CN108147528B - An electrical stimulation microbial ecological restoration device - Google Patents

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

An electrical stimulation microbial ecological restoration device

technical field

The invention belongs to the technical field of sewage treatment in environmental protection, and in particular relates to an electric stimulation microbial ecological restoration device.

Background technique

With the rapid development of my country's economy and industry, my country's water environment problems have become increasingly prominent, and urban and rural river pollution is a complex and thorny environmental problem that cannot be ignored. Due to river pollution and serious ecosystem degradation, the water quality of many river courses is in Class V water quality (moderately polluted) and inferior to Class V water quality (severe pollution), manifesting as water eutrophication, water hypoxia, and black and odorous water.

Black and odorous water, as the name suggests, refers to the turbid or even black water color, and emits a pungent odor, causing people to feel sick. It is often seen in organically polluted urban inland rivers, part of eutrophic lakes, and parts of waters and reservoirs. deep body of water. According to relevant statistical data, when the dissolved oxygen concentration in the water environment DO≥2mg/L, the water body is dominated by aerobic microorganisms, which mainly undergo aerobic degradation, and the carbon, nitrogen and sulfur in the organic matter are decomposed into carbon dioxide and nitrate. and sulfate, etc.; when the dissolved oxygen concentration in the water environment DO≤0.2mg/L, the anaerobic microorganisms in the water body dominate, mainly use anaerobic fermentation to degrade pollutants, and the carbon, nitrogen and sulfur components in the organic matter are anaerobic Decomposed into CH ₄ , NH ₃ -N, H ₂ S and other substances. In the anaerobic environment of water body, organic matter decomposes H ₂ S anaerobic, and continuously ionizes HS ^- and S ^2- in the water body, and chemically reacts with a small amount of Fe ²⁺ , H ⁺ and so on originally existing in the water body, and H ₂ The solubility of S and the solubility product of FeS are very small, and it is easy to separate out from the water body to form tiny particles mainly FeS suspended in the water, causing the water body to turn black; the substances produced by the water body escape into the air, and the main component is CH _4. NH ₃ and H ₂ S, etc., form the source of odor.

In the ecological restoration of water environment, microorganisms are the main decomposers of water pollutants. Microbial ecological restoration is a commonly used technical means in water body restoration. One of the most critical conditions for microbial ecological restoration is to ensure that there is enough dissolved oxygen in the water body. Usually, artificial aeration and oxygenation are used to supplement the dissolved oxygen in the river water. At present, the commonly used methods of channel aeration include water drop aeration, aerators, blowers combined with aeration pipes and other measures. Water drop aeration has no power energy requirement, but it has high requirements on the terrain and must have sufficient height difference; aeration The aeration effect is good if the blower and the blower are combined with the aeration pipe, but they all require additional power, and the long-term operation increases the operating cost and maintenance cost. Another important condition for microbial ecological restoration is to ensure that there are enough aerobic microorganisms in the water body. Usually, aerobic microorganisms are propagated by putting strains into the water body. However, a certain strain is mostly targeted at a specific type of microorganisms and cannot comprehensively promote the growth and reproduction of microorganisms.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide an electric-stimulated microbial ecological restoration device, which simultaneously conducts micro-current stimulation and oxygenation to the water body, realizes the continuous increase of aerobic microorganisms and dissolved oxygen in the water body of the river, and promotes the improvement of the water body in a short time. The occurrence of aerobic degradation in the water body improves the water quality.

To achieve the above object, the present invention adopts the following technical solutions:

An electrical stimulation microbial ecological restoration device, comprising:

a box body, the box body is divided into an upper layer and a lower layer, the upper layer is fixed with a battery, and the lower layer is a closed cavity;

a solar cell panel, the solar cell panel is arranged above the box, and the solar cell panel is electrically connected to the battery;

a water inlet pipe and a water outlet pipe, the top end of the water inlet pipe is located inside the cavity, the water inlet pipe extends vertically downward so that the bottom end of the water inlet pipe is placed outside the cavity; the top end of the water outlet pipe Located inside the cavity, the water outlet pipe extends vertically downward so that the bottom end of the water outlet pipe is placed outside the cavity; the interior of the water inlet pipe and the water outlet pipe are filled with activated carbon fiber fillers, located in the The activated carbon fiber filler at the bottom end of the water inlet pipe is electrically connected to the positive electrode of the battery through a first wire, and the activated carbon fiber filler at the bottom end of the water outlet pipe is electrically connected to the current controller through a second wire, and the current controller is connected to the current controller. The negative electrode of the battery is electrically connected through a third wire, and the activated carbon fiber filler at the top of the water inlet pipe and the activated carbon fiber filler at the top of the water outlet pipe are electrically connected through a fourth wire to form a current loop;

a water pump, the water pump is electrically connected to the battery, and the water inlet of the water pump is connected to the top of the water inlet pipe;

A throat pipe, which communicates the water outlet of the water pump with the top of the water outlet pipe inside the cavity, and the throat pipe sequentially includes an inlet section, a constricted section, a throat, a diffuser 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, and the throat is connected with a vertically upward air inlet pipe, and the air inlet pipe runs through the box body And the top end of the air intake pipe extends out of the box.

