CN201250127Y - Internal electrolytic iron reduction bed for papermaking wastewater advanced treatment - Google Patents
Internal electrolytic iron reduction bed for papermaking wastewater advanced treatment Download PDFInfo
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- CN201250127Y CN201250127Y CNU200820040916XU CN200820040916U CN201250127Y CN 201250127 Y CN201250127 Y CN 201250127Y CN U200820040916X U CNU200820040916X U CN U200820040916XU CN 200820040916 U CN200820040916 U CN 200820040916U CN 201250127 Y CN201250127 Y CN 201250127Y
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Abstract
The utility model discloses an internal electrolytic iron reduction bed for papermaking wastewater advanced treatment, which comprises a reactor outer wall (1) and a reactor inner wall (5). The reactor inner wall (5) is communicated with the reactor outer wall (1) through a through hole (6); the reactor inner wall (5) is provided with a filter plate (2); and metal screens are piled on the filter plate (2) and form a filling layer (4). The utility model has the advantages of simple structure, convenient maintenance and high decolourizing efficiency, simultaneously can speed up the reducing reaction, and is convenient for sewage drainage and reduction of filler blockage.
Description
Technical field
The utility model relates to a kind of internal electrolytic iron bed, relates in particular to a kind of internal electrolytic iron reduction bed that paper waste advanced treatment decoloration process is used that is used for.
Background technology
Paper-making industrial waste water belongs to high chroma, high basicity, high organic pollutant, highly difficult trade effluent that bio-degradable is low, contain organism such as multiple hydrocarbon, phenol, acid, benzene, anthracene, quinone and derivative thereof, polymkeric substance in the waste water, halides, especially xylogen are difficult to biochemical degradation especially.Papermaking enterprise has generally all carried out secondary biochemical treatment to its waste water, even tertiary treatment, but the CODcr of its water outlet (chemical oxygen demand (COD)) is generally more than 150mg/L, and the extension rate of colourity is greater than 64 times, and BOD
5(biochemical oxygen demand (BOD) on the 5th) is all very low usually, adopt conventional reactor, its colourity is reduced significantly, adopting traditional internal electrolytic iron bed decoloration process that carries out when handling, need carry out pH value to water inlet regulates, PH is transferred to 3～4, and adds inorganic salt to add the speed of fast response.In addition, in internal electrolytic iron bed, fill iron filings and cause the formation channel that hardens easily, the back flushing difficulty.
The utility model content
The technical problems to be solved in the utility model provides a kind of internal electrolytic iron reduction bed that designs at paper waste advanced treatment decoloration process specially, and it is simple in structure, easy to maintenance, decolorizing efficiency is high, working cost is low.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of internal electrolytic iron reduction bed that is used for the paper waste advanced treatment, comprise the reactor outer wall, on the reactor outer wall, be provided with inspection manhole and water inlet pipe, and inspection manhole and water inlet pipe are positioned at the lower end of reactor outer wall, bottom at the reactor outer wall is provided with blow-off pipe, periphery is provided with effluent trough in the upper end of reactor outer wall, on effluent trough, be provided with away guidance tape, bottom surface at effluent trough is provided with rising pipe, this internal electrolytic iron reduction bed that is used for the paper waste advanced treatment also comprises reactor wall, between reactor wall and reactor outer wall, there is communicating aperture that the two is communicated, in reactor wall, be provided with filter plate, stacked the several layers wire netting on filter plate, above-mentioned wire netting forms packing layer.
Between filter plate and packing layer, be provided with even distribution device.
Between the top and bottom of reactor outer wall, be provided with the internal reflux pipe, on the internal reflux pipe, be provided with reflux pump.
Reactor wall and the formed zone of reactor outer wall are the air bag district, and the air bag district is provided with airbag inflation pipe and air bag eduction pipe, is provided with the air bag deflation magnetic valve on the air bag deflation pipe.
Described wire netting is iron-carbon wire netting or iron-copper wire netting.
Described even distribution device is stainless steel perforated pipe or single hole menbrane aerator.
Compared with prior art, the utility model technology has the following advantages:
1, the utility model is simple in structure, easy to maintenance, cost is low and decolorizing efficiency is high.The utility model is by being provided with reactor wall in existing electrolytic iron iron bed, and filter plate is set on reactor wall, on filter plate, stacked the several layers wire netting, this simple structure just can realize the function of the internal electrolytic iron reduction bed that the paper waste decoloration process is used, simultaneously owing to replaced traditional iron filings with wire netting, formed numerous little grid reaction device, during use under the cutting action of current reduction reaction acutely carry out, decolorizing efficiency significantly improves; Along with the carrying out in reaction times, wire netting constantly consumes, and is as long as at the new wire netting of the upper supplementary of the utility model packing layer, easy to maintenance as required; The wire netting material is easy to get simultaneously, and low price has also just reduced manufacturing of the present utility model and operation expense.
