CN202054648U - Iron-carbon micro-electrolysis equipment of filling fluidized bed - Google Patents
Iron-carbon micro-electrolysis equipment of filling fluidized bed Download PDFInfo
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- CN202054648U CN202054648U CN201120182145XU CN201120182145U CN202054648U CN 202054648 U CN202054648 U CN 202054648U CN 201120182145X U CN201120182145X U CN 201120182145XU CN 201120182145 U CN201120182145 U CN 201120182145U CN 202054648 U CN202054648 U CN 202054648U
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Abstract
The utility model relate to fluidized bed equipment for treating refractory industrial waste water, in particular to iron-carbon micro-electrolysis equipment of a filling fluidized bed. The iron-carbon micro-electrolysis equipment comprises a bed body, wherein the bed body comprises a buffer layer, a filling layer and an isolation layer which are connected in sequence from the top down, the filling layer is internally provided with fillers, one side of the isolation layer is provided with a water inlet, one side at the upper part of the buffer layer is provided with a water outlet, an aeration head and an aeration pipeline which are connected mutually are arranged at the bottom of the isolation layer, and a pored supporting plate is arranged between the isolation layer and the filling layer. According to the utility model, by adopting the manner of fluidizing carbon particles in iron filler gaps to enhance the reaction effect, a micro-electrolysis effect is strengthened, the problems of passivation and caking are effectively solved, the utilization ratio of the fillers is improved, the filler filling operation is simplified, and the maintenance and operation cost is reduced; and meanwhile, refractory pollutants in the waste water can be effectively removed, the BOD/COD (Biochemical Oxygen Demand/Chemical Oxygen Demand) of effluent is increased, so that the waste water is more suitable to subsequent biochemical treatment.
Description
Technical field
The utility model relates to the fluidized bed plant that a kind of indegradable industrial effluent is handled usefulness, more specifically says to relate to the little electrolyzer of a kind of filling fluidized bed iron charcoal.
Background technology
Iron charcoal method has been handled waste water since utility model, and existing more domestic enterprise utilizes its principle, improves design and is developed into various wastewater treatment equipments, is widely used in the wastewater treatment of numerous industries such as petrochemical industry, chemical industry, printing and dyeing.Its cardinal principle is with stopping composition such as iron filings and charcoal particles, is seated in the specific device, makes so-called bed electrolysis.When waste water passed through, iron became anode, and charcoal becomes negative electrode, produces various microbatterys, and little electrochemical reaction takes place, and realized the wastewater treatment purpose.
Adopt the main form and the relative merits of equipment of the little electrolysis principle work of iron charcoal to reduce at present:
1) fixed bed: the fixed-bed structure that adopts iron filings to fill is simple, but iron filings passivation caking is serious, needs often activation, often faces blockage problem; And it is simple to adopt iron filings and charcoal particle to mix the fixed-bed structure of filling, and is convenient to processing and fabricating, but after waste iron filing consumption, and the charcoal particle loads fixed bed after need taking out and mixing again with waste iron filing again;
2) agitated bed: the agitated bed that adopts reflux pump or stirrer to stir, waterpower mixing condition is good, waste iron filing and the consumption of charcoal particle are comparatively even, basically eliminate caking and blocking problem; But agitated bed also exists and stirs the power consumption height, agitator (reflux pump) mechanical part consumes problems such as serious wear.
Chinese patent CN 201128692 discloses a kind of micro-electrolytic water treatment unit, comprise that a body, bed body are near the water inlet pipe of upper end one side, the rising pipe of the relative side with water inlet pipe in the close upper end of bed body, the porous support plate of an intravital filler bottom, bed body top is near the effluent weir of rising pipe, the dividing plate that is provided with a bottom perforate in the middle of the bed body is divided into two chambeies with bed body inside, the bottom in two chambeies is set to the bucket shape structure respectively in the bed body, two aeration tubes is arranged respectively from the external bottom that feeds two chambeies in the bed body of bed.The top of filler is provided with grid in the bed body, and grid is provided with mesh, is provided with noble electrode as anode in the described filler, and an end of noble electrode connects rectifying device by lead, and grid connects rectifying device as negative electrode by lead.Adopt aeration tube to impact the bucket end downwards, make the fine particle that falls to the bucket end be in fluidized state, unlikely hardening, and can micro-electrolysis reaction further take place with waste water, during the organic wastewater with difficult degradation thereby access to plant, power-on adds external electric field, iron charcoal micro-electrolysis reaction is reinforced, and the treatment time shortens.
