CN109821397A - Waste liquid exhaust treatment system - Google Patents
Waste liquid exhaust treatment system Download PDFInfo
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- CN109821397A CN109821397A CN201910147385.7A CN201910147385A CN109821397A CN 109821397 A CN109821397 A CN 109821397A CN 201910147385 A CN201910147385 A CN 201910147385A CN 109821397 A CN109821397 A CN 109821397A
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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
Abstract
The invention proposes a kind of waste liquid exhaust treatment systems, including a spray column and the biofilter being connect with the spray column, the sensing device being connected and middle control portion are installed in the system, primary filtration component is equipped with inside the spray column, the spray column is connected with into water road and air inlet path, gas circuit is connected to the spray column by water outlet path and out with the reactive tank, and depth-type filtration component is equipped in the biofilter.By spray column in conjunction with biofilter, the coupling of waste gas treatment process and spent shower water treatment process is realized, be the innovative technology in environment protection field, there is wide application prospect.
Description
Technical field
The present invention relates to gas-liquid filteration field of purification, particularly relate to a kind of waste liquid exhaust treatment system.
Background technique
Due to sewage treatment plant's foul smell, compost workshop and garbage transfer station foul smell, food and feed-processing plant's workshop
Exhaust gas, kitchen fume etc. will cause apparent pollution to environment and influence, traditional physically or chemically method deodorization have investment it is big,
Environmental pollution, it is complicated for operation the problems such as, biologic deodorization method comes into being in the 1950s, because it is with operational efficiency
High, environmental-friendly, small investment, easily operated feature, biological odor removal method rise in the 1980s to the fast development nineties
Come, becomes the main method of processing bad odor body.But existing biological odor removal method complex procedures, technique require high, Wu Fa great
Batch is applied in common life.
Summary of the invention
The present invention proposes a kind of waste liquid exhaust treatment system, solves the problems of the prior art.
The technical scheme of the present invention is realized as follows:
Waste liquid exhaust treatment system, including a spray column and the biofilter being connect with the spray column, the system
The sensing device being connected and middle control portion are inside installed, primary filtration component is equipped with inside the spray column, the spray column connects
It is connected into water road and air inlet path, gas circuit is connected to the spray column by water outlet path and out with the reactive tank, the biofiltration
Depth-type filtration component is equipped in bed.
As a preferred solution of the present invention, spray column top spray assemblies, the spray assemblies include and match connection
Spray head, the spray assemblies connect with external water inlet pipe.
As a preferred solution of the present invention, the primary filtration component includes the packing layer and described filler layer that middle part is arranged
The first filter layer of lower section.
As a preferred solution of the present invention, the spray tower bottom connects a water pump, and the water pump connects an outlet pipe, institute
It states outlet pipe to be connected to the irrigation layer in biofilter, the irrigation layer arrival end is equipped with overflow pipe.
As a preferred solution of the present invention, a gas gathering mask for absorbing simultaneously compressed exhaust gas is equipped in system, the gas gathering mask is logical
One air pump of piping connection is crossed, the air pump is connect with the spray column, and exhaust gas air inlet end is set to the primary filtration in spray column
Below component.
As a preferred solution of the present invention, the spray column top connects an escape pipe, the escape pipe free end and life
Vent line layer connection in object filter bed.
As a preferred solution of the present invention, water process route from top to bottom and from bottom to top is equipped in the reactive tank
Gas disposal route, the reaction tank bottom are equipped with Drainage Division, be arranged in sequence above the Drainage Division ventilating part, imbibition portion,
Interlayer and vegetable layer.
As a preferred solution of the present invention, the layer of irrigating includes the irrigation that array connected and be laid on vegetable layer upper surface
Formula spray head is irrigated layer and is connect with sewage input terminal.
As a preferred solution of the present invention, the interlayer includes that array has the haydite being laid on the steel plate and steel plate of through-hole
Layer, the haydite layer is interior to be equipped with haydite and coco bran.
As a preferred solution of the present invention, the imbibition portion includes swelling layer, is equipped in the swelling layer and passes through microorganism
The environment protection ball crossed, the environment protection ball are equipped with cellular aperture structure.
