A floating basin for clarifying and oxygenating black and odorous water bodies and its use method

Abstract

A floating basin for clarifying and oxygenating black and odorous water bodies and a method for using the same comprise: a superoxide water preparation device, the superoxide water preparation device being located on a river bank and comprising a water inlet pump, a safety filter, an air compressor, a pressure tank and corresponding pipelines connected in sequence; a ceramic membrane release device, the ceramic membrane release device being connected to a water outlet pipe of the superoxide water preparation device and being movably fixed to the surface of a riverbed of a water body in the center of the floating basin filter device; a floating basin filter device, the floating basin filter device comprising a filter material matrix and emergent plants planted in the filter material. The present invention can simultaneously achieve clarification and oxygenation, is low-consumption and aesthetically pleasing, and has great engineering application prospects.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a clarification and oxygenation float basin for black and odorous water bodies and a use method thereof. Background Art

[0002] As living standards improve, so do environmental protection requirements. The remediation of black and odorous water bodies has become a key factor in improving the ecological landscape of cities and rural areas. Water bodies possess significant self-repair capabilities through submerged plants and sediment microorganisms. However, the influx of large amounts of pollutants can cause water bodies to become black and odorous, opaque, and low in dissolved oxygen, gradually diminishing their self-purification capacity. Therefore, after sewage interception, oxygenating rivers and improving water clarity are the primary methods for enhancing this self-purification capacity and improving black and odorous water bodies.

[0003] Currently, a wide range of water oxygenation technologies are available, including mechanical aeration, landscape fountains, and nanobubble machines. However, these technologies consume extremely high energy and have very low oxygen solubility, wasting a significant amount of energy. Furthermore, these technologies significantly agitate the water, leading to problems such as sediment upwelling and increased turbidity. Furthermore, these devices are susceptible to damage when left on the surface of the water for extended periods, resulting in a short lifespan and difficulty in maintenance. While nanobubble machines offer highly efficient oxygenation and some pollutant degradation capabilities, they require significant infrastructure investment and energy consumption, making them unsuitable for use on large water surfaces.

[0004] There are many ways and technologies to reduce water turbidity, such as bypass treatment equipment and in-situ drug addition and flocculation. Bypass treatment equipment often uses magnetic separation, membrane filtration and other methods, which require large infrastructure investment and high operation and maintenance costs. It is equivalent to building a sewage treatment station to treat river water and is not suitable for long-term operation. Second, technologies such as in-situ drug addition are only suitable for forming effects in a short period of time, and they only treat the symptoms but not the root cause. In addition, the chemical sediment will be released a second time at the bottom of the river, causing secondary pollution.

[0005] Patent CN201410469176.1 discloses an aeration device specifically designed for river pollution control and its use method. A water pump is used to draw water into a water inlet tank, oxygen is added to the water through an aerator, and a pressure tank is used to convert the gas in the water into microbubbles. These bubbles flow into the water and release oxygen into the water. This aeration device is placed on the shore, making it easy to operate without affecting the life of the equipment or stirring up the water to cause turbidity. However, this technology uses ex situ aeration, and compared to in situ aeration and other technologies, the amount of oxygen added is less, and the addition of intermediate links inevitably increases energy loss.

[0006] Patent CN201710807806.5 discloses an in-situ flotation treatment system for river water. It uses a micro-bubble aeration device to construct a flotation-like device, and directly places the equipment in the natural environment of the water body. By adding chemicals and separating the scum tank, the degradation of water pollutants is achieved. The bubble device described in this patent will cause secondary turbidity of the water body. The dosing and separation methods are similar to those of the ex-situ treatment device, requiring frequent manual maintenance to clean the scum and replenish the chemicals. In addition, the equipment is extremely susceptible to corrosion when placed in the water body, has a short lifespan, and is difficult to maintain. Summary of the Invention

[0007] In view of the shortcomings of the background technology, the present invention relates to a clarification and oxygenation float basin for black and odorous water bodies and a method of use. The present invention can simultaneously achieve clarification and oxygenation, and the low-consumption and beautiful water purification device has great engineering application prospects.