The utility model content
In order to solve defective and the deficiency that above-mentioned prior art exists, the utility model provides a kind of processing waste water effect stability, while can effectively prevent the filler passivation, problem hardens, filler utilization ratio height, the filler filling is simple to operate, safeguards and the low little electrolyzer of filling fluidized bed iron charcoal of running cost.
The technical solution of the utility model: the little electrolyzer of a kind of filling fluidized bed iron charcoal, comprise a body, described bed body is made of the buffer layer, packing layer and the sealing coat that connect successively from top to bottom, be provided with filler in the described packing layer, described sealing coat one side is provided with water-in, described buffer layer top one side is provided with water outlet, and described sealing coat bottom is provided with aeration head and is connected with aerating pipelines, is provided with back up pad with holes between described sealing coat and the packing layer.
Filler is made of iron filings particle and charcoal particle, and wherein the charcoal grain diameter can adopt gac, the coke granule of 20～60 orders; The iron filings particle then can adopt metal processing clout.
The setting of back up pad with holes not only makes water inlet can flow into packing layer smoothly, react with the filler in the packing layer, can also make the iron filings particle that diminishes because of long reaction fall into sealing coat by the hole on it, after the blowback of aeration head air-flow, continuation and water inlet react;
Aeration gas flow is delivered to aeration head by advancing aerating pipelines; evenly gas distribution enters sealing coat; with fluidisation in the space of the charcoal particle iron filler in filler in the packing layer; the charcoal particle collides with the iron filler in fluid mapper process; make attached to the passive film of iron carbon surface and removed; make water treatment effect more stable, charcoal particle or other particles that part is brought into buffer layer by aeration will effectively reduce the suspended solids of loss of charcoal particulate and equipment water outlet by the gravity settling backfill bed of material.
Preferably, described water-in place side is relative with water outlet place side.Water inlet position is relative with the water outlet position, can make filler more abundant to the processing of waste water, and effect is more stable.
Preferably, the hole on the described back up pad with holes is rounded or square, and its arranged distribution is equilateral triangle, square or regular hexagon.The iron filings particle that the influence of the shape in hole and arrangement mode diminishes because of long reaction on the back up pad with holes is fallen into the quantity of sealing coat.
Preferably, described aeration head adopts mesh cloth air sifter plate, and perforate is rounded or square, and its arranged distribution is equilateral triangle, square or regular hexagon.The shape in hole and arrangement mode directly influence the size and Orientation of blowback air-flow on the aeration head.
Preferably, described bed body is column, and cylinder circumscribed circle diameter and post height ratio are 0.2～2.
The utility model is divided into sealing coat, packing layer and buffer layer with the bed body and passes through charcoal particle fluidizing mode in iron filler space, the intensified response effect, strengthened little electrolytic action, to the COD(chemical oxygen demand (COD)) and the removal effect of colourity be higher than common iron, iron carbon micro electrolyser; By rheomorphism, effectively prevented passivation, the problem that hardens, improved the utilization ratio of filler, simplified filler filling operation, reduced maintenance and running cost; The utility model can effectively be removed difficult degradation pollutent in the waste water as the Wastewater Pretreatment unit, improves the BOD/COD of water outlet, makes waste water be more suitable for follow-up biochemical treatment, makes water outlet up to standard fully.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
1. bodies among the figure, 2. water-in, 3. water outlet, 4. filler, back up pad 5. with holes, 6. aeration head, 7. sealing coat, 8. packing layer, 9. buffer layer, 10. aerating pipelines.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail, but is not restriction the utility model protection domain.
