CN203781882U - Oxidation-flocculation complex bed device for landfill leachate - Google Patents
Oxidation-flocculation complex bed device for landfill leachate Download PDFInfo
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- CN203781882U CN203781882U CN201420033116.0U CN201420033116U CN203781882U CN 203781882 U CN203781882 U CN 203781882U CN 201420033116 U CN201420033116 U CN 201420033116U CN 203781882 U CN203781882 U CN 203781882U
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- flocculating
- oxidizing
- oxidation
- rectifier
- percolate
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Abstract
The utility model discloses an oxidation-flocculation complex bed device for landfill leachate. The oxidation-flocculation complex bed device comprises a shell, a rectifier and a stirring paddle driving device, wherein a water outlet cavity, a pebble cushion layer, a packing layer and a water inlet cavity are sequentially arranged in the shell from bottom to top; a stirring paddle and at least two groups of electrodes are arranged in the water inlet cavity; an air inlet pipe is arranged in the pebble cushion layer, and the rectifier and the stirring paddle driving device are arranged outside the shell; the stirring paddle is connected to the stirring paddle driving device; and each electrode group is connected to the rectifier. The oxidation-flocculation complex bed device integrates the functions of catalytic oxidation, flocculation, filtration, absorption, complexation, air floatation and replacement; the removal rate of the oxidation-flocculation complex bed device for ammonia nitrogen and chromaticity is above 90%, the removal rate of the oxidation-flocculation complex bed device for COD (Chemical Oxygen Demand) and heavy metal ions is above 80%, and the biodegradability of the landfill leachate is greatly improved; and the oxidation-flocculation complex bed device is high in degree of automation, small in floor space, high in treatment efficiency, low in cost, simple in equipment, stable in system and convenient to operate and manage.
Description
Technical field
The utility model relates to a kind of for percolate oxidizing, flocculating multiple-hearth device.
Background technology
Percolate refer to rubbish stack and landfill process in owing to fermenting and the drip washing of rainwater, washing away, and the immersion of surface water and the black brown liquid that oozes out from refuse landfill.It is the high concentrated organic wastewater that a kind of composition is very complicated, water quality and quantity changes greatly, the harm time length is long, is to produce one of principal element of secondary pollution in garbage loading embeading process.In general, percolate pH between 4～9, COD
crin the scope of 2000～62000mg/L, BOD
5in the scope of 60～45000mg/L.
Biological treatment is a kind of main body treatment process of percolate.The concrete device form of biological treatment has traditional activated sludge process, stabilization pond method, bio-disc system, SBR aerobic treatment technology device, UASB Anaerobic Methods in Treating device, anaerobism fixed-film biological reactor etc.Wherein activated sludge process, blodisc and SBR aerobic treatment technology device etc., their treatment effect is good, and hydraulic detention time is shorter, service experience is abundant, but construction investment is large, energy consumption is large, operational and administrative expenses is high; Stabilization pond is processed fairly simple, reduced investment, convenient management comparatively speaking, but dwell time of sewage is long, floor space is large, larger with seasonal variation to particle diameter larger organic molecule poor removal effect and detergent power.Adopt the reduction COD that up-flow anaerobic sludge blanket (UASB) can be to a great extent
cr, but its water outlet COD
crbe worth still highlyer, and in percolate, contain a large amount of sex pheromones yet, effluent quality does not still reach secondary discharge standard.
Domestic built percolate sewage work ubiquity the poor problem of operating performance at present, its major cause is percolate complicated, particularly the toxic substance such as the contained ammonia nitrogen of the percolate of " old ", heavy metal ion is dense, to microbial growth, breeding has restraining effect, and this has just caused difficulty to biological degradation method.Therefore, change at short notice percolate water quality condition, improve its biodegradability, the concentration of minimizing free ammonia, for follow-up biological treatment provides good basic substance, just seem extremely important.
Summary of the invention
In order to overcome the deficiencies in the prior art, technical problem to be solved in the utility model is to provide that a kind of processing efficiency is high, equipment is simple, the oxidizing, flocculating multiple-hearth device for percolate of system stability.