[0008] The present invention relates to a floating basin for clarifying and oxygenating black and odorous water bodies, comprising:

[0009] A superoxide water preparation device is located on the river bank and includes a water inlet pump, a safety filter, an air compressor, a pressure tank and corresponding pipelines connected in sequence;

[0010] A ceramic membrane release device, which is connected to the outlet pipe of the superoxide water preparation device and is movably fixed to the surface of the riverbed in the center of the floating basin filter device;

[0011] A floating basin filter device comprises a filter material matrix and emergent plants planted in the filter material.

[0012] The water inlet pump is placed along the river bank to introduce water, and the water enters the pressure tank after preliminary filtration by the safety filter.

[0013] Optionally, the pressure provided by the water inlet pump head needs to be greater than 0.6MPa. Under the pressure of 0.6MPa, the water pump flow rate needs to reach 100-200L / h.

[0014] The water inlet pump is not a supporting equipment and needs to be optimized based on parameters such as the distance between on-site equipment and the river channel and height difference.

[0015] Optionally, the security filter can use PP melt-blown, wire-sintered, folded, titanium filter element, activated carbon filter element and other tubular filter elements as filter elements. The preferred specification is 200-300L / h. When the water quality of the river inlet is relatively turbid, a larger specification filter is selected to increase the filter replacement cycle. When the river water quality is clear, a small specification filter is selected to reduce investment.

[0016] Optionally, an air compressor pumps gas into a pressure tank. The gas source can be in various forms such as air and pure oxygen, depending on the sewage situation in the river. When the water body is severely black and smelly, pure oxygen is used as the gas source to quickly restore the dissolved oxygen in the water body. When the black and smelly degree is low or the water body has been alleviated by the pure oxygen source, it can be changed to air as the gas source.

[0017] The pressure tank capacity is optional and can be 50-120L. A too small volume will result in insufficient air dissolution, while a too large volume will result in a waste of investment. The pressure tank maintains the pressure inside the tank at 0.35-0.55 MPa through the water inlet pump. A too small volume will result in insufficient air dissolution, while a too large volume will increase the operating pressure of the releaser, water pump, and air compressor, which is unsafe and consumes a lot of energy.

[0018] The outlet water of the pressure tank is superoxide water, which is connected to the ceramic membrane release device through a valve, and the superoxide water is gradually released from the gaps in the ceramic membrane.

[0019] Optionally, the material of the ceramic membrane release device includes, but is not limited to, one or more of aluminum oxide and silicon carbide. Ceramic membranes have the characteristics of high hardness and corrosion resistance, long service life, and can be restored to their original membrane effect after physical cleaning.

[0020] Optionally, the ceramic membrane pores of the ceramic membrane release device are 100-300 μm, and the total area is 0.3-0.6 m 2 When the area is too small, the ceramic membrane flow rate is too large, which will lead to excessive pressure, affecting the life of the membrane components and the operating pressure of the pressure tank. When the area is too large, their flow rate is small, which will lead to insufficient pressure. At this time, the pressure can be increased through the valve, but it will also reduce the release effect of superoxide water and increase investment.

[0021] After the ceramic membrane release device releases superoxide water, the resulting scum slowly rises to the river surface, oxygenating the water. Once the scum reaches the surface, it flows downstream with the water. As it passes through the float basin, it is absorbed by the basin matrix and subsequently absorbed, transformed, and degraded by the biofilm and emergent plants.

[0022] Optionally, the base material of the floating basin filter device is porous polyurethane filter material, and the pore size of the filter material is 30-60PPI.

[0023] If the pores are too small, the float basin will be easily clogged, and if the pores are too large, the filtration effect of the float basin will be poor.

[0024] Optionally, the float basin may be partially weighted with foam panels so that the polyurethane filter material can stably float on the surface of the water.

[0025] Optionally, the float basin filter device is a circular device with a diameter of 2.5-4 meters. If it is too small, some microporous bubbles will exceed the float basin range before floating up. If it is too large, the scum will sink again due to bubble breakage before being adsorbed.

[0026] Optionally, the floating basin is suitable for water bodies with small flow and no external pollution. The effective service area of ​​a single set of equipment is 0-200m 2 When the watershed is large, multiple sets of equipment should be evenly distributed. When the watershed is large, multiple sets of equipment should be evenly distributed.

