CN205953710U - Landfill leachate preprocessing device - Google Patents
Landfill leachate preprocessing device Download PDFInfo
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- CN205953710U CN205953710U CN201620838774.6U CN201620838774U CN205953710U CN 205953710 U CN205953710 U CN 205953710U CN 201620838774 U CN201620838774 U CN 201620838774U CN 205953710 U CN205953710 U CN 205953710U
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Abstract
The utility model relates to a landfill leachate preprocessing device, including the foam separator, add the medicine reaction, inclined plate settler, foam collecting pit and charge device, the upper portion intercommunication of foam separator has the inlet tube, bubble tube and foam collecting pit intercommunication are passed through to the upper portion of foam separator, the lower part of foam separator is passed through the outlet pipe and is added medicine reaction intercommunication, charge device is respectively through adding the pencil and adding medicine reaction and foam collecting pit intercommunication, add medicine reaction and inclined plate settler intercommunication, inclined plate settler's bottom is equipped with the mud collection and fights, inclined plate settler's top is equipped with the mill weir of external drain pipe. The utility model discloses mainly carry out preliminary treatment through the medicine coagulating sedimentation that adds who goes on in carrying out the foam separation in the foam separator and adding medicine reaction and foam collecting pit, reduce the foam among the landfill leachate, get rid of these simultaneously and exchange the spurging material to for good condition of follow -up biochemical treatment creation.
Description
Technical field
This utility model is related to a kind of percolate pretreatment unit, belongs to field of garbage disposal, is applied to city life
Percolate from garbage filling field of living is processed.
Background technology
Since entering 21 century, China's rapid economic development, city size constantly expands, and urbanization process is constantly accelerated.
However, Municipal Domestic Garbage Output also sharply increases.According to statistics, current China municipal refuse year yield is more than 1.4 hundred million
Ton, and increased with the speed of 8%-10% every year, more than 1.1kg, the only big city such as Beijing, Shanghai is every for daily output quantity of refuse per capita
The house refuse that it produces just reaches 20,000 tons about.China has become rubbish in the world and has surrounded one of country of city most serious.
2012,654, the whole nation the planned city house refuse amount of clearing was 1.57 hundred million t, county town and about 70,000,000 tons of cities and towns,
Amount to 2.2 hundred million tons of rubbish.According to statistics, the percolate of the about daily 40-50 ton of China needs to process.
Landfill leachate treatment is always global problem, is primarily due in percolate contain substantial amounts of difficulty
Biodegradable material, the ammonia nitrogen containing high concentration simultaneously, ammonia nitrogen in high density has suppression to the microorganism in biological treatment process
Side effect, leads to microorganism to be difficult to normal growth.Therefore landfill leachate treatment is focus and the weight of field of environment engineering research
Point.
By analysis, substantial amounts of polypeptide, protein and some surfactant materials are contained in percolate, these
Material easily produces substantial amounts of bubble in the case of having aeration, and the presence of these bubbles has for percolate biological treatment
Serious impact, the stability of impact mud, also affect the environment during landfill leachate treatment simultaneously.How to reduce rubbish
Foam material content in percolate, to reduce its impact to biochemical processing procedure, is that the technology that this patent mainly solves is asked
Topic.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of percolate pretreatment unit, can eliminate
Except the easy foaming substance in percolate, reduce it to the impact during biological treatment percolate, divided by foam
From and coagulation dosing sedimentation integrated, formed a kind of percolate pretreatment unit.
The technical scheme that this utility model solves above-mentioned technical problem is as follows：A kind of percolate pretreatment unit, bag
Include foam separator, dosing reactive tank, tilted plate separator, foam collecting pit and chemicals dosing plant, the top of described foam separator
It is communicated with water inlet pipe, the top of described foam separator is connected with foam collecting pit by foamed pipe, described foam separator
Bottom is connected with dosing reactive tank by outlet pipe, and described chemicals dosing plant is passed through chemical feed pipe respectively and received with dosing reactive tank and foam
Ji Chi connects, and described dosing reactive tank is connected with tilted plate separator, and the bottom of described tilted plate separator is provided with mud collection bucket, institute
The top stating tilted plate separator is provided with the effluent weir of external drain pipe.
