CN106268286A - A kind of biofiltration processing system of city refuse landfill gas - Google Patents
A kind of biofiltration processing system of city refuse landfill gas Download PDFInfo
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- CN106268286A CN106268286A CN201610682962.9A CN201610682962A CN106268286A CN 106268286 A CN106268286 A CN 106268286A CN 201610682962 A CN201610682962 A CN 201610682962A CN 106268286 A CN106268286 A CN 106268286A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1462—Removing mixtures of hydrogen sulfide and carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
- B01D53/526—Mixtures of hydrogen sulfide and carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/103—Water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The biofiltration processing system of the present invention a kind of city refuse landfill gas, can process CO when processing landfill gas simultaneously2And H2The multiple harmful gas such as S, has economy, the advantage efficiently, the most easily implemented, can complete the purification to landfill gas by controlling the circulation of nutritional solution.The present invention includes that landfill-gas collecting case, moisture-collection case and landfill gas pretreatment system, biofiltration improve lifting system, nutritional solution circulation and secondary treatment system；Its structural feature is: described landfill gas pretreatment system includes cleaner unit, aerator, humidifier, controller, thermoregulator, described biofiltration improves lifting system and includes that Cubic biofiltration tower, gas distributing system, liquid distribution trough, filler, the PVC rectangle screen of variable angle, metalling, the circulation of described nutritional solution and secondary treatment system include nutrition liquid pump, nutrition liquid bath, circulating water chennel, circulating pump, fluid flowmeter, tank delivery pump, sampled point of giving vent to anger, water washing groove.
Description
Technical field
The invention belongs to environmental project protection and waste gas purification processing technology field, particularly relate to a kind of municipal refuse
The biofiltration processing system of landfill gas.
Background technology
Landfill gas is series of physical, chemistry, the product of biological respinse in city refuse landfill, and primary product is first
Alkane, possibly together with some other harmful gass CO2And H2S etc.；The environmental pollution of municipal refuse is to face in Urbanization in China
One of the most serious environmental problem, take cost-effective mode municipal refuse is carried out harmless treatment, dispose be China city
The core of city's waste management studies a question；At present, alternative daily-life garbage without environmental pollution processes, disposal options mainly includes filling out
Bury, burn, three kinds of compost, and burn and compared with compost, fill and have that small investment, operating cost be low, convenient management, treating capacity
Greatly, component of refuse is required the outstanding advantages such as low；Therefore, from the point of view of entirety, within the considerably long period of current and expected future, fill out
Bury and be still the topmost process of China's municipal refuse, disposal options.
But, currently there are no a kind of the most efficient, economical, simple that easily implement, also may be used when processing landfill gas
To process CO simultaneously2And H2The city refuse landfill gas handling system of the multiple harmful gas such as S；Therefore, need badly have above-mentioned
A kind of processing system of the city refuse landfill gas of advantage.
Summary of the invention
The present invention is aiming at the problems referred to above, makes up the deficiencies in the prior art, it is provided that a kind of permissible when processing landfill gas
Process CO simultaneously2And H2The biofiltration processing system of the city refuse landfill gas of the multiple harmful gas such as S；The present invention has
There are economy, the advantage efficiently, the most easily implemented, the purification to landfill gas can be completed by controlling the circulation of nutritional solution.
For achieving the above object, the present invention adopts the following technical scheme that.
The biofiltration processing system of the present invention a kind of city refuse landfill gas, including landfill-gas collecting case, dampness
Collecting box and landfill gas pretreatment system, biofiltration improvement lifting system, nutritional solution circulation and secondary treatment system；Its
Structural feature is: described landfill gas pretreatment system includes cleaner unit, aerator, humidifier, controller, thermoregulator, institute
State biofiltration to improve lifting system and include Cubic biofiltration tower, gas distributing system, liquid distribution trough, filler, variable
The PVC rectangle screen at angle, metalling, the circulation of described nutritional solution and secondary treatment system include nutrition liquid pump, nutrition liquid bath, circulation
Tank, circulating pump, fluid flowmeter, tank delivery pump, sampled point of giving vent to anger, water washing groove.