The mechanism of action of the method is that microorganism is decomposed and utilized the malodor components in foul gas by biological chemistry action,
Microorganism absorbs these nutrition, growth and breeding.Specific practice is first to be fixed on certain microorganism of artificial screening to be similar to
On carrier as biologic packing material, when foul smell passes through bio-carrier surface, these microorganisms will decompose odor components.In life
There is the processing equipment of existing comparative maturity in object deodorization engineering: biological scrubber, biofilter, bio-trickling filter.Currently,
It is biological filter process and biological island to biological deodorizing technology is widely applied.
The handling principle of biofiltration process is that (usually solid carries by allowing foul smell by being covered with the biologic packing material of microorganism
Body).Since enough nutriments are thus one of the essential features of biologic packing material necessary to microorganism completes vital movement
It is exactly rich in organic substance.The normal flourish of microorganism simultaneously keeps bioactivity to need a suitable living environment, needs
The condition to be met includes but is not limited to ambient temperature and humidity, oxygen concentration and organic material resource.Under the environmental condition of suitable growth,
Microorganism can utilize the odorant for decomposing a variety of self-assembling formations.Biologic packing material is the most crucial composition portion of biological filter
Point, due to multiple-microorganism of usually surviving on biologic packing material, when selecting biologic packing material, researcher needs to comprehensively consider not
Nutriment and life condition needed for same species of microorganism breeding, therefore mixing organic filler usually can be by as biologic packing material.
When biological filter temporarily ceases operation, the organic substance on filler still can utilize survival breeding by microorganism.
Bio-trickling filter is a kind of biologic packing material for including one or more layers surface and being wrapped up by microbial film, contains nutriment
Treatment fluid from uppermost spray on filler, then fall in the water tank that tower bottom is equipped with, and the promotion by pumping obtains circulation benefit
With；Gas is passed through biological filtering tower combined working from bottom to top, the processing equipment being purified after contacting with biologic packing material.This technology is use
Ecological filter bed and both equipment of biological filtering tower combined working combine to handle foul smell.The advantages of reason is bio-trickling filter is to account for
Ground area is small, there is certain removal rate to foul smell, but is unable to depth removal foul smell, and can be used as the series connection of coagulation device can be deep
The bacteria bed of degree removal foul smell, to achieve the purpose that carry out advanced treating to foul smell.While it is noted that ecology filter
The difference of bed and biological filtering tower combined working is that biological filtering tower combined working is due to that often will carry out spray process to gas, to avoid biologic packing material rotten
It is rotten, therefore biologic packing material uses the inert material that can adhere to, while generating spent shower water；Ecological filter bed interior no spray equipment,
And the watering period is longer, therefore biologic packing material uses the being rich in nutrition Active biological filler that can be adhered to by microorganism, simultaneously
Spent shower water is purified, achievees the purpose that recycle.
The utility model has the advantages that
The invention proposes a kind of waste liquid exhaust treatment systems, including a spray column and the biology connecting with the spray column
Filter bed is equipped with the sensing device being connected and middle control portion in the system, is equipped with primary filtration group inside the spray column
Part, the spray column are connected with into water road and air inlet path, and gas circuit connects by water outlet path and out for the spray column and the reactive tank
It is logical, depth-type filtration component is equipped in the biofilter.By spray column in conjunction with biofilter, waste gas treatment process is realized
With the coupling of spent shower water treatment process, it is the innovative technology in environment protection field, there is wide application prospect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of the section structure of the present invention.
In figure, reactive tank 1, irrigation layer 2, layer of plants 3, overflow pipe 4, tree skin layer 5, soil horizon 6, haydite layer 7, swelling layer 8,
Vent line layer 9, aeration head 10, discharge pipe line layer 11, gas gathering mask 12, spray column 13, air pump 14, escape pipe 15, outlet pipe 16,
Water inlet pipe 17, packing layer 18, first filter layer 19, water pump 20.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
The invention mainly comprises the contents of several aspects once:
Biological filtering tower combined working is carried out first and ecological filter bed coupled system process innovation designs, the design meter including supply and drain water system
It calculates, designs spray system for biological filtering tower combined working, be ecological filter bed design drip irrigation system, realize the processing of biological filtering tower combined working spent shower water and life
The coupling of state filter bed；Ventilating system is designed, gas gathering system and gas gathering mask is designed in workshop, designs corresponding gas and receive
Collect automatic control system, realizes the automatic collection of exhaust gas；In ecological filter bed arrangement ventilation duct and pressure inductor, pipeline resistance is calculated
Power selects the automatic control of the gas distribution mode and gas flow on ecological filter bed；The selection principle and type of biofilter material, in conjunction with
It is ecological filter bed that engineering is practical and biological filtering tower combined working selects biofilter material not of the same race and carries out rational proportion mixing to it, is implemented micro-
It is biological reinforced, realize the efficient process of exhaust gas or foul smell.
