CN102507273A - Device and method for sampling greenhouse gas released from non-aeration unit of sewage treatment - Google Patents
Device and method for sampling greenhouse gas released from non-aeration unit of sewage treatment Download PDFInfo
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- CN102507273A CN102507273A CN2011103031258A CN201110303125A CN102507273A CN 102507273 A CN102507273 A CN 102507273A CN 2011103031258 A CN2011103031258 A CN 2011103031258A CN 201110303125 A CN201110303125 A CN 201110303125A CN 102507273 A CN102507273 A CN 102507273A
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Abstract
The inventive device for sampling greenhouse gas released from a non-aeration treatment process of sewage comprises a floating body, a gas collection tank, a temperature monitoring assembly and a gas sampling assembly, wherein the floating body is fixed at the lower part of a gas collection barrel via a floating body baffle on the gas collection tank; the gas sampling interface at the upper end of the gas collection tank is in sequential connection with a three-way valve, a small-sized gas sampling pump and a gas sampling bag by a silicone pipe; and the wire connecting a temperature probe, the wire connecting a pressure probe and the wire connecting a agitator pass through the rubber plug on the gas collection tank to get connected with a digital display thermometer, a high-precision digital barometer and an agitation apparatus power supply respectively. The inventive device has simple structure, good sealing, convenient operation, and representative sampled gas, can realize timely, accurate and batch collection of greenhouse gas released from a non-aeration treatment process of sewage, and can find wide application in collection of greenhouse gas released from a non-aeration treatment process unit of sewage.
Description
(1) technical field
The present invention relates to a kind of wastewater treatment not the greenhouse gases harvester and method of sampling of aeration unit release of being used for.Belong to the gas sampling technical field.
(2) background technology
Research shows that the greenhouse gas emissions increase is the main cause that causes climate warming.Stipulated CO in the Kyoto Protocol
2, CH
4, N
2O, HFCs, PFCs, SF
6Deng six kinds of greenhouse gases, wherein with CO
2, CH
4, N
2Three kinds of gases of O are main.
Sewage treatment plant is one of main emission source of greenhouse gases, the main CO that produces in the sewage disposal process
2, CH
4And N
2Three kinds of greenhouse gases of O, and the generation of these three kinds of greenhouse gases is widely different with the generation link in the different disposal technology.Along with improving constantly of China's total amount of sewage discharge, handling rate and emission standard, the greenhouse gases amount that produces in the sewage disposal process will increase thereupon, certainly will cause in China's greenhouse gases total release the portion can be increasing.Since two thousand, the external greenhouse gases situation that has produced to different sewage processing unit, different biological treatment process and technology conducts a research.Though also there are being some progress in China aspect the greenhouse gases monitoring; But mainly concentrate in the metastable environmental systems such as farmland, wetland, forest, bare soil and short vegetation; Like application number is 97111901.5; Name is called a kind of method of measuring discharging quantity of gas from farmland greenhouse; Publication number is that the patent of invention of CN1203364 utilizes closed enclosure to cover field-crop, measures the field-crop accumulation discharge capacity of greenhouse gases in a long time, utilizes this method can carry out monitoring steady in a long-term to the greenhouse gases that field-crop discharges.And sewage treatment plant not the aeration processing unit belong to a kind of water body environment, this device can't be implemented in the fixing of aeration processing unit not and the greenhouse gases sample is gathered accurately and effectively.Application number is 200710026451.2 for another example; Name is called a kind of water body, soil surface escaping gas sampling apparatus and the method for sampling thereof; Publication number is the patent of invention of CN101008592; Disclose a kind of water body, soil surface escaping gas sampling apparatus and the method for sampling thereof, can gather and stablize the escaping gas that discharges in natural or the environment such as artificial water, bare soil, short vegetation and beach wetland.But this gas collecting device assembly is more, it is numerous and diverse to connect, and carries inconvenience, is unfavorable for the not extensive sampling of aeration processing unit implementation in sewage treatment plant.The wastewater treatment unit is divided into aeration unit and aeration unit not, and aeration unit does not mainly contain and selects pond, preliminary sedimentation tank, second pond, concentration basin and aeration tank not, and proportion is very big in whole water factory processing unit.At present, China also is not exclusively used in wastewater treatment not the standard acquisition device and the method for sampling of the greenhouse gases of aeration unit release, causes China to lack sewage treatment plant's greenhouse gas emission data and emission reduction strategy.Therefore, research can accurately gather wastewater treatment the aeration unit device and the method for sampling that discharge greenhouse gases do not have very important significance.
