CN108147528B - Electrical stimulation microorganism ecological restoration device - Google Patents
Electrical stimulation microorganism ecological restoration device Download PDFInfo
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- CN108147528B CN108147528B CN201810019288.5A CN201810019288A CN108147528B CN 108147528 B CN108147528 B CN 108147528B CN 201810019288 A CN201810019288 A CN 201810019288A CN 108147528 B CN108147528 B CN 108147528B
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- 230000000638 stimulation Effects 0.000 title abstract description 15
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000003860 storage Methods 0.000 claims abstract description 30
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/106—Carbonaceous materials
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/009—Apparatus with independent power supply, e.g. solar cells, windpower, fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
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- General Chemical & Material Sciences (AREA)
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Abstract
The invention discloses an electrical stimulation microbial ecological restoration device, which comprises: the solar water heater comprises a box body, a solar cell panel, a water inlet pipe, a water outlet pipe, a water pump, a throat pipe and a gas inlet pipe, wherein the box body consists of an upper storage battery and a lower closed cavity, and the solar cell panel electrically connected with the storage battery is arranged above the box body; the water inlet pipe and the water outlet pipe are respectively arranged at the lower ends of the two sides of the cavity, activated carbon fiber filler is filled in the cavity, and the filler and the storage battery form a micro-current loop; the water inlet of the water pump is connected with the water inlet pipe, the water outlet is connected with the water outlet pipe through the throat pipe, and the throat part of the throat pipe is communicated with the air inlet pipe which is vertically upward. When the device disclosed by the invention continuously operates, aerobic microorganisms and dissolved oxygen in the water body can be continuously increased at the same time, aerobic degradation mainly occurs, pollutants in the water body can be effectively degraded, and the self-cleaning function of the river water body is gradually recovered, so that the problem of black and odor of the river water body is solved, and ecological restoration is realized.
Description
Technical Field
The invention belongs to the technical field of sewage treatment in environmental protection, and particularly relates to an electrical stimulation microorganism ecological restoration device.
Background
With the rapid development of economy and industry in China, the water environment problem in China is increasingly prominent, and urban and rural river pollution is a complex and troublesome environmental problem. Due to the serious degradation of the river pollution and the ecological system, the water quality of the river is in V-class water quality (moderate pollution) and poor V-class water quality (severe pollution), which is expressed by water eutrophication, water anoxia, water blackness and odor and the like.
The phenomenon of nausea of people caused by turbid and even blackish water body color and pungent odor is often seen in organic polluted urban inland rivers, eutrophic lakes in partial time periods, partial water areas and deeper water bodies of reservoirs. According to relevant statistical data, when the dissolved oxygen concentration DO in the water environment is more than or equal to 2mg/L, aerobic microorganisms are mainly used in the water body, the aerobic degradation effect mainly occurs, and carbon, nitrogen and sulfur in organic matters are decomposed into carbon dioxide, nitrate, sulfate and the like; when the dissolved oxygen concentration DO in the water environment is less than or equal to 0.2mg/L, anaerobic microorganisms in the water body dominate, pollutants are degraded mainly by using an anaerobic fermentation mode, and carbon, nitrogen and sulfur components in organic matters are anaerobically decomposed into CH4、NH3-N、H2S and the like. In the anaerobic environment of water body, the organic matter is decomposed into H2S and continuously ionizes HS in the water body-And S2-And a small amount of Fe originally existing in the water body2+、H+Are subjected to a chemical reaction, H2The solubility of S and the solubility product of FeS are very small, and the S can be easily separated from the water body to form FeS-based micro particles which are suspended in the water to cause the water body to blacken; the substances generated in the water body escape to the air, and the main component is CH4、NH3And H2S, etcForming a source of odor.
In the water environment ecological restoration, microorganisms are the main decomposers of water pollutants. Microbial ecological restoration is a common technical means in water body restoration. One of the most critical conditions for microbial ecological remediation is to ensure that there is sufficient dissolved oxygen in the water body. The artificial aeration and oxygenation are usually carried out on the riverway to supplement the dissolved oxygen in the riverway water body. The conventional river aeration method comprises the measures of drop aeration, an aerator, a blower, an aerator pipe and the like, and the drop aeration has no power energy requirement, but has high requirement on the terrain and needs enough altitude difference; the aeration effect of the aeration machine and the blower matched with aeration pipes is good, but external power is required, and the operation cost and the maintenance cost are increased after long-term operation. Another important condition for microbial ecological remediation is to ensure that there are sufficient aerobic microorganisms in the water body. Aerobic microorganisms are usually propagated by putting strains into a water body, but a certain strain is mainly directed at a specific type of microorganism, and the growth and propagation of the microorganism cannot be comprehensively promoted.