The gas outlet of described landfill-gas collecting case connects the air inlet of cleaner unit, and the gas outlet of described cleaner unit connects air blast
The air inlet of machine, the gas outlet of described aerator connects the air inlet of humidifier, and the outlet of described humidifier connects controller, institute
In stating controller, thermoregulator is set；Liquid distribution trough is installed in the top within described Cubic biofiltration tower, described
Bottom within Cubic biofiltration tower installs gas distributing system, the pars intermedia within described Cubic biofiltration tower
Divide the PVC rectangle screen installing variable angle, the PVC rectangle screen of variable angle is filled filler, the PVC screen of described variable angle
If filler is divided into dried layer, between the upper end and liquid distribution trough of filler, between the lower end and gas distributing system of filler
It is respectively provided with metalling；The top of described Cubic biofiltration tower is provided with inlet, gas outlet, described Cubic biofiltration tower
Bottom be provided with liquid outlet, side, bottom is provided with air inlet, the air inlet of the side, bottom of described Cubic biofiltration tower with
Gas distributing system is connected, and the outlet of described controller connects the air inlet of side, Cubic biofiltration tower bottom.
The liquid outlet of described nutrition liquid bath is connected with the inlet of nutrition liquid pump, the liquid outlet of described nutrition liquid pump and circulation
The inlet of tank is connected, and the liquid outlet of described circulating water chennel is connected with the inlet of circulating pump, the liquid outlet of described circulating pump
It is connected with the inlet of described Cubic biofiltration top of tower by connecting fluid flowmeter, described Cubic biofiltration tower
The liquid outlet of bottom is also connected with the inlet of circulating water chennel；The gas outlet of described Cubic biofiltration top of tower respectively with go out
Gas sampled point, the inlet of water washing groove are connected, the washing waste liquid outlet of described water washing groove and the inlet of tank delivery pump
Being connected, the liquid outlet of described tank delivery pump is also connected with the inlet of circulating water chennel；The damp exit of described water washing groove with
Moisture-collection case is connected.
As a preferred embodiment of the present invention, described filler is made up of compost, niblet, Pericarppium arachidis hypogaeae thickness Organic substance.
As the another kind of preferred version of the present invention, the metalling between upper end and the liquid distribution trough of described filler adds
Enter active charcoal, Calx, broken Concha Ostreae shell.
As the another kind of preferred version of the present invention, thick real under described filler.
As the another kind of preferred version of the present invention, the PVC screen bottom of described variable angle be enclosed with one layer with holes
HDPE thin film；Described HDPE thin film with holes can play and control the dirtiest effect combined with the level flow direction of nutritional solution.
Specifically, the surface area of the PVC rectangle screen of variable angle of the present invention can become, can be raw according to Cubic
The surface area of thing filtration tank carries out assembly；Any joint and the plate of the PVC rectangle screen of variable angle are all to dismantle
With restructuring, it is possible to meet any requirement of reality；The angle of the PVC rectangle screen of variable angle can be 0～1800From
By regulating, it is possible to change nutritional solution flow velocity in the horizontal direction, and the HDPE with holes of the PVC screen bottom of described variable angle
Thin film enables to the most vertical flow direction of nutritional solution and becomes the flow direction of slightly-inclined level and flow vertically to the supplying nutrition liquid that combines,
The pressure drop not easily leading to filler raises, and i.e. reduces filler because being produced, by the impact of nutritional solution, the possibility that pressure drop increases for a long time
Property, increase the cycle of the use of Cubic biofiltration tower, to reach the effect recycled for a long time.
As the another kind of preferred version of the present invention, between liquid outlet and the inlet of circulating water chennel of described nutrition liquid pump
It is provided with valve.
Compared with prior art, present invention have the advantages that.
1, the biofiltration processing system of a kind of city refuse landfill gas disclosed in this invention, utilizes by humidifying
Organic exhaust gas i.e. landfill gas is by being filled with the Cubic biofiltration tower of filler, and microorganism produced with on filler contacts, quilt
Institute of Micro-biology's absorption degradation, is eventually converted into simple inorganic matter or synthesizes new cellular material；The present invention can be at normal temperature and pressure
Under carry out, have that system equipment is reliable, stable, it is simple to operate to manage, energy consumption is low, investment operating cost low, to landfill yard
Gas purifying effect is good, the advantage of non-secondary pollution；The especially exhaust-gas treatment gas to atm number, low concentration has good being suitable for
Property and economy.