(3) summary of the invention
1, purpose:
To current The Research of Relevant Technology present situation and sewage aeration processing procedure greenhouse gases release feature not, the present invention provides that a kind of impermeability is good, simple in structure, easy operating in order to gather the not greenhouse gases device that produces of aeration processing procedure of sewage.The gaseous sample of this greenhouse gases harvester collection has more representativeness, and it can be realized not timely, accurate, the collection in batches of aeration and biological processing procedure greenhouse gases of sewage.
2, technical scheme:
(1) greenhouse gases harvester
A kind of not greenhouse gases harvester of aeration unit release of wastewater treatment that is used for of the present invention, it is to be become by buoyancy aid, gas collecting box, temperature monitoring assembly, pressure monitoring component and gas sampling component groups.
Described buoyancy aid is mainly the gas collecting box and buoyancy is provided and keeps the balance of gas collecting box on liquid level, guarantees that the bottom of gas collecting box is immersed in the underwater all the time in the sample collecting process.Buoyancy aid of the present invention is chosen the inner tube of a tyre of automobile usually, and it is easy to get, buoyancy is big, be easy to carry and change, and also can select cystosepiment etc.
Described gas collecting box is by the buoyancy aid postive stop baffle, fixedly suspension member, temp probe interface, gas production interface, stirring apparatus are formed.Wherein the buoyancy aid postive stop baffle is arranged on gas collection bucket bottom, with the thickness decision by the buoyancy aid of selecting of the distance of gas collection bucket lower edge; 4 fixedly suspension member be evenly distributed on gas collecting box top, it mainly is the fixed gas collecting box and realizes moving of gas collecting box; In order to realize the sealing of interface; Be provided with No. 8 big rubber plugs such as plug at gas collecting box top and fixedly go out mouth; In order to fixing rubber plug; Two punchings are arranged on the rubber plug, and the lead that connects temp probe passes the plug hole with the lead that is connected stirrer and links to each other with the stirring apparatus power supply respectively with digital display thermometer; The gas sampling mouth links to each other with the gas collecting assembly and realizes gas collecting; Gas stirring device is power-actuated stirrer, and its effect is that the gas of collecting in the gas collection bucket is mixed, and the gas that collects has more representativeness.
Described temperature monitoring assembly mainly is made up of temp probe and digital display thermometer, and temp probe links to each other through the temp probe lead with digital display thermometer, to realize that gas temperature is monitored in real time in the case.
Described pressure monitoring component mainly is made up of pressure probe and high-accuracy digital altimeter, and pressure probe links to each other through the pressure probe lead with high-accuracy digital altimeter, monitors in real time to realize loading pressure.
Described gas sampling assembly comprises T-valve, small-sized gas samping pump, gas sampling bag, and it links to each other with the gas sampling mouth through silicone tube successively.Gas production pump power, gas production bag volume are determined by the site test situation.
Wherein, buoyancy aid can be selected air tube or cystosepiment;
Wherein, the gas collecting box is a stainless steel, and its volume is by not decisions such as aeration processing procedure greenhouse gases output intensity, SF of sewage, and general diameter is 300-600mm, high 400-700mm;
Wherein, fixedly to go out mouth be No. 8 plug mouth sizes to plug;
Wherein, gas collecting mouth diameter is 60mm;
Wherein, small-sized gas samping pump is the suction type vacuum pumping pump, and the extraction flow is 4L/min;
Wherein, the gas sampling bag is the aluminium foil material, and volume is 500ml;
Wherein, gas stirring device is power-actuated fan, can adopt cpu fan.
Wherein, the digital display thermometer precision reaches 0.1 ℃.
Wherein, high-accuracy digital altimeter resolution reaches 1Pa.
(2) adopt the affiliated greenhouse gases harvester of the present invention to be used for the not method of sampling of the greenhouse gases of aeration processing unit release of sewage, it is characterized in that operation steps is following:
The first step, sampling apparatus fixing.To different sewage not the aeration treatment process with processing unit structures characteristics; Choose representative monitoring point, this device is fixed in this monitoring point, device utilizes buoyancy aid to swim on the water surface; Buoyancy aid bottom gas collection barrel section does not have in the entry, guarantees to seal with water body.
In second step, prepare before the sampling.Silicone tube is linked to each other with small-sized gas samping pump,, confirm to extract the gas appearance time according to the flow of small-sized gas samping pump and the volume of silicone tube; The swivel tee valve; Open small-sized gas samping pump, extract the gas identical, to get rid of in the silicone tube original gas the interference of gaseous sample with the silicone tube volume; Close T-valve, prepare the collection of gaseous sample.