For achieving the above object, the utility model is achieved through the following technical solutions: a kind of oxidizing, flocculating multiple-hearth device for percolate, comprise housing, rectifier, stirring rake drive unit, in housing, be provided with successively from the bottom to top water chamber, cobble bed course, packing layer and intake antrum; In intake antrum, be provided with stirring rake and two arrays of electrodes group at least; In cobble bed course, be provided with inlet pipe, described rectifier, stirring rake drive unit are located at the outside of housing; Described stirring rake is connected with stirring rake drive unit; Each electrode group is all connected with rectifier.
Principle of work of the present utility model is: percolate enters intake antrum, then by regulate on rectifier knob controlling electrolytic oxidation reaction required voltage and electric current, make the strong oxidizer producing in HO that pollutent produces by electrode group brine electrolysis and electrolytic process (as CLO
-deng) effect under carry out oxygenolysis.Meanwhile, open stirring rake drive unit stirring rake is rotated, and by inlet pipe 10 aerations, filler is contacted with the pollutent in percolate, a series of physical-chemical reaction occurs, generate the coagulating agent of one or more nascent states and the oxygenant of nascent state.The multiple physics chemical action such as electrolysis like this, flocculation, absorption, catalyzed oxidation, complexing, displacement, air supporting, filtration can be carried out simultaneously in oxidizing, flocculating multiple-hearth device, thereby the pollutent in percolate is removed rapidly.After packing layer filtration is saturated, need to carry out back flushing regeneration, while carrying out back flushing, device rising pipe doubles as the water inlet pipe of back flushing, and device water inlet pipe doubles as the water shoot of back flushing.Percolate is after treatment by water chamber qualified discharge or carry out the biology in-depth processing of next stage.
Beneficial effect: compared with prior art, the utility model has the advantage of, the utility model is to utilize oxidizing, flocculating multiple-hearth technology to process percolate, significantly reduce the Pollutant levels such as ammonia nitrogen in percolate, COD, heavy metal ion, for follow-up biological treatment provides good basic substance.By processing of the present utility model, can improve the clearance of ammonia nitrogen, COD, colourity, to the clearance of ammonia nitrogen, colourity, can reach more than 90%, to the clearance of COD, heavy metal ion, can reach more than 80%, can greatly improve the biodegradability of percolate; And plant automation degree is high, and floor space is little, and processing efficiency is high, and cost is lower, and equipment is simple, system stability, operational management is convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is further elaborated.Specific embodiment described herein is only in order to explain the utility model, but and is not used in restriction the utility model.
As shown in Figure 1, a kind of oxidizing, flocculating multiple-hearth device for percolate, comprises housing 1, is provided with successively water chamber 4, sieve plate 9, cobble bed course 5, packing layer 6, intake antrum 7 in housing 1 from bottom to top; In the outside of housing 1, be provided with stirring rake drive unit 3, rectifier 2; A side at intake antrum 7 is provided with water inlet pipe 12; In intake antrum 7, be provided with electrode group and stirring rake 8; Described electrode group has four, and described in each, electrode group comprises positive plate 10 and negative plate 11, and all positive plates 10 are all connected with the positive pole on rectifier 2, and all negative plates 11 are all connected with the negative pole on rectifier 2.All positive plates 10 are all arranged in order according to the order of positive plate 10, negative plate 11, positive plate 10, negative plate 11 with negative plate 11, and all electrode groups are evenly distributed in the both sides of described stirring rake 8 simultaneously, in the both sides of stirring rake 8, have respectively two electrode groups.Each electrode group middle-jiao yang, function of the spleen and stomach pole plate 10 and negative plate 11 spacing 1～2cm, current density 40～60mA/cm
2, voltage 6～10V, pole plate size 300mm * 150mm * 1mm, cathode-anode plate Area Ratio is 1:1.