Each section carrying out practically mode:
1 odor collection system
It is handled to collect and being delivered in the deodorization device of design the biological foul smell in workshop, needs to design
Gas collection and transportation system.Gas gathering system is mainly made of gas gathering mask, and principle is to provide power by blower, will
Polluted gas as far as possible by high concentrations of gas inhalation mask, and enters biology by gas transport system before being diffused into atmosphere
Filter bed purification system.It is in need of consideration because being known as in design: the volume of foul smell to be treated, the structure type of gas gathering mask,
Installation site and performance parameter will form lasting negative pressure, the economic cost of design, environment and beauty in conveying gas pipeline
See effect.Gas gathering mask is inhaled using the cold process side in external gas gathering mask by designing, convenient for the installation of stringing and blower, collection is inhaled in side
The exhaust air rate of gas hood determines that, using control tachometric method, starting is connected using workshop pressure sensor, foul smell detector
PLC control system automatically controls.
2 spray systems
The diameter of spray column is determined by exhaust gas volumn in tower, guarantees that gas flow rate is less than or equal to 4m/s in spray column.In design,
Exhaust gas volumn is determining value, therefore the flow velocity of flue gas depends on the area of spray column in spray column.When flow velocity increases, tower diameter subtracts
Small, engineering cost reduces, and is conducive to heat transfer and the progress of mass transfer, but gas is too short in dwell time in the tower, will lead to absorption effect
Rate is lower.When flow velocity reduces, absorption tower diameter increases, and low flow velocity is unfavorable for heat and mass effect, and dropping liquid " is escaped in demister
The phenomenon that ease ", is obvious, but gas is long in dwell time in the tower, reacts more abundant.With reference to relevant design data, choose into
Gas velocity v is 1m/s.
Spray coverage rate refers to the degree of overlapping of spraying layer covering, is codetermined and is determined by spray cover height and spray angle.
Spray cover height refers to that, to the vertical height before broken after liquid film leaves nozzle, empirical value takes 1m or so.Spray covers in tower
Lid rate is 100%~300%.
The coupling of 3 air water systems
There is gas liquid binary system in the present invention, the coupled modes of gas-liquid systems are diversified, different gas-liquids
Endless form has a significant impact treatment effect.When realizing that liquid system runing time and gas system are run by design
Between best match, so that foul smell is adequately purified, but not will cause the waste of water resource and the energy.It is sprayed using atomization
When drenching liquid removal foul smell, when liquid-gas ratio is 1:100, reach optimization process efficiency, hydrogen sulfide average removal rate is 70% at this time
More than, the average removal rate of ammonia is 80% or more.
4 spray water process are coupled with ecological filter bed purification
Shower water is led to by water pump and water distributor it is ecological filter bed, using tubelet effluent technology, to ecological filter bed implementation
The coupling of water distribution and the waste gas purification processing of shower water.By using large-scale runner, traditional slight irrigation is replaced with Ф 4PE plastic syringe
The phenomenon that water dropper, solution irrigation system worked after operation a period of time, and impurities in water is frequently occluded douche, while coupling gas distribution
System carries out advanced treating to foul smell.Simultaneously in ecological filter bed arrangement ventilation duct and pressure inductor, gas flow is monitored, is calculated
The resistance of ducting is incorporated into PLC automatic control system, realizes the automatic control of the gas distribution mode and gas flow on ecological filter bed.
5 Fillers selections with it is biological reinforced
Biofilter couples deodorization with ecological filter bed, and the selection of biofilter material is most important, and practical incorporation engineering is ecology
Filter bed and biological filtering tower combined working select different types of biofilter material and carry out rational proportion mixing to it, while it is strong to implement microorganism
Change, realizes the efficient process of exhaust gas or foul smell.It is handled by biological filtering tower combined working with the ecological filter bed deodorization pilot test system that couples, ammonia,
Concentration of hydrogen sulfide and volatile organic compounds (ethyl acetate, benzene, toluene, ethylbenzene, butyl acetate), entirely reach discharge standard
It is required that.