The 3rd step, the collection of gaseous sample.Behind the gas that sampling apparatus fixes and the emptying silicone tube is interior, immediately the gas sampling bag is linked to each other the swivel tee valve with silicone tube; Open small-sized gas samping pump, with the gas in the gas collecting box through collecting in the gas sampling bag (zero time sampling) in the small-sized gas samping pump, in 60 minutes; Every separated identical time samples; In the gas production process, according to the reading of digital display thermometer, temperature and pressure in the gas collecting box when writing down sampling synchronously; And to open gas stirring device always, the gas in the gas collecting box is mixed.
The present invention has following advantage and effect:
(1) equipment and method involved in the present invention compared with traditional static chamber method sampling, and major advantage is: reduced the quantity of punching on the gas collecting box, used the good rubber plug of retractility, strengthened sealing; Static chamber method to traditional is improved; In gas collecting box bottom; Through buoyancy aid device is swum on the water surface; Water body inside is goed deep in gas collecting box bottom, utilizes the positive confinement of water body implement device, the present invention be fit to be applied in influence carry out under the many water body environments of parameter each not aeration processing unit greenhouse gases gather on a large scale.
(2) present device and method; Device structure is simple, the buoyancy aid parts are easy to change, the device sealing is strong, easy and simple to handle, highly sensitive; The not batch collection of the greenhouse gases of aeration processing unit release of various sewage treatment process can be widely used in, the diffusion flux of all kinds of greenhouse gases of environmental surfaces unit area can be accurately quantized.
(4) description of drawings
Fig. 1 wastewater treatment of the present invention is the planimetric map of the greenhouse gases harvester of aeration unit release not;
Fig. 2 wastewater treatment of the present invention is the greenhouse gases harvester vertical view of aeration unit release not.
Symbol description is following among the figure:
1, temp probe; 2, fixing suspension member; 3, gas production interface; 4, silicone tube; 5, T-valve; 6, small-sized gas samping pump; 7, gas sampling bag; 8, gas collecting box; 9, buoyancy aid; 10, buoyancy aid fixed dam; 11, stirring apparatus; 12, rubber plug; 13, stirring apparatus power supply; 14, stirring apparatus power lead; 15, pressure probe; 16, high-accuracy digital altimeter; 17, pressure probe lead; 18, temp probe lead; 19, digital display thermometer.
(5) embodiment for example
Below in conjunction with accompanying drawing patent of the present invention is detailed.
As shown in the figure, a kind of not greenhouse gases harvester of aeration unit release of wastewater treatment that is used for of the present invention, it is to be become with the gas sampling component groups by buoyancy aid (9), gas collecting box (8), temperature monitoring assembly, pressure monitoring component.Wherein gas collecting box (8) is by buoyancy aid fixed dam (10), fixedly suspension member (2), temp probe interface, gas production interface (3), stirring apparatus (11) are formed; The temperature monitoring assembly is made up of temp probe (1), digital display thermometer (19), temp probe lead (18); Pressure monitoring component is made up of pressure probe (15), high-accuracy digital altimeter (16), pressure probe lead (17); The gas sampling assembly is made up of silicone tube (4), T-valve (5), small-sized gas samping pump (6) and gas sampling bag (7).
Position annexation between said each parts is: buoyancy aid (9) is fixed on the gas collecting box (8) through the buoyancy aid fixed dam (10) on the gas collecting box (8); The gas production interface (3) of gas collecting box (8) upper end connects T-valve (5), small-sized gas samping pump (6), gas sampling bag (7) successively by silicone tube (4); The lead (18) of the inner connection of gas collecting box (8) temp probe, the lead (17) of connection pressure probe link to each other respectively with digital display thermometer (19), high-accuracy digital altimeter (16) and stirring apparatus power supply (13) with the plug (12) that the power lead that is connected stirrer (14) passes gas collecting box (8) top.
Wherein, buoyancy aid (9) device is selected air tube;
Wherein, gas collecting box (8) is a stainless steel, and its diameter is 400mm, high 550mm;
Wherein, fixedly to go out mouth be No. 8 plug mouths to rubber plug (12);
Wherein, gas production interface (3) diameter is 6mm;
Wherein, small-sized gas samping pump (6) is the suction type vacuum pumping pump, and its model is: ASF THOMAS 712250, and the extraction flow is 4L/min;
Wherein, gas sampling bag (7) is the aluminium foil material, and volume is 500ml, and maximum pressure is 3KPa;
Wherein, gas stirring device (11) is a cpu fan.
Wherein, digital display thermometer (19) precision reaches 0.1 ℃.