Disclosure of Invention
In view of the above, the present invention provides an electrical stimulation microorganism ecological restoration device, which performs micro-current stimulation and oxygenation on a water body, so as to continuously increase aerobic microorganisms and dissolved oxygen in a river water body, promote aerobic degradation in the water body in a short time, and improve water quality of the water body.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electrically stimulated microbial ecological remediation device comprising:
the storage battery box comprises a box body, a battery box body and a battery, wherein the box body is divided into an upper layer and a lower layer, the upper layer is fixedly provided with a storage battery, and the lower layer is a closed cavity;
the solar cell panel is arranged above the box body and is electrically connected with the storage battery;
the top end of the water inlet pipe is positioned in the cavity, and the water inlet pipe vertically extends downwards to enable the bottom end of the water inlet pipe to be arranged outside the cavity; the top end of the water outlet pipe is positioned in the cavity, and the water outlet pipe vertically extends downwards to enable the bottom end of the water outlet pipe to be positioned outside the cavity; the activated carbon fiber filler positioned at the bottom end of the water outlet pipe is electrically connected with a current controller through a second wire, the current controller is electrically connected with the cathode of the storage battery through a third wire, and the activated carbon fiber filler positioned at the top end of the water inlet pipe and the activated carbon fiber filler positioned at the top end of the water outlet pipe are electrically connected through a fourth wire to form a current loop;
the water pump is electrically connected with the storage battery, and a water inlet of the water pump is connected with the top end of the water inlet pipe;
the throat pipe is used for communicating the water outlet of the water pump with the top end of the water outlet pipe inside the cavity and sequentially comprises an inlet section, a contraction section, a throat part, a diffusion section and an outlet section, the inlet section is connected with the water outlet of the water pump, the outlet section is connected with the top end of the water outlet pipe, a vertically upward air inlet pipe is communicated with the throat part and penetrates through the box body, and the top end of the air inlet pipe extends out of the box body.
In a preferred technical scheme, the outer surface of the box body is coated with a waterproof coating, so that when the device is used in a river water body for a long time, water can be prevented from permeating into the box body.
In a preferred technical scheme, the box body is in a cuboid shape.
In the preferred technical scheme, the micro-current flowing through the current loop is controlled to be 5-20 mA by the current controller, so that the growth of microorganisms is obviously promoted.
In the preferred technical scheme, the diameter of inlet tube is 10 ~ 15 times of the diameter of intake pipe, the diameter of outlet pipe is 10 ~ 15 times of the diameter of intake pipe, has better efflux effect.
In the preferred technical scheme, the water inlet pipe and the water outlet pipe are both made of PE pipes (polyethylene plastic pipes), so that the cost is low and the water inlet pipe and the water outlet pipe are not easy to corrode.
In the preferred technical scheme, the volume of the cavity is 10-20 times of that of the storage battery, and the floating effect is better.
In the preferred technical scheme, the active carbon fiber has the shape diameter of 5-20 microns, the volume of micropores with the pore width of 0.5-1.5 nm accounts for more than 90% of the total pore volume, and the specific surface area is 800-1500 m2And/g, is more favorable for the attachment and growth of microorganisms.
In the invention, the cavity part is arranged in the whole device, so that the device can float on the water surface after being thrown into a river channel, the solar panel arranged above the top of the box body (floating above the water surface) generates electric power under the sunlight, and the electric power storage and power supply functions of the storage battery are combined, so that the electric power can be continuously provided for the water pump and the micro-current loop for a long time, and additional power equipment is not required. The micro-current loop is formed by electrically connecting an activated carbon fiber filler arranged in the water inlet pipe and the water outlet pipe with the storage battery, the current flowing through the loop is controlled to be micro-current of 5-20 mA by the current controller, and the micro-current can stimulate the pollutant degradation and the aerobic microorganism growth on the surface of the activated carbon fiber filler; meanwhile, by the movement of the water pump, the river water is pumped into the water inlet pipe and forms jet flow after passing through the water pump, and the air above the water surface is converged into the jet flow through the air inlet pipe to form oxygenated water, flows out through the water outlet pipe and returns to the river water. When the river water body passes through the water inlet pipe and the water outlet pipe, on one hand, under the stimulation of micro-current, pollutant degradation and aerobic microorganism growth occur on the surface of the activated carbon fiber filler; on the other hand, the concentration of dissolved oxygen in oxygenated water formed by the air converging jet flow is increased, so that an environment suitable for aerobic degradation is formed, the growth of microorganisms and the degradation of pollutants are further enhanced, the water flows back to the river channel, the pollutants in the river channel water are effectively degraded, and the self-cleaning function of the river channel water is gradually recovered, so that the problem of black and odorous river channel water is solved, and ecological restoration is realized.
