduit tube with one group, a parallel each other mutually level perforation water distribution branch pipe of horizontal gas distribution main, and described level perforation water distribution branch pipe is connected on the described horizontal cloth water conduit tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202406695U CN201762149U (en) | 2010-06-25 | 2010-06-25 | Internal circulating multidimensional electrocatalysis wastewater treating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202406695U CN201762149U (en) | 2010-06-25 | 2010-06-25 | Internal circulating multidimensional electrocatalysis wastewater treating device |
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| CN201762149U true CN201762149U (en) | 2011-03-16 |
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| CN2010202406695U Expired - Fee Related CN201762149U (en) | 2010-06-25 | 2010-06-25 | Internal circulating multidimensional electrocatalysis wastewater treating device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863533A (en) * | 2010-06-25 | 2010-10-20 | 合肥工业大学 | Internal recycle multi-dimensional electro-catalytic wastewater treating equipment |
| CN105967282A (en) * | 2016-06-17 | 2016-09-28 | 中海油天津化工研究设计院有限公司 | Electrocatalytic oxidation device running under ultrahigh voltage condition and process method |
-
2010
- 2010-06-25 CN CN2010202406695U patent/CN201762149U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863533A (en) * | 2010-06-25 | 2010-10-20 | 合肥工业大学 | Internal recycle multi-dimensional electro-catalytic wastewater treating equipment |
| CN105967282A (en) * | 2016-06-17 | 2016-09-28 | 中海油天津化工研究设计院有限公司 | Electrocatalytic oxidation device running under ultrahigh voltage condition and process method |
| CN105967282B (en) * | 2016-06-17 | 2018-12-11 | 中海油天津化工研究设计院有限公司 | A kind of electrocatalysis oxidation apparatus run under the conditions of extra-high voltage and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20130625 |