Substantial amounts of polypeptide, protein and surfactant materials are contained, these materials are in rubbish in percolate
Belong to refractory organic in percolate, that is, be difficult to by the biodegradation of follow-up Institute of Micro-biology, and the feelings in blast aeration
Substantial amounts of foam can be produced, the presence one side of these foams have impact on the effect of subsequent biochemical process, also have impact on rubbish under condition
Rubbish percolate treatment facility surrounding enviroment.This utility model mainly passes through to carry out foam separation and dosing reaction in foam separator
The dosing coagulating sedimentation carrying out in groove and foam collecting pit carries out pretreatment, reduces the foam in percolate, removes simultaneously
These are also easy to produce foam material, thus process for subsequent biochemical creating a good condition.
The beneficial effects of the utility model are：The purpose of this utility model is the things such as the easy foaming in removal percolate
Matter, reduces the COD in percolate, mitigates its impact to subsequent biological treatment and advanced treating.By analysis these
The material of easily foaming is mainly containing substantial amounts of polypeptide, protein-based and surfactant materials in percolate, leads to
Crossing foam separation makes these materials separate from percolate in the form of foam, the foam after separating due to
It is unstable, and easily forms liquid, and adding the medicaments such as Polyferric Sulfate or poly-aluminium in this partially liq makes these easy foaming substances
So that this moieties therein is removed after mixing with above-mentioned mud after coagulating sedimentation after coagulating, and directly arrange
Enter sludge treating system；And these materials in the percolate separated without foam separator are through follow-up coagulation
Reaction removes further, and after the dosing coagulating sedimentation in foam separator and dosing reactive tank and foam collecting pit, rubbish oozes
These materials in filtrate can be removed, and reduces its impact to subsequent biochemical process.
On the basis of technique scheme, this utility model can also do following improvement.
Further, described water inlet pipe stretches into the top in foam separator, and described water inlet pipe is provided with multiple shower nozzles.
Beneficial effect using above-mentioned further scheme is that top in foam separator is stretched in one end of water inlet pipe, another
End connects percolate collecting pit, and percolate enters in foam separator from water inlet pipe, by multiple on water inlet pipe
Shower nozzle dispersion sprays it is preferred that multiple shower nozzle is evenly distributed on water inlet pipe, average for percolate can be dispersed in foam
Separator, improves the efficiency of foam separation.
Further, the bottom of described foam separator is communicated with the aeration tube with control valve, described foam separator
Interior middle part is provided with the granulated filler for cutting bubble.
Beneficial effect using above-mentioned further scheme is the specific mode of foam separation, is by aeration and to coordinate granule
Come to realize, the aeration tube from bottom for the gas enters shape filler, aeration tube can be uniformly arranged multiple aeration heads, gas is upwards
By the filler at middle part, the downward gas mixing of percolate, form foam on top, aeration process gas-water ratio controls in 10-
20:1, the foam of generation enters foam collecting pit by foamed pipe, and the foam that this process produces easily becomes liquid, becomes liquid
Amount afterwards accounts for the 1/10-1/20 that percolate enters water inventory.
Further, the effluent trough that is arranged on foam separator lateral wall, vertical being provided with described effluent trough are also included
Water level regulation plate, effluent trough is divided into inhalant region and the exhalant region that top communicates by described water level regulation plate, and described outlet pipe includes
First outlet pipe and the second outlet pipe, one end of described first outlet pipe connects the bottom of described foam separator, and the other end is even
Logical inhalant region, one end connection exhalant region of described second outlet pipe, the other end connects dosing reactive tank.
Further, the height of described water level regulation plate is less than the height of described effluent trough, and the height of water level regulation plate can
Adjust.
