CN113105085A - In-situ ozone oxidation treatment system for bottom mud and use method - Google Patents
In-situ ozone oxidation treatment system for bottom mud and use method Download PDFInfo
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- CN113105085A CN113105085A CN202110448440.3A CN202110448440A CN113105085A CN 113105085 A CN113105085 A CN 113105085A CN 202110448440 A CN202110448440 A CN 202110448440A CN 113105085 A CN113105085 A CN 113105085A
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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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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- 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
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/782—Ozone generators
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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
- C02F2303/00—Specific treatment goals
- C02F2303/26—Reducing the size of particles, liquid droplets or bubbles, e.g. by crushing, grinding, spraying, creation of microbubbles or nanobubbles
Abstract
The invention discloses a bottom mud in-situ ozone oxidation treatment system and a use method thereof, belonging to the field of water pollution prevention and ecological restoration, and comprising an ozone micro-nano bubble generation system, a slag scraping system and a power supply system; the power supply system is used for providing electric energy for the ozone micro-nano bubble generation system and the slag scraping system; the ozone micro-nano bubble generating system sprays generated ozone micro-nano bubbles into the bottom mud to oxidize and degrade the bottom mud, and scum generated in the oxidizing and degrading process is collected through the scum scraping system. The invention can realize the on-site treatment of river and lake bottom mud polluted by rivers and lakes, reduce the transportation cost, reduce water body pollutants from the source, reduce the subsequent treatment load and reduce the environmental interference caused by dredging.
Description
Technical Field
The invention belongs to the field of water pollution prevention and ecological restoration, and relates to a bottom mud in-situ ozone oxidation treatment system and a use method thereof, which are used for in-situ oxidation reduction of river and lake bottom mud by using in-situ ozone micro-nano bubbles.
Background
The river channel is an ecological venation and a landscape zone of a city, is an important regulator of natural and human-living environments, and is a material input carrier and an outlet of various industries. The river sediment is a gray black sludge which is formed by depositing various substances input into water bodies at the bottom of a river after a series of physical, chemical and biochemical reactions, is loose and rich in organic matters, pollutants and nutrient salts, and when the external input is effectively controlled, the pollution of the sediment can become an important limiting factor influencing the improvement of water quality; on the other hand, since the bottom sediment is the main living place and food source of the benthos, the pollutants in the bottom sediment can have serious influence on the benthos and even threaten the human health through the food chain. The contaminated sediment in the water area is in considerable quantities and is produced continuously, without cleaning, and will spread gradually throughout the water area.
The river sediment treatment is divided into in-situ treatment and ex-situ treatment. During the dystopy is handled, contain a large amount of organic matters in the bed mud, nutrients (nutritive salt such as nitrogen, phosphorus) and some produce the heavy metal of harm to the ecological environment, the pathogenic bacteria, poisonous and harmful such as virus microorganism and toxic organic matter, make silt smelly easily, easily rot, if not handle and directly discharge in place and cause the secondary pollution to the environment easily in piling up the mud field, especially pile up in the arable land and can influence the effect of later stage double cropping, thereby lead to the arable land to rent the degree of difficulty to increase, and need the demand place to stack and deal with, the engineering volume is huge and the cost is high.
Disclosure of Invention
Aiming at the problems, the invention provides the in-situ ozone oxidation treatment device for the sediment and the use method thereof, which can realize in-situ treatment of the sediment polluted by rivers and lakes, reduce the transportation cost, reduce water pollutants from the source, reduce the subsequent treatment load and reduce the environmental interference caused by dredging.
The invention is realized by the following technical scheme:
a bottom mud in-situ ozone oxidation treatment system comprises an ozone micro-nano bubble generation system, a slag scraping system and a power supply system; the power supply system is used for providing electric energy for the ozone micro-nano bubble generation system and the slag scraping system; the ozone micro-nano bubble generating system sprays generated ozone micro-nano bubbles into the bottom mud to oxidize and degrade the bottom mud, and scum generated in the oxidizing and degrading process is collected through the scum scraping system.
Further, the slag scraping system comprises a motor, a scraper plate, a slag collecting groove and a guide cylinder; a bracket is arranged above the guide cylinder, a motor is arranged on the bracket, a scraping plate is arranged at the output end of the motor, and a scraping strip is arranged on the scraping plate; the slag collecting groove is arranged in the guide cylinder and is used for collecting sundries scraped by the scraping strip.
Further, the power supply system comprises a solar panel, an inverter and a circuit line; solar panel is "V" shape and arranges, solar panel and inverter pass through the circuit line intercommunication, the inverter will the direct current that solar panel produced turns into the alternating current.