Wherein, high-accuracy digital altimeter (16) resolution reaches 1Pa.
Utilize sampling apparatus sampling process of the present invention following:
The first step, sampling apparatus fixing.To different sewage not the aeration treatment process with processing unit structures characteristics; Choose representative monitoring point, this device is fixed in this monitoring point, device utilizes buoyancy aid (9) to swim on the water surface; Buoyancy aid (9) lower gas collecting box (8) part there is not in the entry, guarantees to seal with water body.
In second step, prepare before the sampling.Silicone tube (4) is linked to each other with small-sized gas samping pump (6),, confirm to extract the gas appearance time according to the flow of small-sized gas samping pump (6) and the volume of silicone tube (4); Swivel tee valve (5); Open small-sized gas samping pump (6), extract and the identical gas of silicone tube (4) volume, with original gas in the eliminating silicone tube (4) to the interference of gaseous sample; Close T-valve (5), prepare the collection of gaseous sample.
The 3rd step, the collection of gaseous sample.Behind the gas that sampling apparatus fixes and emptying silicone tube (5) is interior, immediately gas sampling bag (7) is linked to each other swivel tee valve (5) with silicone tube (4); Open small-sized gas samping pump (6), with the gas in the gas collecting box (8) through collecting in the gas sampling bag (7) (zero time sampling) in the small-sized gas samping pump (6), in 60 minutes; Every separated identical time samples; In the gas production process, according to the reading of digital display thermometer (19) and high-accuracy digital altimeter (16), the interior temperature and pressure of gas collecting box (8) when writing down sampling synchronously; And to open gas stirring device (11) always, the gas in the gas collecting box (8) is mixed.To different sewage aeration treatment process not, choose representative monitoring point, through fixing suspension member (2) fixed sample bucket in this monitoring point.
Gather gaseous sample according to SF.The sample target compound is CO in this case study on implementation
2, CH
4, N
2O isothermal chamber gas keeps in Dark Place institute's collected specimens and transports the laboratory back, can be directly with the gas chromatograph-mass spectrometer (GCMS) or the gas chromatograph analysis of being furnished with electron capture detector.
Claims (8)
1. one kind is used for the not greenhouse gases harvester of aeration unit release of wastewater treatment, it is characterized in that: become with the gas sampling component groups by buoyancy aid (9), gas collecting box (8), temperature monitoring assembly, pressure monitoring component.
2. a kind of not greenhouse gases harvester of aeration unit release of wastewater treatment that is used for as claimed in claim 1, it is characterized in that: described buoyancy aid (9) can be selected cystosepiment and doughnut.
3. a kind of not greenhouse gases harvester of discharging of aeration unit of wastewater treatment that is used for as claimed in claim 1 is characterized in that: described gas collecting box (8) is by buoyancy aid fixed dam (10), fixedly suspension member (2), gas production interface (3), stirring apparatus (11) are formed.
4. a kind of not greenhouse gases harvester of aeration unit release of wastewater treatment that is used for as claimed in claim 1; It is characterized in that: described temperature monitoring assembly is made up of temp probe (1) and digital display thermometer (19); Temp probe (1) links to each other through temp probe lead (18) with digital display thermometer (19), to realize that gas temperature is monitored in real time in the case.
5. a kind of sewage as claimed in claim 1 is aeration processing procedure greenhouse gases harvester not; It is characterized in that: described temperature monitoring assembly is made up of pressure probe (15) and high-accuracy digital altimeter (16); Pressure probe (15) links to each other through pressure probe lead (17) with high-accuracy digital altimeter (16), monitors in real time to realize loading pressure.
6. a kind of not greenhouse gases harvester of aeration unit release of wastewater treatment that is used for as claimed in claim 1; It is characterized in that: described gas sampling assembly comprises T-valve (5), small-sized gas samping pump (6), gas sampling bag (7), and it links to each other with gas production interface (3) through silicone tube (4) successively.
7. stirring apparatus as claimed in claim 3 (11) is characterized in that: can select cpu fan.
8. one kind is adopted the described greenhouse gases harvester of claim 1 to gather the not method of the greenhouse gases of aeration unit release of wastewater treatment, it is characterized in that operation steps is following:
The first step, sampling apparatus fixing.To different sewage not the aeration treatment process with processing unit structures characteristics; Choose representative monitoring point, this device is fixed in this monitoring point, device utilizes buoyancy aid (9) to swim on the water surface; Buoyancy aid (9) lower gas collecting box (8) part there is not in the entry, guarantees to seal with water body.