Beneficial effect using above-mentioned further scheme is that foam separator can pass through effluent trough and water level regulation plate control
Liquid level in foam separator processed, the liquid after separation in foam separator enters in effluent trough from its underpart, in water
Under the regulation and control of position adjustable plate, enter dosing reactive tank, in effluent trough, liquid level is equal with the liquid level in foam separator,
And controlled by the height of water level regulation plate.Effluent trough can be arranged on the side wall of foam separator, and integral structure is saved into
Basis and area occupied.
Further, it is provided with agitating device in described dosing reactive tank and foam collecting pit.
Beneficial effect using above-mentioned further scheme is that chemicals dosing plant adds into dosing reactive tank and foam collecting pit
Medicament be Polyferric Sulfate or poly-aluminium, Polyferric Sulfate or poly-aluminium add pharmaceutical quantities and control in 100mg/L-200mg/L, or according to reality
Situation determines, after adding of agent, the response time controls in 15-30min.And phase is set in dosing reactive tank and foam collecting pit
The agitating device answered, can preferably promote to precipitate the carrying out of coagulating.
Further, described dosing reactive tank and foam collecting pit are separately positioned on the two ends of described tilted plate separator.
Further, the described bottom of dosing reactive tank is connected with the bottom of tilted plate separator.
Further, the process hydraulic load of tilted plate separator can be according to 4-10m3/ h designs.
Further, described mud collection bucket is communicated with the discharge pipeline with control valve, and described discharge pipeline and foam are collected
Chi Jun connects sludge treating system.
Beneficial effect using above-mentioned further scheme is the mud that tilted plate separator precipitates, and enters mud collection bucket
Storage, periodically enters sludge treating system by discharge pipeline and is processed.Mud collection bucket can be set up in parallel multiple, positioned at oblique
The bottom of plate depositor, in funnel-form, lower end is respectively communicated with corresponding discharge pipeline.In foam collecting pit after coagulating sedimentation
Mud is directly discharged into sludge treating system, handles together.
Further, the bottom of described foam separator, dosing reactive tank and foam collecting pit is all communicated with control valve
The blow-down pipe of door.
Beneficial effect using above-mentioned further scheme is when needing be carried out, overhaul or encounter accident, can
To utilize blow-down pipe, the liquid in whole system is all bled off, is processed accordingly.
Brief description
Fig. 1 is this utility model structural representation.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, foam separator, 11, water inlet pipe, 12, aeration tube, 13, filler, 14, outlet pipe, 15, foamed pipe, 16, water outlet
Groove, 2, dosing reactive tank, 3, tilted plate separator, 31, mud collection bucket, 32, effluent weir, 33, discharge pipeline, 4, foam collecting pit,
5th, chemical feed pipe, 6, agitating device, 7, blow-down pipe.
Specific embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example is served only for explaining this practicality
New, it is not intended to limit scope of the present utility model.
As shown in figure 1, this utility model is related to a kind of percolate pretreatment unit, including foam separator 1, dosing
Reactive tank 2, tilted plate separator 3, foam collecting pit 4 and chemicals dosing plant, the top of described foam separator 1 is communicated with water inlet pipe
11, the top of described foam separator 1 is connected with foam collecting pit 4 by foamed pipe 15, and the bottom of described foam separator 1 leads to
Cross outlet pipe 14 to connect with dosing reactive tank 2, described chemicals dosing plant is passed through chemical feed pipe 5 respectively and received with dosing reactive tank 2 and foam
Collection pond 4 connects, and described dosing reactive tank 2 tilted plate separator 3 connects, and the bottom of described tilted plate separator 3 is provided with mud collection bucket
31, the top of described tilted plate separator 3 is provided with the effluent weir 32 of external drain pipe.This utility model mainly passes through foam separator
The dosing coagulating sedimentation carrying out carrying out in 1 in foam separation and dosing reactive tank 2 and foam collecting pit 4 carries out pretreatment, reduces
Foam in percolate, removes these simultaneously and is also easy to produce foam material, thus process for subsequent biochemical create one good
Condition.
