CN207525850U - The collection system of refuse landfill high concentration percolate - Google Patents
The collection system of refuse landfill high concentration percolate Download PDFInfo
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- CN207525850U CN207525850U CN201721097769.5U CN201721097769U CN207525850U CN 207525850 U CN207525850 U CN 207525850U CN 201721097769 U CN201721097769 U CN 201721097769U CN 207525850 U CN207525850 U CN 207525850U
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Abstract
The utility model discloses a kind of collection systems of refuse landfill high concentration percolate.Collection system includes recharge system and the high concentration leachate collection pool being connected with recharge system, recharge system includes the branch pipe(tube) that main pipeline and Duo Gen are connected with main pipeline, main pipeline is set on the job platform of refuse landfill, branch pipe(tube) is set in the operation slope surface of refuse landfill, more branch pipe(tube) being provided at circumferentially spaced along operation slope surface;Several holes are offered on branch pipe(tube).The percolate CODcr that the collection system is collected into is significantly improved, and carbon-nitrogen ratio and biodegradability can meet the stable operation of biochemical system, greatly save cost, is avoided carbon source using the influence to film process, is improved the stability and efficiency of percolate processing.
Description
Technical field
The utility model belongs to environmental technology field, and in particular to a kind of collection system of refuse landfill high concentration percolate
System.
Background technology
China's house refuse concentrates landfill disposal to be developed in the nineties in last century, and major domestic waste is concentrated at landfill
Reason has more than 10 years history, fills the percolate generated in the process using ripe biochemical treatment+advanced treatment process, utilizes
All kinds of organic pollutions in microbial degradation percolate.In order to ensure Microbial denitrogenation is up to state standards in processing system,
According to Microbial denitrogenation reaction principle, it is typically designed requirement water inlet carbon-nitrogen ratio >=4.And relatively early a batch domestic at present concentrates landfill
The percolate that household refuse landfill sites generate progresses into the aging stage, is mainly shown as raw water CODcr(COD)
It is relatively low, ammonia-nitrogen content is high, biodegradability is poor, carbon-nitrogen ratio < 2, seriously affect stable operation and the treatment effect of biochemical system.
In order to solve the problems, such as that percolate is aging, current each percolate treatment plant mainly takes the mode of additional carbon,
Raw water carbon-nitrogen ratio is improved, carbon source used is mainly glucose and methanol.Glucose is used for a long time, to using film depth science and engineering
The percolate factory of skill influences there is also certain, and it is fast to be mainly reflected in flux depression, be easy to cause stifled film;And methanol is inflammable, has
Poison, danger coefficient is larger, either glucose or methanol, all significantly increases operation cost, is transported to stablizing for percolate factory
Battalion brings great pressure.
In view of the above circumstances, each landfill yard starts to collect high concentration percolate in garbage loading embeading operation field to improve water inlet
Water quality, due to each landfill yard land-fill method with lead that ooze system setting different, effectively collect high concentration percolate and still have centainly
Problem.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies of the prior art and provide a kind of easy to operate, cost
Cheap, stability and high efficiency, the refuse landfill high concentration percolate for being remarkably improved percolate CODcr, carbon-nitrogen ratio and biodegradability
Collection system.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of collection system of refuse landfill high concentration percolate, the collection system include recharge system and with returning
The high concentration leachate collection pool that fill system is connected, the recharge system include the branch pipe that main pipeline and Duo Gen are connected with main pipeline
Road, the main pipeline are set on the job platform of refuse landfill, and the branch pipe(tube) is set in the operation slope surface of refuse landfill,
More branch pipe(tube) being provided at circumferentially spaced along operation slope surface;Several holes are offered on the branch pipe(tube).
In the collection system of above-mentioned refuse landfill high concentration percolate, it is preferred that the branch pipe(tube) is trepanning floral tube,
3~5 holes are opened up on every meter long of branch pipe(tube);The hole shape of the branch pipe(tube) is round or rectangle.
