CN108580546A - A kind of prosthetic device and method of half in-situ treatment volatile organic matter contaminated site - Google Patents
A kind of prosthetic device and method of half in-situ treatment volatile organic matter contaminated site Download PDFInfo
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- CN108580546A CN108580546A CN201810651557.XA CN201810651557A CN108580546A CN 108580546 A CN108580546 A CN 108580546A CN 201810651557 A CN201810651557 A CN 201810651557A CN 108580546 A CN108580546 A CN 108580546A
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- contaminated site
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- soil gas
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- volatile organic
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 23
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- 239000000523 sample Substances 0.000 claims abstract description 13
- 239000002775 capsule Substances 0.000 claims abstract description 7
- 239000002689 soil Substances 0.000 claims description 44
- 238000012544 monitoring process Methods 0.000 claims description 12
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- 238000011084 recovery Methods 0.000 description 4
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
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- 239000004215 Carbon black (E152) Substances 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
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- 238000010411 cooking Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
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- 239000002283 diesel fuel Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
- B09C1/105—Reclamation of contaminated soil microbiologically, biologically or by using enzymes using fungi or plants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Abstract
The present invention discloses a kind of prosthetic device and method of half in-situ treatment volatile organic matter contaminated site, including slot pipe, the slot pipe is embedded in contaminated site, slot pipe one end is connected with the whirlpool air pump positioned at earth's surface by pipeline, and capsule pressure gauge, vortex-shedding meter are disposed on the pipeline between the whirlpool air pump and the slot pipe；SOIL GAS probe is provided in the contaminated site.The prosthetic device of half in-situ treatment volatile organic matter contaminated site disclosed by the invention is simple in structure, and quantities is small when use, strong applicability, and repairing effect is good.
Description
Technical field
The present invention relates to TREATMENT OF VOCs technical fields, organic more particularly to a kind of half in-situ treatment volatility
The prosthetic device and method of object contaminated site.
Background technology
Since the point of concern is different, to volatile organic matter, i.e. the definition of VOCs also emphasizes particularly on different fields, U.S. ASTM
D3960-98 is defined as any organic compound that can participate in atmospheric photochemical reaction；Fusing point is less than by the World Health Organization
Room temperature and volatile organic matter of the boiling point between 50 DEG C -260 DEG C is defined as total volatile organism (TVOC)；BASF AG
It also holds that VOCs should be defined according to boiling point.Most common viewpoint thinks that VOCs refers to that those boiling points are less than or equal to 250 DEG C
Organic matter.
Essentially from fuel combustion and communications and transportation outside the rooms VOCs；Interior is essentially from the burnings such as coal-fired and natural gas production
Object, smoking, heating and the cooking etc. obtain smog, the row of building and ornament materials, furniture, household electrical appliance, detergent and human body itself
It puts.
VOCs includes mainly hydro carbons, halogenated hydrocarbons, oxygen hydrocarbon and nitrogen hydrocarbon, it includes benzene homologues, organic chloride, freon system
Row, organic ketone, amine, alcohol, ether, ester, acid and oil hydrocarbon compound etc., this substance have strong volatility and strong lipophilicity, have
Migration, persistence and toxicity can be entered human body by respiratory tract, alimentary canal and skin and generate harm, and toxicity mainly shows
There is the carcinogenic mutagenesis of teratogenesis to human body, agent discharge capacity is big, when VOCs enters human body and runs up to a certain concentration, people
May feel that headache, Nausea and vomiting, weak etc., twitch, stupor will appear when serious, and can hurt the liver of people, kidney,
Brain and nervous system causes the consequences such as failure of memory.
For this purpose, large quantities of scholars have carried out the research to VOCs, the method for administering VOCs pollutions of science is found, it is right to reduce its
The harm of human body and environment.On the one hand, source control is to solve the direct measure of VOCs pollutions, and country is to there may be VOCs dirts
The industry of dye has all done corresponding limit value；But or the inevitable generation for having VOCs, this just needs the dirt to generation
Dye is administered.
Mainly have to the biodegrading process of VOCs at present：Active carbon adsorption, burning facture, is inhaled at air inducing high altitude discharge method
Receive scavenging (being dissolved in diesel oil, gasoline), condensation collecting method, biological treatment etc..Various methods have respective advantage and disadvantage, can
Targetedly to select to use.