Described water inlet pipe 11 stretches into the top in foam separator 1, and described water inlet pipe 11 is provided with multiple shower nozzles.Water inlet pipe
The top in foam separator 1 is stretched in 11 one end, and the other end connects percolate collecting pit, and percolate is from water inlet pipe
11 enter in foam separator 1, are sprayed it is preferred that multiple shower nozzle is uniformly distributed by the multiple shower nozzle dispersions on water inlet pipe 11
On water inlet pipe 11, can be by the efficiency being dispersed in foam separator 1, improving foam separation average for percolate.
The bottom of described foam separator 1 is communicated with the aeration tube 12 with control valve, in described foam separator 1
Middle part is provided with the granulated filler 13 for cutting bubble.The specific mode of foam separation, is by aeration and to coordinate graininess
Come to realize, gas enters filler 13 from the aeration tube 12 of bottom, and aeration tube 12 can be uniformly arranged multiple aeration heads, gas
Upwardly through the filler 13 at middle part, percolate downwards and gas mixing, forms foam, aeration process gas-water ratio control on top
System is in 10-20:1, the foam of generation enters foam collecting pit 4 by foamed pipe 15, and the foam that this process produces easily becomes liquid
Body, becomes the amount after liquid and accounts for the 1/10-1/20 that percolate enters water inventory.
Described percolate pretreatment unit also includes the effluent trough 16 being arranged on foam separator 1 lateral wall, institute
State vertical in effluent trough 16 be provided with water level regulation plate, effluent trough 16 is divided into the inhalant region that top communicates by described water level regulation plate
And exhalant region, described outlet pipe 14 includes the first outlet pipe and the second outlet pipe, described in one end connection of described first outlet pipe
The bottom of foam separator 1, the other end connects inhalant region, one end connection exhalant region of described second outlet pipe, and the other end connects
Dosing reactive tank 2.The height of described water level regulation plate is less than the height of described effluent trough 16, and the height of water level regulation plate can
Adjust.Foam separator 1 can control the liquid level in foam separator 1 by effluent trough 16 and water level regulation plate, and foam divides
Enter in effluent trough 16 from the liquid after the separation in device 1 from its underpart, under the regulation and control of water level regulation plate, enter dosing reaction
Groove 2, in effluent trough 16, liquid level is equal with the liquid level in foam separator 1, and is controlled by the height of water level regulation plate.
Effluent trough 16 can be arranged on the side wall of foam separator 1, integral structure, cost-effective and area occupied.
It is provided with agitating device 6 in described dosing reactive tank 2 and foam collecting pit 4.Chemicals dosing plant is to dosing reactive tank 2
It is Polyferric Sulfate or poly-aluminium with the medicament adding in foam collecting pit 4, Polyferric Sulfate or poly-aluminium add pharmaceutical quantities and control in 100mg/L-
200mg/L, or determine, after adding of agent, the response time controls in 15-30min according to practical situation.And in dosing reactive tank 2
With the corresponding agitating device 6 of setting in foam collecting pit 4, can preferably promote to precipitate the carrying out of coagulating.
Described dosing reactive tank 2 and foam collecting pit 4 are separately positioned on the two ends of described tilted plate separator 3.Described dosing
The bottom of reactive tank 2 is connected with the bottom of tilted plate separator 3.The process hydraulic load of tilted plate separator 3 can be according to 4-10m3/
H designs.
Described mud collection bucket 31 is communicated with the discharge pipeline 33 with control valve, described discharge pipeline 33 and foam collecting pit
4 all connect sludge treating system.The mud that tilted plate separator 3 precipitates, enters mud collection bucket 31 and stores, and periodically passes through row
Mud pipe 33 enters sludge treating system and is processed.Mud collection bucket 31 can be set up in parallel multiple, positioned at tilted plate separator 3
Bottom, in funnel-form, lower end is respectively communicated with corresponding discharge pipeline 33.In foam collecting pit 4, the mud after coagulating sedimentation is straight
Run in into sludge treating system, handle together.