In the collection system of above-mentioned refuse landfill high concentration percolate, it is preferred that the main pipeline and garbage loading embeading
The leachate equalization basin of field is connected, and the high concentration leachate collection pool is connected with the percolation liquid treating system of refuse landfill.
In the collection system of above-mentioned refuse landfill high concentration percolate, it is preferred that the main pipeline is defeated by first
Pump is sent to be connected with the leachate equalization basin of refuse landfill, alternatively, the main pipeline passes through haulage vehicle and refuse landfill
Leachate equalization basin is connected;The high concentration leachate collection pool passes through the second delivery pump and conveyance conduit and refuse landfill
Percolation liquid treating system is connected, alternatively, the high concentration leachate collection pool passes through haulage vehicle and the diafiltration of refuse landfill
Liquid treating system is connected.
In the collection system of the utility model, the refuse landfill is to have filled the refuse landfill of time >=5 year.Rubbish
Low concentration percolate is stored in the leachate equalization basin of rubbish landfill yard.Low concentration percolate is delivered to the work of refuse landfill
Industry scene, by stringing and the recycling mode of trepanning flood irrigation, collection obtains high concentration percolate, the CODcr of low concentration percolate
≤ 4000mg/L, carbon-nitrogen ratio < 4 react ratio B/C≤0.2 of biodegradability, CODcr >=8000mg/ of high concentration percolate
Ratio B/C >=0.5 of biodegradability is reacted in L, carbon-nitrogen ratio >=4.It collects obtained high concentration percolate and is delivered to refuse landfill
Percolation liquid treating system.
CODcr:COD indicates the important parameter of water quality organic contamination degree.
Ammonia nitrogen:Refer in water with free ammonia(NH3)And ammonium ion(NH4 +)Nitrogen existing for form.
Carbon-nitrogen ratio:Carbon and the ratio of nitrogen total amount, appropriate carbon-nitrogen ratio could maintain wastewater biochemical anti-in waste water
The stable operation answered, carbon-nitrogen ratio described in the utility model refer in particular to the ratio of CODcr and total nitrogen.
B/C:BOD5With the ratio of CODcr, reflect the index of wastewater biodegradability.
Trepanning floral tube:The tubes/conduits material in hole has been opened, has been mainly used for the discharge or collection of water in construction building industry, gas,
Depending on design requirement, the utility model is not strict with hole shape for hole shape, size, pitch of holes etc..
The main technical problems to be solved of the utility model are as follows:
(1)It is more long to solve the landfill time limit(>=5 years, preferable 5~15 years)Fresh oozing of generating of household refuse landfill sites
Filtrate collects problem.
(2)High concentration percolate is collected, solves the problems, such as that domestic landfill leachate treatment system carbon-nitrogen ratio is insufficient.
The problem is using the insurmountable main cause of the prior art:The garbage loading embeading time is more long, and heap body is thicker, newly
Fresh percolate is more difficult to enter bottom culvert pipe in junk-heap body.Anaerobic degradation has occurred in percolate during seepage flow, causes
Carbon is relatively low when it enters processing system by culvert pipe, ammonia nitrogen is higher, and carbon-nitrogen ratio is insufficient, it is difficult to directly at progress biochemical system
Reason.
For more than technical problem, the innovative point of the utility model essentially consists in:
(1)High concentration percolate is collected by the method for recharge;
(2)Using the recycling mode in rubbish operation slope surface stringing, trepanning flood irrigation.
Compared with prior art, the utility model has the advantage of:
(1)By using the collection system of the utility model, the percolate CODcr being collected into is significantly improved, carbon-nitrogen ratio and
Biodegradability can meet the stable operation of percolate processing biochemical system, completely instead of the use of additional carbon, greatly
Cost has been saved, while has avoided carbon source and uses the influence brought to film processing system, has improved the stability of percolate processing
And efficiency.
(2)Using low concentration percolate simulated rainfall recharge to heap body, without purchasing other auxiliary materials, on the one hand save into
This, has on the other hand handled part percolate using the collection system, reduces percolation liquid treating system pressure.
