CN207294237U - A kind of leachate reeirculation atomization and vaporization system - Google Patents
A kind of leachate reeirculation atomization and vaporization system Download PDFInfo
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- CN207294237U CN207294237U CN201721217796.1U CN201721217796U CN207294237U CN 207294237 U CN207294237 U CN 207294237U CN 201721217796 U CN201721217796 U CN 201721217796U CN 207294237 U CN207294237 U CN 207294237U
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Abstract
It the utility model is related to a kind of leachate reeirculation atomization and vaporization system.It includes landfill leachate collecting pit, it is used to store landfill leachate；Landfill leachate conveying device, the inlet of landfill leachate conveying device are connected by the first pipeline with landfill leachate collecting pit；And the first anti-water recovery apparatus is provided with the first pipeline；First order lateral, the quantity of first order lateral are at least two, it is connected by same second pipe with the liquid outlet of landfill leachate conveying device；And the second anti-water recovery apparatus is provided with second pipe；And more second level laterals are connected with each first order lateral；Landfill leachate atomising device, landfill leachate atomising device are arranged at each second level lateral end, it is connected by second level lateral with first order lateral；And control device, control device are connected with landfill leachate conveying device.
Description
Technical field
Technical field of waste treatment is the utility model is related to, a kind of leachate reeirculation atomization is concretely related to and steams
Hair system.
Background technology
With the sharp increase of municipal refuse yield, processing method both economical at present is to carry out sanitary landfills to it.And rubbish
The generation of rubbish percolate is the greatest problem of sanitary landfills, its complicated component, organic concentration are high, water quality and quantity is changeable.Generally
For, the pH value of landfill leachate is that 4~9, COD is 2000~62000mg/L, and BOD5 is 60~45000mg/L, is dealt with
It is very intractable.
Existing method for treating garbage percolation liquid mainly includes：
1. biological treatment
Biological treatment is divided into Aerobic biological process method, Anaerobic biotreatment method and anaerobic-aerobic combined treatment mode three
Kind.Aerobic biological process method includes activated sludge process, aeration oxidation pond method and biofilm.Anaerobic biotreatment method includes common
Anaerobic nitrification, diphasic anaerobic nitrification, anaerobic filter, up-flow anaerobic sludge blanket (UASB), anaerobic composite bed (UASBF) etc..Detest
Oxygen-aerobic combination processing mode includes SBR methods, AB methods, anaerobic pond-SBR methods, anaerobic pond-activated sludge process, aerobic/anaerobic life
Thing bed etc..
In bioanalysis, the activated sludge process of aerobic process and the treatment effect of biofilm are best, and the residence time is shorter,
There is abundant operating experience, but construction investment is big, operational and administrative expenses is high；In contrast, aeration oxidation pond technique is simple, invests
Less, easy to manage, but the residence time is long, takes up a large area and easily by seasonal effect.Anaerobic treatment process is suitable for having for high concentration
Machine waste water, it the shortcomings that be residence time length, the removal rate of pollutant is relatively low, and change to temperature is sensitive.Therefore, to high concentration
Landfill leachate use the not only economical rationality of anaerobic-aerobic combined treatment process, but also improve treatment effeciency.China has at present
Many landfill yards use this method, the UASB- oxidation ditches-stabilization pond technique in Foochow red temple ridge, and processing landfill leachate water is
1000m3/d；Entrance water-quality COD cr is 8000mg/L, BOD5 5500mg/L；The removal rate of CODcr is going for 95%, BOD5
Except rate is 97%, removal rate is higher, but exports water quality and be still not up to《Consumer waste filling and embedding controls standard》(GB16889—1997)
The requirement of middle landfill leachate secondary discharge standard.
2. physicochemical treatment method
Physicochemical treatment method mainly includes coagulant sedimentation, chemical oxidization method, absorption method and membrane separation process etc..