In second step, prepare before the sampling.Silicone tube (4) is linked to each other with small-sized gas samping pump (6),, confirm to extract the gas appearance time according to the flow of small-sized gas samping pump (6) and the volume of silicone tube (4); Swivel tee valve (5); Open small-sized gas samping pump (6), extract and the identical gas of silicone tube (4) volume, with original gas in the eliminating silicone tube (4) to the interference of gaseous sample; Close T-valve (5), prepare the collection of gaseous sample.
The 3rd step, the collection of gaseous sample.Behind the gas that sampling apparatus fixes and emptying silicone tube (5) is interior, immediately gas sampling bag (7) is linked to each other swivel tee valve (5) with silicone tube (4); Open small-sized gas samping pump (6), with the gas in the gas collecting box (8) through collecting in the gas sampling bag (7) (zero time sampling) in the small-sized gas samping pump (6), in 60 minutes; Every separated identical time samples; In the gas production process, according to the reading of digital display thermometer (19) and high-accuracy digital altimeter (16), the interior temperature and pressure of gas collecting box (8) when writing down sampling synchronously; And to open gas stirring device (11) always, the gas in the gas collecting box (8) is mixed.
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|---|---|---|---|
| CN2011103031258A CN102507273A (en) | 2011-10-10 | 2011-10-10 | Device and method for sampling greenhouse gas released from non-aeration unit of sewage treatment |
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| CN2011103031258A CN102507273A (en) | 2011-10-10 | 2011-10-10 | Device and method for sampling greenhouse gas released from non-aeration unit of sewage treatment |
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| CN103616480A (en) * | 2013-11-29 | 2014-03-05 | 浙江海洋学院 | Carbon sink fishery monitoring device |
| CN103814840A (en) * | 2013-11-29 | 2014-05-28 | 浙江海洋学院 | Net cage with carbon sink monitoring function |
| CN104236954A (en) * | 2014-09-19 | 2014-12-24 | 北京工业大学 | Collection device for treating N2O on water level of treatment unit in sewage treatment plant and sampling method |
| CN104807678A (en) * | 2014-02-28 | 2015-07-29 | 中国农业科学院农业环境与可持续发展研究所 | Livestock and poultry waste management gas discharge determination device |
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| CN103814840A (en) * | 2013-11-29 | 2014-05-28 | 浙江海洋学院 | Net cage with carbon sink monitoring function |
| CN103616480A (en) * | 2013-11-29 | 2014-03-05 | 浙江海洋学院 | Carbon sink fishery monitoring device |
| CN104807678A (en) * | 2014-02-28 | 2015-07-29 | 中国农业科学院农业环境与可持续发展研究所 | Livestock and poultry waste management gas discharge determination device |
| CN104236954A (en) * | 2014-09-19 | 2014-12-24 | 北京工业大学 | Collection device for treating N2O on water level of treatment unit in sewage treatment plant and sampling method |
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| CN106370787A (en) * | 2016-09-30 | 2017-02-01 | 南通大学 | Liquid level volatile gas detection device for water body with frequently-changed water level |
| CN106370786A (en) * | 2016-09-30 | 2017-02-01 | 环境保护部南京环境科学研究所 | All-weather liquid level volatile gas continuous automatic detector |
| CN106323698A (en) * | 2016-11-10 | 2017-01-11 | 四川农业大学 | Connected type convenient static floating device |
| CN106769270A (en) * | 2017-02-16 | 2017-05-31 | 北京城市排水集团有限责任公司 | A kind of static water surface Pollution Gas sampling apparatus and its method for sampling |
| CN106769270B (en) * | 2017-02-16 | 2024-03-29 | 北京城市排水集团有限责任公司 | Static water surface atmosphere polluted gas sampling device and sampling method thereof |
| CN107340158A (en) * | 2017-08-25 | 2017-11-10 | 广东贝源检测技术股份有限公司 | Black-odor river sewage sampling method and its device |
| CN114314868A (en) * | 2022-01-06 | 2022-04-12 | 北京工业大学 | Real-time collecting device and method for VSCs gas released from aeration dynamic water surface |
| CN114646730A (en) * | 2022-03-11 | 2022-06-21 | 光大环境科技（中国）有限公司 | Method for measuring gas emission flux of non-structured surface source |
| CN114705237A (en) * | 2022-03-16 | 2022-07-05 | 哈尔滨工业大学（深圳） | Greenhouse gas emission measuring and calculating method for underground sewage treatment system |
| CN114705237B (en) * | 2022-03-16 | 2023-03-31 | 哈尔滨工业大学（深圳） | Greenhouse gas emission measuring and calculating method for underground sewage treatment system |
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Application publication date: 20120620 |