2, the present invention is mainly improved lifting, nutritional solution circulation and after-treatment three by landfill gas pretreatment, biofiltration
System forms, and biofiltration therein improves lifting system can improve the speed of reaction and the cycle of use, and the present invention can
For profound level, high efficiency, economic garbage loading embeading gas disposal pollution-free, super；Landfill gas first passes through dedusting in normal operation
Device, humidifier, the dedusting of thermoregulator, the pretreatment of the temperature that is humidified, regulates, ensure Cubic biofiltration inner-tower filling material
Speed when landfill gas is adsorbed by upper produced microorganism, temperature.
3, the present invention realizes spray mode by described liquid distribution trough and carries to the filler in Cubic biofiltration tower
For nutritional solution, it is possible to allow nutritional solution spray, dirty time contact filler the most abundant, it is ensured that feed flow equably；Described gas
Distribution system can make in landfill-gas collecting case landfill gas out conveying, filter time more uniform；Due to filling compaction, block up
The problem that the filler pressure drop that brings of plug raises, the present invention is wrapped up by the PVC rectangle screen of described variable angle and its underpart
The flow direction that one layer of HDPE thin film with holes makes nutritional solution the most vertical becomes the flow direction of slightly-inclined level and flowing vertically to and combines,
Reduce filler because being produced, by the impact of nutritional solution, the probability that pressure drop increases for a long time, increase Cubic biofiltration tower
Use cycle, to reach the effect recycled for a long time.
4, the present invention uses water washing groove to wash double purification, after water washing, uses tank delivery pump will absorb residual
Remaining CO2And H2The waste liquid of S is transmitted back to flow to Cubic biofiltration tower reprocessing again through circulating water chennel, circulating pump, so
Both can not waste water resource, prevent again secondary pollution, be adequately filtered out remnants harmful gas CO2And H2S etc. need removing
Gas, improves the purification efficiency of landfill gas.
Accompanying drawing explanation
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with
The drawings and the specific embodiments, are further elaborated to the present invention.Should be appreciated that specific embodiment party described herein
Formula only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 is the structural representation of the biofiltration processing system of the present invention a kind of city refuse landfill gas.
Fig. 2 is the PVC rectangle of the variable angle of the biofiltration processing system of the present invention a kind of city refuse landfill gas
The assembled top view of screen.
Fig. 3 is the structural representation that the present invention is arranged on the PVC rectangle screen of the variable angle in Cubic filtration tank.
Labelling in figure: 1 be cleaner unit, 2 be aerator, 3 be humidifier, 4 be controller, 5 be thermoregulator, 6 for gas
Body distribution system, 7 be Cubic biofiltration tower, 8 be nutrition liquid pump, 9 be nutrition liquid bath, 10 be filler, 11 for variable angle
PVC rectangle screen, 12 be metalling, 13 for circulating water chennel, 14 for circulating pump, 15 for fluid flowmeter, 16 for liquid distribution trough,
17 it is tank delivery pump, 18 be sampled point of giving vent to anger, 19 is water washing groove, 20 is moisture-collection case, 21 is landfill-gas collecting case.
Detailed description of the invention
Shown in accompanying drawing 1,2 and 3, the biofiltration processing system of the present invention a kind of city refuse landfill gas, bag
Include landfill-gas collecting case 21, moisture-collection case 20 and landfill gas pretreatment system, biofiltration improves lifting system, nutrition
Liquid circulation and secondary treatment system；Its structural feature is: described landfill gas pretreatment system includes cleaner unit 1, aerator 2, increases
Wet device 3, controller 4, thermoregulator 5, described biofiltration improves lifting system and includes Cubic biofiltration tower 7, gas
Distribution system 6, liquid distribution trough 16, filler 10, the PVC rectangle screen 11 of variable angle, metalling 12, described nutritional solution circulation and
Secondary treatment system includes that nutrition liquid pump 8, nutrition liquid bath 9, circulating water chennel 13, circulating pump 14, fluid flowmeter 15, tank carry
Pump 17, sampled point 18 of giving vent to anger, water washing groove 19.
