CN104140153A - Device for remediating rocks environmental pollution by nanotechnology and application thereof - Google Patents
Device for remediating rocks environmental pollution by nanotechnology and application thereof Download PDFInfo
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- CN104140153A CN104140153A CN201310168371.6A CN201310168371A CN104140153A CN 104140153 A CN104140153 A CN 104140153A CN 201310168371 A CN201310168371 A CN 201310168371A CN 104140153 A CN104140153 A CN 104140153A
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- 239000002101 nanobubble Substances 0.000 claims abstract description 136
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Abstract
A device for remediating rocks environmental pollution by a nanotechnology and an application thereof are disclosed. A pumping well is arranged 5-10m away from a water injection well along the flowing direction of subsurface flow. A filter screen is arranged in both the water injection well and the pumping well. A nanobubble saturated solution injection assembly is arranged on the ground between the water injection well and the pumping well. The nanobubble saturated solution injection assembly is respectively connected with the water injection well and the pumping well through pipelines. Through a nanobubble saturated solution, rocks environmental pollution is processed. The device provided by the invention has advantages of low cost, good remediation effect and high remediation efficiency. In addition, processing is thorough and secondary pollution is not caused; organic pollutants and heavy metal pollutants in underground water and saturated soil areas below the underground water can be removed effectively; and only by arranging corresponding numbers of the water injection wells and the pumping wells with cooperation of one or more sets of equipment, the device can be applied in the field of pollution treatment of rock soil and underground water with different pollution sources, different pollution areas, different pollution degrees and different pollution depths.
Description
Technical field
The present invention relates to a kind of soil and groundwater pollution and process reparation field, relate in particular to a kind of use and contain single kind or multiple reactant gases, and reactant gases is present in nano bubble form treatment unit and the application processing method thereof that being applied in saturated liquid repaired rock stratum environment organism and heavy metal contamination.
Background technology
Along with Chinese Urbanization, the quickening of process of industrialization, and economic fast development, industrial production is also day by day serious to the pollution of surrounding environment, especially for the pollution of soil and underground water, more have from city to the serious stern form of rural development, data presentation: China has had 2,000 ten thousand hectares of arable lands to be subject to heavy metal contamination, what be wherein subject to mining area pollution reaches 2,000,000 hectares, be subject to reach 5,000,000 hectares of petroleum pollution, industrial triwaste pollution reach 1,000 ten thousand hectares, what solid waste stacking was polluted reaches 50,000 hectares, and the area of sewage irrigation polluted agricultural land reaches 3,300,000 hectares.
Therefore, from source, pick up, the reparation of China's urban industry contaminated soil rural pollution soil remediation that compares is more urgent, China's contaminated soil main source comprises at present: heavy metal contamination, persistence organic pollutant (POPs) pollutes, organic contamination is the contaminated sites such as main oil, chemical industry, coking, and electron wastes is processed contaminated site.
In addition, the groundwater pollution situation of China's city and country also allows of no optimist.At present China's mining of groundwater total amount has accounted for 18% of total supply, and the domestic water of northern area 65%, 50% process water and 33% agricultural irrigation water are from underground water.In 657 cities, the whole nation, there is more than 400 to take underground water as drinking water source.But area, investigation display section groundwater mining is serious, water level continuous decrease; The seepage infiltrations such as some Regional City sewage, domestic refuse and trade waste soiling solution and fertilizer and pesticide, cause Groundwater Environmental Quality deterioration, pollution problem to become increasingly conspicuous, and cause to people's productive life and have a strong impact on.Domesticly also there is the accident that a lot of groundwater pollutions affect resident living health and safety.
Along with plan the relevant laws and regulations such as > > and < < whole nation pollution prevention plan (2011-the year two thousand twenty) > > by China < < soil pollution " 12 ", China has put on schedule for reparation and the control of soil pollution and groundwater pollution.For this reason, can be effectively, the soil of energy-conserving and environment-protective and underground water recovery technique are faced with the huge market requirement in China.