In being repaired for VOCs contaminated sites, site remediation technology more common at present is normal temperature desorption technique and SOIL GAS
Phase extraction technique (SVE).Normal temperature desorption technique is exactly that contaminated soil excavation is transported in closed greenhouse to carry out forced disturbance,
Qualified discharge after the VOCs activated carbon adsorptions or burning that are volatilized in contaminated soil, this comes the very deep place of pollution depth
It says, quantities is huge, and it is unpractical that the contaminated soil of tens meters of depths, which is all dug out processing, and pollutes general main concentration
In upper layer of soil, after the processing of upper layer pollution sources, lower soil is repaired with supplementary means can reach reparation requirement.
SVE technologies are more demanding to the soil texture and porosity of contaminated site soil, sand and the larger soil of silt isoporosity
Applicability is preferable, but clayey contaminated site applicability is poor.
Invention content
The object of the present invention is to provide a kind of prosthetic device and method of half in-situ treatment volatile organic matter contaminated site,
To solve the above-mentioned problems of the prior art, quantities is small, strong applicability, and repairing effect is good.
To achieve the above object, the present invention provides following schemes：
The present invention provides a kind of prosthetic device of half in-situ treatment volatile organic matter contaminated site, including slot pipe, institute
It states slot pipe to be embedded in contaminated site, slot pipe one end is connected with the whirlpool air pump positioned at earth's surface by pipeline, described
It is disposed with capsule pressure gauge, vortex-shedding meter on pipeline between whirlpool air pump and the slot pipe；The contaminated site
Inside it is provided with SOIL GAS probe.
Optionally, four row's slot pipes are embedded in the contaminated site at equal intervals, slot pipe is set up in parallel described in four rows,
And it is connect respectively with the whirlpool air pump by a main pipeline.
Optionally, SOIL GAS monitoring well is offered in the contaminated site, the SOIL GAS probe is set to the soil
In gas monitoring well.
Optionally, nine SOIL GAS detecting shafts are offered in the contaminated site, nine SOIL GAS detecting shafts are uniform
Be opened between the slot pipe.
Optionally, the soil is buried when depth is 1.5m, 2.5m, 3.5m and 5m respectively in the SOIL GAS detecting shaft
Gas is popped one's head in.
Optionally, HDPE geomembranes are equipped on the side wall of the contaminated site.
Optionally, it is provided with ball valve on the pipeline between the whirlpool air pump and the slot pipe.
The present invention also provides a kind of restorative procedures of half in-situ treatment volatile organic matter contaminated site, include mainly as follows
Step：
(1) foundation pit excavates；Foundation pit is deep-cut in contaminated site, and the Polluted Soil dug out is transported to specified settlement and is carried out
Covering barrier；
(2) four wall of foundation pit obstructs；After being modified to four wall of foundation pit and bottom, four wall of foundation pit is laid with geotextiles and HDPE soil
Work film is obstructed into row bound；
(3) quartz sand filling is laid with aerated conduit；Bottom of foundation ditch fills quartz sand filter media, and by four row's laser slotted pipes
To be equidistantly embedded in quartz sand；
(4) cleaning soil covering；Outward transport cleaning soil carries out foundation pit covering, cleans at soil covering to foundation pit than periphery ground level
Height continues to be supplemented to stable state after soil sedimentation to be cleaned；
(5) ground aerating system is installed；Earth's surface operation is carried out to four discharge pipes that bottom of foundation ditch is drawn, connects bellows pressure
Table, vortex-shedding meter, whirlpool air pump；
(6) SOIL GAS drills shaft building；After foundation pit filling is cleaned soil and stablized, start to build to carrying out SOIL GAS probing at foundation pit
Well works, and opens up nine SOIL GAS monitoring wells altogether, and each SOIL GAS monitoring well is respectively 1.5m, 2.5m, 3.5m and 5m in depth
When embedded SOIL GAS probe；
(7) SOIL GAS samples；To O in the SOIL GAS of different points and different depth2、CO2、CH4、H2S is monitored and takes
Sample is analyzed；
(8) scene aeration；After acquiring SOIL GAS at the 4th time, scene starts intermittent aerating work, and total aeration quantity is every time
20m3, while persistently carrying out SOIL GAS sampling.