The gas outlet of described landfill-gas collecting case 21 connects the air inlet of cleaner unit 1, and the gas outlet of described cleaner unit 1 connects
The air inlet of aerator 2, the gas outlet of described aerator 2 connects the air inlet of humidifier 3, and the outlet of described humidifier 3 connects
Controller 4, arranges thermoregulator 5 in described controller 4；Liquid is installed in the top within described Cubic biofiltration tower 7
Body distributor 16, the bottom within described Cubic biofiltration tower 7 installs gas distributing system 6, described Cubic biology
Mid portion within filtration tank 7 installs the PVC rectangle screen 11 of variable angle, fills on the PVC rectangle screen 11 of variable angle
Filler 10, if filler 10 is divided into dried layer by the PVC screen 11 of described variable angle, the upper end of filler 10 and liquid distribution trough 16 it
Between, between the lower end of filler 10 and gas distributing system 6, be respectively provided with metalling 12；The top of described Cubic biofiltration tower 7
Portion is provided with inlet, gas outlet, and the bottom of described Cubic biofiltration tower 7 is provided with liquid outlet, side, bottom is provided with air inlet,
The air inlet of the side, bottom of described Cubic biofiltration tower 7 is connected with gas distributing system 6, going out of described controller 4
Mouth connects the air inlet of side, Cubic biofiltration tower 7 bottom.
The liquid outlet of described nutrition liquid bath 9 is connected with the inlet of nutrition liquid pump 8, the liquid outlet of described nutrition liquid pump 8 with
The inlet of circulating water chennel 13 is connected, and the liquid outlet of described circulating water chennel 13 is connected with the inlet of circulating pump 14, described circulation
The liquid outlet of pump 14 is connected with the inlet at described Cubic biofiltration tower 7 top by connecting fluid flowmeter 15, described
Liquid outlet bottom Cubic biofiltration tower 7 is also connected with 13 inlets of circulating water chennel；Described Cubic biofiltration tower 7
The gas outlet at top is connected with sampled point 18 of giving vent to anger, the inlet of water washing groove 19 respectively, and the washing of described water washing groove 19 is given up
Liquid outlet is connected with the inlet of tank delivery pump 17, the liquid outlet of described tank delivery pump 17 also with the feed liquor of circulating water chennel 13
Mouth is connected；The damp exit of described water washing groove 19 is connected with moisture-collection case 20.
As a kind of embodiment of the present invention, described filler 10 is made up of compost, niblet, Pericarppium arachidis hypogaeae thickness Organic substance；
In Cubic biofiltration tower 7, described filler 10 constitutes and produces the nutriment filtering landfill gas desired microorganisms；Described heap
Fertile and niblet provides the nutrition of microorganism, and niblet can play the supporting role of filler 10.
As the another kind of embodiment of the present invention, the metalling 12 between upper end and the liquid distribution trough 16 of described filler 10
In there was added activated carbon, Calx, broken Concha Ostreae shell；Ensure that the pH value making nutritional solution controls between 7-8.
As the another kind of embodiment of the present invention, described filler is slightly gone up real 10 times；So can be than reasonably allowing nutrition
Liquid is more uniformly effective, and microorganism is more preferable to the adsorption effect meeting of landfill gas.
As the another kind of embodiment of the present invention, PVC screen 11 bottom of described variable angle be enclosed with one layer with holes
HDPE thin film；Described HDPE thin film with holes can play and control the dirtiest effect combined with the level flow direction of nutritional solution.