The current reparation for underground water has multiple technologies and exists, as: extract treatment technology, monitoring natural attenuation technology, based technique for in-situ remediation out.Wherein based technique for in-situ remediation, because cost is lower, to factors such as environmental influence are little, is the comparatively general utilisation technology of current underground water reparation.
And current original position repairing method mainly comprises in-situ chemical recovery technique, traditional groundwater mining technology, and bioremediation technology.Wherein:
1. in-situ chemical recovery technique comprises in-situ reducing recovery technique and in-situ oxidation recovery technique, be mainly by inject oxygenant or reductive agent in soil or underground water, to reach the object of decomposing organic pollutant, in to contaminated soil and underground water, add hydrogen peroxide or ozone as oxygenant.
In-situ chemical recovery technique is relatively reliable, and the cycle is short, but cost is relatively high.
2. the facture of drawing water is traditional underground water recovery technique, mainly by pumped well reasonable in design and underground water flow field, formation comprises the hold range that whole underground water pollutes pinnule, and groundwater abstraction constantly makes to pollute dizzy and pollution level and progressively reduces.
But existing, this technology processes halfway shortcoming.
3. biological reinforcing technology is mainly on the basis of bioremediation technology, by improving environment for microbial growth and Degradation, be subject to/donor of enough electronics is provided, and nutritive salt etc., rise to biological metabolism and Degradation Level, thereby reach the object of more high efficiency degraded soil and underground water pollutant.
At present domestic for biological reinforced recovery technique, especially the application of nanometer technique in contaminated soil and underground water reparation, launched relevant research, if the micro-nano aeration process of Jiang Haoyu Wu Tao (2011) is in the application aspect water environment treatment, Yang Li etc. (2012) about micro-nano Bubble Characteristics and the researchs such as application in environmental pollution is controlled.
It is worth mentioning that application number is 201210041355.6 application for a patent for invention, this aims to provide technology and system that the micro-nano bubble of a kind of use is repaired underground polluted water strengthening original position, this patent application injects micro-nano bubble (size definition is 100nm-0.2mm) by the water injection well to being located at upstream and nutritive salt is contaminant degradation or for microorganism is lasting, supplements be subject to/donor of electronics, thereby play the effect of enhanced biological reaction, by pumped well, draw water, form the flow field of underground water, establish in addition detection well, degree of decomposition so as to detection of contamination, regulate aerating apparatus index of correlation, and current etc.This patent has well recognized that the oxygen supply of micro-nano bubble is effective, and the time length is long, and range of influence is large, can make up the deficiency of the conventional bioremediation technologies such as natural degradation and biological ventilation, also possesses cost low, the advantages such as efficient energy-saving.
But the related measure in this patent and means also all belong to means standard, general in biological reinforcing technology field, and this patent also has following limitation:
1. what this patent was used is the micro-nano bubble (size definition is 100nm-0.2mm) that traditional aeration way produces, but not nano bubble, according to U.S. US2007/0286795A1 patent, the nano bubble producing generally tens between hundreds of nanometer, and that nano bubble will be good than micro-nano bubble in relevant performance is many.
2. this patent explicitly points out mainly for different organic pollutants repair, and has ignored the heavy metal part in underground water and soil.
3. water injection well of upstream and downstream facility of this patent and the structure design of a pumped well, mention as applicant, and this technology is suitable for limited area, and the site remediation of high-pollution load, has larger limitation.
4. the structure design of this patented technology is comparatively applicable to the groundwater pollution of deep layer, for the underground water of shallow rock stratum, and the soil pollution on top layer, this technology is difficult to applicable.
In sum, current underground water with and under various rock stratum soil and the rock stratum groundwater pollution treatment process of formed rock stratum, soil saturation region environment, exist cost relatively high, process thoroughly, cannot process heavy metal, the various defects such as limitation is larger.