Compared with biological treatment, influence that materializing strategy changes from water quality and quantity, effluent quality is more stable, especially
(0.07~0.20) relatively low to BOD5/COD values, the landfill leachate that is difficult to biological treatment have preferable treatment effect,
As one of most common method in percolate aftertreatment technology.But its cost is higher, it is unsuitable for big yield landfill leachate
Processing.
Therefore, while method for treating garbage percolation liquid is studied, the technology for reducing leachate generation should also be studied.
Utility model content
For the deficiency of the prior art, the utility model provides a kind of leachate reeirculation atomization and vaporization system.
The concrete technical scheme of the leachate reeirculation atomization and vaporization system of the utility model is as follows：
A kind of leachate reeirculation atomization and vaporization system, it includes：Landfill leachate collecting pit, it is used to store rubbish
Percolate；Landfill leachate conveying device, the inlet of the landfill leachate conveying device pass through the first pipeline and the rubbish
Rubbish leachate collection pool is connected；And the first anti-water recovery apparatus is provided with first pipeline；First order lateral,
The quantity of the first order lateral is at least two, it is conveyed by same second pipe and the landfill leachate
The liquid outlet of device is connected；And the second anti-water recovery apparatus is provided with the second pipe；And described in each
More second level laterals are connected with first order lateral；Landfill leachate atomising device, the garbage filter liquid mist
Makeup, which installs, is placed in each second level lateral end, it passes through the second level lateral and the first order
Lateral is connected；And control device, the control device are connected with the landfill leachate conveying device.
By being to include landfill leachate to collect by the leachate reeirculation atomization and vaporization system design of the utility model
Pond, the landfill leachate conveying device being connected by the first pipeline with landfill leachate collecting pit, by pipe network and garbage filter
The landfill leachate atomising device that liquid conveying device is connected and the control device being connected with landfill leachate conveying device；
Under the control of control device, landfill leachate conveying device by the first pipeline and by second pipe, first order lateral and
Landfill leachate in landfill leachate collecting pit is delivered to landfill leachate atomization by the pipe network of second level lateral composition
Landfill leachate, is atomized by device by landfill leachate atomising device, and the liquid pearl for being become small sprays, so as to increase rubbish
The natural evaporation of rubbish percolate, reduces the regurgitant volume of landfill leachate.
Further, the rubbish for being embedded in garbage loading embeading area bottom and being connected with the landfill leachate collecting pit is further included
Rubbish leachate collection pipe network.Pipe network is collected by landfill leachate the landfill leachate in garbage loading embeading area can be collected to rubbish
In rubbish leachate collection pool.
According to a preferred embodiment, the landfill leachate conveying device is water pump；The control device is water
Pump automated control cabinet；The first anti-water recovery apparatus and the second anti-water recovery apparatus are check-valves.
According to a preferred embodiment, first pressure gauge is additionally provided with the second pipe；Described first
Second pressure gauge and pressure-regulating device are additionally provided with level lateral and/or the second level lateral.
According to a preferred embodiment, first pipeline is filled by first flange and landfill leachate conveying
The inlet put is connected；The second pipe is connected by second flange with the liquid outlet of the landfill leachate conveying device
Connect.
According to a preferred embodiment, first pipeline, the second pipe, the first order lateral and
The second level lateral is hot melt high-voltage tube；And the diameter of the second level lateral is less than or equal to described the
The diameter of level-one lateral, the diameter of the first order lateral are less than the diameter of the second pipe；And described
It is connected between level-one lateral and the second level lateral in a manner of hot-melt adhesive paste；The first order lateral
It is connected between the second pipe in a manner of hot-melt adhesive paste.
According to a preferred embodiment, the landfill leachate atomising device is atomizer.
According to a preferred embodiment, the landfill leachate atomising device is spiral atomizer.
According to a preferred embodiment, the fire hydrant that is connected with the second pipe is further included and described
Fly-killing agent storage device is provided with two pipelines.
According to a preferred embodiment, deodorant storage device is additionally provided with the second pipe.