Specifically, the surface area of the PVC rectangle screen 11 of variable angle of the present invention can become, can be according to Cubic
The surface area of biofiltration tower 7 carries out assembly；Any joint of the PVC rectangle screen 11 of variable angle and plate are all to carry out
Dismounting and restructuring, it is possible to meet any requirement of reality；The angle of the PVC rectangle screen 11 of variable angle can 0～
1800Freely regulate, it is possible to change nutritional solution flow velocity in the horizontal direction, and the band of PVC screen 11 bottom of described variable angle
The HDPE thin film in hole enables to the most vertical flow direction of nutritional solution and becomes the flow direction of slightly-inclined level and flow vertically to the confession that combines
To nutritional solution, it is not easy to cause the pressure drop of filler to raise, i.e. reduce filler because pressure drop can be produced by the impact of nutritional solution for a long time
The probability increased, increases the cycle of the use of Cubic biofiltration tower 7, to reach the effect recycled for a long time.
As the another kind of embodiment of the present invention, the liquid outlet of described nutrition liquid pump 8 and the inlet of circulating water chennel 13 it
Between be provided with valve.
Cleaner unit 1 of the present invention carries out dedusting to landfill-gas collecting case 21 landfill gas out, more right by humidifier 3
Landfill gas is humidified so that landfill gas is converted into microbial reaction produced by liquid film and filler 10 by air film；Described control
Device 4, thermoregulator 5 ensure the growth of Cubic biofiltration tower 7 internal temperature suitable micro-organisms, control and improve reaction
Effect and speed.
The present invention by described liquid distribution trough 16 can allow nutritional solution spray, dirty time contact filler 10 more fill
Point, described gas distributing system 6 can make in landfill-gas collecting case 21 landfill gas out conveying, filter time more uniform.
The present invention is by described nutrition liquid bath 9, nutrition liquid pump 8, circulating water chennel 13, circulating pump 14 and Cubic biofiltration
Tower 7 constitutes the process of the nutrition liquid bath 9 circulation supply nutrition of a circulation.
The present invention is by water washing groove 19, tank delivery pump 17, circulating water chennel 13, circulating pump 14 and Cubic biofiltration tower
7 secondary washing purifying gas containing remaining CO2 and H2S constituted from gas outlet, Cubic biofiltration tower 7 top out are clean
Change processing procedure；Use water washing groove 19 to wash double purification, after water washing, use tank delivery pump 17 will absorb remnants
The waste liquid of CO2 and H2S be again transmitted back to flow to Cubic biofiltration tower 7 reprocess through circulating water chennel 13, circulating pump 14,
The most both can not waste water resource, prevent again secondary pollution, be adequately filtered out remnants harmful gas CO2And H2S etc. need to remove
The gas gone, improves the purification efficiency of landfill gas.
The implementation process of the summary present invention: determine Cubic biofiltration tower 7 size and the peace of reality according to Practical Project
The PVC screen 11 of the variable angle of row's reasonable section area, and the PVC screen of variable angle is adjusted according to the nutritional solution flow of reality
The size of 11 angles controls horizontal flow, flow velocity, prevents on the PVC screen 11 of variable angle that some missing sites nutritional solution can be reasonable
Ground reduces level interval；Finally, observe sampled point 18 of giving vent to anger in real time, according to other gas in the landfill gas analyzed after purifying
The content of body, is adjusted the temperature in Cubic biofiltration tower 7, humidity, pH value etc..
It is understood that above with respect to the specific descriptions of the present invention, be merely to illustrate the present invention and be not limited to this
Technical scheme described by inventive embodiments, it will be understood by those within the art that, still can carry out the present invention
Amendment or equivalent, to reach identical technique effect；As long as meet use needs, all protection scope of the present invention it
In.