Summary of the invention
In order to solve current rock stratum soil and rock stratum groundwater pollution, process existing variety of problems, the invention provides a kind of device and application that adopts nanotechnology to repair rock stratum environmental pollution, for underground water with and under the situation of rock stratum environmental pollution in soil saturation district, rock stratum environment is repaired, described in the present invention is specific as follows:
Adopt nanotechnology to repair a device for rock stratum environmental pollution, comprise water injection well, it is characterized in that:
The quantity of described water injection well is 1～4, and the degree of depth of water injection well is 5～15 meters, and water injection well 5～10m place in interval in the direction mobile along groundwater flow is provided with pumped well;
On described water injection well and the ground between pumped well, be provided with a nano bubble saturated solution fill assembly, this nano bubble saturated solution fill assembly respectively with water injection well be connected with pumped well pipeline;
In described water injection well and pumped well, be provided with filter screen.
According to a kind of device that adopts nanotechnology to repair rock stratum environmental pollution of the present invention, it is characterized in that, described nano bubble saturated solution fill assembly comprises nano-bubble generator, nano bubble saturated solution blendes together storer, water injection pipe, saturated solution injection pump, drinking-water pipe, lift pump and delivery pipe, , wherein nano-bubble generator blendes together storer with nano bubble saturated solution and is connected, the interior pure water that nano-bubble generator blendes together the nano bubble of generation and nano bubble saturated solution with storer is mixed to form the saturated solution with nano bubble, nano bubble saturated solution blendes together storer one end and is provided with water injection pipe, water injection pipe is connected with water injection well pipeline, on the pipeline of water injection pipe, be provided with saturated solution injection pump, saturated solution injection pump blendes together the saturated solution with nano bubble with storer by water injection pipe from nano bubble saturated solution and injects water injection well, and blending together the other end of storer, nano bubble saturated solution is provided with drinking-water pipe, drinking-water pipe is connected with pumped well pipeline, on the pipeline of drinking-water pipe, be provided with lift pump, lift pump is extracted the water in pumped well out, wherein the water of a part blendes together storer by the drinking-water pipe injection nano bubble saturated solution that circulate, the water of another part is directly disposed to earth's surface by the delivery pipe being connected with lift pump.
According to a kind of device that adopts nanotechnology to repair rock stratum environmental pollution of the present invention, it is characterized in that, the nano bubble diameter that described nano-bubble generator produces is 50～300 nanometers.
Diameter be 50～300 nanometers nano bubble relevant depollute, decompose will be good than current micro-nano bubble in heavy metal performance many.
According to a kind of device that adopts nanotechnology to repair rock stratum environmental pollution of the present invention, it is characterized in that, on the bottom borehole wall that is arranged on water injection well and pumped well that is cover type of described filter screen, this filter screen is arranged on height in water injection well and pumped well and the deep equality of the groundwater flow in water injection well and pumped well.
The effect of filter screen is to strengthen the mobility with the saturated solution of nano bubble, and filters out unnecessary sand grain impurity, therefore the height of filter screen should be not less than the degree of depth of underground water, because water injection well has the different degree of depth, therefore adopt the filter screen of different heights.
Adopt nanotechnology to repair an application for the device of rock stratum environmental pollution, a kind of device that adopts nanotechnology to repair rock stratum environmental pollution based on above-mentioned, described in it is specific as follows:
1) in the mobile direction along groundwater flow of water injection well, 5～10m place, interval is provided with pumped well;
2) use water level monitor device to confirm the groundwater depth in water injection well and pumped well, and on the bottom borehole wall separately, be respectively the filter screen that arranges of cover type, the deep equality of the groundwater flow in the height of this filter screen and water injection well and pumped well;
3) ground surface at water injection well and pumped well arranges nano bubble saturated solution fill assembly, and the water injection pipe of this assembly blendes together storer with nano bubble saturated solution respectively with one end of drinking-water pipe and is connected, and the other end is inserted respectively in water injection well and pumped well;
Water injection well forms corresponding underground water soak zone, and soak zone blendes together storer with water injection pipe with nano bubble saturated solution by saturated solution injection pump and is connected.