Embodiment 1
Incorporation engineering is practical, inhales gas gathering mask using the cold process side designed in external gas gathering mask, convenient for stringing and blower
Installation, side inhale determining for the exhaust air rate of gas gathering mask and use control tachometric method, and starting uses workshop pressure sensor, foul smell
Detector connects PLC control system and automatically controls.Control parameter is as follows:
The pressure loss of exhaust hood is related with the angle of flare θ that VELOCITY DISTRIBUTION depends on exhaust hood.When θ angle is 30 °~60 °
When, the pressure loss reaches minimum.Comprehensively consider the tuyere velocity of cover, specific structure, the pressure loss, taking θ is 60 °.At this point, ζ0=
0.16
In formula:
ζ --- coefficient of partial resistance；
V --- cover one's intention as revealed in what one says speed, m/s；
ρ --- gas density, kg/m3。
Embodiment 2
The diameter of spray column is determined by exhaust gas volumn in tower, guarantees that gas flow rate is less than or equal to 4m/s in spray column.Due to setting
In meter, exhaust gas volumn is determining value, therefore the flow velocity of flue gas depends on the area of spray column in spray column.When flow velocity increases, tower
Diameter reduces, and engineering cost reduces, and is conducive to heat transfer and the progress of mass transfer, but gas is too short in dwell time in the tower, will lead to suction
The rate of producing effects is lower.When flow velocity reduces, absorption tower diameter increases, and low flow velocity is unfavorable for heat and mass effect, dropping liquid in demister
The phenomenon that " escape ", is obvious, but gas is long in dwell time in the tower, reacts more abundant.Case selection inlet air flow of the present invention
Fast v is 1m/s.Spray column internal diameter are as follows:
In formula: D --- spray column internal diameter, m；
Q --- gas flow, m3/s；
V --- gas flow rate, m2。
The arrangement of packed bed is considered in design, internal diameter takes 1.0m.
In order to sufficiently react gas with spray liquid, choosing coverage rate is 100%, chooses DN15 atomizer, price is just
Preferably, spray diameter 0.5m, atomized drop diameter is in 0.04mm, operating pressure 0.2MPa.
Embodiment 3
Ecological filter bed irrigation system is by water source, head pivot, water distributing network and douche and flow pressure control unit
Part and measuring instrumentss composition, connect with PLC automatic control system.
A. pipeline is divided into three-level: be individually main pipe, branch pipe and hollow billet, main pipe be set according to elevation, primary branch according to
According to the short side parallel with rectangular container short side be configured, hollow billet set according to the long side parallel with container
It sets, each branch pipe length of tube is all 6.0m, and spacing distance is 1.0m.
B. a hollow billet is all arranged in any avenue system object, and certain plant area installs a douche, and tubule outlet setting exists
In plant circular groove takes special punch to beat the hole of Ф 4 in hollow billet, so that flow straightener is connected with hollow billet, and in water outlet
Connect Ф 4PE tubule.
C. the selection of tubing: douche spacing distance 1.0m.Selecting main pipe model is PE63 grades of ethylene tubes, and nominal pressure is
1.0Mpa, outer diameter are 50mm, and wall thickness is 2mm；Selecting branch pipe model is PE63 ethylene tube, and nominal pressure is 1.0Mpa, outer diameter
50mm, wall thickness 2mm, it is 32mm that selection hollow billet model, which is PE63 grades of ethylene tube calibers, and wall thickness is 2.4mm, nominal pressure 0.6Mpa.
D. it controls to adjust the arrangement with filter device: gate valve, water meter being respectively arranged to branch pipe import, set in total dry import
Set one piece of water meter, a well strainer, a centrifugal type filter.
Embodiment 4
Since ecological filter bed top can cover ecological soil, Yao Liyong soil carries out last deodorization processing, soil deodorization
It is required that air velocity between 2mm~17mm/s, in order to meet the requirement of this low gas velocity, installs Ф on gas distributing pipeline
The gross porosity aeration head of 160mm, its main feature is that service area is big and is not easy to plug, service area 0.36m2/, air velocity is
16mm/s, air demand 20m3/h.Specific system arrangement is: arranging 4 air main pipes in container top, installs on main pipe
Gross porosity aeration head.
(1) air demand of every main pipe:
(2) the aeration head number is needed to be altogether
(3) the aerator number arranged on every main pipe:
(4) distribution capacity of each aerator:In the range of gross porosity aeration head.