The bottom of described foam separator 1, dosing reactive tank 2 and foam collecting pit 4 is all communicated with control valve
Blow-down pipe 7.When needing be carried out, overhaul or encounter accident, it is possible to use blow-down pipe 7, by the liquid in whole system
Body all bleeds off, and is processed accordingly.
Carry out percolate pretreatment, concrete technology flow process using percolate pretreatment unit of the present utility model
As follows：Percolate first passes through water pump and enters foam separator 1 by water inlet pipe 11, is added with and cuts in foam separator 1
Cut the granulated filler 13 of bubble, enter effluent trough 16 after the water outlet of bottom, the percolate entrance dosing of effluent trough 16 is anti-
Answer groove 2, setting agitating device 6 in dosing reactive tank 2, so that medicament is mixed, the percolate after dosing reactive tank 2
Enter tilted plate separator 3 from dosing reactive tank 2 bottom, tilted plate separator 3 is provided with mud collection bucket 31, mud collection bucket 31 bottom
Portion is provided with the discharge pipeline 33 of control valve, periodic exhaustion mud to sludge treating system, and percolate is after precipitation
Supernatant flow by gravity, to effluent weir 32, is discharged by the drain pipe of effluent weir 32.And the bubble producing in foam separator 1
Foam enters, by foamed pipe 15, the other end of foam collecting pit 4 that tilted plate separator 3 is with respect to dosing reactive tank 2, wherein
Foam becomes liquid, after adding medicament, is discharged directly to sludge treating system.
Concrete process step is as follows：
(1) percolate is delivered to foam separator 1 through water pump by water inlet pipe 11, goes out rubbish by Air Exposure stripping
Foam in rubbish percolate, aeration process gas-water ratio controls in 10-20:1；The foam producing enters foam by foamed pipe 15 and receives
Collection pond 4.The foam that this process produces easily becomes liquid, becomes the amount after liquid and accounts for the 1/10-1/ into water garbage filter liquid measure
20；
(2) percolate after foam separation enters dosing reactive tank 2, and the medicament adding is Polyferric Sulfate or poly-aluminium, gathers
Ferrum or poly-aluminium add pharmaceutical quantities and control in 100mg/L-200mg/L, or are determined according to practical situation, react after adding of agent
Time control is in 15-30min；
(3) through dosing reacted percolate entrance sloping plate deposition, 3, the process hydraulic load of tilted plate separator 3
According to 4-10m3/ h designs, and precipitating sludge enters mud collection bucket 31, periodically enters Treatment of Sludge by discharge pipeline 33 after collection
System is processed, and inclined-plate clarifying basin 3 is by the drain pipe water outlet of effluent weir 32；
(4) foam that foam separation produces enters the foam collecting pit 4 of inclined-plate clarifying basin one end, in foam collecting pit 4
Add medicament, the medicament mainly adding is Polyferric Sulfate or poly-aluminium, adds pharmaceutical quantities and controls in 100mg/L-200mg/L, or root
Determine, after adding of agent, the response time controls in 15-30min according to practical situation；
(5) foam separation produce foam foam collecting pit 4 in through dosing react after be directly entered Treatment of Sludge system
System, and the mud producing with above-mentioned (3) is mixed together process.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvement made etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (10)
1. a kind of percolate pretreatment unit is it is characterised in that include foam separator (1), dosing reactive tank (2), tiltedly
Plate depositor (3), foam collecting pit (4) and chemicals dosing plant, the top of described foam separator (1) is communicated with water inlet pipe (11),
The top of described foam separator (1) is connected with foam collecting pit (4) by foamed pipe (15), described foam separator (1)
Bottom is connected with dosing reactive tank (2) by outlet pipe (14), and described chemicals dosing plant is reacted with dosing by chemical feed pipe (5) respectively
Groove (2) connects with foam collecting pit (4), and described dosing reactive tank (2) is connected with tilted plate separator (3), described tilted plate separator
(3) bottom is provided with mud collection bucket (31), and the top of described tilted plate separator (3) is provided with the effluent weir of external drain pipe
(32).