In cobble bed course 5, be provided with inlet pipe 14, stirring rake drive unit 3 comprises motor and speed reduction unit; Described stirring rake 8 is connected with motor by speed reduction unit.On housing 1 and at water chamber 4 places, be provided with rising pipe 13.
In the utility model, the filler in packing layer 6 is iron filings, and thickness is 200mm, and particle diameter 1～5mm needs before use through dilute sulphuric acid and clean water washing, to remove its surperficial dirt and zone of oxidation.Thickness 100 ~ the 150mm of cobble bed course 5, the particle diameter 5～10mm of cobble in cobble bed course 5.Motor and speed reduction unit are connected with stirring rake 8, for percolate is mixed, fully flocculate, the reaction such as oxidation.Inlet pipe 14 is positioned in the middle of cobble bed course 5, and inlet pipe 14 provides air source of the gas by gas blower.Positive plate 10 adopts RuO
2-IrO
2-TiO
2/ Ti material, negative plate 11 adopts stainless material.
During use, percolate enters intake antrum 7 through water inlet pipe 12, by regulating knob controlling electrolytic oxidation reaction required voltage and the electric current on rectifier 2, make the strong oxidizer producing in HO that pollutent produces at positive plate 108 brine electrolysis and electrolytic process (as CLO
-deng) effect under carry out oxygenolysis.Meanwhile, open motor and speed reduction unit stirring rake 8 is rotated, and by inlet pipe 14 aerations, filler is contacted with the pollutent in percolate, a series of physical-chemical reaction occurs, generate the coagulating agent of one or more nascent states and the oxygenant of nascent state.The multiple physics chemical action such as electrolysis like this, flocculation, absorption, catalyzed oxidation, complexing, displacement, air supporting, filtration can be carried out simultaneously in oxidizing, flocculating multiple-hearth device, thereby the pollutent in percolate is removed rapidly.After packing layer 6 filtrations are saturated, need to carry out back flushing regeneration, while carrying out back flushing, device rising pipe 13 doubles as the water inlet pipe 12 of back flushing, and device water inlet pipe 12 doubles as the water shoot of back flushing.Percolate is after treatment by rising pipe 13 qualified discharges or carry out the biology in-depth processing of next stage.
The percolate oxidizing, flocculating multiple-hearth device that the utility model provides, integrate catalyzed oxidation, flocculation, filtration, absorption, complexing, air supporting, permutation function, good to the removal effect of ammonia nitrogen, COD, colourity, to the clearance of ammonia nitrogen, colourity, can reach more than 90%, to the clearance of COD, heavy metal ion, can reach more than 80%, greatly improve the biodegradability of percolate; And plant automation degree is high, and floor space is little, and processing efficiency is high, and cost is lower, and equipment is simple, system stability, operational management is convenient.
In addition to the implementation, all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (10)
1. the oxidizing, flocculating multiple-hearth device for percolate, it is characterized in that, comprise housing (1), rectifier (2), stirring rake drive unit (3), in housing (1), be provided with successively from the bottom to top water chamber (4), cobble bed course (5), packing layer (6) and intake antrum (7); In intake antrum (7), be provided with stirring rake (8) and two arrays of electrodes group at least; In cobble bed course (5), be provided with inlet pipe (14), described rectifier (2), stirring rake drive unit (3) are located at the outside of housing (1); Described stirring rake (8) is connected with stirring rake drive unit (3); Each electrode group is all connected with rectifier (2).
2. a kind of oxidizing, flocculating multiple-hearth device for percolate according to claim 1, is characterized in that, between described cobble bed course (5) and water chamber (4), sieve plate (9) is installed.
3. a kind of oxidizing, flocculating multiple-hearth device for percolate according to claim 1, is characterized in that the thickness 100 ~ 150mm of described cobble bed course (5), the particle diameter 5～10mm of cobble.
4. a kind of oxidizing, flocculating multiple-hearth device for percolate according to claim 1, is characterized in that, described packing layer (6) filler is iron filings, and its thickness is 200 ~ 300mm, the particle diameter 1～5mm of iron filings.