Embodiment 5
Pass through actual measurement biological filtering tower combined working and the ecological filter bed ammonia concentration and volatile organic coupled in deodorization pilot test system
Gas (ethyl acetate, benzene, toluene, ethylbenzene, butyl acetate) all measures two Duplicate Samples and is averaged.Acquiring flow velocity is
1500L/min, gas when four minutes at acquisition air inlet, gas at the 8th minute at acquisition spray, the 12nd minute
When acquisition spray at gas, acquire respectively twice.Known by experimental data, the gaseous ammonia average content of air inlet are as follows: 3.58mg/
m3, gaseous ammonia average content is 1.55mg/m at gas outlet3.According to " emission standard for odor pollutants " (GB14554-93) it is found that
The average ammonia concentration 3.58mg/m of air inlet3Only reach national grade III Standard (4~5mg/m3), and the average ammonia after handling
Gas concentration 1.55mg/m3It can achieve the requirement of national grade ii standard.
The dense of five kinds of substances such as ethyl acetate known to standard curve is looked by the peak area at air inlet, gas outlet, spray hole
Degree.Specific method is sampling air inlet 2.5L gas, and spray hole samples 7.5L gas, and gas outlet samples 10L gas, tests second
The peak area of five kinds of substances such as acetoacetic ester, by the mark curve of each substance concentration that show that treated, experiment take two it is flat
Row sample.By above-mentioned data it is concluded that biological filtering tower combined working to ethyl acetate, benzene, toluene, butyl acetate treatment effect
Fairly obvious, treatment effeciency is up to 80% or more, but more general to the treatment effect of ethylbenzene and benzene gas, and ethylbenzene and benzene are going out
It may be because detecting the benzene and ethylbenzene in air that port concentration, which is greater than concentration at spray,.Biological filtering tower combined working coupling is ecological filter bed
Treatment effeciency to total volatile organism totality is 81%, and it is one that explanation, which handles volatile organic matter gas with biological filtering tower combined working,
Effective method.
Embodiment 5
Waste liquid exhaust treatment system, including a spray column 13 and the biofilter being connect with the spray column 13, system
The sensing device being connected and middle control portion are inside installed, are equipped with primary filtration component inside spray column 13, spray column 13 is connected with
It intakes road and air inlet path, gas circuit is connected to spray column by water outlet path and out with reactive tank 1, and biofilter is interior equipped with depth-type filtration
Component.
Spray column top spray assemblies, spray assemblies include and match the spray head of connection, spray assemblies and external water inlet pipe
17 connections.
Primary filtration component includes the first filter layer 19 of 18 lower section of the packing layer 18 that middle part is arranged and described filler layer.
It sprays tower bottom and connects a water pump 20, water pump 20 connects an outlet pipe 16, in outlet pipe 16 and biofilter
It irrigates layer 2 to be connected to, irrigates 2 arrival end of layer and overflow pipe 4 is installed.
It is inside equipped with the gas gathering mask of an absorption and compressed exhaust gas, gas gathering mask passes through one air pump of piping connection, air pump and spray column
13 connect, and exhaust gas air inlet end is set to below primary filtration component in spray column.
Spray column top connects an escape pipe 15, and the vent line layer 9 in 15 free end of escape pipe and biofilter connects
It is logical.
Water process route from top to bottom and gas disposal route from bottom to top, 1 bottom of reactive tank paving are equipped in reactive tank 1
Equipped with Drainage Division, ventilating part, imbibition portion, interlayer and vegetable layer are arranged in sequence above Drainage Division.
Irrigating layer 2 includes that array connects and be laid on the irrigation formula spray head of vegetable layer upper surface, irrigates layer 2 and sewage inputs
End connection.
Interlayer includes that array has the haydite layer 7 being laid on the steel plate and steel plate of through-hole, is equipped with haydite and coconut palm in haydite layer 7
Chaff.
Imbibition portion includes swelling layer 8, and the environment protection ball crossed by microorganism is equipped in swelling layer 8, and the environment protection ball is equipped with bee
Socket aperture structure.
Embodiment 6
Integrated roof greening and the ecological filter bed Fillers selection and microbial augmentation of exhaust-gas treatment.Including plant bed root system
Ecological soil layer is biological reinforced, the obligate microbial augmentation of haydite layer, environment protection ball carrier layer are obligate microbial immobilized.