2, the utility model can be accelerated the speed of response of reduction reaction.Owing on filter plate, be provided with even distribution device, like this, carry out in the process in reaction, by installing input air to this, wire netting is accomplished even consumption on the horizontal plane of whole reactor, and it is more abundant to make that waste water contacts with wire netting, strengthen the cutting action of water in each grid, make the flco material be not easy accumulation, simultaneously, owing to set up the internal reflux pipe, carry out in the process in reaction like this, make paper waste more abundant, further strengthened cutting dynamics dirt with contacting of wire netting, therefore, the utility model can significantly improve the speed of response of reduction reaction.
3, the utility model is convenient to blowdown, reduces filler and stops up.In the utility model, formed the air bag district between reactor outer wall and the reactor wall, the utility model is provided with airbag inflation pipe and air bag eduction pipe on the outer wall in this air bag district, in carrying out the reduction reaction process, the air bag district is full of pressure air, when the needs blowdown, close water inlet pipe and the normal valve that moves on the inlet pipe, the closing volume pump, open the pressure-releasing electromagnetic valve on the air bag, make the water level in the device reduce rapidly, the dirt that sticks on the filler falls bottom to intake buffer zone and air bag district after rise with current, discharges this device by the blow-off line that is arranged on bottom the water buffer zone into; Simultaneously, because carrying out along with the reaction times, wire netting is consumed, and need replenish new wire netting on the upper strata, like this at whole packing layer, from top to bottom, the wire netting spacing is more and more littler, forms the filtering fluidised form of similar anti-granularity, and the spacing of wire netting progressively increases from top to bottom, dirt just can be passed down through packing layer easily like this, makes blowdown easy.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the structural representation that the utility model is used for the internal electrolytic iron reduction bed of paper waste advanced treatment.
Embodiment
See figures.1.and.2, a kind of internal electrolytic iron reduction bed that is used for the paper waste advanced treatment, comprise reactor outer wall 1, on reactor outer wall 1, be provided with inspection manhole 7 and water inlet pipe 10, and inspection manhole 7 and water inlet pipe 10 are positioned at the lower end of reactor outer wall 1, be provided with blow-off pipe 18 in the bottom of reactor outer wall 1, periphery is provided with effluent trough 8 in the upper end of reactor outer wall 1, on effluent trough 8, be provided with away guidance tape 9, be provided with rising pipe 12 in the bottom surface of effluent trough 8, this internal electrolytic iron reduction bed that is used for the paper waste advanced treatment also comprises reactor wall 5, between reactor wall 5 and reactor outer wall 1, there is communicating aperture 6 that the two is communicated, just form two zones like this between reactor wall 5 and the reactor outer wall 1, one of them is a reaction zone, another one is the air bag district, in reactor wall 5, be provided with filter plate 2, on filter plate 2, stacked the several layers wire netting, above-mentioned wire netting forms packing layer 4, between filter plate 2 and packing layer 4, be provided with even distribution device 3, between the top and bottom of reactor outer wall 1, be provided with internal reflux pipe 13, on internal reflux pipe 13, be provided with reflux pump 14, reactor wall 5 is the air bag district with reactor outer wall 1 formed zone, the air bag district is provided with airbag inflation pipe 15 and air bag eduction pipe 16, is provided with air bag deflation magnetic valve 17 on air bag deflation pipe 16.
In the present embodiment, described wire netting is iron-carbon wire netting or iron-copper wire netting, and described even distribution device 3 is stainless steel perforated pipe or single hole menbrane aerator.
With reference to Fig. 1, it is four that work area of the present utility model is divided into: A is the water inlet buffer zone, and B is the packing area, and C is an exhalant region, and D is the air bag district.The utility model in use, through the paper waste after the secondary biochemical treatment, at first enter water inlet buffer zone A of the present utility model by water inlet pipe 10, water distribution effect by filter plate 2, current evenly enter packing area B, even distribution device 3 is set in the bottom of packing area, air enters this even distribution device 3 by intake ducting 11, under the effect of internal reflux pipe 13 and reflux pump 14, make that the water turbulence effect is strong, after the packing area produces electrochemical reaction, enter exhalant region C,, drain into next procedure by outlet conduit 12 by collecting channel.After operation for some time, device need carry out blowdown operation, close the valve on water inlet pipe and the intake ducting 11 this moment, closing volume pump 14, open the pressure-releasing electromagnetic valve 17 on the air bag district D, gas in the air bag enters in the atmosphere by air bag deflation pipe 16 rapidly, at this moment the interior A of internal electrolytic iron reduction bed that is used for the paper waste advanced treatment, B, water in three workspace of C is entered in the air bag by communicating aperture 6 rapidly, make the water level in the air bag district raise rapidly, water level in the internal electrolytic iron reduction bed descends rapidly, unload in current strippings that dirt under the effect is brought into the water buffer zone from top to down into and by the bottom that enters the air bag district communicating pipe 6, open sewage draining valve and carry out blowdown this moment.When blowdown finishes, open the valve on water inlet pipe and the intake ducting 11, water level progressively raises, after reaching a certain height, open reflux pump 14, and pass through airbag inflation pipe 15 to blister cavities injection pressure air, after the water level in the blister cavities is reduced to set(ting)value, gas injection process finishes, and device is returned to normal operating condition.
