CN209522653U - A kind of refuse landfill and oxygen repair system - Google Patents
A kind of refuse landfill and oxygen repair system Download PDFInfo
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- CN209522653U CN209522653U CN201822262107.XU CN201822262107U CN209522653U CN 209522653 U CN209522653 U CN 209522653U CN 201822262107 U CN201822262107 U CN 201822262107U CN 209522653 U CN209522653 U CN 209522653U
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Abstract
The utility model discloses a kind of refuse landfill and oxygen repair systems, including the horizontal well of recharge, inclined inverted well, leachate equalization basin, nitrification tank, aerator, submersible sewage pump, the bottom of landfill waste field is connected to the leachate equalization basin, the leachate equalization basin is connected to nitrification tank, and aerator and submersible sewage pump are equipped in nitrification tank, and the upper layer of landfill waste field is arranged in the horizontal well of recharge, and it is evenly equipped with multiple, the horizontal well of recharge is the horizontal traverse furrow of width 0.5m, high 0.5m, and lower layer is laid with rubble.Construction cost is low, and low energy consumption, and using effect is good.
Description
Technical field
The utility model belongs to garbage loading embeading processing unit technical field more particularly to a kind of refuse landfill and oxygen reparation
System.
Background technique
The yield of China's domestic waste is huge, and main processing ways are to fill at this stage, in domestic waste
Kitchen garbage occupies higher specific gravity, and kitchen garbage moisture content is high, is rich in organic matter, generates greatly in landfill yard through anaerobic degradation
Measure methane, COD and ammonia nitrogen.Along with the plurality of sanitary filling field in China is built, field is lack of standardization, and facility is old, and anaerobic stabilization
Change the time for generally requiring many decades, thus forms landfill gas leakage and the big common fault of high concentration leachate contamination two.Landfill gas
Pollution be mainly CH4Greenhouse effects and H2The diffusion of the foul gas such as S, and denitrification process can partially replace methane phase
Reaction；The COD and ammonia nitrogen of high concentration are rich in landfill percolate, cost is high if by the processing of traditional wastewater disposal options,
Denitrification will be carried out after ammonia nitrogen short distance nitration using COD as carbon source, then can synchronize removal COD and ammonia nitrogen.Oxygen is pressed in refuse landfill
The spread condition of gas is from top to bottom roughly divided into aerobic microbiological area, facultative microbe area and anaerobe area.Traditional fills out
Burying field mainly leans on the slow fermentative degradation of anaerobe to carry out very long stabilisation, and anaerobic fermentation be easy to cause sour product
It is tired, there is certain inhibiting effect to reaction.The recovery technique of refuse landfill at present mainly passes through the measures such as ventilation and strengthens
The decomposition of oxygen animalcule substantially shortens the Landfill Stabilization Rate time, and by methane chemical recycling of carbon dioxide, but this mode
There are high construction cost, the drawbacks such as energy consumption is high.The de- of landfill percolate recharge is concentrated on to the research and utilization of facultative microbe
In nitrogen effect, nitrification leachate recirculation landfill yard may advantageously facilitate and the growth and breeding of oxygen layer denitrifying bacteria, quantity ratio
Conventional leachate recirculation fills high 1~3 order of magnitude of field system, effective while promoting garbage degradation and Landfill Stabilization Rate
Inhibit landfill yard methane release.At present to the application of the in-situ denitrification of facultative microbe mainly over-the-counter nitrification, recirculation loading and
In treatment effect research, rarely has to the recharge facility of large-scale application on landfill yard and be related to.
Summary of the invention
Place in order to overcome the above-mentioned deficiencies of the prior art, the utility model provide a kind of refuse landfill and oxygen reparation system
System, construction cost is low, and low energy consumption, and using effect is good.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of refuse landfill and oxygen repair system,
Including the horizontal well of recharge, inclined inverted well, leachate equalization basin, nitrification tank, aerator, submersible sewage pump, the bottom of landfill waste field with
The leachate equalization basin connection, the leachate equalization basin are connected to nitrification tank, and aerator and submersible sewage pump, institute are equipped in nitrification tank
State recharge horizontal well and the upper layer of landfill waste field be set, and be evenly equipped with it is multiple, the horizontal well of recharge be width 0.5m, the level of high 0.5m
Traverse furrow, laid inside rubble, centre are equipped with recharge transverse tube, have aperture below recharge transverse tube, recharge transverse tube one end is mentioned with percolate
Riser connection, it is closed at one end；The horizontal well of recharge is connected with multiple inclined inverted wells obliquely, and it is oblique to be equipped with recharge in inclined inverted well
Pipe, the upper end of recharge inclined tube are connected to recharge transverse tube, and recharge inclined tube is equipped with aperture, and surrounding fills rubble, recharge inclined tube bottom end
Closing, top is connected to recharge transverse tube.