Compared with the prior art, the invention has the following beneficial technical effects:
1) the device of the invention utilizes solar energy for power supply, does not need to be provided with a power device, and has low operation cost, simple and convenient maintenance and wide application range;
2) the device can simultaneously stimulate and oxygenate the water body passing through the water inlet pipe and the water outlet pipe by micro current through ingenious structural design, so that aerobic microorganisms and dissolved oxygen in the water body are continuously increased, aerobic degradation in the water body is promoted in a short time, and the water quality of the water body is improved.
3) The device has simple structure, easy manufacture and low cost, and is suitable for popularization and application;
4) the device has the advantages of small occupied area, mobility, convenience in use, low maintenance cost and wide application range.
These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, the accompanying drawings and the appended claims, wherein like reference numerals refer to like parts throughout the several views, and wherein like reference numerals refer to like parts throughout the several views.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the electro-stimulation microbial ecological restoration device of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings to more clearly understand the technical contents of the present invention.
As shown in fig. 1, in an embodiment of the present invention, an electro-stimulation microbial ecological restoration device includes: the solar water heater comprises a box body 1, a solar cell panel 2, a water inlet pipe 3, a water outlet pipe 4, a water pump 5, a throat pipe 6 and an air inlet pipe 7.
The solar cell panel 2 is arranged above the box body 1 and used for converting solar energy into electric energy;
the box body 1 is divided into an upper layer and a lower layer, a storage battery 1-1 is fixed on the upper layer, and the storage battery 1-1 is electrically connected with a solar panel 2 and used for storing electric energy generated by the solar panel 2 when the box body is illuminated and releasing the electric energy when needed; the lower layer is a closed cavity 1-2, and due to the existence of the cavity 1-2, the box body 1 becomes a floating box body in water and can float on the water surface;
the water inlet pipe 3 and the water outlet pipe 4 are respectively connected with the lower ends of the two sides of the cavity 1-2, the top end of the water inlet pipe 3 is positioned inside the cavity 1-2, and the water inlet pipe 3 vertically extends downwards to enable the bottom end of the water inlet pipe 3 to be positioned outside the cavity 1-2 (when the device is placed in water, the bottom end of the water inlet pipe 3 is positioned in the water body below the box body 1); the top end of the water outlet pipe 4 is positioned inside the cavity 1-2, and the water outlet pipe 4 vertically extends downwards so that the bottom end of the water outlet pipe 4 is positioned outside the cavity 1-2 (when the device is placed in water, the bottom end of the water outlet pipe 4 is positioned in the water body below the box body 1);
the interior of the water inlet pipe 3 and the interior of the water outlet pipe 4 are both filled with activated carbon fiber fillers 8; the activated carbon fiber filler 8 positioned at the bottom end of the water inlet pipe 3 is electrically connected with the anode of the storage battery 1-1 through a first lead 9, the activated carbon fiber filler 8 positioned at the bottom end of the water outlet pipe 4 is electrically connected with the current controller 11 through a second lead 10, the current controller 11 is electrically connected with the cathode of the storage battery 1-1 through a third lead 12, the activated carbon fiber filler 8 positioned at the top end of the water inlet pipe 3 is connected with the activated carbon fiber filler 8 positioned at the top end of the water outlet pipe 4 through a fourth lead 13, so that the whole circuit is communicated to form a current loop;
the water inlet of the water pump 5 is connected with the top end of the water inlet pipe 3, the water pump 5 is powered by the storage battery 1-1, and the water pump 5 is electrically connected with the storage battery 1-1;
the water outlet of the water pump 5 and the top end of the water outlet pipe 4 are communicated with the inside of the cavity 1-2 through the throat pipe 6, the throat pipe 6 sequentially comprises an inlet section, a contraction section, a throat part, a diffusion section and an outlet section, the inlet section of the throat pipe 6 is connected with the water outlet of the water pump 5, the outlet section of the throat pipe 6 is connected with the top end of the water outlet pipe 4, the throat part of the throat pipe 6 is communicated with the air inlet pipe 7 which is vertically upward, the air inlet pipe 7 penetrates through the box body 1, and the top end of the air inlet pipe 7 extends out of the.
