CN205109392U - Absorption process and biological method combined effect handle device of VOC waste gas - Google Patents
Absorption process and biological method combined effect handle device of VOC waste gas Download PDFInfo
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- CN205109392U CN205109392U CN201520912398.6U CN201520912398U CN205109392U CN 205109392 U CN205109392 U CN 205109392U CN 201520912398 U CN201520912398 U CN 201520912398U CN 205109392 U CN205109392 U CN 205109392U
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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
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- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
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Abstract
The utility model discloses an absorption process and biological method combined effect handle device of VOC waste gas, include absorption liquid configuration groove, absorption tower, waste liquid absorption tank and the compound biological oxidation pond that declines, wherein absorption liquid configuration inslot is equipped with the agitator, and the bottom in absorption liquid configuration groove is equipped with the export to absorption liquid configuration groove through the pump sending pipeline with the bottom intercommunication on absorption tower, the top on absorption tower be equipped with the waste gas pipeline with the compound biological oxidation pond's that declines lower part intercommunication, the bottom on absorption tower pass through the pipeline with waste liquid absorption tank intercommunication, the compound biological oxidation pond that declines is closed structure, and its inside is separated to become biological dripping through a baffle and is strained unit and biofiltration unit. This patent has adopted " increase and dissolve preliminary treatment + combined type biological oxidation " technique, and waste gas discharge to reach standard has not only been guaranteed to multiple technical module combination technique, has reduced the load and the scale of investment of subsequent " combined type biological oxidation " technology moreover.
Description
Technical field
The utility model is the device of a kind of absorption process and bioanalysis synergy process VOC waste gas, belongs to Petrochemical pollution air treatment facility field.
Background technology
In petrifaction sewage Treatment stations, the waste gas of each water treatment technology unit loss has the feature of " large-minded, complicated, density unevenness, fluctuation is large ".The particularly waste gas of the VOCs of Wastewater Treatment Field in Oil Refinery loss, owing to containing high concentration hydro carbons, directly entering biological treatment device can make waste gas adhere at biofilm surface, and make biological membrane anaerobic, mortality comes off, simultaneously by the impact of water water quality in factory, also there will be the wide fluctuations of sulfide and Benzene series Concentrations, have influence on the normal operation of follow-up biological treatment device for exhaust gas, therefore, simple employing bioanalysis is difficult to reach desirable treatment effect, needs to carry out pretreatment to the high concentration of hydrocarbon in waste gas.
Utility model content
The purpose of this utility model is to provide the device of a kind of absorption process and bioanalysis synergy process VOC waste gas, kinds of processes modular combination technology not only ensure that waste gas qualified discharge, and decreases load and the scale of investment of follow-up " combined biological oxidation " technique.
The purpose of this utility model carrys out specific implementation by the following technical programs:
The device of a kind of absorption process and bioanalysis synergy process VOC waste gas, comprise absorbing liquid configured slot, absorption tower, waste liquid absorption cell and combined type microbiological oxidation pond, agitator is provided with in wherein said absorbing liquid configured slot, the bottom of absorbing liquid configured slot is provided with outlet, and absorbing liquid configured slot is communicated with by the bottom of pump tubing length with described absorption tower; The top on described absorption tower is provided with exhaust pipe and is communicated with the bottom in described combined type microbiological oxidation pond; The bottom on described absorption tower is communicated with described waste liquid absorption cell by pipeline; Described combined type microbiological oxidation pond is enclosed construction, its inside becomes bio-trickling unit and biofiltration unit by a baffle for separating, retain space between described dividing plate and the inner top in described combined type microbiological oxidation pond to be communicated with to make the headroom between described biofiltration unit with described bio-trickling unit, the inside of described biofiltration unit and described bio-trickling unit is respectively equipped with carrier.
Preferably, the pump tubing length between described absorbing liquid configured slot and described absorption tower is provided with absorbing liquid measuring pump.
Preferably, the bottom of described bio-trickling unit is communicated with described exhaust pipe, and the bottom of described biofiltration unit is communicated with aiutage by discharge duct.
Preferably, the bottom of described bio-trickling unit is communicated with the second circulation line, described second circulation line is provided with the second circulating pump, described second circulating pump is by the liquid pumping in the second circulation line to the top in described combined type microbiological oxidation pond, and described second circulation line is connected with several second shower nozzles be distributed in above described bio-trickling unit and described biofiltration unit.