(3)Tthe utility model system is arranged on garbage loading embeading scene, and without taking up an area, facility used is water pump and pipeline, is grasped
Make easy, collection efficiency height, strong applicability is conducive to the percolate stabilization processing of aged landfill yard.
Description of the drawings
Fig. 1 is recharge system in the collection system of refuse landfill high concentration percolate in the utility model embodiment 1
Structure arrangement schematic diagram(Or fundamental diagram).
Fig. 2 is recharge system in the collection system of refuse landfill high concentration percolate in the utility model embodiment 1
Branch pipe(tube) front view.
Fig. 3 is recharge system in the collection system of refuse landfill high concentration percolate in the utility model embodiment 1
Branch pipe(tube) sectional view.
Fig. 4 is that the collection system of refuse landfill high concentration percolate is adjusted with percolate in the utility model embodiment 1
Pond, the integral layout schematic diagram of percolation liquid treating system.
Fig. 5 is the process flow chart of the collection method of refuse landfill high concentration percolate in the utility model embodiment 1.
Marginal data:
1st, the percolate of recharge;2nd, main pipeline;3rd, branch pipe(tube);4th, the percolate of exudation;5th, trepanning;6th, percolate is adjusted
Pond;7th, the first delivery pump;8th, high concentration leachate collection pool;9th, conveyance conduit;10th, percolation liquid treating system;11st, garbage loading embeading
Area;12nd, percolate treatment region;13rd, the second delivery pump.
Specific embodiment
The utility model is further described below in conjunction with Figure of description and specific preferred embodiment, but not because
This and limit the scope of protection of the utility model.
Material and instrument employed in following embodiment are commercially available.
Embodiment 1:
The collection system of the refuse landfill high concentration percolate of a kind of the utility model, including recharge system and with returning
The high concentration leachate collection pool 8 that fill system is connected.As shown in Figure 1, recharge system includes a main pipeline 2 and Duo Gen and supervisor
The branch pipe(tube) 3 that road 2 connects, main pipeline 2 are set on the job platform of refuse landfill, and each branch pipe(tube) 3 is set on refuse landfill
In operation slope surface, more being provided at circumferentially spaced along operation slope surface of branch pipe(tube) 3, using a piece branch of every 20 meters settings in the present embodiment
Pipeline 3;Several holes are offered on branch pipe(tube) 3(Dotted line illustrates open-celled structure in figure).The percolate 1 of recharge(I.e. low concentration is percolated
Liquid)After main pipeline 2 and branch pipe(tube) 3, the percolate 4 that is oozed out.
In the present embodiment, as shown in Figures 2 and 3, branch pipe(tube) 3 is trepanning floral tube, and 3 can be opened up on every meter long of branch pipe(tube) 3
~5 holes, the trepanning 5 of branch pipe(tube) 3 is round hole, can also using rectangle opening.
Integral layout schematic diagram residing for the collection system of the present embodiment is as shown in figure 4, leachate equalization basin 6(Also to ooze
Filtrate treatment plant regulating reservoir), collection system, percolation liquid treating system 10 be sequentially connected, wherein collection system is located at garbage loading embeading
Area 11, leachate equalization basin 6 and percolation liquid treating system 10 are located at percolate treatment region 12.Leachate equalization basin 6 is with collecting system
Main pipeline 2 in system passes through the first delivery pump 7(Or haulage vehicle)It is connected, the first delivery pump 7 is placed in leachate equalization basin 6
In.Main pipeline 2 is connected with more branch pipe(tube)s 3, and branch pipe(tube) 3 is connected with high concentration leachate collection pool 8.High concentration leachate collection
Pond 8 passes through the second delivery pump 13 and conveyance conduit 9 and percolation liquid treating system 10(Also it is percolate treatment plant liquid pool)It is connected,
Second delivery pump 13 is placed in percolation liquid treating system 10.High concentration leachate collection pool 8 can also be by haulage vehicle with oozing
Filtrate processing system 10 is connected.