In the above-mentioned embodiment of the electro-stimulation microbial ecological restoration device of the present invention, the outer surface of the tank body 1 may be coated with a waterproof coating, so that even if the device is put into a river water body for a long time for use, no water penetrates into the tank body 1.
In the above-described embodiments of the electro-stimulating microbial ecological restoration apparatus according to the present invention, the case 1 may be provided in various shapes that facilitate processing, for example, a rectangular parallelepiped shape as shown in fig. 1.
In the embodiment of the electro-stimulation microbial ecological restoration device, the current controller 11 controls the micro-current flowing through the current loop to be 5-20 mA. The test shows that: under the stimulation of the micro-current in the range, the number of the aerobic microorganisms is remarkably increased, which shows that the micro-current can stimulate the accelerated growth of the aerobic microorganisms.
In the specific embodiment of the electro-stimulation microbial ecological restoration device, the diameter of the water inlet pipe 3 is preferably 10-15 times that of the air inlet pipe 7, the diameter of the water outlet pipe 4 is 10-15 times that of the air inlet pipe 7, and the jet effect is better.
In the specific embodiment of the electro-stimulation microbial ecological restoration device, the water inlet pipe 3 and the water outlet pipe 4 are both made of PE pipes, so that the cost is low and the electro-stimulation microbial ecological restoration device is not easy to corrode.
In the specific embodiment of the electro-stimulation microbial ecological restoration device, the volume of the cavity 1-2 is 10-20 times of that of the storage battery 1-1, so that the floating state can be better kept on the water surface.
In the above-mentioned embodiment of the electro-stimulation microbial ecological restoration device of the present invention, the activated carbon fiber filler 8 may be activated carbon fiber, the external diameter is 5 to 20 micrometers, the volume of the micropores with pore widths distributed between 0.5 to 1.5nm accounts for more than 90% of the total pore volume, and the specific surface area is 800 to 1500m2(ii) in terms of/g. The activated carbon fiber is a commercial product. The activated carbon fiber is more beneficial to the attachment and growth of microorganisms.
In the above-mentioned embodiment of the electro-stimulation microbial ecological restoration device of the present invention, the solar cell panel 2 and the top of the box body 1 may be connected in various ways, for example, the solar cell panel 2 may be fixed on the top of the box body 1 by the cooperation of nuts and bolts.
The using method and the working principle of the electrical stimulation microbial ecological restoration device in the embodiment are as follows:
after the electrical stimulation microbial ecological restoration device in the embodiment is thrown into a river channel, the whole device can float on the water surface due to the existence of the cavities 1-2. The top of the box body 1 floats above the water surface, so the solar panel 2 arranged on the top of the box body 1 is above the water surface, the solar panel 2 converts solar energy into electric energy under the illumination of the sun, the generated electric power is stored in the storage battery 1-1, and the storage battery 1-1 supplies power to a current loop formed by the activated carbon fiber filler 8 and the water pump 5.
The activated carbon fiber filler 8 in the water inlet pipe 3 and the water outlet pipe 4 is positioned in a current loop, and the current controller 11 controls the micro current flowing through the loop to be 5-20 mA.
The water pump 5 is started simultaneously, the riverway water body is pumped in through the water inlet pipe 3 and flows through the activated carbon fiber filler 8, micro-current stimulation promotes the degradation of pollutants on the surface of the activated carbon fiber filler 8 and the growth of aerobic microorganisms, meanwhile, the water body forms jet flow at the outlet of the water pump 5 under the action of the water pump 5, air above the water surface is converged into the jet flow through the air inlet pipe 7 to form oxygenated water body, and then flows out through the water outlet pipe 4 to return to the riverway water body.