Preferably, the bottom on described absorption tower is communicated with the first circulation line, described first circulation line is provided with the first circulating pump, described first circulating pump is by the liquid pumping in the first circulation line to the top on described absorption tower, and described first circulation line is connected with the first shower nozzle being positioned at described absorption tower inner top.
Preferably, the middle part on described absorption tower is connected with exhaust steam passage, and described exhaust steam passage is provided with the first blower fan.
Preferably, on described absorption tower, the bottom of described biofiltration unit, described bio-trickling unit is respectively equipped with blowoff line.
Preferably, described blowoff line is connected to described waste liquid absorption cell.
Preferably, described waste liquid absorption cell is connected with treatment unit for waste water by pipeline, and is provided with dredge pump on pipeline.
Technology that this patent have employed " solubilising pretreatment+combined biological oxidation ", kinds of processes modular combination technology not only ensure that waste gas qualified discharge, and decreases load and the scale of investment of follow-up " combined biological oxidation " technique.
Biodegradable surfactant is adopted to be configured to absorbing liquid in solubilising pretreating process, the hydrocarbon in waste gas can be made to form stable microemulsion in absorption process, and under the effect of auxiliary agent, absorbing liquid is to the further solubilising of hydrocarbon, absorb saturated useless absorbing liquid and enter the degraded of subsequent wastewater treatment unit, the discharged wastewater met the national standard after process.
" combined biological oxidation " is the assembled technological integrating bio-trickling (mainly for the treatment of hydrophily pollutant) and biofiltration (mainly for the treatment of hydrophobic contaminant) two kinds of biologic treating techniques.A filter unit of this system of example and filter element adopt inert filler and proprietary Biomedia respectively, the parameter such as specification, size corresponding according to the concrete operating mode in scene (as gas componant, concentration etc.) design.
The beneficial effect that the technical scheme of the utility model embodiment is brought is as follows:
1, petrochemical industry sewage farm atm number, middle and high concentration is particularly suitable for containing benzene homologues VOC master gas operating mode.
2, total system takes modularized design, and floor space is little.
3, select advanced absorption techniques, the waste gas containing multiple pollutant can be processed.Avoid the problem that chemical Treatment can produce secondary pollution, also solve that Oil-gas Separation process coalescence material easily blocks, device can not the problem of long-term operation.
4, high concentration is effectively processed containing VOCs gas, improve the impact resistance of follow-up foul gas biological treating device, ensure the stable operation of foul gas biological treating device.
5, the useless absorbing liquid biochemical of discharge is good, can degrade, can not increase the load of existing sewage treatment unit at subsequent wastewater treatment unit.
Accompanying drawing explanation
According to drawings and embodiments the utility model is described in further detail below.
Fig. 1 is theory structure schematic diagram of the present utility model.
Detailed description of the invention
As shown in Figure 1, the device of a kind of absorption process described in the utility model embodiment and bioanalysis synergy process VOC waste gas, comprise absorbing liquid configured slot 1, absorption tower 2, waste liquid absorption cell 3 and combined type microbiological oxidation pond 4, agitator 11 is provided with in wherein said absorbing liquid configured slot, the bottom of absorbing liquid configured slot 1 is provided with outlet, and absorbing liquid configured slot 1 is communicated with the bottom on described absorption tower 2 by pump tubing length 12; The top on described absorption tower 2 is provided with exhaust pipe 21 and is communicated with the bottom in described combined type microbiological oxidation pond; The bottom on described absorption tower 2 is communicated with described waste liquid absorption cell 3 by pipeline; Described combined type microbiological oxidation pond 4 is enclosed construction, its inside becomes biofiltration unit 42 and bio-trickling unit 41 by a baffle for separating, retain space between described dividing plate 43 and the inner top in described combined type microbiological oxidation pond 4 to be communicated with to make the headroom between described bio-trickling unit 41 with described biofiltration unit 42, the inside of described bio-trickling unit 41 and described biofiltration unit 42 is respectively equipped with carrier.
Preferably, the pump tubing length 12 between described absorbing liquid configured slot 1 and described absorption tower 2 is provided with absorbing liquid measuring pump 13.