In the present embodiment, the percolate in leachate equalization basin 6 is low concentration percolate.
The operation principle of the collection system of the present embodiment is as follows:
Main pipeline 2 in collection system will be low dense in leachate equalization basin 6 by the first delivery pump 7 or haulage vehicle
Degree percolate is delivered to landfill operation scene, and main pipeline 2 is positioned partially or entirely on landfill operation platform, along operation slope surface circumferential direction
A branch pipe(tube) 3 is arranged from operation slope surface to slope foot direction every a distance, each branch pipe(tube) 3 is connected with main pipeline 2, branch pipe
Road 3 is trepanning floral tube, and percolate is uniformly spread across rubbish surface by the trepanning on branch pipe(tube) 3, penetrates into heap body.Rubbish heap
After body is by recharge, water holding saturation degree increases, and microbial fermentation effect is accelerated, and accelerates the generation and exudation of percolate, highly concentrated
Degree leachate collection pool 8 is set at recharge operation slope surface slope foot, and under the squeezing action of heap body, high concentration percolate can be direct
Into in collecting pit, pump drainage water pump is set in pond(Second delivery pump 13), connect collection conduit(Conveyance conduit 9), directly transport
Percolation liquid treating system 10 is delivered to percolation liquid treating system 10 or by haulage vehicle by high concentration percolate in pond,
So as to complete the collection of high concentration percolate.
It is the application example of the collection system of the utility model below, specially a kind of receipts implemented using the collection system
Diversity method includes the following steps:Low concentration percolate is delivered to the operation field of refuse landfill, is overflow by stringing and trepanning
The recycling mode of filling, collection obtain high concentration percolate.As shown in figure 5, the specific collection process of the present embodiment is:Percolate tune
Recharge scene of the low concentration percolate in pond 6 by pipeline to refuse landfill is saved, is uniformly spread across by surface flood irrigation
Rubbish surface is penetrated into heap body, and under the squeezing action of heap body, high concentration percolate can be directly entered in collecting pit, is received
Collect the high concentration percolate in pond by pipeline to percolation liquid treating system 10, so as to complete the receipts of high concentration percolate
Collection.
In this application example, the recycling mode of stringing and trepanning flood irrigation is realized by the recharge system of collection system,
The structure diagram of the recharge system is as shown in Figure 1:Recharge system is connected including a main pipeline 2 and Duo Gen with main pipeline 2
Branch pipe(tube) 3, main pipeline 2 are set on the job platform of refuse landfill, and each branch pipe(tube) 3 is set on the operation slope surface of refuse landfill
On, more being provided at circumferentially spaced along operation slope surface of branch pipe(tube) 3 can be used a piece branch pipe of every 20 meters of settings and be connected to main pipeline 2.
Several holes are offered on branch pipe(tube) 3(Dotted line illustrates open-celled structure in figure).The percolate 1 of recharge(That is low concentration percolate)Pass through
After main pipeline 2 and branch pipe(tube) 3, the percolate 4 that is oozed out.
In this application example, as shown in Figures 2 and 3, branch pipe(tube) 3 is trepanning floral tube, and usual every meter of long pipeline opens 3~5
Hole, the shape of the trepanning 5 of branch pipe(tube) 3 is circle, can also using rectangle opening.
In this application example, leachate equalization basin 6 of the low concentration percolate from refuse landfill.
In this application example, the high concentration percolate collected is delivered to the percolation liquid treating system of refuse landfill
10。
In this application example, refuse landfill is to fill the refuse landfill of the time limit >=5 year, using this field routine
Typical refuse landfill.