The present invention achieves following technique effect compared with the existing technology：
The prosthetic device of half in-situ treatment volatile organic matter contaminated site provided by the invention is by the pollution of 0-4m depth
The processing of soil excavation is laid with slot pipeline in the depths 4m and is connected to ground, builds aerating system, while substituting and scooping away with cleaning soil
Pollution of surface soil, supplied air to by way of micro- aeration in the soil near 4m, increase soil in aerobic microbiological
Respiration, volatilized the VOCs to come up with the lower layer Polluted Soil of degrading.Through natural degradation after a period of time, lower layer's contaminated soil
Middle VOCs can decay to reduced levels, and not supreme ease is detrimental to health to air.While satisfaction reparation requires, very greatly
The recovery project amount for reducing VOCs Polluted Soils of degree, entire method implementation is more convenient, economical, as a kind of VOCs Pollution Fields
The replicability of the important model of ground reparation is extremely strong, for the deeper soil of VOCs pollutions.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is that the prosthetic device of half in-situ treatment volatile organic matter contaminated site of the invention arranges schematic top plan view；
Fig. 2 is the prosthetic device partial sectional view of half in-situ treatment volatile organic matter contaminated site of the invention；
Fig. 3 is that the SOIL GAS of the prosthetic device of half in-situ treatment volatile organic matter contaminated site of the invention monitors well construction
Schematic diagram；
Fig. 4 is the reparation flow diagram of half in-situ treatment volatile organic matter contaminated site of the invention；
Wherein, 1 it is slot pipe, 2 be main pipeline, 3 be whirlpool air pump, 4 be capsule pressure gauge, 5 be vortex-shedding meter, 6 is
SOIL GAS probe, 7 be SOIL GAS monitoring well, 8 be ball valve.
Specific implementation mode
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 describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of prosthetic device and method of half in-situ treatment volatile organic matter contaminated site,
To solve the above-mentioned problems of the prior art, quantities is small, strong applicability, and repairing effect is good.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Soil microbial community is the important component of soil ecosystem, it includes bacterium, fungi, virus, primary
Animal, algae etc., they are aoxidized, are nitrified in the soil, ammonification, fixed nitrogen, vulcanization the effects that.Microorganism growth needs six are big
Element, is water, carbon source, nitrogen source, inorganic salts, growth factor and the energy respectively, and volatile organic matter can be used as carbon source by soil
Microorganism utilizes, and aerobic microbiological completes the degradation to volatile organic matter by respiration, but due to containing in deep soil
Oxygen amount is relatively low or does not have oxygen, predominantly anaerobe in action so that the degradation of volatile organic matter is not thorough, and is passed through
It is aerated to deep soil, the respiration of aerobic microbiological in soil can be enhanced, volatile organic matter is fully converted to CO2
And H2O is a kind of means of bioremediation in fact.
Meanwhile when being aerated into deep soil, the dilution to SOIL GAS near excessive layer can be formed, is reduced in SOIL GAS
The concentration of volatile organic matter so that the respiration of microorganism can be carried out preferably.
The present invention is based on above-mentioned principles, provide a kind of prosthetic device of half in-situ treatment volatile organic matter contaminated site,
As shown in Figs. 1-3, including slot pipe 1, it is embedded with four row's slot pipes 1 at equal intervals in contaminated site, four row's slot pipes 1 are set side by side
It sets, and is connect respectively with whirlpool air pump 3 by a main pipeline 2, on the main pipeline 2 between whirlpool air pump 3 and slot pipe 1 successively
It is provided with capsule pressure gauge 4, vortex-shedding meter 5；Capsule pressure gauge 4, vortex-shedding meter 5 and whirlpool air pump 3 may be contained within board house
It is interior.SOIL GAS probe 6 is provided in contaminated site.
It is further preferred that offering SOIL GAS monitoring well 7 in contaminated site, SOIL GAS probe 6 is set to SOIL GAS prison
In well logging 7.Nine SOIL GAS detecting shafts 7 are offered in contaminated site, nine SOIL GAS detecting shafts 7 are uniformly opened in adjacent two
Between a slot pipe 1.Bury SOIL GAS probe 6 in SOIL GAS detecting shaft 7 when depth is 1.5m, 2.5m, 3.5m and 5m respectively.