Preferably, the bottom of described bio-trickling unit 41 is communicated with described exhaust pipe 21, and the bottom of described biofiltration unit 42 is communicated with aiutage 6 by discharge duct.
Preferably, the bottom of described bio-trickling unit 41 is communicated with the second circulation line 44, described second circulation line 44 is provided with the second circulating pump 45, described second circulating pump 45 is by the liquid pumping in the second circulation line 44 to the top in described combined type microbiological oxidation pond, and described second circulation line is connected with several second shower nozzles 46 be distributed in above described bio-trickling unit and described biofiltration unit.
Preferably, the bottom on described absorption tower is communicated with the first circulation line 22, described first circulation line 22 is provided with the first circulating pump 23, described first circulating pump 23 is by the liquid pumping in the first circulation line 22 to the top on described absorption tower 2, and described first circulation line 22 is connected with the first shower nozzle 24 being positioned at described absorption tower inner top.
Preferably, the middle part on described absorption tower 2 is connected with exhaust steam passage 25, and described exhaust steam passage 25 is provided with the first blower fan 26.
Preferably, on described absorption tower 2, the bottom of described bio-trickling unit 41, described biofiltration unit 42 is respectively equipped with blowoff line.
Preferably, described blowoff line is connected to described waste liquid absorption cell 3.
Preferably, described waste liquid absorption cell 3 is connected with treatment unit for waste water 5 by pipeline, and on pipeline, be provided with dredge pump 31.
Technology that this patent have employed " solubilising pretreatment+combined biological oxidation ", kinds of processes modular combination technology not only ensure that waste gas qualified discharge, and decreases load and the scale of investment of follow-up " combined biological oxidation " technique.
Biodegradable surfactant is adopted to be configured to absorbing liquid in solubilising pretreating process, the hydrocarbon in waste gas can be made to form stable microemulsion in absorption process, and under the effect of auxiliary agent, absorbing liquid is to the further solubilising of hydrocarbon, absorb saturated useless absorbing liquid and enter the degraded of subsequent wastewater treatment unit, the discharged wastewater met the national standard after process.
" combined biological oxidation " is the assembled technological integrating bio-trickling (mainly for the treatment of hydrophily pollutant) and biofiltration (mainly for the treatment of hydrophobic contaminant) two kinds of biologic treating techniques.A filter unit of this system of example and filter element adopt inert filler and proprietary Biomedia respectively, the parameter such as specification, size corresponding according to the concrete operating mode in scene (as gas componant, concentration etc.) design.
One, solubilising pretreatment unit operation principle
Absorbent situ configuration: by recipe requirements, water, surfactant and cosurfactant is added in proportion in configured slot, at the absorbing liquid of absorbing liquid configured slot configuration certain volume, send into absorption tower absorbing liquid continuously by absorbing liquid measuring pump and store section, absorption tower storage section absorbing liquid is through absorbing liquid circulating pump circulated sprinkling.
Concentration range is at 1000 ~ 1500mg/m
3interior high concentration hydrocarbon-contained waste gas enters in the middle part of absorption tower, and with the absorbing liquid counter current contacting of absorption tower top spray, hydrocarbon is absorbed in absorbing liquid, and the gas after process, by after tower top demister removing moisture, enters follow-up " combined biological oxidation " unit.
After absorbing liquid absorption is saturated, the useless absorbing liquid of generation adopts the mode of continuous blow-down to enter waste collection groove.Treatment unit for waste water is pumped into by discharging of waste liquid after collecting certain liquid level.
Absorbing liquid is the absorption process utilizing microemulsion principle of absorption to complete.Microemulsion is that one is made up of water, oil and amphiphilic species (molecule), is solution system stable on a kind of optical isotropy, thermodynamics.
Microemulsion is usually by component spontaneous generations under suitable proportioning such as surfactant, cosurfactant, oil, water or salt solution, its structure has three kinds: oil-in-water type (O/W), water-in-oil type (W/O) and oil, water bicontinuous (B.C), O/W type and w/o type microemulsion can transform mutually gradually with change of moisture content.