Measure of merit:
High concentration leachate collection is carried out in Changsha sanitary land fill using the collection system of the present embodiment, is adopted
Low concentration percolate in regulating reservoir, CODcr 3000mg/L, ammonia nitrogen 2500mg/L are extracted with immersible pump, carbon-nitrogen ratio approaches
1, B/C is about 0.2.It is uniformly spread across on junk-heap body by the recycling mode of side slope flood irrigation, while takes collection in rubbish slope foot
Pond is collected.Start to store high concentration percolate after recharge 1 day, in collecting pit, CODcr 15000mg/L continue recharge
In the process, CODcr reaches as high as 40000mg/L, is improved more than 12 times compared to percolate in regulating reservoir.Repeatedly implement recharge operation
When, the CODcr of the high concentration percolate of collection can reach 28000mg/L mostly, and ammonia nitrogen value is 2200mg/L, maintains to stablize;It returns
The high concentration percolate carbon-nitrogen ratio collected is filled mostly up to more than 10.The high concentration percolate is directly drawn into percolate processing system
System 10, is fully achieved influent quality requirement, is the stable operation that can ensure that its biochemical system without additional carbon.
The above descriptions are merely preferred embodiments of the present invention, and not the utility model is made in any form
Limitation.Although the utility model is disclosed as above with preferred embodiment, it is not limited to the utility model.It is any ripe
Those skilled in the art is known, in the case of the Spirit Essence and technical solution for not departing from the utility model, all using upper
The methods and technical content for stating announcement is made technical solutions of the utility model many possible changes and modifications or is revised as
With the equivalent embodiment of variation.Therefore, every content without departing from technical solutions of the utility model, the skill according to the utility model
It is new to still fall within this practicality for art any simple modification substantially made to the above embodiment, equivalent replacement, equivalence changes and modification
In the range of the protection of type technical solution.
Claims (4)
1. a kind of collection system of refuse landfill high concentration percolate, which is characterized in that the collection system includes recharge system
System and the high concentration leachate collection pool being connected with recharge system(8), the recharge system include main pipeline(2)With more with
Main pipeline(2)The branch pipe(tube) of connection(3), the main pipeline(2)On the job platform of refuse landfill, the branch pipe(tube)
(3)In the operation slope surface of refuse landfill, more branch pipe(tube)s(3)Along being provided at circumferentially spaced for operation slope surface;The branch pipe
Road(3)On offer several holes.
2. the collection system of refuse landfill high concentration percolate according to claim 1, which is characterized in that the branch pipe
Road(3)For trepanning floral tube, every meter long of branch pipe(tube)(3)On open up 3~5 holes;The branch pipe(tube)(3)Hole shape for circle
Or rectangle.
3. the collection system of refuse landfill high concentration percolate according to claim 1, which is characterized in that the supervisor
Road(2)With the leachate equalization basin of refuse landfill(6)It is connected, the high concentration leachate collection pool(8)With refuse landfill
Percolation liquid treating system(10)It is connected.
4. the collection system of refuse landfill high concentration percolate according to claim 3, which is characterized in that the supervisor
Road(2)Pass through the first delivery pump(7)With the leachate equalization basin of refuse landfill(6)It is connected, alternatively, the main pipeline passes through fortune
Defeated vehicle and the leachate equalization basin of refuse landfill(6)It is connected;The high concentration leachate collection pool(8)Pass through the second conveying
Pump(13)And conveyance conduit(9)With the percolation liquid treating system of refuse landfill(10)It is connected, alternatively, the high concentration percolate
Collecting pit passes through haulage vehicle and the percolation liquid treating system of refuse landfill(10)It is connected.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110761380A (en) * | 2019-10-08 | 2020-02-07 | 贵州西部丽城生态环境发展有限责任公司 | Landfill storehouse end rain sewage diversion system |
CN113109547A (en) * | 2021-04-25 | 2021-07-13 | 福建省地质工程勘察院 | Testing device and testing method for accelerating slope model saturation |
-
2017
- 2017-08-30 CN CN201721097769.5U patent/CN207525850U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110761380A (en) * | 2019-10-08 | 2020-02-07 | 贵州西部丽城生态环境发展有限责任公司 | Landfill storehouse end rain sewage diversion system |
CN113109547A (en) * | 2021-04-25 | 2021-07-13 | 福建省地质工程勘察院 | Testing device and testing method for accelerating slope model saturation |
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