Compared with prior art, the leachate reeirculation atomization and vaporization system of the utility model has following beneficial to effect
Fruit：
By being to include landfill leachate to collect by the leachate reeirculation atomization and vaporization system design of the utility model
Pond, the landfill leachate conveying device being connected by the first pipeline with landfill leachate collecting pit, by pipe network and garbage filter
The landfill leachate atomising device that liquid conveying device is connected and the control device being connected with landfill leachate conveying device；
Under the control of control device, landfill leachate conveying device by the first pipeline and by second pipe, first order lateral and
Landfill leachate in landfill leachate collecting pit is delivered to landfill leachate atomization by the pipe network of second level lateral composition
Landfill leachate, is atomized by device by landfill leachate atomising device, and the liquid pearl for being become small sprays, so as to increase rubbish
The natural evaporation of rubbish percolate, maximizes the natural evaporation of landfill leachate, reduces the regurgitant volume of landfill leachate.It is and whole
For the basic cost of set system within 30,000 yuan, price is low；In addition the leachate reeirculation atomization and vaporization system of the utility model
Also have the characteristics that simple in structure, highly practical, effect is good, withdrawing fluid is few.
Brief description of the drawings
Fig. 1 is the system structure diagram of the utility model leachate reeirculation atomization and vaporization system；
Fig. 2 is the knot of the system another kind preferred embodiment of the utility model leachate reeirculation atomization and vaporization system
Structure schematic diagram；
Fig. 3 is the signal of landfill leachate atomising device in the utility model leachate reeirculation atomization and vaporization system
Figure.
Reference numerals list
10- landfill leachate collecting pits, 20- landfill leachate conveying devices, the first pipelines of 30-, the first anti-backwater of 40- dress
Put, 50- first order laterals, 60- second pipes, the second anti-water recovery apparatuses of 70-, 80- second level lateral, 90- rubbish
Percolate atomization device, 100- control devices, 110- landfill leachates collect pipe network, 120- deodorant storage devices.
Embodiment
The leachate reeirculation atomization and vaporization system of the utility model is described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the system structure diagram of the utility model leachate reeirculation atomization and vaporization system.It illustrates this
A kind of preferred embodiment of utility model leachate reeirculation atomization and vaporization system.
As shown in Figure 1, a kind of leachate reeirculation atomization and vaporization system, it includes landfill leachate collecting pit 10, rubbish
Rubbish percolate conveying device 20, landfill leachate atomising device 90 and control device 100.
Landfill leachate collecting pit 10, it is used to store landfill leachate.Preferably, landfill leachate collecting pit 10 can be with
It is cistern or water tank of common cistern or sealing etc..
Landfill leachate conveying device 20, the inlet of landfill leachate conveying device 20 pass through the first pipeline 30 and rubbish
Leachate collection pool 10 is connected.Specifically, one end of the first pipeline 30 passes through first flange and landfill leachate conveying device
20 inlet is connected；The other end of first pipeline 30 is arranged in landfill leachate collecting pit 10.And can also be
One end end that one pipeline 30 is located in landfill leachate collecting pit 10 installs the valve of anti-backwater, such as check-valves additional.
Preferably, landfill leachate conveying device 20 can be water pump.It is more highly preferred to, landfill leachate conveying device 20
It can be sewage self prime pump.Specifically, it is 10-15KW, lift that landfill leachate conveying device 20, which can be power of motor,
Be 7 meters for 20 meters, suction, pump-out be 100-120 cubic metres of centrifugal pumps hourly.
The first anti-water recovery apparatus 40 is additionally provided with the first pipeline 30.Preferably, the first anti-water recovery apparatus 40 can be
Check-valves.By setting the first anti-water recovery apparatus 40 on the first pipeline 30, on the one hand it can prevent diversion from flowing back, on the other hand
It is also convenient for being vented during recharge diversion.
The liquid outlet of landfill leachate conveying device 20 is connected with second pipe 60.It is connected with 60 latter end of second pipe more
Root first order lateral 50.Specifically, one end of second pipe 60 passes through second flange and landfill leachate conveying device 20
Liquid outlet be connected；More first order laterals 50 are connected to the latter end of second pipe 60 by way of hot-melt adhesive paste.