HDPE geomembranes are equipped on the side wall of contaminated site.Ball valve 8 is provided on pipeline between whirlpool air pump 3 and slot pipe 1.
The restorative procedure detailed process of half in-situ treatment volatile organic matter contaminated site of the present invention is as shown in figure 4, first
Carry out three supplies and one leveling trial zones surveying setting-out, in conjunction with reconnaissance trip and site condition implement needed for hydroelectric facility and interface；It determines
Test zone position and boundary；The smooth and cleaning on place surface.Excavation pit, and to foundation pit amendment, it is carried out at the same time slope protection
It is laid with pipeline, after being modified to four wall of foundation pit and bottom, four wall of foundation pit is laid with geotextiles and HDPE geomembranes into row bound
Barrier；Bottom of foundation ditch fills quartz sand filter media, and by four row's laser slotted pipes, i.e., above-mentioned slot pipe 1 is to be equidistantly embedded in stone
In sand；Outward transport cleaning soil carries out foundation pit covering, cleans soil covering to higher than periphery ground level at foundation pit, after soil sedimentation to be cleaned
Continue to be supplemented to stable state；Earth's surface operation is carried out to four discharge pipes that bottom of foundation ditch is drawn, connects bellows pressure, 4, whirlpool
Street flowmeter 5, whirlpool air pump 3 are used as aerating system, to aerating system commissioning test.After foundation pit filling is cleaned soil and stablized, open
Begin, to carrying out SOIL GAS probing shaft building work at foundation pit, to open up nine SOIL GAS monitoring wells 7 altogether, each SOIL GAS monitoring well 7 is divided
The not embedded SOIL GAS probe 6 when depth is 1.5m, 2.5m, 3.5m and 5m；To in the SOIL GAS of different points and different depth
O2、CO2、CH4、H2S is monitored and sampling analysis；After acquiring SOIL GAS at the 4th time, scene starts intermittent aerating work, often
Secondary total aeration quantity is 20m3, while persistently carrying out SOIL GAS sampling.
The present invention can significantly reduce recovery project amount, save rehabilitation cost, and can be by the VOCs of deep layer
Barrier gradual Natural Attenuation below aeration layer well, reaches good regulation effect；Meanwhile the place of the recovery technique
Adaptability is stronger, can be applied well to the contaminated site of different soils quality；Micro- aeration and biological Barrier Technology technology road
Line is clear, and a whole set of technical equipment expense is relatively low, is a kind of VOCs contaminated site recovery techniques of economy, following replicability
It is extremely strong.
Specific case is applied in the present invention, and principle and implementation of the present invention are described, above example
Illustrate the method and its core concept for being merely used to help understand the present invention；Meanwhile for those of ordinary skill in the art, according to
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (8)
1. a kind of prosthetic device of half in-situ treatment volatile organic matter contaminated site, it is characterised in that：It is described including slot pipe
Slot pipe is embedded in contaminated site, and slot pipe one end is connected with the whirlpool air pump positioned at earth's surface, the whirlpool by pipeline
It is disposed with capsule pressure gauge, vortex-shedding meter on pipeline between whirlpool air pump and the slot pipe；In the contaminated site
It is provided with SOIL GAS probe.
2. the prosthetic device of half in-situ treatment volatile organic matter contaminated site according to claim 1, it is characterised in that：
Four row's slot pipes are embedded in the contaminated site at equal intervals, slot pipe is set up in parallel described in four rows, and is responsible for by one
Road is connect with the whirlpool air pump respectively.
3. the prosthetic device of half in-situ treatment volatile organic matter contaminated site according to claim 2, it is characterised in that：
SOIL GAS monitoring well is offered in the contaminated site, the SOIL GAS probe is set in the SOIL GAS monitoring well.
4. the prosthetic device of half in-situ treatment volatile organic matter contaminated site according to claim 3, it is characterised in that：
Nine SOIL GAS detecting shafts are offered in the contaminated site, nine SOIL GAS detecting shafts are uniformly opened in the slot
Between pipe.
