Rapid purification process for black and odorous water body through cooperation of micro-nano bubble ultraviolet rays and hydroxylation

Abstract

The invention relates to the technical field of water treatment, in particular to a rapid purification process for black and odorous water through cooperation of micro-nano bubble ultraviolet rays and hydroxylation. A filter is put into a black and odorous pond, the output end of the filter is communicated with the input end of a self-suction tank, and then the output end of the self-suction tank is communicated with the input end of a lifting pump; the output end of the lifting pump is communicated with a plasma device, the liquid output end of the plasma device is communicated with another lifting pump, the output end of the lifting pump is communicated with a venturi tube, the other end of the venturi tube is communicated with a microbubble generator, and the output end of the microbubble generator is discharged into the black and odorous pond; the equipment is convenient to carry, when black and odorous water is treated, strong oxidizing ions are generated through the equipment, COD degraded in water is decomposed into easily-degraded small-molecular organic matters, escherichia coli can be quickly killed, algae can be quickly killed, the problem of pond stinking can be solved only in 1-7 days generally, a large amount of manpower and material resources are not needed, sludge does not need to be removed, and the equipment is convenient to use. And no secondary pollution exists.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, and specifically to a rapid purification process for black and smelly water bodies by coordinated hydroxylation of micro-nano bubbles and ultraviolet rays. Background Art

[0002] Black and smelly water bodies and dead ponds contain a large amount of organic matter, green algae, etc., which become black and smelly due to anaerobic fermentation of organic matter caused by lack of oxygen. The water contains a large amount of difficult-to-degrade COD pollution. The proliferation of algae leads to lack of oxygen in the water body, and the odor is caused by anaerobic fermentation. At present, there is no perfect treatment process for black and smelly water bodies. Generally, the sludge is removed and the dirty water is drained. The workload is huge. The excavated sludge is accumulated nearby and there is no treatment method. The drained dirty water also flows naturally on the ground nearby, dries or seeps into the ground, and the odor is released into the atmosphere, causing air pollution. Therefore, in response to the above problems, a micro-nano bubble ultraviolet ray synergistic hydroxylation black and smelly water rapid purification process is proposed. Summary of the invention

[0003] The purpose of the present invention is to provide a rapid purification process for black and odorous water by using micro-nano bubbles, ultraviolet rays and hydroxylation to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] As an optional scheme of the black and odorous water rapid purification process of the micro-nano bubble ultraviolet ray synergistic hydroxylation of the present invention, wherein: the black and odorous water rapid purification process of the micro-nano bubble ultraviolet ray synergistic hydroxylation, the water purification process comprises the following steps:

[0006] Step 1: Equipment transportation: First, transport the filter, self-priming tank, two lifting pumps, plasma device, venturi tube, microbubble generator and ultraviolet sterilizer to the shore of the black and smelly pond;

[0007] Step 2: Equipment installation: Place the filter into the black and smelly pond, and the output end of the filter is connected to the input end of the self-priming tank, and then the output end of the self-priming tank is connected to the input end of the lift pump, the output end of the lift pump is connected to a plasma device, the liquid output end of the plasma device is connected to another lift pump, the output end of the lift pump is connected to a venturi tube, the other end of the venturi tube is connected to a micro-bubble generator, and the output end of the micro-bubble generator is discharged into the black and smelly pond;

[0008] Step 3: Branch installation: A branch pipe is installed on the pipeline between the first lift pump and the plasma device, and the other end of the branch pipe is connected to the pipeline between the venturi tube and the microbubble generator;

[0009] Step 4: Gas delivery: A gas pipe is also installed on the outside of the plasma device, and the other end of the gas pipe is connected to the venturi tube.

[0010] As an optional scheme for the black and odorous water rapid purification process using micro-nano bubbles and ultraviolet rays in coordination with hydroxylation of the present invention, the outside of the microbubble generator is also connected to an ultraviolet sterilizer.

[0011] As an optional scheme for the black and odorous water rapid purification process using micro-nano bubbles and ultraviolet rays in coordination with hydroxylation of the present invention, a one-way valve is installed on the outside of the branch pipe.

[0012] Black and smelly water bodies, dead ponds, contain a large amount of organic matter, green algae, etc., which become black and smelly due to anaerobic fermentation of organic matter caused by lack of oxygen. The water contains a large amount of COD pollution that is difficult to degrade. The proliferation of algae causes lack of oxygen in the water body, and the odor is caused by anaerobic fermentation. At present, there is no perfect treatment process for black and smelly water bodies. Generally, the sludge is removed and the dirty water is drained. The engineering workload is huge. The excavated sludge is piled up nearby and there is no treatment method. The drained dirty water also flows naturally on the ground nearby, dries or seeps into the ground, and the odor is released into the atmosphere, causing air pollution. The low COD pond water that is lacking oxygen and smells due to the proliferation of algae passes through the filter, and at this time, the relatively large Large impurities, such as plant branches and leaves, prevent the water pump from being blocked. The water enters the self-priming tank. The self-priming tank is filled with water. The water level drops and negative pressure is generated in the tank, causing the pond water to enter the self-priming tank. The lifting pump draws water from the negative pressure tank to provide power for the subsequent microbubble generator. At the same time, the air passes through the ultraviolet sterilizer. The air is ionized by ultraviolet rays to produce ozone. The air with ozone is sucked into the fusion area by the negative pressure of the microbubble generator and mixed and dissolved with water. Ozone dissolves in water to generate hydrogen peroxide. Hydrogen peroxide is ionized in water to generate -OH. -OH has super oxidizing properties and can decompose COD in water, kill bacteria and algae, and curb anaerobic fermentation to produce odor.