4) start the nano-bubble generator of nano bubble saturated solution fill assembly, make it produce nano bubble, and this nano bubble injection nano bubble saturated solution is blended together to the pure water in storer, make it be mixed to form the saturated solution with nano bubble, then by starting saturated solution injection pump, the saturated solution with nano bubble is injected to water injection well, mix with the contaminated underground water in water injection well, by the saturated solution of nano bubble and the pollutant reaction of underground water and by its decomposition;
Theoretical basis of the present invention is that nano bubble possesses better stability than micron bubble or micro-nano bubble in saturated solution, and the existence of longer time, with higher electric charge, therefore possesses better pollution capacity of decomposition.The diameter dimension size of nano bubble is not from 50 nanometers to 300 nanometers etc., to the raising of rock stratum environment remediation efficiency, be to exist by reactant gases form with nano bubble in saturated solution, and design a set of corresponding employing nanotechnology and repair the device of rock stratum environmental pollution and realize this goal.
The source of pollution that depend primarily on rock stratum environment in order to there is the reactant gases of nano bubble of the present invention, can be the hydrogen that guarantees reducing environment, or guarantee the air of well-oxygenated environment, oxygen, or ozone, can be in order to improve the mixed gas of microbial nutrition environment, or in order to promote the gas of the chemical reaction that pollutent decomposes.Oxidizing gas, as ozone, can improve the decomposition of chlorinated hydrocarbon (as: PCE, TCE, DCE, VC, BTEX, PCBs, TPH, agricultural chemicals etc.), and some heavy metal ion is as arsenious decomposition.Reducing gas, as hydrogen, can improve hydrochloric ether, and the decomposition of heavy metal chromium.Air and oxygen can improve the TPH that biology in situ is repaired, BTEX, and the decomposition of PAHs.
5) lift pump that starts nano bubble saturated solution fill assembly draws water the underground water by processing and crossed by strainer filtering with the saturated solution of nano bubble of pumped well, wherein a part of water again enters nano bubble saturated solution by drinking-water pipe and blendes together storer, and another part directly enters surface layer by delivery pipe.
Pumped well can draw water from top layer and the deep layer of rock stratum environment respectively, thereby strengthen the flow in the underground water region of polluting with the saturated solution of nano bubble, and in order to reduce the use with the saturated liquid of nano bubble, the underground water part of extraction is back to nano bubble saturated solution again and blendes together storer, processed underground water directly enters surface layer and also earth's surface contaminate environment has been played to cleaning action in addition.
The present invention, for pollution in wide area region, can repeat to offer many places water injection well and pumped well and repeat to arrange many these devices of cover, to reach better rock stratum environment remediation effect.
Use a kind of device that adopts nanotechnology to repair rock stratum environmental pollution of the present invention to obtain following beneficial effect:
1. a kind of device and application that adopts nanotechnology to repair rock stratum environmental pollution of the present invention, its cost is lower, repairing effect is good, remediation efficiency is high, and process and thoroughly do not form secondary pollution, and can effectively remove Some Organic Pollutants and the heavy metal contaminants in underground water and lower saturated soil region thereof;
2. a kind of device and application that adopts nanotechnology to repair rock stratum environmental pollution of the present invention, its limitation is less, pollution process range is large, only need offer water injection well and the pumped well of respective numbers, coordinate one or more sets to pollute the nano bubble saturated solution fill assembly of processing use, according to the difference of source of pollution, use different reactant gasess just to can be applicable to different source of pollution, different contaminated areas, different pollution levels, the rock stratum environment of different pollution depths is repaired, and is applicable to soil and the groundwater pollution process field of various dark, shallow rock stratum environment.
Accompanying drawing explanation
Fig. 1 is a kind of concrete schematic diagram that adopts nanotechnology to repair the device of rock stratum environmental pollution and the water injection well that is arranged on different depths of application and pumped well of the present invention;
Fig. 2 is a kind of concrete schematic diagram that adopts nanotechnology to repair the device of rock stratum environmental pollution and the setting of the monomer of application of the present invention.
In figure: 1-water injection well, 2-pumped well, A-nano bubble saturated solution fill assembly, A1-nano-bubble generator, A2-nano bubble saturated solution blendes together storer, A3-water injection pipe, A4-saturated solution injection pump, A5-drinking-water pipe, A6-lift pump, A7-delivery pipe, B-filter screen.
Embodiment
Below in conjunction with drawings and Examples, a kind of device and application that adopts nanotechnology to repair rock stratum environmental pollution of the present invention is further described.