The second anti-water recovery apparatus 70 is provided with second pipe 60.Preferably, the second anti-water recovery apparatus 70 is check-valves,
It is installed at about 10 meters away from sewage self prime pump.By setting the second anti-water recovery apparatus 70 can be to prevent on second pipe 60
Only aqueous reflux more than pipeline.
More second level laterals 80 are connected with each first order lateral 50.Specifically, the first fraction
It is to be connected in a manner of hot-melt adhesive paste between branch pipe(tube) 50 and second level lateral 80.
Preferably, the first pipeline 30, second pipe 60, first order lateral 50 and second level lateral 80 are heat
Molten high-voltage tube.And the diameter of second level lateral 80 is less than or equal to the diameter of first order lateral 50, the first fraction
The diameter of branch pipe(tube) 50 is less than the diameter of second pipe 60.
Specifically, the first pipeline 30 and second pipe 60 can use the hot melt high-voltage tube of a diameter of 110mm, the first pipeline
30 length can be 60 meters, and the length of second pipe 60 can be 300 meters.
The quantity of first order lateral 50 can be 5, it can be connected using the hot melt high-voltage tube of a diameter of 32mm
On second pipe 60, the length of first order lateral 50 can be 100 meters.
The second level lateral 80 of a diameter of 32mm of 10-12 roots can be connected on every first order lateral 50.
Further, deodorant storage device 120 is additionally provided with second pipe 60.Deodorant storage device 120 can
To be equipped with the medicine box of sodium hypochlorite and biological deodorant.It is used for in second pipe 60 percolate add sodium hypochlorite and
Biological deodorant, so as to play the smelly purpose of degerming drop, and then reduces the peculiar smell in air.
Landfill leachate atomising device 90 is arranged at each 80 end of second level lateral, it passes through second level branch
Pipeline 80 is connected with first order lateral 50.
In the mounted state, height of the landfill leachate atomising device 90 away from ground is 0.5 to 1 meter.Preferably 0.6 meter.
Preferably, landfill leachate atomising device 90 is atomizer.It is further preferred that landfill leachate atomising device
90 be spiral atomizer made of stainless steel, as shown in Figure 3.The size of spiral atomizer is 1/4 inch.
Specifically, spiral nozzle can be the industrial muzzles without internal structure of through type.Its is compact to design, has unimpeded
Nonclogging no inner core straight-through type flow passage design, can make liquid reach maximum stream flow on the pipeline of intended size, it can be by liquid
Body or slurry by the helicoid with continuously diminishing is tangent and collision after, the liquid pearl for becoming small sprays and is formed vaporific.Nozzle
Airflow design in cavity from import to outlet causes resistance coefficient to minimize.Since the rubbish formed after garbage loading embeading oozes
Filtrate complicated, big impurity is more, therefore uses the spiral nozzle without internal structure of through type to ensure that the feelings of complicated water quality
Under condition, nozzle does not block up.
In addition, spiral nozzle can be solid cone shaped or hollow cone type spray nozzle, spray angle scope can be 50 °-
170°；Under 3kg pressure, liquid flow rate scope is 5.5-4140 liters/min.This compact-sized nozzle can be farthest
Liquid lock is reduced, liquid is reached maximum stream flow on the pipeline of intended size.
Further, it is also provided with first pressure gauge on second pipe 60.In first order lateral 50 and/or
Second pressure gauge and pressure-regulating device are also provided with second level lateral 80.
By setting pressure gauge can on second pipe 60, first order lateral 50 and/or second level lateral 80
To observe the hydraulic pressure in second pipe 60, first order lateral 50 and/or second level lateral 80；By
Pressure-regulating device is set to be led with mean allocation because of far and near difference on level-one lateral 50 and/or second level lateral 80
The decay of hydraulic pressure in the pipeline of cause.
Preferably, the big ball valve of pressure-regulating device first choice water-flowing amount.