[0013] As an optional scheme for the micro-nano bubble ultraviolet ray synergistic hydroxylation black and odorous water rapid purification process described in the present invention, the plasma device generates hydroxide ions, chloride ions and oxygen ions under the action of the electric field and discharges them into the venturi.

[0014] As an optional scheme for the micro-nano bubble ultraviolet synergistic hydroxylation black and odorous water rapid purification process described in the present invention, the micro-bubble generator includes a rectification zone, an acceleration zone, a negative pressure fusion zone and a diffusion turbulence zone.

[0015] As an optional scheme for the micro-nano bubble ultraviolet synergistic hydroxylation black and odorous water rapid purification process of the present invention, the size of the microbubbles generated by the microbubble generator is between 30-50 μm.

[0016] Pressurized water enters the microbubble generator under the action of the water pump, and passes through the rectification area, acceleration area, negative pressure fusion area, and diffusion turbulence area. The air is divided into 30-50μm bubbles and flows into the pond. At the same time, the microbubbles 30-50μm have a large specific surface area, which can absorb a large number of ions in the water. When the microbubbles burst, a large amount of explosive energy can be generated. These energies will cause a large amount of -OH to be produced in the water, which will be used for subsequent odorous water treatment.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The device of the present invention is easy to carry. When treating black and smelly water bodies, strong oxidizing ions are generated by the device to decompose the COD degraded in the water into easily degradable small molecular organic matter, which can quickly kill Escherichia coli and algae. Generally, it only takes 1-7 days to solve the problem of pond odor. The operation is simple, does not require a lot of manpower and material resources, is low in cost, does not require sludge removal, and does not cause secondary pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a flow chart of the rapid purification process of black and odorous water using micro-nano bubble ultraviolet light synergistic hydroxylation. DETAILED DESCRIPTION

[0020] Example 1: Please refer to Figure 1 , the present invention provides a technical solution:

[0021] A rapid purification process for black and odorous water by using micro-nano bubble ultraviolet rays in coordination with hydroxylation, the water purification process comprising the following steps:

[0022] Step 1: Equipment transportation: First, transport the filter, self-priming tank, two lifting pumps, plasma device, venturi tube, microbubble generator and ultraviolet sterilizer to the shore of the black and smelly pond;

[0023] Step 2: Equipment installation: Place the filter into the black and smelly pond, and the output end of the filter is connected to the input end of the self-priming tank, and then the output end of the self-priming tank is connected to the input end of the lift pump, the output end of the lift pump is connected to a plasma device, the liquid output end of the plasma device is connected to another lift pump, the output end of the lift pump is connected to a venturi tube, the other end of the venturi tube is connected to a micro-bubble generator, and the output end of the micro-bubble generator is discharged into the black and smelly pond;

[0024] Step 3: Branch installation: A branch pipe is installed on the pipeline between the first lift pump and the plasma device, and the other end of the branch pipe is connected to the pipeline between the venturi tube and the microbubble generator;

[0025] Step 4: Gas delivery: A gas pipe is also installed on the outside of the plasma device, and the other end of the gas pipe is connected to the venturi tube.

[0026] The outside of the microbubble generator is also connected to an ultraviolet sterilizer.

[0027] A one-way valve is installed on the outside of the branch pipe.

[0028] Black and smelly water bodies, dead ponds, contain a large amount of organic matter, green algae, etc., which become black and smelly due to anaerobic fermentation of organic matter caused by lack of oxygen. The water contains a large amount of COD pollution that is difficult to degrade. The proliferation of algae causes lack of oxygen in the water body, and the odor is caused by anaerobic fermentation. At present, there is no perfect treatment process for black and smelly water bodies. Generally, the sludge is removed and the dirty water is drained. The engineering workload is huge. The excavated sludge is piled up nearby and there is no treatment method. The drained dirty water also flows naturally on the ground nearby, dries or seeps into the ground, and the odor is released into the atmosphere, causing air pollution. The low COD pond water that is lacking oxygen and smells due to the proliferation of algae passes through the filter, and at this time, the relatively large Large impurities, such as plant branches and leaves, prevent the water pump from being blocked. The water enters the self-priming tank. The self-priming tank is filled with water. The water level drops and negative pressure is generated in the tank, causing the pond water to enter the self-priming tank. The lifting pump extracts the water in the negative pressure tank to provide power for the subsequent micro-bubble generator. At the same time, the air passes through the ultraviolet sterilizer. The air is ionized under the action of ultraviolet rays to produce ozone. The air with ozone is sucked into the fusion area by the negative pressure of the micro-bubble generator and mixed and dissolved with water. Ozone dissolves in water to generate hydrogen peroxide. Hydrogen peroxide is ionized in water to generate -OH. -OH has super oxidizing properties and can decompose COD in water, kill bacteria and algae, and curb anaerobic fermentation to produce odor.