Embodiment 1
As shown in Figure 1, a kind of device that adopts nanotechnology to repair rock stratum environmental pollution of the present invention, comprise water injection well 1, the quantity of described water injection well is 1～4 (in the present embodiment, being 2), the degree of depth of water injection well is 5～15 meters (in the present embodiment, being 8 meters and 15 meters), and the lateral arrows direction that water injection well 5～10m place in interval in the direction mobile along groundwater flow is provided with in the soil of pumped well 2(Fig. 1 is direction of groundwater flow);
On ground between water injection well 1 and pumped well 2, be provided with a nano bubble saturated solution fill assembly A, this nano bubble saturated solution fill assembly respectively with water injection well be connected with pumped well pipeline;
In water injection well 1 and pumped well 2, be provided with filter screen B.
Nano bubble saturated solution fill assembly A comprises nano-bubble generator A1, nano bubble saturated solution blendes together storer A2, water injection pipe A3, saturated solution injection pump A4, drinking-water pipe A5, lift pump A6 and delivery pipe A7, wherein nano-bubble generator blendes together storer with nano bubble saturated solution and is connected, the interior pure water that nano-bubble generator blendes together the nano bubble of generation and nano bubble saturated solution with storer is mixed to form the saturated solution with nano bubble, nano bubble saturated solution blendes together storer one end and is provided with water injection pipe, water injection pipe is connected with water injection well 1 pipeline, on the pipeline of water injection pipe, be provided with saturated solution injection pump, saturated solution injection pump blendes together the saturated solution with nano bubble with storer by water injection pipe from nano bubble saturated solution and injects water injection well, and blending together the other end of storer, nano bubble saturated solution is provided with drinking-water pipe, drinking-water pipe is connected with pumped well 2 pipelines, on the pipeline of drinking-water pipe, be provided with lift pump, lift pump is extracted the water in pumped well out, wherein the water of a part blendes together storer by the drinking-water pipe injection nano bubble saturated solution that circulate, the water of another part is directly disposed to earth's surface by the delivery pipe A7 being connected with lift pump.
The nano bubble diameter that nano-bubble generator A1 produces is 50～300 nanometers.
Diameter be 50～300 nanometers nano bubble relevant depollute, decompose will be good than current micro-nano bubble in heavy metal performance many.
On the bottom borehole wall that is arranged on water injection well 1 and pumped well 2 that is cover type of filter screen B, this filter screen is arranged on height in water injection well and pumped well and the deep equality of the groundwater flow in water injection well and pumped well.
The effect of filter screen is to strengthen the mobility with the saturated solution of nano bubble, and filter out unnecessary sand grain impurity, therefore the height of filter screen should be not less than the degree of depth of underground water, because water injection well has the different degree of depth, therefore adopt the filter screen of different heights, filter screen height corresponding in the present embodiment is 2～3 meters and 5～8 meters.
Of the present inventionly a kind ofly adopt the concrete installation of the device that nanotechnology repairs rock stratum environmental pollution and apply as described below:
1) in the mobile direction along groundwater flow of water injection well 1,5～10m place, interval is provided with pumped well 2;
2) use water level monitor device to confirm the groundwater depth in water injection well 1 and pumped well 2, and on the bottom borehole wall separately, be respectively cover type filter screen B, the deep equality of the groundwater flow in the height of this filter screen and water injection well and pumped well be set;
3) ground surface at water injection well and pumped well arranges nano bubble saturated solution fill assembly A, the water injection pipe A3 of this assembly blendes together storer A2 with nano bubble saturated solution respectively with one end of drinking-water pipe A5 and is connected, and the other end is inserted respectively in water injection well 1 and pumped well 2;
Water injection well forms corresponding underground water soak zone, and soak zone blendes together storer with water injection pipe with nano bubble saturated solution by saturated solution injection pump and is connected.