1 plant bed root system ecological soil layer is biological reinforced
Suitable floristics, including canopy plant catharanthus roseus, bluegrass is selected to spend, herbaceous layer plant carpet grass, dog tooth
Root etc. constructs the vegetable layer of roof greening, designs graceful landscape.The planting matrix of vegetable layer select straw compost, dregs of a decoction charcoal,
Perlite, vermiculite etc., and determine suitable ratio.Dregs of a decoction charcoal has good microcellular structure and adsorptivity after modified
Can, become the good carrier and culture medium of microorganism together with the above material.Acquire deodorization biological filtering tower combined working filtrate sample, screening point
It include that bacillus, lactobacillus acidophilus, lactobacillus plantarum, saccharomycete, actinomyces etc. are a variety of from VOCs treatment high efficiency flora
Bacterium powder is made after expanding culture in high-activity microorganism flora, mixes plant bed planting matrix by a certain percentage, constructs exhaust-gas treatment
Biological reinforced ecological soil layer realizes the efficient removal to ingredients such as VOC, greases in exhaust gas.
The 2 obligate microbial augmentation of haydite layer
It is ecological filter bed to use haydite as middle layer, a certain proportion of calcium carbonate grit group is mixed by the haydite of certain partial size
At.Carrier is done with coco bran, the Thiobacillus thioxidans by separation and Extraction in Acid mine and sulfur-bearing hot spring and sulfide-oxidizing enzyme is inoculated with, mixes
Enter haydite layer, reaches the efficient reinforcing removal to hydrogen sulfide in exhaust gas, and realize the buffering of acidization.
3 environment protection ball carrier layers are obligate microbial immobilized
Exhaust gas passes first into environment protection ball carrier layer from ecological filter bed bottom, due to the hydrophobicity of conventional environment protection ball, micro- life
Object not easy to be filmed, slowly, lower to the treatment effeciency of exhaust gas, the present invention selects proprietary honeycomb environment protection ball, and to ring for starting
It protects ball carrier layer and implements microbial immobilized processing.Screening separation nitrobacteria and denitrifying bacteria first expand culture as height
Concentration bacterium solution；Then 10-15% (mass fraction) polyvinyl alcohol (PVA) 80 DEG C dissolved and 3-5% (mass fraction) seaweed
Sour sodium (CA) solution is uniformly mixed, and is stirred evenly after its cooling with bacterium solution mixing, is poured into the container for filling pH7.4 saturation boric acid solution
In, container is immersed in ice bath cylinder, then ice bath liquid is perfused by the peristaltic pump for controlling certain revolving speed to honeycomb environmental protection
In ball.It is microbial immobilized but not influence to ventilate in environment protection ball, substantially increase the removal of ammonia nitrogen in exhaust gas.
According to Target exhaust and its pollutant kind, emission compliance requirement, determines air quantity and residence time, access exhaust gas.
Into in biologic packing material hole net, it is attached to the microorganism on biologic packing material and adsorption-decomposition function is carried out to harmful substance in gas, lead to
Three layers of different microbial augmentation biologic packing material are crossed, a variety of different microorganisms absorb different harmful substances in waste gas decomposition respectively,
Reach the hierarchical layered processing to pollutant；Root system of plant absorbs the polluter adsorbed in water and in filler, obtains pollutant
To further purification；Plant stem-leaf can absorb again and purification gas in CO2 and remaining harmful substance, obtain exhaust gas more thoroughly
Deodourizing, pollutants removal rate reach 98%, qualified discharge；Plant manufactures organic matter nutriment simultaneously, reaches to entire
The self―sustaining of the ecological filter bed ecosystem.
(1) exhaust gas passes through the balloon borne body layer of ecological filter bed bottom environmental protection, the nitrobacteria in immobilized microorganism matrix first
With under the action of denitrifying bacteria etc., the ammonia nitrogen in exhaust gas is removed first, is readily soluble in the small-molecule substance of water quilt simultaneously
Removal.
(2) then exhaust gas is by the haydite layer of middle layer, and due to the suction-operated of haydite and coco bran etc., and vulcanization is carefully
The effect of bacterium, Thiobacillus etc., the stink substancess such as hydrogen sulfide, mercaptan are adsorbed, and are converted, and reach removal effect.
(3) finally, exhaust gas is by remaining organic matter and other compositions after two packing layers, into ecological soil layer,
Under the action of enriching microbe species and plant present in this layer of filler, absorption degradation removal is obtained；Including part titanium dioxide
Carbon is also absorbed under the action of plant, and manufacture is at plant and the nutriment of soil horizon, for maintaining three micro- lifes of packing layer
Object existence, while having the function that reduction of greenhouse gas discharge.