5. the prosthetic device of half in-situ treatment volatile organic matter contaminated site according to claim 4, it is characterised in that：
Bury the SOIL GAS probe in the SOIL GAS detecting shaft when depth is 1.5m, 2.5m, 3.5m and 5m respectively.
6. the prosthetic device of half in-situ treatment volatile organic matter contaminated site according to claim 1, it is characterised in that：
HDPE geomembranes are equipped on the side wall of the contaminated site.
7. the prosthetic device of half in-situ treatment volatile organic matter contaminated site according to claim 1, it is characterised in that：
It is provided with ball valve on pipeline between the whirlpool air pump and the slot pipe.
8. a kind of restorative procedure of half in-situ treatment volatile organic matter contaminated site, it is characterised in that：Include the following steps：
(1) foundation pit excavates；Foundation pit is deep-cut in contaminated site, and the Polluted Soil dug out is transported to specified settlement and is covered
Barrier；
(2) four wall of foundation pit obstructs；After being modified to four wall of foundation pit and bottom, four wall of foundation pit is laid with geotextiles and HDPE geomembranes
It is obstructed into row bound；
(3) quartz sand filling is laid with aerated conduit；Bottom of foundation ditch fill quartz sand filter media, and by four row's laser slotted pipes with etc.
Spacing is embedded in quartz sand；
(4) cleaning soil covering；Outward transport cleaning soil carries out foundation pit covering, cleans soil covering to higher than periphery ground level at foundation pit, waits for
Continue to be supplemented to stable state after cleaning soil sedimentation；
(5) ground aerating system is installed；Four discharge pipes progress earth's surface operation to bottom of foundation ditch extraction, connection capsule pressure gauge,
Vortex-shedding meter, whirlpool air pump；
(6) SOIL GAS drills shaft building；After foundation pit filling is cleaned soil and stablized, start to drill shaft building work to carrying out SOIL GAS at foundation pit
Make, open up nine SOIL GAS monitoring wells altogether, each SOIL GAS monitoring well is buried when depth is 1.5m, 2.5m, 3.5m and 5m respectively
If SOIL GAS is popped one's head in；
(7) SOIL GAS samples；To O in the SOIL GAS of different points and different depth2、CO2、CH4、H2S is monitored and samples point
Analysis；
(8) scene aeration；After acquiring SOIL GAS at the 4th time, scene starts intermittent aerating work, and total aeration quantity is 20m every time3,
SOIL GAS sampling is persistently carried out simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810651557.XA CN108580546A (en) | 2018-06-22 | 2018-06-22 | A kind of prosthetic device and method of half in-situ treatment volatile organic matter contaminated site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810651557.XA CN108580546A (en) | 2018-06-22 | 2018-06-22 | A kind of prosthetic device and method of half in-situ treatment volatile organic matter contaminated site |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108580546A true CN108580546A (en) | 2018-09-28 |
Family
ID=63633943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810651557.XA Pending CN108580546A (en) | 2018-06-22 | 2018-06-22 | A kind of prosthetic device and method of half in-situ treatment volatile organic matter contaminated site |
Country Status (1)
| Country | Link |
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| CN109365522A (en) * | 2018-12-10 | 2019-02-22 | 北京博诚立新环境科技股份有限公司 | A method of the reparation of contaminated soil anaerobic organism is carried out using bioreactor |
| CN110057396A (en) * | 2019-02-20 | 2019-07-26 | 中国石油天然气集团有限公司 | A kind of soil and groundwater volatile organic matter continuous monitor system and method for early warning |
| CN111266402A (en) * | 2020-02-20 | 2020-06-12 | 北京市环境保护科学研究院 | Biological barrier system and method for blocking path of benzene series in field to move to atmosphere |
| CN112684111A (en) * | 2020-12-16 | 2021-04-20 | 合肥工业大学 | Aeration strengthening test device and method for surfactant in polluted soil |
| CN114160559A (en) * | 2021-11-16 | 2022-03-11 | 辽宁中博生态环境技术有限公司 | Organic contaminated soil management and control disposal system and application thereof |
| CN114226423A (en) * | 2021-11-29 | 2022-03-25 | 辽宁中博生态环境技术有限公司 | Risk control method for volatile organic pollution site |
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