4) start the nano-bubble generator A1 of nano bubble saturated solution fill assembly A, make it produce nano bubble, and this nano bubble injection nano bubble saturated solution is blended together to the pure water in storer A2, make it be mixed to form the saturated solution with nano bubble, then by starting saturated solution injection pump A4, the saturated solution with nano bubble is injected to water injection well 1, mix with the contaminated underground water in water injection well, by the saturated solution of nano bubble and the pollutant reaction of underground water and by its decomposition;
The source of pollution that depend primarily on rock stratum environment in order to there is the reactant gases of nano bubble of the present invention, can be the hydrogen that guarantees reducing environment, or guarantee the air of well-oxygenated environment, oxygen, or ozone, can be in order to improve the mixed gas of microbial nutrition environment, or in order to promote the gas of the chemical reaction that pollutent decomposes.Oxidizing gas, as ozone, can improve the decomposition of chlorinated hydrocarbon (as: PCE, TCE, DCE, VC, BTEX, PCBs, TPH, agricultural chemicals etc.), and some heavy metal ion is as arsenious decomposition.Reducing gas, as hydrogen, can improve hydrochloric ether, and the decomposition of heavy metal chromium.Air and oxygen can improve the TPH that biology in situ is repaired, BTEX, and the decomposition of PAHs.
Theoretical basis of the present invention is that nano bubble possesses better stability than micron bubble or micro-nano bubble in saturated solution, and the existence of longer time, with higher electric charge, therefore possesses better pollution capacity of decomposition.The size of nano bubble is not from 50 nanometers to 300 nanometers etc., to the raising of rock stratum environment remediation efficiency, be to exist by reactant gases form with nano bubble in water or saturated solution, and design a set of corresponding employing nanotechnology and repair the device of rock stratum environmental pollution and realize this goal.
5) the lift pump A6 that starts nano bubble saturated solution fill assembly A being processed with the saturated solution of nano bubble and being drawn water by the underground water that filter screen B crosses filtration pumped well 2, wherein a part of water again enters nano bubble saturated solution by drinking-water pipe A5 and blendes together storer A2, and another part is directly entering surface layer by delivery pipe A7.
Pumped well draws water from top layer and the deep layer of rock stratum environment respectively, thereby strengthen the flow in the underground water region of polluting with the saturated solution of nano bubble, and in order to reduce the use with the saturated liquid of nano bubble, the underground water part of extraction is back to nano bubble saturated solution again and blendes together storer, processed underground water directly enters surface layer and also earth's surface contaminate environment has been played to cleaning action in addition.
The present invention, for pollution in wide area region, can repeat to offer many places water injection well and pumped well and repeat to arrange many covers device of the present invention, to reach better rock stratum environment remediation effect.
Embodiment 2
For soil or the groundwater pollution region of small area, single cover a kind of device that adopts nanotechnology to repair rock stratum environmental pollution of the present invention can be set, also can reach good rock stratum environment remediation effect.
As shown in Figure 2, of the present invention a kind of device that adopts nanotechnology to repair rock stratum environmental pollution of setting, its installation and application mode, as described in above-described embodiment 1, are carried out soil or groundwater pollution processing to dark, shallow-layer rock stratum environment.
In addition, as need reply earth's surface, pollute, also can use direct sprinkling with the way of the saturated solution of nano bubble.
A kind of device and application that adopts nanotechnology to repair rock stratum environmental pollution of the present invention, its cost is lower, repairing effect is good, remediation efficiency is high, and process and thoroughly do not form secondary pollution, and can effectively remove Some Organic Pollutants and the heavy metal contaminants in underground water and lower saturated soil region thereof, and limitation of the present invention is less, pollution process range is large, only need offer water injection well and the pumped well of respective numbers, coordinate one or more sets to pollute the nano bubble saturated solution fill assembly of processing use, according to the difference of source of pollution, use different reactant gasess just to can be applicable to different source of pollution, different contaminated areas, different pollution levels, the rock stratum environment of different pollution depths is repaired, be applicable to various dark, the soil of shallow rock stratum environment and groundwater pollution process field.