In a preferred technical solution, 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 also be prevented from penetrating into the inside of the box body.

In a preferred technical solution, the box body is in the shape of a rectangular parallelepiped.

In a preferred technical solution, the current controller controls the micro-current flowing through the current loop to be 5-20 mA, which significantly promotes the growth of microorganisms.

In a preferred technical solution, the diameter of the water inlet pipe is 10-15 times the diameter of the air inlet pipe, and the diameter of the water outlet pipe is 10-15 times the diameter of the air inlet pipe, which has better jet effect. .

In a preferred technical solution, PE pipes (polyethylene plastic pipes) are used for the water inlet pipe and the water outlet pipe, which is low in cost and not easily corroded.

In a preferred technical solution, the volume of the cavity is 10-20 times the volume of the battery, and the floating effect is better.

In a preferred technical solution, the outer diameter of the activated carbon fiber is 5-20 microns, the volume of micropores with a 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 m ² /g, It is more conducive to the attachment and growth of microorganisms.

In the present invention, the whole device is provided with a cavity part, so that the device can float on the water surface after being put into the river, and the solar panel arranged above the top of the box (floating above the water surface) generates electricity under sunlight. , and combined with the power storage and power supply functions of the battery, it can continuously provide power to the water pump and the micro-current circuit for a long time, so that no additional power equipment is required. Among them, the micro-current circuit is composed of activated carbon fiber filler installed in the water inlet pipe and the water outlet pipe and the battery is electrically connected, and the current flowing through the circuit is controlled by the current controller to be a micro current of 5-20 mA, and the micro current stimulation can promote the activation of activated carbon. Degradation of pollutants and growth of aerobic microorganisms occur on the surface of the fiber filler; at the same time, through the movement of the water pump, the river water is pumped into the water inlet pipe, and the water jet is formed after the water pump, and the air above the water surface is merged into the inflow water flow through the air inlet pipe to form oxygenation The water body flows out through the outlet pipe and returns to the river water body. When the river water body passes through the inlet and outlet pipes, on the one hand, under the stimulation of micro-current, pollutant degradation and aerobic microbial growth occur on the surface of the activated carbon fiber filler; The dissolved oxygen concentration in the water body increases, forming an environment suitable for aerobic degradation, further promoting the growth of microorganisms and the degradation of pollutants. The water body flows back into the river channel, the pollutants in the river channel water body can be effectively degraded, and the self-purification function of the river channel water body is gradually restored. Solve the problem of black and odorous water in rivers and realize ecological restoration.

Compared with the prior art, the present invention has the following beneficial technical effects:

1) The device of the present invention utilizes solar energy to supply power, does not need to be equipped with a power device, has low operating cost, is easy to maintain, and has a wide range of applications;

2) Through ingenious structural design, the device of the present invention can simultaneously conduct micro-current stimulation and oxygenation to the water body passing through the water inlet pipe and the water outlet pipe, so as to realize the continuous increase of aerobic microorganisms and dissolved oxygen in the water body, and promote the water body in a short time. The occurrence of aerobic degradation in the water body improves the water quality.

3) The device of the present invention is simple in structure, easy to manufacture, low in cost, and suitable for popularization and application;

4) The device of the present invention occupies a small area, can be moved, is convenient to use, has low maintenance cost, and has a wide range of applications.

These and other objects, features and advantages of the present invention will be fully embodied by the following detailed description, appended drawings and claims, and may be realized by means of the instrumentalities, means and combinations particularly pointed out in the appended claims.

Description of drawings

FIG. 1 is a schematic structural diagram of a specific embodiment of the electrical stimulation microbial ecological restoration device of the present invention.

Detailed ways

Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings, so as to understand the technical content of the present invention more clearly.

As shown in FIG. 1 , in a specific embodiment of the present invention, an electro-stimulated microbial ecological restoration device includes: a box 1, a solar panel 2, a water inlet pipe 3 and a water outlet pipe 4, a water pump 5, a throat pipe 6 and Intake pipe 7.