In the device, the cavity 1-2 is arranged, so that the device can float on the water surface after being thrown into a river channel, the solar panel 2 arranged above the top of the box body 1 (floating above the water surface) generates electric power under the sunlight, and the electric power storage and power supply functions of the storage battery 1-1 are combined, so that the electric power can be continuously supplied to the water pump 5 and the micro-current loop for a long time, and additional power equipment is not needed; meanwhile, the activated carbon fiber filler 8 arranged in the water inlet pipe 3 and the water outlet pipe 4 is electrically connected with the storage battery 1-1 to form a loop, and the micro-current flowing through the loop is controlled to be 5-20 mA by the current controller 11, so that the micro-current stimulation can promote the degradation of pollutants and the growth of aerobic microorganisms on the surface of the activated carbon fiber filler; in addition, the device is also provided with an oxygenation structure which is matched with each other, river water is pumped into the water inlet pipe 3 through the motion of the water pump 5 and forms jet flow water flow through the water pump 5, so that air above the water surface is converged into the jet flow water through the air inlet pipe 7 to oxygenate the water body, and then flows out through the water outlet pipe 4; when the river water body passes through the water inlet pipe 3 and the water outlet pipe 4, on one hand, under the stimulation of micro-current, pollutant degradation and aerobic microorganism growth occur on the surface of the activated carbon fiber filler 8; on the other hand, the concentration of dissolved oxygen in oxygenated water formed by the air converging jet flow is increased, so that an environment suitable for aerobic degradation is formed, the growth of microorganisms and the degradation of pollutants are further enhanced, the water flows back to the river channel, the pollutants in the river channel water are effectively degraded, and the self-cleaning function of the river channel water is gradually recovered, so that the problem of black and odorous river channel water is solved, and ecological restoration is realized.
Therefore, the device does not need to be provided with a power device, and has the advantages of low operation cost, simple and convenient maintenance and wide application range; the structure design is ingenious, and the water body passing through the water inlet pipe and the water outlet pipe is subjected to micro-current stimulation and oxygenation simultaneously, so that aerobic microorganisms and dissolved oxygen in the water body are continuously increased, the aerobic degradation in the water body is promoted, and the water quality of the water body is improved; the structure is simple, the manufacture is easy, the cost is low, and the device is suitable for popularization and application; small occupation area, mobility, convenient use, low maintenance cost and wide application range.
It will thus be seen that the objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments, and the embodiments may be modified without departing from the principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the claims.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. An electro-stimulating microbial ecological restoration device, comprising:
the storage battery box comprises a box body, a battery box body and a battery, wherein the box body is divided into an upper layer and a lower layer, the upper layer is fixedly provided with a storage battery, and the lower layer is a closed cavity;
the solar cell panel is arranged above the box body and is electrically connected with the storage battery;
the top end of the water inlet pipe is positioned in the cavity, and the water inlet pipe vertically extends downwards to enable the bottom end of the water inlet pipe to be arranged outside the cavity; the top end of the water outlet pipe is positioned in the cavity, and the water outlet pipe vertically extends downwards to enable the bottom end of the water outlet pipe to be positioned outside the cavity; the activated carbon fiber filler positioned at the bottom end of the water outlet pipe is electrically connected with a current controller through a second wire, the current controller is electrically connected with the cathode of the storage battery through a third wire, and the activated carbon fiber filler positioned at the top end of the water inlet pipe and the activated carbon fiber filler positioned at the top end of the water outlet pipe are electrically connected through a fourth wire to form a current loop;
the water pump is electrically connected with the storage battery, and a water inlet of the water pump is connected with the top end of the water inlet pipe;
the throat pipe is used for communicating the water outlet of the water pump with the top end of the water outlet pipe inside the cavity and sequentially comprises an inlet section, a contraction section, a throat part, a diffusion section and an outlet section, the inlet section is connected with the water outlet of the water pump, the outlet section is connected with the top end of the water outlet pipe, a vertically upward air inlet pipe is communicated with the throat part and penetrates through the box body, and the top end of the air inlet pipe extends out of the box body.
2. The electro-stimulated microbial ecological restoration device according to claim 1, wherein an outer surface of the case is coated with a waterproof coating.
3. The electro-stimulating microbial ecological restoration device according to claim 1, wherein the case has a rectangular parallelepiped shape.
4. The electro-stimulation microbial ecological restoration device according to claim 1, wherein the current controller controls the micro-current flowing through the current loop to be 5 to 20 mA.
5. The electro-stimulation microbial ecological restoration device as claimed in claim 1, wherein the diameter of the water inlet pipe is 10-15 times of the diameter of the air inlet pipe, and the diameter of the water outlet pipe is 10-15 times of the diameter of the air inlet pipe.
6. The electro-stimulation microbial ecological restoration device according to claim 1, wherein the activated carbon fiber filler has an outer diameter of 5 to 20 μm, a pore volume of which pore widths are distributed between 0.5 to 1.5nm accounts for 90% or more of the total pore volume, and a specific surface area of 800 to 1500m2/g。
7. The electro-stimulation microbial ecological restoration device according to claim 1, wherein the water inlet pipe and the water outlet pipe are both made of PE pipes.
8. The electro-stimulation microbial ecological restoration device according to claim 1, wherein the volume of the cavity is 10 to 20 times of the volume of the storage battery.
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