Control device 100, control device 100 are connected with landfill leachate conveying device 20.Preferably, control device
100 be water pump automated control cabinet.It can include two groups of control circuits, and first group controls for daily run time section, and second
Group is operation duration and shuts down duration control.In addition, control device 100 can also include manual, automatic and stop three gears；
Wherein, manual gear be it is long to open, stops gear be that long pass, automatic gear are then run according to daily run time section, when whole
Between further comprises operation duration in section and stop duration with rest.
Further, it can also include what is be embedded in garbage loading embeading area bottom and be connected with landfill leachate collecting pit 10
Landfill leachate collects pipe network 110, as shown in Figure 2.
The course of work of the leachate reeirculation atomization and vaporization system of the utility model is as follows：
Control device 100 controls landfill leachate conveying device 20 to start, and is received landfill leachate by the first pipeline 30
Landfill leachate in collection pond 10 is smoked, and the first pressing of the liquid outlet of landfill leachate conveying device 20 is reached 0.4kg/cm2
More than；Landfill leachate reaches garbage filter by second pipe 60, first order lateral 50 and second level lateral 80
Liquid atomising device 90, landfill leachate are decayed by second pipe 60, first order lateral 50 and second level lateral 80
Afterwards, the pressure of landfill leachate atomising device 90 is made have 0.25kg/cm2More than, to reach good atomizing effect；By rubbish
Landfill leachate after rubbish percolate atomization device 90 is atomized drifts in atmosphere, and most of natural evaporation, small part recharge is arrived
Area is filled, ultimately forms phegma；Phegma is entered back into landfill leachate collecting pit 10, is carried out recharge atomization again and is so followed
Ring.
The leachate reeirculation atomization and vaporization system of the utility model is accurately calculating pipeline pressure, spraying range
After data, in rubbish height more than 3 meters and situation that blinding is good, while outdoor temperature, more than 30 degree, continuous three days persistently
Work by day, the garbage filter stoste reflux ratio after atomization, only less than 10%.In atomization process, landfill leachate and sky
Oxygen in gas is fully oxidized, greatly reduces the content of COD in stoste.
Through experiment, the landfill leachate after the leachate reeirculation atomization and vaporization system processing of the utility model returns
It is poured into landfill yard, two aspects can be played：
First, decrement.Absorbed after leachate recirculation by evaporation or by vegetation, reduce the treating capacity outside the venue of percolate；
Second, stabilization process.Rubbish humidity can be increased by returning spray, strengthened microbial activity, accelerated the generation of methane
The decomposition of speed and organic matter, shortens the stabilisation process of landfill waste.
By using the leachate reeirculation atomization and vaporization system of the utility model, the generation of basic achievable percolate
With the balance of evaporation capacity, while COD can be made to be down to 142mg/L by 10400mg/L, TN is down to 18mg/L by 899mg/L.
Further, the leachate reeirculation atomization and vaporization system of the utility model can also include and second pipe 60
The fire hydrant being connected.And fly-killing agent storage device is provided with second pipe 60.
Since current city life garbage landfill mostly is all not provided with fire hydrant device, security risk is very big.So
Second pipe 60 can connect fire hydrant on suitable position.By the way that the fire that disappears can be connected on the position that second pipe 60 is adapted to
Bolt, can regard fire-fighting when fire behavior occurs in refuse landfill by the leachate reeirculation atomization and vaporization system of the utility model
Pipe network uses.
Further, since the leachate reeirculation atomization and vaporization system water yield of the utility model is big, atomizing effect is good, institute
With the ancillary equipment that can also be sprayed as refuse landfill fly-killing agent.Go out specifically, can be set on second pipe 60
Fly medicament storage device.Fly-killing agent is positioned in fly-killing agent storage device, fly-killing agent passes through mist with landfill leachate
Change nozzle to spray, good effect of killing flies can be played.
It should be noted that all features disclosed in this specification, or disclosed all methods or during the step of,
In addition to mutually exclusive feature and/or step, it can combine in any way.