In the above-mentioned technical solutions, the recharge transverse tube and recharge inclined tube are the HDPE (high-density polyethylene with aperture
Alkene) pipe, recharge transverse tube one end is connected to the outlet end of submersible sewage pump, closed at one end.
In the above-mentioned technical solutions, the diameter of rubble is greater than the aperture of respective tube in the horizontal well of the recharge and inclined inverted well
Diameter.
In the above-mentioned technical solutions, the uniform staggered two sides for being arranged in recharge transverse tube of the recharge inclined tube, unilateral returns
Filling inclined tube spacing is 8~12m.
In the above-mentioned technical solutions, the angle of the recharge inclined tube and perpendicular is the 45-60 ° of increase with well depth,
Its sphere of action in the horizontal direction is also bigger, but tilt angle is bigger, and the unstability of drilling well difficulty and well also accordingly increases
Add, therefore the angle for tilting inverted well is advisable with 45-60 °.
In the above-mentioned technical solutions, the nitrification microbial inoculum for being 1/1000 added with volume ratio in the nitrification tank.
In the above-mentioned technical solutions, the recirculation loading of the leachate equalization basin 4 is 15~50L/ (m2d).Percolate tune
Section 4 recirculation loading of pond is lower, not yet plays the denitrogenation potentiality of simultaneous oxygen bacterium, excessively high, will affect treatment effect, also results in
Energy waste；With the progress of denitrification reaction, then in the percolate that filters out, ammonia nitrogen concentration can be gradually decreased, and should periodically be increased
Leachate recirculation load.
The beneficial effects of the utility model are:
1. compared to the dotted diffusion of traditional inverted well, the horizontal well of recharge disclosed by the utility model and inclination inverted well knot
Conjunction forms planar diffusion, is able to achieve all standing diffusion of landfill yard recharge percolate；
2. most of nitrification percolate is directly sent to refuse landfill aerobic area by the present apparatus, while percolate is also simultaneous oxygen
Zone carrys out dissolved oxygen, promotes the progress of reaction.
Detailed description of the invention
Fig. 1 is utility model device cross-sectional structure schematic diagram.
Fig. 2 is the utility model overlooking structure diagram.
Wherein: 1, landfill yard rubbish；2, the horizontal well of recharge；3, inclined inverted well；4, leachate equalization basin；5, nitrification tank；6,
Aerator；7, submersible sewage pump；8, recharge transverse tube；9, recharge inclined tube；10, direction is seeped under percolate in pipeline.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the utility model is described in further detail.
A kind of refuse landfill as depicted in figs. 1 and 2 and oxygen repair system, including the horizontal well 2 of recharge, inclined inverted well 3,
Leachate equalization basin 4, nitrification tank 5, aerator 6, submersible sewage pump 7, the bottom of landfill waste field 1 and the leachate equalization basin 4 connect
Logical, which is connected to nitrification tank 5, and aerator 6 and submersible sewage pump 7 are equipped in nitrification tank 5, and the horizontal well 2 of recharge is set
The upper layer in landfill waste field 1 is set, and is evenly equipped with multiple, recharge transverse tube 8 is equipped in the horizontal well of recharge 2, the horizontal well 2 of recharge is connected with more
A inclined inverted well 3 obliquely, inclined inverted well 3 is interior to be equipped with recharge inclined tube 9, and the upper end of recharge inclined tube 9 and recharge transverse tube 8 connect
Logical, the water outlet of submersible sewage pump 7 is connected to recharge transverse tube 8.Landfill waste floor is divided into three areas from top to bottom, respectively aerobic zone,
Aerobic area and anaerobic zone, anaerobic zone bottom percolate guide to leachate equalization basin.