Claims (5)
1. adopt nanotechnology to repair a device for rock stratum environmental pollution, comprise water injection well (1), it is characterized in that:
The quantity of described water injection well (1) is 1～4, and the degree of depth of water injection well is 5～15 meters, and water injection well 5～10m place in interval in the direction mobile along groundwater flow is provided with pumped well (2);
On ground between described water injection well (1) and pumped well (2), be provided with a nano bubble saturated solution fill assembly (A), this nano bubble saturated solution fill assembly respectively with water injection well be connected with pumped well pipeline;
In described water injection well (1) and pumped well (2), be provided with filter screen (B).
2. a kind of device that adopts nanotechnology to repair rock stratum environmental pollution as claimed in claim 1, it is characterized in that, described nano bubble saturated solution fill assembly (A) comprises nano-bubble generator (A1), nano bubble saturated solution blendes together storer (A2), water injection pipe (A3), saturated solution injection pump (A4), drinking-water pipe (A5), lift pump (A6) and delivery pipe (A7), wherein nano-bubble generator blendes together storer with nano bubble saturated solution and is connected, the interior pure water that nano-bubble generator blendes together the nano bubble of generation and nano bubble saturated solution with storer is mixed to form the saturated solution with nano bubble, nano bubble saturated solution blendes together storer one end and is provided with water injection pipe, water injection pipe is connected with water injection well (1) pipeline, on the pipeline of water injection pipe, be provided with saturated solution injection pump, saturated solution injection pump blendes together the saturated solution with nano bubble with storer by water injection pipe from nano bubble saturated solution and injects water injection well, and blending together the other end of storer, nano bubble saturated solution is provided with drinking-water pipe, drinking-water pipe is connected with pumped well (2) pipeline, on the pipeline of drinking-water pipe, be provided with lift pump, lift pump is extracted the water in pumped well out, wherein the water of a part blendes together storer by the drinking-water pipe injection nano bubble saturated solution that circulate, the water of another part is directly disposed to earth's surface by the delivery pipe being connected with lift pump.
3. a kind of device that adopts nanotechnology to repair rock stratum environmental pollution as claimed in claim 2, is characterized in that, the nano bubble diameter that described nano-bubble generator (A1) produces is 50～300 nanometers.
4. a kind of device that adopts nanotechnology to repair rock stratum environmental pollution as claimed in claim 1, it is characterized in that, on the bottom borehole wall that is arranged on water injection well (1) and pumped well (2) that is cover type of described filter screen (B), this filter screen is arranged on height in water injection well and pumped well and the deep equality of the groundwater flow in water injection well and pumped well.
5. adopt nanotechnology to repair an application for the device of rock stratum environmental pollution, based on the claims 1 to a kind of device that adopts nanotechnology to repair rock stratum environmental pollution claimed in claim 3, described in it is specific as follows:
1) in the mobile direction along groundwater flow of water injection well (1), 5～10m place, interval is provided with pumped well (2);
2) use water level monitor device to confirm the groundwater depth in water injection well (1) and pumped well (2), and on the bottom borehole wall separately, be respectively cover type filter screen (B), the deep equality of the groundwater flow in the height of this filter screen and water injection well and pumped well be set;
3) ground surface at water injection well and pumped well arranges nano bubble saturated solution fill assembly (A), one end of the water injection pipe of this assembly (A3) and drinking-water pipe (A5) blendes together storer (A2) with nano bubble saturated solution respectively and is connected, and the other end is inserted respectively in water injection well (1) and pumped well (2);
4) start the nano-bubble generator (A1) of nano bubble saturated solution fill assembly (A), make it produce nano bubble, and this nano bubble injection nano bubble saturated solution is blended together to the pure water in storer (A2), make it be mixed to form the saturated solution with nano bubble, then by starting saturated solution injection pump (A4), the saturated solution with nano bubble is injected to water injection well (1), mix with the contaminated underground water in water injection well, by the saturated solution of nano bubble and the pollutant reaction of underground water and by its decomposition;
5) start lift pump (A6) being processed with the saturated solution of nano bubble and being crossed by filter screen (B) underground water filtering and draw water pumped well (2) of nano bubble saturated solution fill assembly (A), wherein a part of water again enters nano bubble saturated solution by drinking-water pipe (A5) and blendes together storer (A2), and another part directly enters surface layer by delivery pipe (A7).
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