VOC gas is equivalent to " oil " phase in microemulsion composition, and this microemulsion system is that absorbent is being formed in containing the waste gas absorption process of VOC.Like this, the solution be made up of components such as surfactant, cosurfactant, water or salt solution just becomes the absorbing liquid of VOC gas.The absorption process of absorbing liquid to VOC gas i.e. the forming process of microemulsion, the character according to each component forms the microemulsion system of different structure.
The surfactant of this choice of technology has good biological degradability, makes to absorb saturated useless absorbing liquid, can directly enter biological wastewater treatment unit, and for microorganism provides part carbon source, nitrogenous source, processing procedure does not have " three wastes " produces.
Two, " combined biological oxidation " principle
" combined biological oxidation " device is made up of bio-trickling unit and biofiltration unit two part.Gas contacts fully with the bio-trickling medium through circulated sprinkling.Hydrophily pollutant component in waste gas, part catch by the microbe from adhering group of dripping on filter medium digestion, another part then dissolves and falls into the trickling filter of unit bottom with a filtrate, degrades thoroughly in trickling filter containing a large amount of plankton by the polluter captured.In the process, in waste gas, the water miscible pollutant component such as part hydrogen sulfide and ammonia is removed further.In biofiltration unit, with the addition of the benzene degradation bacteria of programmed screening.Waste gas fully contacts with the biological filter media ball being loaded with benzene degradation bacteria of regular humidification, in gas, slightly solubility pollutes component by benzene degradation bacteria interception absorption also digestion further in porous media and medium, and macromolecule, the water-soluble poor VOC compositions such as toluene, dimethylbenzene, styrene are fully degraded at this element.These benzene degradation bacteria are that the oxidation operations such as large molecule or baroque benzene are decomposed into the inorganic matters such as simple water, carbon dioxide as the necessary matrix of its growth and breeding by the organic matter that make use of in waste gas.Achieve the further process to benzene homologues in waste gas.
Three, effect
Scheme provided by the invention, provides effective processing method for high concentration VOCs exhaust-gas treatment, adds absorption tower, achieve the pollutant component that segment processing is different at " combined biological oxidation " device leading portion, can qualified discharge after making exhaust-gas treatment.Experiment proves: after adding this processing mode, integrated artistic NMHC clearance can reach 95%, and performs emission standard for odor pollutants GB14554-93, GB31570-2015, GB31571-2015.
The beneficial effect that the technical scheme of the utility model embodiment is brought is as follows:
1, petrochemical industry sewage farm atm number, middle and high concentration is particularly suitable for containing benzene homologues VOC master gas operating mode.
2, total system takes modularized design, and floor space is little.
3, select advanced absorption techniques, the waste gas containing multiple pollutant can be processed.Avoid the problem that chemical Treatment can produce secondary pollution, also solve that Oil-gas Separation process coalescence material easily blocks, device can not the problem of long-term operation.
4, high concentration is effectively processed containing VOCs gas, improve the impact resistance of follow-up foul gas biological treating device, ensure the stable operation of foul gas biological treating device.
5, the useless absorbing liquid biochemical of discharge is good, can degrade, can not increase the load of existing sewage treatment unit at subsequent wastewater treatment unit.
Claims (9)
1. the device of an absorption process and bioanalysis synergy process VOC waste gas, it is characterized in that, comprise absorbing liquid configured slot, absorption tower, waste liquid absorption cell and combined type microbiological oxidation pond, agitator is provided with in wherein said absorbing liquid configured slot, the bottom of absorbing liquid configured slot is provided with outlet, and absorbing liquid configured slot is communicated with by the bottom of pump tubing length with described absorption tower; The top on described absorption tower is provided with exhaust pipe and is communicated with the bottom in described combined type microbiological oxidation pond; The bottom on described absorption tower is communicated with described waste liquid absorption cell by pipeline; Described combined type microbiological oxidation pond is enclosed construction, its inside becomes bio-trickling unit and biofiltration unit by a baffle for separating, retain space between described dividing plate and the inner top in described combined type microbiological oxidation pond to be communicated with to make the headroom between described biofiltration unit with described bio-trickling unit, the inside of described biofiltration unit and described bio-trickling unit is respectively equipped with carrier.
2. the device of a kind of absorption process as claimed in claim 1 and bioanalysis synergy process VOC waste gas, is characterized in that,
Pump tubing length between described absorbing liquid configured slot and described absorption tower is provided with absorbing liquid measuring pump.