Further, the ozone micro-nano bubble generation system comprises an ozone generator, a first water inlet pipe, a multi-stage pump, a gas-liquid separation tank and a micro-nano bubble releaser; the first water inlet pipe and the output end of the ozone generator are connected with the input end of the multistage pump through a second tee joint, the output end of the multistage pump is communicated with the input end of the gas-liquid separation tank through a pipeline, and the output end of the gas-liquid separation tank is communicated with the input end of the micro-nano bubble releaser through a pipeline; and the output end of the micro-nano bubble releaser sprays the ozone micro-nano bubbles into the sediment.
Further, the micro-nano bubble releaser inclines downwards at 45-60 degrees and is arranged in a guide cylinder in the slag scraping system.
Furthermore, 80 ~ 100 mesh filter screens are installed to first inlet tube input end portion.
Further, the micro-nano bubble releaser is installed on the return bend, the return bend encircles on the outer wall of draft tube.
Furthermore, the ozone micro-nano bubble generation system is arranged in the box body, the box body and the slag scraping system are both arranged on the floating platform, the box body is arranged on a beam of the floating platform, the floating platform is of a U-shaped structure, and the upper end of the guide cylinder is arranged at an opening of the U-shaped structure; solar panel among the power supply system passes through the support frame to be supported, and the support frame is installed on the floating platform.
The use method of the bottom mud in-situ ozone oxidation treatment system comprises the following steps:
the method comprises the following steps: starting an ozone generator, providing ozone for the multistage pump, adjusting an air inlet valve, and adjusting an air inlet pipe flowmeter to be minimum, wherein the output end of the ozone generator is directly connected with the multistage pump;
step two: starting a multistage pump, continuously sucking pool water through a first water inlet pipe, filtering the pool water by a filter screen, removing impurities in the inlet water, mixing the pool water with ozone, gradually adjusting a flow meter of a gas inlet pipe, ensuring that the negative pressure expression number is-0.01-0 Mpa, forming a primary gas-liquid mixed fluid, and then feeding the primary gas-liquid mixed fluid into a gas-liquid separation tank; specifically, river water is sucked through a first water inlet pipe, an ozone generator generates ozone, the river water and the ozone enter a multistage pump to be subjected to gas-liquid mixing to obtain gas-liquid mixed fluid, and the gas-liquid mixed fluid flows into a gas-liquid separation tank;
step three: starting a gas-liquid separation tank, separating excessive ozone gas insoluble in water, and maintaining the gas-liquid ratio at 1: 10-20, installing a pressure gauge in the gas-liquid separation tank, and maintaining the pressure in the pressure gauge at 0.3-0.4 Mpa;
step four: the treated gas-liquid mixture enters a third water inlet pipe from the output end of the gas-liquid separation tank, descends to a third tee joint, then enters a bent pipe, and enters a micro-nano bubble releaser from a fourth tee joint, so that the treated gas-liquid mixture is contacted with bottom sediment and oxidized.
Has the advantages that:
1. the method can realize the on-site treatment of river and lake bottom mud polluted by rivers and lakes, reduce the transportation cost, reduce water body pollutants from the source, reduce the subsequent treatment load and reduce the environmental interference caused by dredging.
2. The floating platform is arranged, so that the solar energy floating device can float on a water body, the in-situ treatment of bottom mud is realized, and in addition, the solar panel is arranged on the floating platform, the orientation of the floating platform can be controlled through the control system, and more illumination power generation of the solar panel is realized.
3. The filter screen is arranged at the input end of the first water inlet pipe, so that water entering the pipeline can be filtered in advance to remove impurities in the water, the subsequent pipeline is prevented from being blocked, the normal operation of the multistage pump is prevented from being disturbed, and the working efficiency of the multistage pump is improved.
4. Micro-nano bubble releaser downward sloping 45 ~ 60 and place in the draft tube of scraping sediment system in, this angle of setting up makes the micro-nano bubble rivers of ozone that micro-nano bubble releaser released impact the bed mud layer, and the bed mud that raises can be contacted by ozone furthest and oxidized, and the floater that rises simultaneously also can pass through the draft tube smoothly.
Drawings
FIG. 1 is a schematic diagram of an in-situ ozonation treatment system for bottom sludge according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a structure of an ozone micro-nano bubble generating system according to the present invention shown in FIG. 1;
fig. 3 is a schematic structural view of the slag scraping system related to fig. 1 of the invention.