In addition, above-mentioned specific embodiment is exemplary, those skilled in the art can be in the utility model disclosure
Inspiration under find out various solutions, and these solutions also belong to the open scope of the utility model and fall into this reality
Within new protection domain.It will be understood by those skilled in the art that the utility model specification and its attached drawing are explanation
Property and not form limitations on claims.The scope of protection of the utility model is limited by claim and its equivalent.
Claims (10)
1. a kind of leachate reeirculation atomization and vaporization system, it is characterised in that it includes：
Landfill leachate collecting pit (10), it is used to store landfill leachate；
Landfill leachate conveying device (20), the inlet of the landfill leachate conveying device (20) pass through the first pipeline (30)
It is connected with the landfill leachate collecting pit (10)；And it is provided with the first anti-water recovery apparatus on first pipeline (30)
(40)；
First order lateral (50), the quantity of the first order lateral (50) are at least two, it is by same
Second pipe (60) is connected with the liquid outlet of the landfill leachate conveying device (20)；And in the second pipe (60)
On be provided with the second anti-water recovery apparatus (70)；And it is connected with more second on each first order lateral (50)
Level lateral (80)；
Landfill leachate atomising device (90), the landfill leachate atomising device (90) are arranged at each second fraction
Branch pipe(tube) (80) end, it is connected by the second level lateral (80) with the first order lateral (50)；
And control device (100), the control device (100) are connected with the landfill leachate conveying device (20).
2. a kind of leachate reeirculation atomization and vaporization system according to claim 1, it is characterised in that further include embedded
Pipe network (110) is collected in garbage loading embeading area bottom and the landfill leachate that is connected with the landfill leachate collecting pit (10).
A kind of 3. leachate reeirculation atomization and vaporization system according to claim 1 or 2, it is characterised in that the rubbish
Rubbish percolate conveying device (20) is water pump；The control device (100) is water pump automated control cabinet；The first anti-backwater
Device (40) and the second anti-water recovery apparatus (70) are check-valves.
4. a kind of leachate reeirculation atomization and vaporization system according to claim 1 or 2, it is characterised in that described
Second pipe is additionally provided with first pressure gauge on (60)；In the first order lateral (50) and/or the second level branch
Pipeline is additionally provided with second pressure gauge and pressure-regulating device on (80).
5. a kind of leachate reeirculation atomization and vaporization system according to claim 1 or 2, it is characterised in that described
One pipeline (30) is connected by first flange with the inlet of the landfill leachate conveying device (20)；The second pipe
(60) it is connected by second flange with the liquid outlet of the landfill leachate conveying device (20).
6. a kind of leachate reeirculation atomization and vaporization system according to claim 1 or 2, it is characterised in that described
One pipeline (30), the second pipe (60), the first order lateral (50) and the second level lateral (80) are equal
To heat high-voltage tube；
And the diameter of the second level lateral (80) is less than or equal to the diameter of the first order lateral (50), institute
The diameter for stating first order lateral (50) is less than the diameter of the second pipe (60)；
And between the first order lateral (50) and the second level lateral (80) in a manner of hot-melt adhesive paste phase
Connection；It is connected between the first order lateral (50) and the second pipe (60) in a manner of hot-melt adhesive paste.
A kind of 7. leachate reeirculation atomization and vaporization system according to claim 1 or 2, it is characterised in that the rubbish
Rubbish percolate atomization device (90) is atomizer.
8. a kind of leachate reeirculation atomization and vaporization system according to claim 7, it is characterised in that the rubbish oozes
Filtrate atomising device (90) is spiral atomizer.
9. a kind of leachate reeirculation atomization and vaporization system according to claim 1 or 2, it is characterised in that further include
The fire hydrant being connected with the second pipe (60)；And fly-killing agent storage dress is provided with the second pipe (60)
Put.
10. a kind of leachate reeirculation atomization and vaporization system according to claim 1 or 2, it is characterised in that described
Deodorant storage device (120) is additionally provided with second pipe (60).
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