Embodiment 7
As shown in Figure 1, integrated roof exhaust-gas treatment is plant bed, including reactive tank 1, it is equipped with from top to bottom in reactive tank 1
Water process route and gas disposal route from bottom to top, 1 bottom of reactive tank is equipped with Drainage Division, and the top of Drainage Division is sequentially set
There are ventilating part, imbibition portion, interlayer and vegetable layer, vegetable layer top, which is equipped with, irrigates layer 2, sensing device is installed in reactive tank,
Sensing device is connect with the control system of whole pipeline.Control system includes control circuit and power supply circuit, is the prior art, tool
Body structure does not repeat.
Irrigating layer 2 includes that array connects and be laid on the irrigation formula spray head of vegetable layer upper surface, irrigates layer 2 and sewage inputs
End connection.
Sewage input terminal and the connection tube for irrigating layer 2 are equipped with overflow pipe 4.
Vegetable layer includes tree skin layer 5 and the soil horizon below the plant and plant on upper layer.
Interlayer includes that array has the haydite layer 7 being laid on the steel plate and steel plate of through-hole, is equipped with haydite and coconut palm in haydite layer 7
Chaff.
Imbibition portion includes swelling layer 8, and the environment protection ball crossed by microorganism is equipped in swelling layer 8, and environment protection ball is equipped with honeycomb fashion
Aperture structure.
Ventilating part includes vent line layer 9, and array has the aeration head 10 for spraying foul smell upwards in vent line layer 9.
Drainage Division includes discharge pipe line layer 11, and discharge pipe line layer 11 absorbs the lower water seeped in top, and discharge pipe line layer 11 connects
It is connected to drain valve.
Sensing device includes pressure sensor device, flow sensor and humidity sensor.
Humidity sensor is mounted in vegetable layer, and the flow sensor, which is mounted on, irrigates in layer.
Embodiment 8
Integrated roof greening and the ecological filter bed biological reinforcing technology of exhaust-gas treatment, comprising the following steps:
(1) the plant bed water inlet of design construction integration roof greening and exhaust-gas treatment and drainage system, air inlet system first
The plant bed frame structure of system, ecological filtrate.By 2.5-3.5m2/m3The ratio between land area and exhaust gas are designed installation, filler
Thickness degree about 60cm, for exhaust gas by speed about 5-10mm/s, exhaust gas and packing layer time of contact are 50-100s.
(2) secondly, filling out immobilized microorganism environment protection ball carrier, thickness about 20cm in ecological filter bed bottom paving.Specific method
Are as follows: screening separation nitrobacteria and denitrifying bacteria first, expanding culture is high concentration bacterium solution；Then 80 DEG C or so are dissolved
10-15% (mass fraction) polyvinyl alcohol (PVA) and 3-5% (mass fraction) sodium alginate (CA) solution are uniformly mixed, to it
It is stirred evenly after cooling with bacterium solution mixing, pours into the container for filling pH7.4 saturation boric acid solution, container is immersed in ice bath cylinder；
Then ice bath liquid is perfused by the peristaltic pump for controlling certain revolving speed into honeycomb environment protection ball.
(3) then, hollow out stainless steel separator is placed on environment protection ball carrier, is laid with haydite layer, thickness about 20cm on it.
The coco bran that microbial inoculant is mixed in haydite layer accounts for about the 1/5 of haydite layer dosage, and sulfide-oxidizing enzyme, Thiobacillus separate simultaneously through screening
After domestication culture, inoculum concentration about 1*108/ g coco bran.
(4) then, ecological soil layer, thickness about 20cm are laid with more than haydite layer.Select straw compost, dregs of a decoction biology
The filler as ecological soil layer such as charcoal, perlite, vermiculite, wherein inoculation efficacious microbial colony includes bacillus, acidophilus
Lactobacillus, lactobacillus plantarum, saccharomycete, actinomyces etc., inoculum concentration about 5*108/ g filler.
(5) finally, planting shrub and herbaceous plant in ecological soil layer, including canopy plant catharanthus roseus, bluegrass are spent,
Herbaceous layer plant carpet grass, Bermuda grass etc., based on carpetweed, account for about the 80% of the gross area.
(1) in addition, interchangeable organization plan are as follows: packing layer thickness about 45cm.
(2) immobilized microorganism environment protection ball support layer thickness about 15cm.