The reference numerals are explained below:
1-a power supply system; 1.1-circuit line; 1.2-solar panel; 1.3-inverter; 2-an ozone micro-nano bubble generation system; 2.1-box body; 2.2-control panel; 2.3-ozone generator; 2.4-air inlet pipe; 2.5-a second tee; 2.6-gas flow meter; 2.7-multistage pump; 2.8-first inlet pipe; 2.9-a first tee; 2.10-a second water inlet pipe; 2.11-gas-liquid separation tank; 2.12-a third water inlet pipe; 2.13-third tee; 2.14-pipe strap; 2.15-bending the tube; 2.16-fourth tee; 2.17-micro-nano bubble releaser; 3-a slag scraping system; 3.1-electric motor; 3.2-scaffold; 3.3-scraper; 3.4-scraping strip; 3.5-slag collecting groove; 3.6-guide shell; 4-a support frame; 5-floating platform.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
With reference to the attached drawing 1, a bottom mud in-situ ozone oxidation treatment system, a power supply system 1 provides driving power for various functional components such as a multistage pump 2.7, a gas-liquid separation tank 2.11, an ozone generator 2.3 and the like, and a floating platform 5 directly bears the power supply system 1; a slag scraping system 3, a power supply system 1 and an ozone micro-nano bubble generating system 2 are arranged on the floating platform 5, and the power supply system 1 is connected with the ozone micro-nano bubble generating system 2 through a circuit line 1.1; under the condition of continuous power supply of the power supply system 1, the multistage pump 2.7 in the ozone micro-nano bubble generation system 2, under the working condition, the river water is sucked, the water flow is mixed with the ozone generated in the ozone generator 2.3 in the multistage pump 2.7 through the first water inlet pipe 2.8 to generate gas-liquid mixed fluid which enters the gas-liquid separation tank 2.11, the undissolved redundant ozone gas is discharged through an exhaust valve, the gas-liquid mixed fluid passes through a third water inlet pipe 2.12, a bent pipe 2.15, a third tee 2.13 and a fourth tee 2.16, the micro-nano bubbles are generated by the spraying and releasing of the micro-nano bubble releaser 2.17, the sprayed micro-nano bubbles are contacted with the bottom mud of the river channel and are oxidized and degraded, in the process, scum is guided to a water surface layer through a guide cylinder 3.6 of the scum scraping system 3, and then is scraped into a scum collecting tank 3.5 by a scum scraping plate and is collected to a certain degree to be pumped for external disposal.
Power supply system 1 includes circuit line 1.1, solar panel 1.2, dc-to-ac converter 1.3, solar panel 1.2 is down "V" shape and arranges, solar panel 1.2 passes through circuit line 1.1 hookup with inverter 1.3, inverter 1.3 will the direct current that solar panel 1.2 produced turns into scrapes sediment system 3 and the required alternating current of ozone micro-nano bubble generation system 2, solar panel 1.2 relies on support frame 4 supports.
The floating platform 5 is formed by splicing floating blocks and plays a role of bearing each system, the floating blocks are spliced into a U shape, and the guide cylinder 3.6 is positioned at the U-shaped opening; the box body 2.1 is arranged on a cross beam of the floating platform 5; the support frame 4 is fixedly connected to the floating platform 5 and used for supporting the solar panel 1.2; the guide shell 3.6 is fixed on the floating platform 5 through a supporting structure.
With reference to fig. 2, the ozone micro-nano bubble generation system 2 comprises a box body 2.1, a control panel 2.2, an ozone generator 2.3, an air inlet pipe 2.4, a second tee joint 2.5, a gas flowmeter 2.6, a multi-stage pump 2.7, a first water inlet pipe 2.8, a first tee joint 2.9, a second water inlet pipe 2.10, a gas-liquid separation tank 2.11, a third water inlet pipe 2.12, a third tee joint 2.13, a pipe clamp 2.14, a bent pipe 2.15, a fourth tee joint 2.16 and a micro-nano bubble releaser 2.17, wherein an input end of the first water inlet pipe 2.8 is introduced below the water surface and is provided with an 80-100-mesh filter screen, a water inlet regulating valve and a negative pressure meter are arranged on the first water inlet pipe 2.8, the pressure is maintained at-0.01-0 Mpa, and an output end is; the ozone generator 2.3 generates ozone gas, an air outlet pipeline of the ozone generator 2.3 is connected with an air inlet end of a gas flowmeter 2.6, an air outlet end of the gas flowmeter 2.6 is connected with an upper end inlet of a second tee joint 2.5 on an water inlet pipe, an water outlet end of the second tee joint 2.5 is connected with a water inlet of a multistage pump 2.7, an output end of the multistage pump 2.7 is connected with a gas-liquid separation tank 2.11, a pressure gauge and an exhaust valve are installed on the gas-liquid separation tank 2.11, the water inlet amount and the air inlet amount are regulated to maintain the internal pressure of the gas-liquid separation tank 2.11 within the range of 0.3-0.4Mpa, an output end of the gas-liquid separation tank 2.11 is connected with one end of a third water inlet pipe 2.12, the other end of the third water inlet pipe 2.12 is connected with a bent pipe 2.15 through a third tee joint 2.13, a pipe clamp 2.14 is welded with the guide pipe 3.6 to fix the third water inlet pipe 2.12, the bent pipe 2.15 surrounds a micro-nano guide pipe 3.6, the micro-nano bubble releaser 2.17 is obliquely downwards inclined by 45-60 degrees and is arranged on the inner side of the guide cylinder 3.6, and sprays ozone micro-nano bubbles to the bottom mud layer of the river channel.