[0029] In this embodiment, the black and smelly water body that is continuously polluted by garbage leachate, livestock feces, etc., contains extremely high COD that is difficult to degrade. Plasma advanced oxidation is carried out under the action of the plasma device. Strong oxidizing ions such as hydroxide, chlorine, and chlorine dioxide are generated under the action of the electric field to decompose the difficult-to-degrade COD in the water into small molecular organic matter that is easy to degrade, kill Escherichia coli within tens of seconds, and kill algae in about one minute. The oxygen, chlorine, chlorine dioxide and other oxidizing gases generated by the anode are collected and sucked into the water body through the venturi tube to further oxidize COD and increase the oxygen content of the water body to inhibit anaerobic fermentation. Then the pump is used to lift and pressurize it to the microbubble generator for oxygenation and flow into the pond.

[0030] Example 2: This example is an improvement on Example 1. Figure 1 Specifically, the plasma device generates hydroxide ions, chloride ions, and oxygen ions under the action of an electric field and discharges them into the venturi tube.

[0031] The microbubble generator includes a rectifying area, an accelerating area, a negative pressure fusion area and a diffusion turbulence area.

[0032] The size of the microbubbles generated by the microbubble generator is between 30-50 μm.

[0033] Pressurized water enters the microbubble generator under the action of the water pump, and passes through the rectification area, acceleration area, negative pressure fusion area, and diffusion turbulence area. The air is divided into 30-50μm bubbles and flows into the pond. At the same time, the microbubbles 30-50μm have a large specific surface area, which can absorb a large number of ions in the water. When the microbubbles burst, a large amount of explosive energy can be generated. These energies will cause a large amount of -OH to be produced in the water, which will be used for subsequent odorous water treatment.

[0034] The present invention has the following advantages: a micro-bubble generator with a super-large air-to-liquid ratio, a large amount of air inhaled, a multi-level right-angle turbulence cutting bubble with a larger number and a smaller diameter, a larger explosion energy when bursting, and a larger amount of -OH produced;

[0035] Introducing ultraviolet rays to ionize the air, sterilizing the air and producing ozone, which dissolves in water to produce -OH, further increasing the -OH concentration;

[0036] The equipment is skid-mounted, easy to move, simple in structure and easy to operate. One device can easily treat several water areas, reducing investment costs;

[0037] The sterilization and algae-killing effect is remarkable, no other agents need to be added, no other by-products are produced, and no secondary pollution occurs;

[0038] The oxidizing gases such as oxygen, chlorine, chlorine dioxide, etc. produced by the plasma anode are reused to avoid secondary pollution.

[0039] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. Micro-nano bubble ultraviolet light synergistic hydroxylation black and odorous water rapid purification process, characterized by: The water purification process comprises the following steps: Step 1: Equipment transportation: First, transport the filter, self-priming tank, two lifting pumps, plasma device, venturi tube, microbubble generator and ultraviolet sterilizer to the shore of the black and smelly pond; Step 2: Equipment installation: Place the filter into the black and smelly pond, and the output end of the filter is connected to the input end of the self-priming tank, and then the output end of the self-priming tank is connected to the input end of the lift pump, the output end of the lift pump is connected to a plasma device, the liquid output end of the plasma device is connected to another lift pump, the output end of the lift pump is connected to a venturi tube, the other end of the venturi tube is connected to a micro-bubble generator, and the output end of the micro-bubble generator is discharged into the black and smelly pond; Step 3: Branch installation: A branch pipe is installed on the pipeline between the first lift pump and the plasma device, and the other end of the branch pipe is connected to the pipeline between the venturi tube and the microbubble generator; Step 4: Gas delivery: A gas pipe is also installed on the outside of the plasma device, and the other end of the gas pipe is connected to the venturi tube.

2. The micro-nano bubble ultraviolet assisted hydroxylation black and odorous water rapid purification process according to claim 1 is characterized by: The outer side of the microbubble generator is also connected to an ultraviolet sterilizer.

3. The micro-nano bubble ultraviolet assisted hydroxylation black and odorous water rapid purification process according to claim 1 is characterized by: A one-way valve is installed on the outer side of the branch pipe.

4. The micro-nano bubble ultraviolet assisted hydroxylation black and odorous water rapid purification process according to claim 1 is characterized by: The plasma device generates hydroxide ions, chloride ions and oxygen ions under the action of the electric field and discharges them into the venturi.

5. The micro-nano bubble ultraviolet assisted hydroxylation black and odorous water rapid purification process according to claim 1 is characterized by: The microbubble generator includes a rectifying area, an accelerating area, a negative pressure fusion area and a diffusion turbulence area.

6. The micro-nano bubble ultraviolet assisted hydroxylation black and smelly water rapid purification process according to claim 1 is characterized by: The size of the microbubbles generated by the microbubble generator is between 30-50 μm.

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