(3) intermediate to be laid with haydite thickness degree about 15cm.
(4) ecological soil thickness degree about 15cm.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. waste liquid exhaust treatment system, including a spray column (13) and the biofilter being connect with the spray column (13), institute
It states and the sensing device being connected and middle control portion is installed in system, which is characterized in that be equipped with inside the spray column (13) preliminary
Filter assemblies, the spray column (13) are connected with into water road and air inlet path, and the spray column and the reactive tank (1) pass through water outlet
Road is connected to gas circuit out, and depth-type filtration component is equipped in the biofilter.
2. waste liquid exhaust treatment system according to claim 1, which is characterized in that spray column top spray assemblies,
The spray assemblies include and match the spray head of connection, and the spray assemblies are connect with external water inlet pipe (17).
3. waste liquid exhaust treatment system according to claim 1 or 2, which is characterized in that the primary filtration component includes
The packing layer (18) and the first filter layer (19) below described filler layer (18) of middle part setting.
4. waste liquid exhaust treatment system according to claim 1, which is characterized in that the spray tower bottom connects a water pump
(20), water pump (20) connection one outlet pipe (16), the outlet pipe (16) connect with the irrigation layer (2) in biofilter
Logical, irrigation layer (2) arrival end is equipped with overflow pipe (4).
5. waste liquid exhaust treatment system according to claim 1, which is characterized in that be equipped with one in system and absorb and compress useless
The gas gathering mask of gas, the gas gathering mask is by one air pump of piping connection, and the air pump is connect with the spray column (13), in spray column
Exhaust gas air inlet end is set to below the primary filtration component.
6. waste liquid exhaust treatment system according to claim 1 or 5, which is characterized in that the spray column top connection one
Escape pipe (15), escape pipe (15) free end are connected to the vent line layer (9) in biofilter.
7. waste liquid exhaust treatment system according to claim 1, which is characterized in that be equipped in the reactive tank (1) by upper
Downward water process route and gas disposal route from bottom to top, reactive tank (1) bottom is equipped with Drainage Division, the draining
Ventilating part, imbibition portion, interlayer and vegetable layer are arranged in sequence above portion.
8. waste liquid exhaust treatment system according to claim 7, which is characterized in that the irrigation layer (2) includes that array connects
The irrigation formula spray head of vegetable layer upper surface is connect and be laid on, layer (2) is irrigated and is connect with sewage input terminal.
9. waste liquid exhaust treatment system according to claim 7, which is characterized in that the interlayer includes that array has through-hole
The haydite layer (7) being laid on steel plate and steel plate, the haydite layer (7) is interior to be equipped with haydite and coco bran.
10. waste liquid exhaust treatment system according to claim 7, which is characterized in that the imbibition portion includes swelling layer
(8), the environment protection ball crossed by microorganism is equipped in the swelling layer (8), the environment protection ball is equipped with cellular aperture structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910147385.7A CN109821397A (en) | 2019-02-27 | 2019-02-27 | Waste liquid exhaust treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910147385.7A CN109821397A (en) | 2019-02-27 | 2019-02-27 | Waste liquid exhaust treatment system |
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| CN109821397A true CN109821397A (en) | 2019-05-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110902938A (en) * | 2019-11-07 | 2020-03-24 | 嘉兴职业技术学院 | Fungus-algae immobilized embedded water quality purification device adopting biomembrane method |
| CN112138508A (en) * | 2020-09-08 | 2020-12-29 | 同济大学 | Purification system and purification method for sulfur-containing organic waste gas |
| CN114053864A (en) * | 2021-12-15 | 2022-02-18 | 青岛万慧源环保科技有限公司 | Treatment method of waste gas containing organic pollutants |
-
2019
- 2019-02-27 CN CN201910147385.7A patent/CN109821397A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110902938A (en) * | 2019-11-07 | 2020-03-24 | 嘉兴职业技术学院 | Fungus-algae immobilized embedded water quality purification device adopting biomembrane method |
| CN112138508A (en) * | 2020-09-08 | 2020-12-29 | 同济大学 | Purification system and purification method for sulfur-containing organic waste gas |
| CN112138508B (en) * | 2020-09-08 | 2021-11-16 | 同济大学 | Purification system and purification method for sulfur-containing organic waste gas |
| CN114053864A (en) * | 2021-12-15 | 2022-02-18 | 青岛万慧源环保科技有限公司 | Treatment method of waste gas containing organic pollutants |
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