With reference to fig. 3, the slag scraping system 3 comprises a motor 3.1, a bracket 3.2, a scraper 3.3, scraping strips 3.4 and a slag collecting tank 3.5, floating slag is generated in the process of injecting ozone micro-nano bubbles into bottom sediment of a river channel, floating is generated due to the air flotation of the micro-nano bubbles, the floating slag and the floating bubbles are guided to the water surface by a guide cylinder 3.6 of the slag scraping system 3, and the scraping strips 3.4 are installed at the lower end of the scraper 3.3; the motor 3.1 is driven by the power supply system 1 through electric energy to drive the scraper blade 3.3 to circularly reciprocate, the scraped sundries are driven by the scraper bar 3.4 to enter the slag collecting groove 3.5 of the guide cylinder 3.6, and the sundries are manually and periodically removed by a submersible sewage pump and are transported away.
A method for using a bottom mud in-situ ozone oxidation treatment device comprises the following steps:
the method comprises the following steps: starting the ozone generator 2.3, providing ozone for the multistage pump 2.7, adjusting an air inlet valve, and adjusting a flow meter of the air inlet pipe 2.4 to be minimum, wherein the output end of the ozone generator 2.3 is directly connected with the multistage pump 2.7;
step two: starting the multistage pump 2.7, continuously sucking the pool water through the first water inlet pipe 2.8, filtering the pool water by a filter screen, mixing the pool water with ozone after removing impurities in the inlet water, gradually adjusting the flow meter of the air inlet pipe 2.4 to ensure that the negative pressure expression number is-0.01-0 Mpa, forming a primary gas-liquid mixed fluid, and then feeding the primary gas-liquid mixed fluid into the gas-liquid separation tank 2.11;
step three: starting a gas-liquid separation tank 2.11, separating excessive ozone gas insoluble in water, and maintaining the gas-liquid ratio at 1: 10-20, installing a pressure gauge 2.11 in the gas-liquid separation tank, and maintaining the pressure in the tank at 0.3-0.4 Mpa;
step four: the treated gas-liquid mixture enters a third water inlet pipe 2.12 from the output end of a gas-liquid separation tank 2.11, descends to a third tee joint 2.13, then enters a bent pipe 2.15, and enters a micro-nano bubble releaser 2.17 from a fourth tee joint 2.16, so as to be contacted with bottom mud and oxidized.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (10)
1. The in-situ ozone oxidation treatment system for the bottom mud is characterized by comprising an ozone micro-nano bubble generation system, a slag scraping system and a power supply system; the power supply system is used for providing electric energy for the ozone micro-nano bubble generation system and the slag scraping system; the ozone micro-nano bubble generating system sprays generated ozone micro-nano bubbles into the bottom mud to oxidize and degrade the bottom mud, and scum generated in the oxidizing and degrading process is collected through the scum scraping system.
2. An in-situ ozonation treatment system of bottom sludge according to claim 1, wherein the slag scraping system comprises a motor (3.1), a scraper (3.3), a slag collection tank (3.5) and a guide shell (3.6); a support (3.2) is arranged above the guide cylinder (3.6), a motor (3.1) is arranged on the support (3.2), a scraping plate (3.3) is arranged at the output end of the motor (3.1), and a scraping strip (3.4) is arranged on the scraping plate (3.3); the slag collecting groove (3.5) is arranged in the guide shell (3.6), and the slag collecting groove (3.5) is used for collecting sundries scraped by the scraping strip (3.4).