The solar panel 2 is arranged above the box body 1 for converting solar energy into electrical energy;

The box 1 is divided into an upper layer and a lower layer. The upper layer is fixed with a battery 1-1. The battery 1-1 is electrically connected to the solar panel 2 for storing the electric energy generated by the solar panel 2 when there is light and when needed. The lower layer is a closed cavity 1-2. Due to the existence of the cavity 1-2, the box 1 becomes a floating box in water and can float on the water surface;

The water inlet pipe 3 and the water outlet pipe 4 are respectively connected to the lower ends of both sides of the cavity 1-2, the top of the water inlet pipe 3 is located inside the cavity 1-2, and the water inlet pipe 3 extends vertically downward so that its bottom end is placed in the cavity The outside of 1-2 (the bottom end of the water inlet pipe 3 is located in the water body below the box 1 when the device is placed in water); the top end of the water outlet pipe 4 is located inside the cavity 1-2, and the water outlet pipe 4 extends vertically downward so that the Its bottom end is placed outside the cavity 1-2 (the bottom end of the water outlet pipe 4 is located in the water body below the box 1 when the device is placed in water);

The inside of the water inlet pipe 3 and the water outlet pipe 4 are filled with activated carbon fiber filler 8; The activated carbon fiber filler 8 is electrically connected to the current controller 11 through the second wire 10, and the current controller 11 is electrically connected to the negative electrode of the battery 1-1 through the third wire 12. The activated carbon fiber filler 8 at the top of the water inlet pipe 3 and the The activated carbon fiber filler 8 at the top of the water pipe 4 is connected through the fourth wire 13, so that the entire circuit is connected to form a current loop;

The water inlet of the water pump 5 is connected with the top of the water inlet pipe 3, the water pump 5 is powered by the battery 1-1, and the water pump 5 is electrically connected with the battery 1-1;

The throat 6 communicates the water outlet of the water pump 5 with the top of the water outlet pipe 4 in the interior of the cavity 1-2. The throat 6 includes an inlet section, a constriction section, a throat, a diffusion section and an outlet section in turn. The inlet of the throat 6 The section is connected with the water outlet of the water pump 5, the outlet section of the throat pipe 6 is connected with the top of the water outlet pipe 4, the throat of the throat pipe 6 is connected with a vertically upward air intake pipe 7, and the intake pipe 7 runs through the box body 1 and enters the The top end of the air pipe 7 extends outside the casing 1 .

In the specific embodiment of the above-mentioned electric stimulation microbial ecological restoration device of the present invention, the outer surface of the box body 1 can be coated with a waterproof coating, so that even if the device is used in a river water body for a long time, there will be no water penetration. Inside the box 1.

In the above-mentioned specific embodiment of the electrical stimulation microbial ecological restoration device of the present invention, the box body 1 can be set in various shapes that are convenient for processing, such as a rectangular parallelepiped shape as shown in FIG. 1 .

In the specific embodiment of the above-mentioned electrical stimulation microbial ecological restoration device of the present invention, the current controller 11 controls the micro-current flowing through the above-mentioned current loop to be 5-20 mA. Experiments showed that the number of aerobic microorganisms increased significantly under the stimulation of microcurrent in this range, indicating that microcurrent can stimulate the accelerated growth of aerobic microorganisms.

In the specific embodiment of the above-mentioned electrical stimulation microbial ecological restoration device of the present invention, it is preferable to set the diameter of the water inlet pipe 3 to be 10 to 15 times the diameter of the air inlet pipe 7, and the diameter of the water outlet pipe 4 to be 10 to 15 times the diameter of the air inlet pipe 7. times, the jet effect is better.

In the above-mentioned specific embodiment of the electrical stimulation microbial ecological restoration device of the present invention, the water inlet pipe 3 and the water outlet pipe 4 are made of PE pipes, which are low in cost and are not easily corroded.

In the above-mentioned specific embodiment of the electrical stimulation microbial ecological restoration device of the present invention, the volume of the cavity 1-2 is 10-20 times the volume of the battery 1-1, so as to better maintain a floating state on the water surface.

In the specific embodiment of the above-mentioned electro-stimulated microbial ecological restoration device of the present invention, the activated carbon fiber filler 8 can be activated carbon fiber, the outer diameter is 5-20 microns, and the volume of micropores with a pore width distributed between 0.5-1.5 nm accounts for the total pore volume. More than 90% of the surface area is 800～1500m ² /g. The activated carbon fiber is a commercially available product. Using the activated carbon fiber is more conducive to the attachment and growth of microorganisms.