Claims (6)
1, a kind of internal electrolytic iron reduction bed that is used for the paper waste advanced treatment, comprise reactor outer wall (1), on reactor outer wall (1), be provided with inspection manhole (7) and water inlet pipe (10), and inspection manhole (7) and water inlet pipe (10) are positioned at the lower end of reactor outer wall (1), be provided with blow-off pipe (18) in the bottom of reactor outer wall (1), upper end periphery at reactor outer wall (1) is provided with effluent trough (8), on effluent trough (8), be provided with away guidance tape (9), be provided with rising pipe (12) in the bottom surface of effluent trough (8), it is characterized in that: this internal electrolytic iron reduction bed that is used for the paper waste advanced treatment also comprises reactor wall (5), between reactor wall (5) and reactor outer wall (1), there is communicating aperture (6) that the two is communicated, in reactor wall (5), be provided with filter plate (2), stacked the several layers wire netting on filter plate (2), above-mentioned wire netting forms packing layer (4).
2, the internal electrolytic iron reduction bed that is used for the paper waste advanced treatment according to claim 1 is characterized in that: be provided with even distribution device (3) between filter plate (2) and packing layer (4).
3, the internal electrolytic iron reduction bed that is used for the paper waste advanced treatment according to claim 1 is characterized in that: be provided with internal reflux pipe (13) between the top and bottom of reactor outer wall (1), be provided with reflux pump (14) on internal reflux pipe (13).
4, the internal electrolytic iron reduction bed that is used for the paper waste advanced treatment according to claim 1, it is characterized in that: reactor wall (5) is the air bag district with the formed zone of reactor outer wall (1), the air bag district is provided with airbag inflation pipe (15) and air bag eduction pipe (16), is provided with air bag deflation magnetic valve (17) on air bag deflation pipe (16).
5, the internal electrolytic iron reduction bed that is used for the paper waste advanced treatment according to claim 1, it is characterized in that: described wire netting is iron-carbon wire netting or iron-copper wire netting.
6, the internal electrolytic iron reduction bed that is used for the paper waste advanced treatment according to claim 2, it is characterized in that: described even distribution device (3) is stainless steel perforated pipe or single hole menbrane aerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820040916XU CN201250127Y (en) | 2008-06-26 | 2008-06-26 | Internal electrolytic iron reduction bed for papermaking wastewater advanced treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820040916XU CN201250127Y (en) | 2008-06-26 | 2008-06-26 | Internal electrolytic iron reduction bed for papermaking wastewater advanced treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201250127Y true CN201250127Y (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820040916XU Expired - Lifetime CN201250127Y (en) | 2008-06-26 | 2008-06-26 | Internal electrolytic iron reduction bed for papermaking wastewater advanced treatment |
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| CN (1) | CN201250127Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040299A (en) * | 2010-11-19 | 2011-05-04 | 中南民族大学 | Integrated laboratory waste water treatment method and device |
| CN102531110A (en) * | 2012-03-06 | 2012-07-04 | 山东大学 | Iron-copper microelectrolysis reaction tank and preparation method for copperized iron wire net plate |
| CN109264906A (en) * | 2018-10-26 | 2019-01-25 | 江苏全给净化科技有限公司 | A kind of combination unit for Wastewater from Organic Chemistry Laboratory processing |
-
2008
- 2008-06-26 CN CNU200820040916XU patent/CN201250127Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040299A (en) * | 2010-11-19 | 2011-05-04 | 中南民族大学 | Integrated laboratory waste water treatment method and device |
| CN102531110A (en) * | 2012-03-06 | 2012-07-04 | 山东大学 | Iron-copper microelectrolysis reaction tank and preparation method for copperized iron wire net plate |
| CN102531110B (en) * | 2012-03-06 | 2013-11-06 | 山东大学 | Iron-copper microelectrolysis reaction tank and preparation method for copperized iron wire net plate |
| CN109264906A (en) * | 2018-10-26 | 2019-01-25 | 江苏全给净化科技有限公司 | A kind of combination unit for Wastewater from Organic Chemistry Laboratory processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Huatian Nanjing Engineering & Technology Corporation, MCC Assignor: Zhongye Huatian Engineering Technology Co., Ltd. Contract record no.: 2011320000561 Denomination of utility model: Internal electrolytic iron reduction bed for papermaking wastewater advanced treatment Granted publication date: 20090603 License type: Exclusive License Record date: 20110415 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090603 |