3. An in-situ substrate sludge ozonation treatment system according to claim 1, wherein the power supply system comprises a solar panel (1.2), an inverter (1.3) and a circuit line (1.1); solar panel (1.2) are down "V" shape and arrange, solar panel (1.2) and inverter (1.3) pass through circuit line (1.1) intercommunication, inverter (1.3) will the direct current that solar panel (1.2) produced converts into the alternating current.
4. The in-situ bottom mud ozone oxidation treatment system of claim 1, wherein the ozone micro-nano bubble generation system comprises an ozone generator (2.3), a first water inlet pipe (2.8), a multi-stage pump (2.7), a gas-liquid separation tank (2.11) and a micro-nano bubble releaser (2.17); the first water inlet pipe (2.8) and the output end of the ozone generator (2.3) are connected with the input end of the multi-stage pump (2.7) through a second tee joint (2.5), the output end of the multi-stage pump (2.7) is communicated with the input end of the gas-liquid separation tank (2.11) through a pipeline, and the output end of the gas-liquid separation tank (2.11) is communicated with the input end of the micro-nano bubble releaser (2.17) through a pipeline; the output end of the micro-nano bubble releaser (2.17) sprays the ozone micro-nano bubbles into the sediment.
5. The in-situ bottom mud ozone oxidation treatment system according to claim 4, wherein the micro-nano bubble releaser (2.17) inclines downwards at 45-60 degrees and is arranged in a guide cylinder (3.6) in the slag scraping system.
6. The in-situ ozonation treatment system for bottom sediment according to claim 4, wherein an 80-100 mesh filter screen is installed at the input end of the first water inlet pipe (2.8).
7. The in-situ ozone oxidation treatment system for bottom sediment according to claim 4, wherein the micro-nano bubble releaser (2.17) is mounted on an elbow (2.15), and the elbow (2.15) is surrounded on the outer wall of the guide shell (3.6).
8. The in-situ ozone oxidation treatment system for the bottom sludge according to claim 1, wherein the ozone micro-nano bubble generation system is arranged in a box body (2.1), the box body (2.1) and the slag scraping system are both arranged on a floating platform (5), the box body (2.1) is arranged on a beam of the floating platform (5), the floating platform (5) is of a U-shaped structure, and the upper end of a guide cylinder (3.6) is arranged at an opening of the U-shaped structure; solar panel (1.2) among the power supply system supports through support frame (4), and support frame (4) are installed on floating platform (5).
9. Use of the in situ ozonation treatment system of sediment according to any one of claims 1 to 8, comprising the steps of:
the method comprises the following steps: starting an ozone generator (2.3), providing ozone for the multistage pump (2.7), adjusting an air inlet valve, and adjusting a flow meter of an air inlet pipe (2.4) to be minimum, wherein the output end of the ozone generator (2.3) is directly connected with the multistage pump (2.7);
step two: starting a multistage pump (2.7), continuously sucking pool water through a first water inlet pipe (2.8), filtering the pool water by a filter screen, removing impurities in the inlet water, mixing the pool water with ozone, gradually adjusting a flow meter of a gas inlet pipe (2.4), ensuring that the negative pressure expression number is-0.01-0 Mpa, forming a primary gas-liquid mixed fluid, and then feeding the primary gas-liquid mixed fluid into a gas-liquid separation tank (2.11);
step three: starting a gas-liquid separation tank (2.11) to separate excessive ozone gas insoluble in water, and keeping the gas-liquid ratio at 1: 10-20, installing a pressure gauge in a gas-liquid separation tank (2.11), and maintaining the pressure in the tank at 0.3-0.4 MPa;
step four: the treated gas-liquid mixture enters a third water inlet pipe (2.12) from the output end of a gas-liquid separation tank (2.11), descends to a third tee joint (2.13), then enters a bent pipe (2.15), and enters a micro-nano bubble releaser (2.17) from a fourth tee joint (2.16), so as to be in contact with bottom sediment and be oxidized.
10. The use method of the bottom mud in-situ ozone oxidation treatment system according to the claim, wherein in the second step, the river water is sucked through the first water inlet pipe (2.8), the ozone generator (2.3) generates ozone, the river water and the ozone enter the multistage pump (2.7) for gas-liquid mixing to obtain gas-liquid mixed fluid, and the gas-liquid mixed fluid flows into the gas-liquid separation tank (2.11).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114315077A (en) * | 2021-12-15 | 2022-04-12 | 江苏大学 | Bottom mud in-situ ozone oxidation reduction device and use method |
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