In the above-mentioned specific embodiment of the electrical stimulation microbial ecological restoration device of the present invention, the solar panel 2 and the top of the box 1 can be connected in various ways, for example, the solar panel 2 can be fixed on the box through the cooperation of nuts and bolts. 1 top.

The use method and working principle of the electrical stimulation microbial ecological restoration device in the above embodiment are as follows:

After the electro-stimulated microbial ecological restoration device in the above embodiment is put into the river, the whole device can float on the water surface due to the existence of the cavity 1-2. Since the top of the box body 1 floats above the water surface, the solar panel 2 located on the top of the box body 1 is also above the water surface. Under the sunlight, the solar battery panel 2 converts the solar energy into electrical energy, and the generated electricity is stored in the battery 1-1 In the middle, the battery 1-1 supplies power to the current loop formed by the activated carbon fiber filler 8 and the water pump 5.

The activated carbon fiber fillers 8 in the water inlet pipe 3 and the water outlet pipe 4 are in a current loop, and the current controller 11 controls the current flowing through the loop to be a microcurrent of 5-20 mA.

The water pump 5 is started at the same time, and the water body of the river is drawn into and flows through the activated carbon fiber filler 8 through the water inlet pipe 3. The micro-current stimulation promotes the degradation of pollutants and the growth of aerobic microorganisms on the surface of the activated carbon fiber filler 8. At the same time, the water body plays the role of the water pump 5. A jet water flow is formed at the outlet of the water pump 5, and the air above the water surface joins the jet water flow through the air inlet pipe 7 to form an oxygenated water body, and then flows out through the water outlet pipe 4 and returns to the river water body.

The water pump 5 runs continuously. Under the stimulation of micro-current, the degradation of pollutants and the growth of aerobic microorganisms continue to occur on the surface of the activated carbon fiber filler 8, and the dissolved oxygen concentration in the oxygenated water body is increased as the air joins the jet stream, and the activated carbon fiber filler increases. 8 The degradation of pollutants on the surface and the growth of aerobic microorganisms are further strengthened, so that the pollutants in the water flowing back to the river can be effectively degraded, and the self-purification function of the river water is gradually restored, thereby solving the black and odor problem of the river water and realizing ecological restoration.

In the above device, due to the cavity 1-2 part, the device can float on the water surface after being put into the river, and is illuminated by the solar panel 2 arranged above the top of the box 1 (floating above the water surface). It can generate electricity under the hood, and combined with the electricity storage and power supply functions of the battery 1-1, it can continuously provide electricity to the water pump 5 and the micro-current circuit for a long time, so that no additional power equipment is required; at the same time, the device will also be installed in the water inlet pipe 3 and The activated carbon fiber filler 8 in the water outlet pipe 4 is electrically connected to the battery 1-1 to form a loop, and the current flowing through the loop is controlled by the current controller 11 to be a microcurrent of 5-20 mA, and the microcurrent stimulation can promote the surface of the activated carbon fiber filler. Degradation of pollutants and growth of aerobic microorganisms occur; in addition, the device is also designed with an oxygenating structure that cooperates with each other. Through the movement of the water pump 5, the river water is pumped into the water inlet pipe 3 and the water jet is formed after the water pump 5, so that the water surface is above the water surface. The air is oxygenated into the water flow through the inlet pipe 7, and then flows out through the water outlet pipe 4; because the river water body passes through the water inlet pipe 3 and the water outlet pipe 4, on the one hand, under the stimulation of the microcurrent, the activated carbon fibers Degradation of pollutants and growth of aerobic microorganisms occur on the surface of filler 8; on the other hand, the concentration of dissolved oxygen in the oxygenated water body formed by the confluence of air flowing into the jet stream increases, forming an environment suitable for aerobic degradation, which further strengthens the promotion of microbial growth and pollutants. Degradation, the water body flows back into the river, the pollutants in the river water can be effectively degraded, and the self-purification function of the river water is gradually restored, thereby solving the black and odor problem of the river water and realizing ecological restoration.

It can be seen that the above device does not need to be equipped with a power device, the operation cost is low, the maintenance is simple, and the application range is wide; Microorganisms and dissolved oxygen continue to increase, promote the occurrence of aerobic degradation in the water body, and improve the water quality; simple structure, easy to manufacture, low cost, suitable for popularization and application; small footprint, mobile, convenient use, low maintenance cost, and wide application range .

It can be seen that the purpose of the present invention has been completely and effectively achieved. The functional and structural principles of the present invention have been shown and described in the embodiments, and the embodiments may be arbitrarily modified without departing from the principles. Therefore, the present invention includes all modified embodiments based on the spirit and scope of the claims.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be 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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