3. the device of a kind of absorption process as claimed in claim 2 and bioanalysis synergy process VOC waste gas, is characterized in that,
The bottom of described bio-trickling unit is communicated with described exhaust pipe, and the bottom of described biofiltration unit is communicated with aiutage by discharge duct.
4. the device of a kind of absorption process as claimed in claim 3 and bioanalysis synergy process VOC waste gas, is characterized in that,
The bottom of described bio-trickling unit is communicated with the second circulation line, described second circulation line is provided with the second circulating pump, described second circulating pump is by the liquid pumping in the second circulation line to the top in described combined type microbiological oxidation pond, and described second circulation line is connected with several second shower nozzles be distributed in above described bio-trickling unit and described biofiltration unit.
5. the device of a kind of absorption process as claimed in claim 1 and bioanalysis synergy process VOC waste gas, is characterized in that,
The bottom on described absorption tower is communicated with the first circulation line, described first circulation line is provided with the first circulating pump, described first circulating pump is by the liquid pumping in the first circulation line to the top on described absorption tower, and described first circulation line is connected with the first shower nozzle being positioned at described absorption tower inner top.
6. the device of a kind of absorption process as claimed in claim 1 and bioanalysis synergy process VOC waste gas, is characterized in that,
The middle part on described absorption tower is connected with exhaust steam passage, and described exhaust steam passage is provided with the first blower fan.
7. the device of a kind of absorption process as claimed in claim 1 and bioanalysis synergy process VOC waste gas, is characterized in that,
On described absorption tower, the bottom of described biofiltration unit, described bio-trickling unit is respectively equipped with blowoff line.
8. the device of a kind of absorption process as claimed in claim 7 and bioanalysis synergy process VOC waste gas, is characterized in that,
Described blowoff line is connected to described waste liquid absorption cell.
9. the device of a kind of absorption process as claimed in claim 1 and bioanalysis synergy process VOC waste gas, is characterized in that,
Described waste liquid absorption cell is connected with treatment unit for waste water by pipeline, and is provided with dredge pump on pipeline.
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| CN105817137A (en) * | 2016-05-16 | 2016-08-03 | 东莞市环境科学研究所 | Composite biological bed purifying equipment for VOCs |
| CN105861379A (en) * | 2016-05-16 | 2016-08-17 | 江南大学 | Method for preparing algae powder by drying peculiar smell-free blue algae |
| CN107551763A (en) * | 2016-09-18 | 2018-01-09 | 叶涛 | The environment-friendly treatment method and its equipment of a kind of organic compounds |
| CN108246044A (en) * | 2016-12-29 | 2018-07-06 | 中国石油天然气集团公司 | A kind of processing method for the exhaust gas containing VOCs that sewage farm loss goes out |
| CN108246064A (en) * | 2016-12-29 | 2018-07-06 | 中国石油天然气集团公司 | A kind of comprehensive purifying method for the exhaust gas containing VOCs that sewage farm loss goes out |
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2015
- 2015-11-16 CN CN201520912398.6U patent/CN205109392U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817137A (en) * | 2016-05-16 | 2016-08-03 | 东莞市环境科学研究所 | Composite biological bed purifying equipment for VOCs |
| CN105861379A (en) * | 2016-05-16 | 2016-08-17 | 江南大学 | Method for preparing algae powder by drying peculiar smell-free blue algae |
| CN105817137B (en) * | 2016-05-16 | 2018-06-15 | 东莞市环境科学研究所 | A kind of compound bio bed cleaning equipment of VOCs |
| CN105861379B (en) * | 2016-05-16 | 2019-03-19 | 江南大学 | A kind of dry preparation algae powder method of free from extraneous odour cyanobacteria |
| CN107551763A (en) * | 2016-09-18 | 2018-01-09 | 叶涛 | The environment-friendly treatment method and its equipment of a kind of organic compounds |
| CN108246044A (en) * | 2016-12-29 | 2018-07-06 | 中国石油天然气集团公司 | A kind of processing method for the exhaust gas containing VOCs that sewage farm loss goes out |
| CN108246064A (en) * | 2016-12-29 | 2018-07-06 | 中国石油天然气集团公司 | A kind of comprehensive purifying method for the exhaust gas containing VOCs that sewage farm loss goes out |
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