Claims (6)
1. a biofiltration processing system for city refuse landfill gas, landfill-gas collecting case (21), moisture-collection case
(20) and landfill gas pretreatment system, biofiltration improve lifting system, nutritional solution circulation and secondary treatment system；It is special
Levy and be: described landfill gas pretreatment system includes that cleaner unit (1), aerator (2), humidifier (3), controller (4), temperature are adjusted
Joint device (5), described biofiltration improves lifting system and includes Cubic biofiltration tower (7), gas distributing system (6), liquid
Distributor (16), filler (10), PVC rectangle screen (11) of variable angle, metalling (12), at the circulation of described nutritional solution and secondary
Reason system includes nutrition liquid pump (8), nutrition liquid bath (9), circulating water chennel (13), circulating pump (14), fluid flowmeter (15), tank
Delivery pump (17), sampled point of giving vent to anger (18), water washing groove (19)；
The gas outlet of described landfill-gas collecting case (21) connects the air inlet of cleaner unit (1), and the gas outlet of described cleaner unit (1) is even
Connecing the air inlet of aerator (2), the gas outlet of described aerator (2) connects the air inlet of humidifier (3), described humidifier (3)
Outlet connect controller (4), thermoregulator (5) is set in described controller (4)；Described Cubic biofiltration tower (7)
Liquid distribution trough (16) is installed in internal the top, and the bottom that described Cubic biofiltration tower (7) is internal is installed gas and divided
Match system (6), PVC rectangle screen (11) of the mid portion installation variable angle that described Cubic biofiltration tower (7) is internal,
Fill filler (10) on PVC rectangle screen (11) of variable angle, the PVC screen (11) of described variable angle by filler (10) if being divided into
Dried layer, between the upper end of filler (10) and liquid distribution trough (16), the lower end of filler (10) and gas distributing system (6) it
Between be respectively provided with metalling (12)；The top of described Cubic biofiltration tower (7) is provided with inlet, gas outlet, described Cubic
The bottom of biofiltration tower (7) is provided with liquid outlet, side, bottom is provided with air inlet, under described Cubic biofiltration tower (7)
The air inlet of side, portion is connected with gas distributing system (6), and the outlet of described controller (4) connects Cubic biofiltration tower
(7) air inlet of side, bottom；
The liquid outlet of described nutrition liquid bath (9) is connected with the inlet of nutrition liquid pump (8), the liquid outlet of described nutrition liquid pump (8)
Being connected with the inlet of circulating water chennel (13), the liquid outlet of described circulating water chennel (13) is connected with the inlet of circulating pump (14),
The liquid outlet of described circulating pump (14) is by connecting fluid flowmeter (15) and the entering of described Cubic biofiltration tower (7) top
Liquid mouth is connected, and the liquid outlet also inlet with circulating water chennel (13) of described Cubic biofiltration tower (7) bottom is connected；Described
The gas outlet at Cubic biofiltration tower (7) top inlet with sampled point of giving vent to anger (18), water washing groove (19) respectively is connected,
The washing waste liquid outlet of described water washing groove (19) is connected with the inlet of tank delivery pump (17), described tank delivery pump (17)
Liquid outlet also inlet with circulating water chennel (13) be connected；The damp exit of described water washing groove (19) and moisture-collection case
(20) it is connected.
The biofiltration processing system of a kind of city refuse landfill gas the most according to claim 1, it is characterised in that:
Described filler (10) is made up of compost, niblet, Pericarppium arachidis hypogaeae thickness Organic substance.
The biofiltration processing system of a kind of city refuse landfill gas the most according to claim 1, it is characterised in that:
Metalling between upper end and the liquid distribution trough of described filler (10) there was added activated carbon, Calx, broken Concha Ostreae shell.
The biofiltration processing system of a kind of city refuse landfill gas the most according to claim 1, it is characterised in that:
Under described filler (10) the most in fact.
The biofiltration processing system of a kind of city refuse landfill gas the most according to claim 1, it is characterised in that:
PVC screen (11) bottom of described variable angle is enclosed with one layer of HDPE thin film with holes.
The biofiltration processing system of a kind of city refuse landfill gas the most according to claim 1, it is characterised in that:
It is provided with valve between liquid outlet and the inlet of circulating water chennel (13) of described nutrition liquid pump (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610682962.9A CN106268286B (en) | 2016-08-18 | 2016-08-18 | Gaseous biofiltration processing system of municipal refuse landfill |
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|---|---|---|---|
| CN201610682962.9A CN106268286B (en) | 2016-08-18 | 2016-08-18 | Gaseous biofiltration processing system of municipal refuse landfill |
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| CN106268286B CN106268286B (en) | 2022-12-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108554164A (en) * | 2018-05-18 | 2018-09-21 | 暨南大学 | A kind of air biofiltration device and method for phthalic acid ester of degrading |
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