In the above-mentioned technical solutions, the recharge transverse tube 8 and recharge inclined tube 9 are the HDPE pipe with aperture.Recharge transverse tube
In the horizontal well of recharge, there are aperture, 5~10mm of opening diameter, aperture spacing 40cm, recharge transverse tube one end and submersible sewage pump in lower section
Outlet end connection, it is closed at one end.
The opening diameter of recharge inclined tube 9 is 5mm, aperture 10~15cm of spacing, is located at slant well middle position, surrounding filling
Partial size 20mm rubble, 9 bottom end closure of recharge inclined tube.
In the above-mentioned technical solutions, the diameter of rubble is greater than the aperture of respective tube in the horizontal well of the recharge and inclined inverted well
Diameter.It avoids rubble from blocking recharge pipeline, influences leachate recirculation.
In the above-mentioned technical solutions, the uniform staggered two sides for being arranged in recharge transverse tube 8 of the recharge inclined tube 9.So both
Recharge percolate can utmostly be optimized to landfill yard and the diffusion effect of oxygen layer, and project amount and material use can be reduced
Amount.
The horizontal well spacing of recharge is advisable with 3 times that tilt recharge well depth, two groups of inclination inverted wells between the two adjacent horizontal wells of recharge
Also staggered, it not only can utmostly optimize recharge percolate in this way to landfill yard and the diffusion effect of oxygen layer, but also can subtract
Few project amount and material utilization amount；
In the above-mentioned technical solutions, the angle of the recharge inclined tube 9 and perpendicular is 45-60 °.In this way vertical deep
Spend it is constant in the case where, with the increase of well depth, sphere of action in the horizontal direction is also bigger, but tilt angle is bigger,
Drilling well difficulty and the unstability of well are also increase accordingly, therefore the angle for tilting inverted well is advisable with 45-60 °.
In the above-mentioned technical solutions, the nitrification microbial inoculum for being 1/1000 added with volume ratio in the nitrification tank 5.
In the above-mentioned technical solutions, the recirculation loading of the leachate equalization basin 4 is 15~50L/ (m2d).Percolate tune
Section 4 recirculation loading of pond is lower, not yet plays the denitrogenation potentiality of simultaneous oxygen bacterium, excessively high, will affect treatment effect, also results in
Energy waste；With the progress of denitrification reaction, then in the percolate that filters out, ammonia nitrogen concentration can be gradually decreased, and should periodically be increased
Leachate recirculation load.
With a long 50m, for the msw landfill of high 12m, the horizontal well 2 of 3 parallel recharges is arranged at top in wide 50m,
The long 40m of the horizontal well of every recharge, width 0.5m, high 0.5m, spacing 15m.Rubble is laid in the horizontal well of recharge, diameter is placed in middle position
It is managed for the HDPE of 100mm, i.e. recharge transverse tube 8.8 lower section uniform pore openings of recharge transverse tube, opening diameter 10mm, aperture spacing are
The a little higher than end in 40cm, HDPE water inlet tube end, endcapped.
Angle between inclined inverted well and horizontal plane is 37 °, well depth 5m, on the longitudal section vertical with recharge transverse tube, tiltedly
Depth is 3m, lateral length 4m to formula inverted well in the vertical direction.Inclined inverted well hole diameter is 30cm, therebetween position
The HDPE pipe of diameter 50mm, as recharge inclined tube 9, uniform pore openings below tube wall, opening diameter 10mm, aperture spacing are installed
15cm, the pipe external space are filled with the rubble of partial size 20mm；It is connected to below 9 upper end of recharge inclined tube and recharge transverse tube in the horizontal well of recharge,
Endcapped.
The inclined inverted well ipsilateral positioned at the horizontal well of same recharge, spacing 10m, i.e., from the every 5m setting of the horizontal well water inlet end of recharge
One inclined inverted well, it is successively staggered in the two sides Heng Jing.