5. a kind of oxidizing, flocculating multiple-hearth device for percolate according to claim 1, is characterized in that, all electrode groups are evenly distributed in the both sides of described stirring rake (8).
6. a kind of oxidizing, flocculating multiple-hearth device for percolate according to claim 1 or 5, it is characterized in that, described in each, electrode group comprises positive plate (10) and negative plate (11), all positive plates (10) are all connected with the positive pole on rectifier (2), and all negative plates (11) are all connected with the negative pole on rectifier (2).
7. a kind of oxidizing, flocculating multiple-hearth device for percolate according to claim 6, is characterized in that, described positive plate (10) adopts RuO
2-IrO
2-TiO
2/ Ti material, described negative plate (11) adopts stainless material.
8. a kind of oxidizing, flocculating multiple-hearth device for percolate according to claim 6, is characterized in that, described positive plate (10) and negative plate (11) spacing 1～2cm, current density 40～60mA/cm
2, voltage 6～10V, pole plate size 300mm * 150mm * 1mm, cathode-anode plate Area Ratio is 1:1.
9. a kind of oxidizing, flocculating multiple-hearth device for percolate according to claim 6, is characterized in that, all positive plates (10) are all arranged in order according to the order of positive plate (10), negative plate (11) with negative plate (11).
10. a kind of oxidizing, flocculating multiple-hearth device for percolate according to claim 1, is characterized in that, described electrode group has four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033116.0U CN203781882U (en) | 2014-01-20 | 2014-01-20 | Oxidation-flocculation complex bed device for landfill leachate |
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|---|---|---|---|
| CN201420033116.0U CN203781882U (en) | 2014-01-20 | 2014-01-20 | Oxidation-flocculation complex bed device for landfill leachate |
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|---|---|
| CN203781882U true CN203781882U (en) | 2014-08-20 |
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ID=51318090
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|---|---|---|---|
| CN201420033116.0U Expired - Lifetime CN203781882U (en) | 2014-01-20 | 2014-01-20 | Oxidation-flocculation complex bed device for landfill leachate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016076857A1 (en) * | 2014-11-12 | 2016-05-19 | Global Water Holdings, Llc | Electrolytic cell with advanced oxidation process and electro catalytic paddle electrode |
| CN106430433A (en) * | 2016-09-09 | 2017-02-22 | 沈阳工业大学 | Internal circulation type electrochemical organic wastewater treatment device |
| CN111229789A (en) * | 2020-03-09 | 2020-06-05 | 杨桂英 | Landfill leachate treatment facility |
-
2014
- 2014-01-20 CN CN201420033116.0U patent/CN203781882U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016076857A1 (en) * | 2014-11-12 | 2016-05-19 | Global Water Holdings, Llc | Electrolytic cell with advanced oxidation process and electro catalytic paddle electrode |
| CN107108284A (en) * | 2014-11-12 | 2017-08-29 | 全球水资源控股有限责任公司 | Utilize advanced oxidation processes and the electrolytic cell of electro-catalysis paddle electrode |
| CN106430433A (en) * | 2016-09-09 | 2017-02-22 | 沈阳工业大学 | Internal circulation type electrochemical organic wastewater treatment device |
| CN106430433B (en) * | 2016-09-09 | 2022-12-13 | 沈阳工业大学 | Internal circulation type electrochemical organic waste water treatment device |
| CN111229789A (en) * | 2020-03-09 | 2020-06-05 | 杨桂英 | Landfill leachate treatment facility |
| CN111229789B (en) * | 2020-03-09 | 2021-01-26 | 宁夏环保集团有限责任公司 | Landfill leachate treatment facility |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 211100 No. 280 Kaiyuan Road, Jiangning Science Park, Jiangsu, Nanjing Patentee after: NANJING WONDUX ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 211100 No. 280 Kaiyuan Road, Jiangning Science Park, Jiangsu, Nanjing Patentee before: NANJING WONDERS ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |