CN1851457A - Urban house refuse geologic landfill analogue experiment method and device - Google Patents
Urban house refuse geologic landfill analogue experiment method and device Download PDFInfo
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- CN1851457A CN1851457A CN 200610040497 CN200610040497A CN1851457A CN 1851457 A CN1851457 A CN 1851457A CN 200610040497 CN200610040497 CN 200610040497 CN 200610040497 A CN200610040497 A CN 200610040497A CN 1851457 A CN1851457 A CN 1851457A
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Abstract
The invention relates to a city life garbage geology landfill analog experiment method and the device. It adopts the material of pressed clay layer, bedding layer, domestic garbage layer, gas storing layer or separating gas storing layer, clay covering layer to form garbage analog filling method. With the column combined by flange, and the plug jack device to take sampling or insert appearance that could research generating , storing, and transferring for the garbage biology gas and the controlling and optimizing, and the percolate infiltrating rule. Thus, the organic biodegradation, garbage biological gas generating, storing, and moving, the percolate infiltrating rule, and the earth work feather alteration would be experimented.
Description
Technical field
The present invention relates to urban house refuse geologic landfill analogue experiment method and device, be particularly useful for simcity house refuse rubbish biological gas when actual landfill generation, preserve and migrate the synthetic study of laying (gravel drainage blanket and compacting clay seam) permeance property variation characteristic, percolation law.
Background technology
In the urban house refuse geologic landfill process and since rubbish organic matter degradation, anger, landfill gas preserve migration and percolate to the mechanism of liner system complicacy comparatively, need carry out system and independent garbage loading embeading experiment.At present, a lot of refuse geologic landfill analogue experiment devices are directed to a certain concrete research contents design and implement, as be directed to the permeance property of migration rule, (compound) liner of rubbish organic matter degradation, percolate and the separate analogue experiment of aspects such as Study on adsorption properties and angry rule, the experimental provision small scale, common simulation structure of container is fairly simple, volume is little, and it is few to survey data, and deviation is big; It two does not have special sampling setting, sampling difficulty in the experimentation; It three does not relate to the rubbish organic matter degradation, the anger of landfill gas, preserve, migration and output, and the Biochemical processes of rubbish body and percolate seepage flow are studied with the interaction integrated simulation experiment soil body geotechnique Effect on Performance.Therefore the system experimentation research to refuse geologic landfill remains further deeply.
Summary of the invention
Technical matters: the purpose of this invention is to provide that a kind of method is easy, easy to operate, sampled data is many, deviation is little, the urban house refuse geologic landfill analogue experiment method of compact conformation and device.
Technical scheme: urban house refuse geologic landfill analogue experiment method of the present invention, its step is as follows:
Step 1: at first set rubbish simulation landfill body structure, laying, house refuse layer, gas bearing reservoir that is made of compacting clay seam and draining sandy gravel stratum by landfill body structure layering from bottom to up filling in the garbage loading embeading cylinder or the material of separating gas bearing reservoir, clay capping layer form rubbish simulation landfill body;
Step 2: pore water pressure piezometric tube device is installed respectively in the jack devices on the garbage loading embeading cylinder, the gaseous tension determinator, pore water pressure sensor, oxidation-reduction potential instrument and thermometer, test instrumentations such as liner soil moisture in layer analyzer and equipment for measuring gas flow rate, pore water pressure piezometric tube device wherein, the installation site of gaseous tension determinator and pore water pressure sensor is corresponding to liner draining sandy gravel stratum, the installation site of oxidation-reduction potential instrument and thermometer is corresponding to the house refuse layer, gaseous tension determinator and equipment for measuring gas flow rate installation site are corresponding to gas bearing reservoir or separate gas bearing reservoir, and liner soil moisture in layer analyzer installation site is corresponding to the compacting clay seam;
Step 3: the data of simulation landfill body mesoporosity water pressure, gaseous tension and flow, oxidation-reduction potential, potential of hydrogen, temperature, compacting liner soil moisture in layer are gathered in test, determine the sample time of laying, waste layer, rubbish biological gas, percolate, the sample that collects is tested and analyzed.
Urban house refuse geologic landfill analogue experiment device of the present invention, it comprises and being connected by flange, the garbage loading embeading cylinder that has base and top cover, the housing of garbage loading embeading cylinder is provided with observes the perspective window, and be provided with a plurality of jack devices of inserting different probes, by the jack devices on the garbage loading embeading cylinder, be provided with a plurality of pore water pressure piezometric tube devices and gas pressure measuring unit, and be plugged with the percolate circulation system, equipment for measuring gas flow rate, a plurality of liner soil moisture in layer analyzers, pore water pressure sensor, the oxidation-reduction potential instrument, thermometer, the percolate circulation system link to each other with jack devices on the top cover respectively with on the garbage loading embeading cylinder.
Urban house refuse geologic landfill analogue experiment device of the present invention, described jack devices are matched by external fiber tube joint, the rubber cushion that is located at external fiber tube joint end face and external fiber tube joint and merge the internal thread cap have through hole and form; The described percolate circulation system by pump, insert connecting pipe joint and ball valve in the jack devices, the percolate container that is connected with threeway with flexible pipe forms; Described pore water pressure piezometric tube device by be located at punching plug in the jack devices, insert hollow copper tubing in it, pressure measurement glass tube, flexible pipe that hollow copper tubing and pressure measurement glass tube are connected as a single entity form, and is provided with permeable air-locked potter's clay plate in the flexible pipe; Two ball valves of the different directions that described gaseous tension determinator connects by the pipe adapter that is fixed on jack on the garbage loading embeading cylinder, connected by the loose joint joint, by threeway, be provided with gas gauge by the punching plug on the ball valve, the end of pipe adapter is provided with the microporous membrane of permeable watertight; The described a plurality of liner soil moisture in layer analyzer series arrangement that are located at garbage loading embeading cylinder bottom, the inserted link of each liner soil moisture in layer analyzer are inserted in the jack devices that is provided with the punching plug and is obliquely installed; Described can be single cylinder by flange garbage loading embeading cylinder that connect, that have base and top cover, also can be connected by a plurality of cylinders to form.
Beneficial effect: urban house refuse geologic landfill analogue experiment method of the present invention and device, the combination cylinder that adopts flange to connect, has the perspective of observation window, and be provided with different-diameter and the jack devices of finishing different purposes, the concrete content measurement required according to experiment, select the jack devices of diverse location can carry out different samplings or plug-in mounting instrument, a jack devices can realize multiple function, can realize the organic biodegradation of rubbish, the generation of rubbish biological gas, preserve and migrate, drainage blanket permeance property Changing Pattern, the seepage characteristic of percolate in laying, the experimental study of compacting clay aspects such as variation characteristics of geotechnological proterties under the percolate long term.Can carry out at a certain research project, also can will coordinate between the research project, the formation system, the experimental data interdependence of each conceptual phase, utilization are mutually systematically carried out modeling effort to garbage loading embeading.Can study the organic biodegradation of rubbish, the anger of landfill gas, preserve and migrate, percolate is in the migration of laying, the percolate biology chemical process is to the influence of liner soil layer geotechnique proterties, be at the Geochemical Characteristics of rubbish organic matter degradation under the research anaerobic condition and to the simulated experiment of liner system seepage effect and seepage flow mechanism, but the generation of system monitoring research rubbish biological gas, preserve, migration process and condition control and optimization, geotechnological proterties variation characteristic and the infiltration migration rules such as permeance property of laying under percolate and biogas influence.Its compact conformation, easy disassembly, good sealing effect, easy to operate, make simply, directly perceived, easy to detect, in this area, have practicality.
Description of drawings
Fig. 1 is a urban house refuse geologic landfill analogue experiment structure drawing of device of the present invention.
Fig. 2 is an I partial enlarged drawing among Fig. 1.
Fig. 3 is an II partial enlarged drawing among Fig. 1.
Fig. 4 is an III partial enlarged drawing among Fig. 1.
Fig. 5 is an IV partial enlarged drawing among Fig. 1.
Fig. 6 is a V partial enlarged drawing among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are further described:
Urban house refuse geologic landfill analogue experiment method of the present invention, by the structure of setting rubbish simulation landfill body, in the garbage loading embeading cylinder 1 from bottom to up, place liner compacting clay seam, liner draining sandy gravel stratum, waste layer, gas bearing reservoir respectively or separate gas bearing reservoir, capping layer, formation rubbish simulation landfill body structure, every layer thickness and structure are determined according to the emphasis that studies a question.By being located at the jack devices 4 on the garbage loading embeading cylinder 1, pore water pressure piezometric tube device 6 is installed respectively, gaseous tension determinator 7, pore water pressure sensor 10, oxidation-reduction potential instrument 11 and thermometer 12, test instrumentations such as liner soil moisture in layer analyzer 9 and equipment for measuring gas flow rate 8, pore water pressure piezometric tube device 6 wherein, the installation site of gaseous tension determinator 7 and pore water pressure sensor 10 is corresponding to liner draining sandy gravel stratum, the installation site of oxidation-reduction potential instrument 11 and thermometer 12 is corresponding to the house refuse layer, the installation site of gaseous tension determinator 7 and equipment for measuring gas flow rate 8 is corresponding to gas bearing reservoir or separate gas bearing reservoir, and the installation site of liner soil moisture in layer analyzer 9 is corresponding to the compacting clay seam; The data of rubbish simulation landfill body mesoporosity water pressure, gaseous tension and flow, oxidation-reduction potential, potential of hydrogen, temperature, liner soil moisture in layer are gathered in test, determine the sample time of laying, waste layer, rubbish biological gas, percolate, at last the sample that collects is tested and analyzed.One of its purpose is to gather waste layer oxidation-reduction potential, potential of hydrogen, temperature in the garbage loading embeading cylinder 1 by test, the gaseous tension and the flow of gas bearing reservoir or separation gas bearing reservoir, and the gaseous sample constituent analysis, the geochemical migration feature of organic ambient condition, gas generation process and the gas that ferments of rubbish is carried out dynamic monitoring; By the organic composition analysis of the rubbish sample gathered and further microbe culture, obtain microbial population number change and organic composition Changing Pattern under the simulated experiment condition, set up the relation between microbial population variation, the variation of rubbish organic composition and organic gas production rate, gas production rate, the organic matter transformation efficient.Two of purpose is values of utilizing pore water pressure piezometric tube device and pore water pressure sensor to measure, inquires into the permeance property variation characteristic of drainage blanket; By sampling and testing, determine the pore character and the pore filling feature of drainage blanket; Measure the change of moisture content of soil layer different depth by the analyzer that is arranged at diverse location liner soil layer in the compacting soil layer respectively, grasp the seepage flow feature of percolate in landfill liner soil layer.Under experimentation controlled condition, rubbish generation biochemical reaction impels that unique characteristics, leachate quality change in the garbage loading embeading gas generation process, constantly produces landfill gas.By the percolate circulation system 5, pore water pressure piezometric tube device 6, gaseous tension determinator 7, equipment for measuring gas flow rate 8, liner soil moisture in layer analyzer 9, pore water pressure sensor 10, oxidation-reduction potential instrument 11, thermometer 12 etc., the geochemical migration feature of system measurement and organic gas generation process of research rubbish and gas, understand under the different simulated experiment conditions, the seepage flow feature of percolate in drainage blanket and compacting clay seam, and to the rule that influences of drainage blanket and compacting clay seam permeance property and other geotechnological proterties.Height of water level in the garbage loading embeading cylinder 1 can be observed and control by observing perspective window 3, jack devices 4 and the percolate circulation system 5.For preventing side leakage, before the filling embedding material, need smear one deck butter at garbage loading embeading cylinder 1 inwall.When measuring pore air pressure,, the microporous membrane 23 of permeable watertight is placed in the gaseous tension determinator for gas in the percolate and fluid separation applications.For the permeance property of true reflection drainage blanket under factor effects such as landfill gas, when measuring the piezometric tube water column, need in the pressure measurement flexible pipe, place permeable air-locked potter's clay plate 32.
Urban house refuse geologic landfill analogue experiment device of the present invention, as shown in Figure 1, with flange 2 with two cylinders, go to the bottom and loam cake connect and compose garbage loading embeading cylinder 1, garbage loading embeading cylinder 1 is connected by reinforcement 14 with flange 2, garbage loading embeading cylinder 1 is provided with observes perspective window 3 and jack devices 4, and garbage loading embeading cylinder 1 is provided with the percolate circulation system 5, pore water pressure piezometric tube device 6, gaseous tension determinator 7, equipment for measuring gas flow rate 8, liner soil moisture in layer analyzer 9, pore water pressure sensor 10, oxidation-reduction potential instrument 11, thermometer 12 and percolate container 13.Equipment for measuring gas flow rate 8, pore water pressure sensor 10, thermometer 12 all by insertion be provided with the punching plug 19 jack devices 4 be connected with garbage loading embeading cylinder 1.Observing perspective window 3 is realized by the organic glass that bends to certain radian that is welded on the garbage loading embeading cylinder 1, experimental needs can and be adjusted in the jack devices 4 of diverse location on the garbage loading embeading cylinder 1 the test instrumentation setting, jack devices 4 can be used as thief hole or the instrument jack uses, jack devices 4 constitutes by being welded on external fiber tube joint 15 on the landfill cylinder, that diameter does not wait, rubber cushion 17,18 and internal thread cap 16, and is shown in Figure 2.The inserted link 20 of liner soil moisture in layer analyzer 9 inserts in the tilting jack devices 4, insert in the garbage loading embeading cylinder 1 by punching plug 19, punching plug 19 is positioned in the nipple 15, the internal thread cap 16 that to be furnished with rubber cushion 17 is threaded with nipple 15, and plug screwed, plug and liner soil moisture in layer analyzer junction seal with fluid sealant, and be shown in Figure 3.Gaseous tension determinator 7 is directly connected on the jack 21 by loose joint joint 22, is furnished with rubber cushion in the loose joint joint 22, and is connected with external fiber tube joint 24, and the microporous membrane 23 of permeable watertight is placed in the junction.External fiber tube joint 24 passes through the PVC glue bond with threeway 25, second of threeway is crossed all with glued with it straight pipe and is connected with ball valve 27, and gas gauge 29 inserts in the punching plug 28, and together inserts in the ball valve 27, the threeway of threeway is connected with ball valve 26 by straight pipe, and is shown in Figure 4.Pore water pressure piezometric tube device 6 is made of jack devices 4 and the punching plug 19 and the hollow copper tubing 30 in the plug, flexible pipe 31 and the pressure measurement glass tube 33 that are located at wherein, flexible pipe 31 adopts emulsion tube, by flexible pipe 31 hollow copper tubing 30 and pressure measurement glass tube 33 are linked together, be placed with permeable air-locked potter's clay plate 32 in the flexible pipe 31, as shown in Figure 5.Oxidation-reduction potential instrument 11 is provided with combination electrode 34, and electrode 34 inserts in the jack devices 4 that is provided with punching plug 19, utilizes internal thread cap 16 and rubber cushion 17 plug 19 that will punch to be tightened in the nipple 15, as shown in Figure 6.The percolate circulation system 5 is made of the ball valve, connecting pipe, ebullator, connecting pipe joint, the threeway that are connected with garbage loading embeading cylinder 1 jack devices 4.Equipment for measuring gas flow rate 8, oxidation-reduction potential instrument 11 and thermometer 12 directly insert in the garbage loading embeading cylinder 1 by punching plug 19 and jack devices 4, and punching plug 19 places in the external fiber tube joint 15 that is welded on the garbage loading embeading cylinder 1.Punching plug 19 seals with fluid sealant with equipment for measuring gas flow rate 8, oxidation-reduction potential instrument 11 and thermometer 12 junctions.More than various test instrumentations all can select the jack devices 4 of diverse location to peg graft, finish the DATA REASONING of different needs.
Specific implementation process: in the garbage loading embeading cylinder 1 from bottom to up, the laying that filling is made of compacting clay seam and draining sandy gravel stratum in the past respectively garbage loading embeading cylinder 1, the house refuse layer, gas bearing reservoir or separation gas bearing reservoir, the material of clay capping layer, form rubbish simulation landfill body, corresponding landfill layer position is provided with corresponding mensuration system respectively in the jack devices 4 that is provided with on garbage loading embeading cylinder 1, as pore water pressure piezometric tube device 6, the installation site of gaseous tension determinator 7 and pore water pressure sensor 10 is corresponding to liner draining sandy gravel stratum, the installation site of oxidation-reduction potential instrument 11 and thermometer 12 is corresponding to the house refuse layer, gaseous tension determinator 7 and equipment for measuring gas flow rate 8 installation sites are corresponding to gas bearing reservoir, and liner soil moisture in layer analyzer 9 installation sites are corresponding to the compacting clay seam.Pore water pressure piezometric tube device 6, gaseous tension determinator 7, pore water pressure sensor 10, oxidation-reduction potential instrument 11 and thermometer 12 are located at the top of garbage loading embeading cylinder 1, and liner soil moisture in layer analyzer 9 is provided with 4, is located at the bottom of cylinder 1.Determine sample time by the data that test instrumentation reads, reading as liner soil moisture in layer analyzer 9 reduces gradually, the water cut that detecting instrument for moisture content position soil layer is described increases gradually, when reading reduces to zero, illustrate that 9 corresponding soil layers of liner soil moisture in layer analyzer reach capacity.At this moment, can open the internal thread cap 16 of correspondence position jack devices 4 and take a sample, deliver to the related experiment chamber sample is tested.
Adopt oxidation-reduction potential instrument 11, equipment for measuring gas flow rate 8, gaseous tension determinator 7, gaseous sample collection and constituent analysis, the geochemical migration feature of the organic fermentation media condition of rubbish, gas generation process and gas is carried out study on monitoring.By sampling and further microbe culture, grasp microbial population number change rule under the different simulated experiment conditions, microbial population change with the landfill yard stabilization procedures in relation between gas production rate and the gas production rate, study the relation of heterogeneity organic matter degradation process and methane gas production rate, gas production rate.By the mensuration of pore water pressure piezometric tube device 6 and pore water pressure sensor 10, inquire into the permeance property variation characteristic of different structure and different grain size feature drainage blanket.By sampling, determine the pore character and the pore filling feature of drainage blanket.Liner soil moisture in layer analyzer 9 by being arranged at diverse location in the compacting soil layer is respectively measured the change of moisture content of soil layer different depths, grasps the seepage flow feature of percolate in landfill liner soil layer.By the jack in the compacting clay seam is set, finish sampling, carry out the analysis and test of sample, grasp the geotechnological proterties of compacting clay under the percolate long term and change characteristics.
Claims (8)
1. urban house refuse geologic landfill analogue experiment method is characterized in that:
Step 1: at first set rubbish simulation landfill body structure, laying, house refuse layer, gas bearing reservoir that constitutes by compacting clay seam and draining sandy gravel stratum toward interior the filling of garbage loading embeading cylinder (1) by the layering from bottom to up of landfill body structure or the material of separating gas bearing reservoir, clay capping layer, formation rubbish is simulated the landfill body;
Step 2: in the jack devices (4) on garbage loading embeading cylinder (1) pore water pressure piezometric tube device (6) is installed respectively, gaseous tension determinator (7), pore water pressure sensor (10), oxidation-reduction potential instrument (11), thermometer (12), liner soil moisture in layer analyzer (9) and equipment for measuring gas flow rate test instrumentations such as (8), pore water pressure piezometric tube device (6) wherein, the installation site of gaseous tension determinator (7) and pore water pressure sensor (10) is corresponding to liner draining sandy gravel stratum, the installation site of oxidation-reduction potential instrument (11) and thermometer (12) is corresponding to the house refuse layer, gaseous tension determinator (7) and equipment for measuring gas flow rate (8) installation site are corresponding to gas bearing reservoir or separate gas bearing reservoir, and liner soil moisture in layer analyzer (9) installation site is corresponding to the compacting clay seam;
Step 3: the data of rubbish simulation landfill body mesoporosity water pressure, gaseous tension and flow, oxidation-reduction potential, potential of hydrogen, temperature, compacting liner soil moisture in layer are gathered in test, determine the sample time of laying, waste layer, rubbish biological gas, percolate, the sample that collects is tested and analyzed.
2. urban house refuse geologic landfill analogue experiment device, it is characterized in that: it comprises and being connected by flange (2), the garbage loading embeading cylinder (1) that has base and top cover, the housing of cylinder (1) is provided with observes perspective window (3), and be provided with a plurality of jack devices (4) of inserting different probes, by the jack devices (4) on the garbage loading embeading cylinder (1), be provided with a plurality of pore water pressure piezometric tube devices (6) and gas pressure measuring unit (7), and be plugged with the percolate circulation system (5), equipment for measuring gas flow rate (8), a plurality of liner soil moisture in layer analyzers (9), pore water pressure sensor (10), oxidation-reduction potential instrument (11), thermometer (12), the percolate circulation system (5) jack devices (4) last with garbage loading embeading cylinder (1) respectively and on the top cover links to each other.
3. urban house refuse geologic landfill analogue experiment device according to claim 2 is characterized in that: described jack devices (4) by external fiber tube joint (15), be located at the rubber cushion (17,18) of external fiber tube joint (15) end face, matching with external fiber tube joint (15) merges the internal thread cap (16) have through hole and forms.
4. according to claim 2 or 3 described urban house refuse geologic landfill analogue experiment devices, it is characterized in that: the described percolate circulation system (5) by pump, insert connecting pipe joint and ball valve in the jack devices (4), the percolate container (13) that is connected with threeway with flexible pipe forms.
5. according to claim 2 or 3 described urban house refuse geologic landfill analogue experiment devices, it is characterized in that: described pore water pressure piezometric tube device (6) by be located at punching plug (19) in the jack devices (4), insert hollow copper tubing (30) in it, pressure measurement glass tube (33), flexible pipe (31) that hollow copper tubing (30) and pressure measurement glass tube (33) are connected as a single entity form, and is provided with permeable air-locked potter's clay plate (32) in the flexible pipe (31).
6. urban house refuse geologic landfill analogue experiment device according to claim 2, it is characterized in that: two ball valves (26,27) of the different directions that described gaseous tension determinator (7) connects by the pipe adapter (24) that is fixed on jack (21) on the garbage loading embeading cylinder (1), connected by loose joint joint (22), by threeway (25) constitute, ball valve (27) is gone up by punching plug (28) and is provided with gas gauge (29), and the end of pipe adapter (24) is provided with the microporous membrane (23) of permeable watertight.
7. according to claim 2 or 3 described urban house refuse geologic landfill analogue experiment devices, it is characterized in that: described a plurality of liner soil moisture in layer analyzers (9) series arrangement that is located at garbage loading embeading cylinder (1) bottom, the inserted link (20) of each liner soil moisture in layer analyzer (9) inserts in the jack devices (4) that is provided with punching plug (19) and is obliquely installed.
8. urban house refuse geologic landfill analogue experiment device according to claim 2, it is characterized in that: described can be single cylinder by flange (2) garbage loading embeading cylinder (1) that connect, that have base and top cover, also can be connected by a plurality of cylinders to form.
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| CNB2006100404975A CN100535662C (en) | 2006-05-19 | 2006-05-19 | Urban house refuse geologic landfill analogue experiment method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088851A (en) * | 2013-01-31 | 2013-05-08 | 中国科学院武汉岩土力学研究所 | Effect losing damage simulation system for composite seepage-proofing liner |
| CN101614724B (en) * | 2009-07-17 | 2013-10-09 | 东莞市升微机电设备科技有限公司 | Device for biodegradation tests |
| CN114594228A (en) * | 2022-01-27 | 2022-06-07 | 浙江大学滨海产业技术研究院 | Microorganism-driven in-situ ecological simulation device and method for gathering and storing biogas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6499412B2 (en) * | 2000-09-15 | 2002-12-31 | Rohm And Haas Company | Method of firebox temperature control for achieving carbon monoxide emission compliance in industrial furnaces with minimal energy consumption |
| CN1731178A (en) * | 2005-08-25 | 2006-02-08 | 浙江大学 | Urban domestic garbage degradation-compression tester |
| CN2898826Y (en) * | 2006-05-19 | 2007-05-09 | 中国矿业大学 | Geologic-bury analog experimental apparatus for urban refuse |
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- 2006-05-19 CN CNB2006100404975A patent/CN100535662C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614724B (en) * | 2009-07-17 | 2013-10-09 | 东莞市升微机电设备科技有限公司 | Device for biodegradation tests |
| CN103088851A (en) * | 2013-01-31 | 2013-05-08 | 中国科学院武汉岩土力学研究所 | Effect losing damage simulation system for composite seepage-proofing liner |
| CN114594228A (en) * | 2022-01-27 | 2022-06-07 | 浙江大学滨海产业技术研究院 | Microorganism-driven in-situ ecological simulation device and method for gathering and storing biogas |
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Granted publication date: 20090902 Termination date: 20120519 |