The operation of system: nitrification processing first is carried out to the percolate of collection, the percolate that refuse landfill 1 is oozed out is because of rubbish
The difference and the differences in garbage loading embeading age of component and change, storage or appropriateness are diluted to certain concentration range in conditioning tank
Afterwards, nitrification tank is gone to；Then, percolate carries out short distance nitration reaction in nitrification tank, is filled by aerator to percolate
Oxygen, 1/1000 or so addition nitrification microbial inoculum, accelerates ammonium oxidation to nitrite anions by volume, and bed mud precipitating separates nitrification and seeps
Filtrate；Percolate will be nitrified with submersible sewage pump again and is promoted to backflow device at the top of refuse landfill, and nitrification percolate passes through recharge pipe
It penetrates into junk-heap body, COD and ammonia nitrogen degrade through aerobic microbiological and facultative microbe and realize that simultaneous denitrification removes carbon.Initial stage diafiltration
Liquid recirculation loading is 15L/ (m2D), with the progress of denitrification reaction, then in the percolate that filters out, ammonia nitrogen concentration can be gradually decreased,
Periodically increase leachate recirculation load according to pollutant concentration in percolate.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.
Claims (6)
1. a kind of refuse landfill and oxygen repair system, it is characterized in that: including the horizontal well of recharge, inclined inverted well, percolate adjusting
Pond, nitrification tank, aerator, submersible sewage pump, the bottom of landfill waste field are connected to the leachate equalization basin, the leachate equalization basin
It being connected to nitrification tank, aerator and submersible sewage pump is equipped in nitrification tank, the upper layer of landfill waste field is arranged in the horizontal well of recharge, and
It is evenly equipped with multiple, horizontal traverse furrow of the horizontal well of recharge for width 0.5m, high 0.5m, interior laying rubble, centre is equipped with recharge transverse tube, time
Filling below transverse tube has aperture, and recharge transverse tube one end is connect with percolate riser, closed at one end；The horizontal well of recharge is connected with multiple oblique
Downward inclined inverted well, inclined inverted well is interior to be equipped with recharge inclined tube, and the upper end of recharge inclined tube is connected to recharge transverse tube, and recharge is oblique
Pipe is equipped with aperture, and surrounding fills rubble, and recharge inclined tube bottom end closure, top is connected to recharge transverse tube.
2. refuse landfill according to claim 1 and oxygen repair system, it is characterized in that: the horizontal well of recharge and inclined inverted well
The diameter of interior rubble is greater than the opening diameter of respective tube.
3. refuse landfill according to claim 1 to 2 and oxygen repair system, it is characterized in that: the recharge inclined tube is equal
The even staggered two sides for being arranged in recharge transverse tube, unilateral recharge inclined tube spacing are 8~12m.
4. refuse landfill according to claim 1 and oxygen repair system, it is characterized in that: the recharge inclined tube is put down with vertical
The angle in face is 45-60 °.
5. refuse landfill according to claim 1 and oxygen repair system, it is characterized in that: being added with body in the nitrification tank
Product is than the nitrification microbial inoculum for 1/1000.
6. refuse landfill according to claim 1 and oxygen repair system, it is characterized in that: the leachate equalization basin returns
Filling load is 15~50L/ (m2d)。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822262107.XU CN209522653U (en) | 2018-12-30 | 2018-12-30 | A kind of refuse landfill and oxygen repair system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822262107.XU CN209522653U (en) | 2018-12-30 | 2018-12-30 | A kind of refuse landfill and oxygen repair system |
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| CN209522653U true CN209522653U (en) | 2019-10-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111530903A (en) * | 2020-04-27 | 2020-08-14 | 北京市市政四建设工程有限责任公司 | Injection well system for in-situ oxidation remediation of soil |
| CN114394717A (en) * | 2022-01-05 | 2022-04-26 | 天津建昌环保股份有限公司 | In-situ pollution control method for household garbage landfill |
| CN116078777A (en) * | 2022-12-09 | 2023-05-09 | 青岛理工大学 | Covering layer and method for field-enhanced methane oxidation of household garbage landfill |
-
2018
- 2018-12-30 CN CN201822262107.XU patent/CN209522653U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111530903A (en) * | 2020-04-27 | 2020-08-14 | 北京市市政四建设工程有限责任公司 | Injection well system for in-situ oxidation remediation of soil |
| CN114394717A (en) * | 2022-01-05 | 2022-04-26 | 天津建昌环保股份有限公司 | In-situ pollution control method for household garbage landfill |
| CN116078777A (en) * | 2022-12-09 | 2023-05-09 | 青岛理工大学 | Covering layer and method for field-enhanced methane oxidation of household garbage landfill |
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