2. according to claim 1 a kind of percolate pretreatment unit it is characterised in that described water inlet pipe (11) stretches into
Top in foam separator (1), described water inlet pipe (11) is provided with multiple shower nozzles.
3. according to claim 1 a kind of percolate pretreatment unit it is characterised in that described foam separator (1)
Bottom be communicated with aeration tube (12) with control valve, the middle part in described foam separator (1) is provided with for cutting gas
The granulated filler (13) of bubble.
4. a kind of percolate pretreatment unit divides it is characterised in that also including being arranged on foam according to claim 1
Effluent trough (16) on device (1) lateral wall, vertical in described effluent trough (16) is provided with water level regulation plate, described water level regulation
Effluent trough (16) is divided into inhalant region and the exhalant region that top communicates by plate, and described outlet pipe (14) includes the first outlet pipe and second
Outlet pipe, one end of described first outlet pipe connects the bottom of described foam separator (1), and the other end connects inhalant region, described
One end connection exhalant region of the second outlet pipe, other end connection dosing reactive tank (2).
5. according to claim 4 a kind of percolate pretreatment unit it is characterised in that the height of described water level regulation plate
Degree is less than the height of described effluent trough (16), and the height adjustable of water level regulation plate.
6. according to claim 1 a kind of percolate pretreatment unit it is characterised in that described dosing reactive tank (2)
Be provided with agitating device (6) in foam collecting pit (4).
7. according to claim 1 a kind of percolate pretreatment unit it is characterised in that described dosing reactive tank (2)
It is separately positioned on the two ends of described tilted plate separator (3) with foam collecting pit (4).
8. according to claim 1 a kind of percolate pretreatment unit it is characterised in that described dosing reactive tank (2)
Bottom connect with the bottom of tilted plate separator (3).
9. according to any one of claim 1 to 8 a kind of percolate pretreatment unit it is characterised in that described mud
Collection bucket (31) is communicated with the discharge pipeline (33) with control valve, and described discharge pipeline (33) all connects with foam collecting pit (4)
Sludge treating system.
10. according to any one of claim 1 to 8 a kind of percolate pretreatment unit it is characterised in that described foam
The bottom of separator (1), dosing reactive tank (2) and foam collecting pit (4) is all communicated with the blow-down pipe (7) with control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620838774.6U CN205953710U (en) | 2016-08-04 | 2016-08-04 | Landfill leachate preprocessing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620838774.6U CN205953710U (en) | 2016-08-04 | 2016-08-04 | Landfill leachate preprocessing device |
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| Publication Number | Publication Date |
|---|---|
| CN205953710U true CN205953710U (en) | 2017-02-15 |
Family
ID=57973648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620838774.6U Active CN205953710U (en) | 2016-08-04 | 2016-08-04 | Landfill leachate preprocessing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205953710U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112851039A (en) * | 2021-02-05 | 2021-05-28 | 中冶焦耐(大连)工程技术有限公司 | Device for preventing foams in aerobic tank/aeration tank from entering sedimentation tank |
| CN113087196A (en) * | 2021-03-01 | 2021-07-09 | 中钢集团武汉安全环保研究院有限公司 | A preprocessing device for landfill leachate handles |
-
2016
- 2016-08-04 CN CN201620838774.6U patent/CN205953710U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112851039A (en) * | 2021-02-05 | 2021-05-28 | 中冶焦耐(大连)工程技术有限公司 | Device for preventing foams in aerobic tank/aeration tank from entering sedimentation tank |
| CN113087196A (en) * | 2021-03-01 | 2021-07-09 | 中钢集团武汉安全环保研究院有限公司 | A preprocessing device for landfill leachate handles |
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