As shown in Figure 1, the little electrolyzer of a kind of filling fluidized bed iron charcoal comprises the bed body 1 that is made of the buffer layer 9, packing layer 8 and the sealing coat 7 that connect successively from top to bottom, and a bed body 1 is column, and cylinder circumscribed circle diameter and post height ratio are 1:0.1; Be provided with filler 4 in the packing layer 8, filler 4 is made of iron filings particle and charcoal particle; Be provided with back up pad 5 with holes between sealing coat 7 and the packing layer 8, the hole on the back up pad 5 with holes is rounded or square, and its arranged distribution is equilateral triangle, square or regular hexagon; Sealing coat 7 one sides are provided with water-in 2, and buffer layer 9 tops one side is provided with water outlet 3, and water-in 2 place sides are relative with water outlet 3 place sides; Sealing coat 7 bottoms are provided with aeration head 6 and are connected with aerating pipelines 10, and aeration head 6 adopts mesh cloth air sifter plate, and perforate is rounded or square, and its arranged distribution is equilateral triangle, square or regular hexagon.
When the utility model used, waste water entered sealing coat 7 through water inlet pipe 2, enters packing layer 8 by back up pad 5 with holes, with filler 4 electrochemical reaction took place, and with effects such as redox and coagulations.Iron filings particle behind the long reaction diminishes gradually, can fall into sealing coat 7 from the hole of back up pad 5, and after the blowback of aeration head air-flow, continuation and water inlet react.Aeration gas flow is delivered to aeration head 6 by advancing aerating pipelines 10; evenly gas distribution enters sealing coat 7; with fluidisation in the space of the charcoal particle iron filler in filler 4 in the filler 4; the charcoal particle collides with the iron filler in fluid mapper process; make attached to the passive film of iron carbon surface and removed; charcoal particle or other particles that part is brought into buffer layer 9 by aeration will effectively reduce the suspended solids of loss of charcoal particulate and equipment water outlet by the gravity settling backfill bed of material 8.In the equipment water outlet process and behind the coagulation, can effectively promote the biodegradability of waste water, create favorable conditions for subsequent disposal is up to standard.
The pH value scope that the utility model is suitable for is the slant acidity condition, when water inlet pH less than 4 the time, better effects if.This equipment can be used for the pre-treatment of petrochemical industry, dye chemical industry, pesticide chemical and other indegradable industrial effluents, and is strong to the COD adaptive faculty, anti-shock loading, and COD is unrestricted to water inlet, can reach very high decolorizing effect.
Application examples 1
Water inlet is certain dye chemical industry waste water, and pH is 1.8～9.5, and COD is 5000～8000mg/L, colourity is 2000～8000 times, BOD/COD is 0.18～0.25, through the device processes of the utility model, in and behind the coagulation, water outlet pH is 7～9, COD is 3000～4000mg/L, and colourity is 100～300 times, and BOD/COD is 0.35～0.4, colourity has effectively been removed in pre-treatment through the utility model equipment, has improved the biodegradability of waste water.
Application examples 2
Water inlet is certain pesticide chemical waste water, pH is 2～5, COD is 1500～3000mg/L, and BOD/COD is 0.12～0.2, through the utility model device processes, in and coagulation after, water outlet pH is 7～9, and COD is 600～1000mg/L, and BOD/COD is 0.3～0.35, reduce the COD of waste water, effectively improved the biodegradability of waste water.
Claims (5)
1. little electrolyzer of filling fluidized bed iron charcoal, comprise a body, it is characterized in that: described bed body is made of the buffer layer, packing layer and the sealing coat that connect successively from top to bottom, be provided with filler in the described packing layer, described sealing coat one side is provided with water-in, described buffer layer top one side is provided with water outlet, and described sealing coat bottom is provided with aeration head and is connected with aerating pipelines, is provided with back up pad with holes between described sealing coat and the packing layer.
2. the little electrolyzer of filling fluidized bed iron charcoal according to claim 1 is characterized in that: described water-in place side is relative with water outlet place side.
3. the little electrolyzer of filling fluidized bed iron charcoal according to claim 1, it is characterized in that: the hole on the described back up pad with holes is rounded or square, and its arranged distribution is equilateral triangle, square or regular hexagon.
4. the little electrolyzer of filling fluidized bed iron charcoal according to claim 1 is characterized in that: described aeration head adopts mesh cloth air sifter plate, and perforate is rounded or square, and its arranged distribution is equilateral triangle, square or regular hexagon.
5. the little electrolyzer of filling fluidized bed iron charcoal according to claim 1 is characterized in that: described bed body is column, and cylinder circumscribed circle diameter and post height ratio are 0.2～2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120182145XU CN202054648U (en) | 2011-06-01 | 2011-06-01 | Iron-carbon micro-electrolysis equipment of filling fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120182145XU CN202054648U (en) | 2011-06-01 | 2011-06-01 | Iron-carbon micro-electrolysis equipment of filling fluidized bed |
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| Publication Number | Publication Date |
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| CN202054648U true CN202054648U (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120182145XU Expired - Fee Related CN202054648U (en) | 2011-06-01 | 2011-06-01 | Iron-carbon micro-electrolysis equipment of filling fluidized bed |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276019A (en) * | 2011-06-01 | 2011-12-14 | 杭州朗利环保工程有限公司 | Packed-fluidized bed ferric-carbon micro-electrolysis device |
| CN102627367A (en) * | 2012-04-24 | 2012-08-08 | 东北石油大学 | Method for advanced treatment of coking wastewater |
| CN102887570A (en) * | 2012-06-13 | 2013-01-23 | 东莞市珠江海咸水淡化研究所 | Micro-electrolysis reaction technique of iron carbon filler three-phase circulating fluidized bed and reactor |
| CN103318991A (en) * | 2013-07-17 | 2013-09-25 | 重庆泰克环保工程设备有限公司 | Iron-carbon electrolytic filter unit and its water treatment method |
| CN103508519A (en) * | 2013-10-25 | 2014-01-15 | 浙江工业大学 | Free-replacement iron-carbon micro-electrolysis water treatment device |
-
2011
- 2011-06-01 CN CN201120182145XU patent/CN202054648U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276019A (en) * | 2011-06-01 | 2011-12-14 | 杭州朗利环保工程有限公司 | Packed-fluidized bed ferric-carbon micro-electrolysis device |
| CN102627367A (en) * | 2012-04-24 | 2012-08-08 | 东北石油大学 | Method for advanced treatment of coking wastewater |
| CN102887570A (en) * | 2012-06-13 | 2013-01-23 | 东莞市珠江海咸水淡化研究所 | Micro-electrolysis reaction technique of iron carbon filler three-phase circulating fluidized bed and reactor |
| CN102887570B (en) * | 2012-06-13 | 2014-09-24 | 东莞市珠江海咸水淡化研究所 | Micro-electrolysis reaction technique of iron carbon filler three-phase circulating fluidized bed and reactor |
| CN103318991A (en) * | 2013-07-17 | 2013-09-25 | 重庆泰克环保工程设备有限公司 | Iron-carbon electrolytic filter unit and its water treatment method |
| CN103318991B (en) * | 2013-07-17 | 2015-08-26 | 重庆泰克环保工程设备有限公司 | Iron carbon electrolytic filter device and water treatment method thereof |
| CN103508519A (en) * | 2013-10-25 | 2014-01-15 | 浙江工业大学 | Free-replacement iron-carbon micro-electrolysis water treatment device |
| CN103508519B (en) * | 2013-10-25 | 2015-04-22 | 浙江工业大学 | Free-replacement iron-carbon micro-electrolysis water treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20150601 |
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| EXPY | Termination of patent right or utility model |