[0027] The present invention also provides a method for using a floating basin for clarifying and oxygenating black and odorous water bodies, the specific steps of which are as follows:

[0028] S1. The water inlet pump lifts the river water to the superoxide water preparation device, and then enters the pressure tank after passing through the filter. At the same time, the air compressor pumps gas into the pressure tank. The air source of the air compressor can be air, pure oxygen, etc., which can be adjusted according to the actual needs of the black and odorous water. The filtration pressure of the ceramic membrane itself keeps the pressure tank at a high pressure, thereby forming superoxide water.

[0029] S2. The ceramic membrane release device is fixed to the riverbed by a weight. High-negative-pressure water is slowly released into the water through the ceramic membrane. Part of the super-oxygenated water merges with the natural water, thereby increasing the dissolved oxygen in the river. Due to the reduction in pressure, the gas in the super-oxygenated water is gradually released from the water, forming low-power, high-density micron-sized bubbles.

[0030] S3. Micron-sized bubbles will slowly move upwards in the above process, causing tiny suspended solids and pollutants in the water to rise and form scum.

[0031] S4. Under the power of river water and bubbles, the scum spreads around and is filtered by the float basin filter device. The impurities are adsorbed by the base of the float basin and gradually absorbed and degraded by the biofilm system and emergent plants in the base.

[0032] Furthermore, the ceramic membrane release device is fixed to the riverbed via a heavy pendant. When the water depth is less than 2 meters, the ceramic membrane release device is installed 0.2-0.4 meters above the riverbed. When the water depth is greater than 2 meters, the ceramic membrane release device is installed 1.8-2.5 meters below the water surface. When the distance from the riverbed is too close, the riverbed mud will be impacted by the super-oxygenated water, causing turbidity. When the distance from the riverbed is farther, but the depth needs to be maintained at 1.8-2.5 meters, this is because the released microporous bubbles are in contact with the water too deep, resulting in insufficient dissolved oxygen and adsorption effects. When the depth is too deep, the released microporous bubbles cannot be retained, and while the dissolved oxygen is increased, the adsorption effect is lost.

[0033] Furthermore, the air compressor is used to deliver air to the pressure tank, and the pressure tank is supplied with pressure by a water inlet pump to maintain the pressure inside the tank at 0.35-0.55 MPa.

[0034] The main beneficial effects of the present invention are:

[0035] 1. It has the functions of oxygenating and clarifying water, solving the problem of black and smelly water at both ends;

[0036] 2. The water body is treated in situ, and the equipment is placed on the shore, without interfering with the original ecology. The overall equipment is beautiful and neat;

[0037] 3. The ceramic membrane release device is used for the first time, which has a long service life and is easy to maintain and regenerate. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a process flow chart of the present invention.

[0039] Figure numerals: 1. Water inlet pump; 2. Safety filter; 3. Pressure tank; 4. Air compressor; 5. Control cabinet; 6. Superoxide water preparation device; 7. Polyurethane base float basin; 8. Ceramic membrane release device; 9. Weight pendant. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe and discuss the technical solutions in the embodiments of the present invention in conjunction with the drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] To facilitate understanding of the embodiments of the present invention, the following will be further explained with reference to specific embodiments as examples in conjunction with the accompanying drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.

[0042] Example 1 of the present invention refers to Figure 1 As shown, a clarification and oxygenation float basin for black and odorous water bodies includes a superoxide water preparation device 6 box placed on the shore and a releaser and a float basin placed in the water body. The superoxide water preparation device 6 box is installed with a water inlet pump 1, a safety filter 2, a pressure tank 3, an air compressor 4 and an overall power control cabinet 5 for all equipment connected in sequence. The water outlet of the pressure tank 3 is connected to a ceramic membrane release device 8. The upper part of the ceramic membrane release device 8 is connected to a polyurethane base float basin 7, and the lower part is connected to a weight pendant 9 for fixing the entire float basin system.

[0043] During use, the upper layer of clean water in the river channel is pumped into the system through the water inlet pump 1, and first enters the security filter 2 to remove large particle impurities such as suspended matter in the water body, and then enters the pressure tank 3 under the action of the water pump pressure, and inputs air into the pressure tank 3 through the air compressor 4. The pressure in the pressure tank 3 is controlled to be 0.35-0.55 MPa through the adjustment of the tail valve and the ceramic membrane release device 8. At this time, the air (or pure oxygen) will dissolve into the water body under high pressure to form superoxide water, and then the superoxide water body enters the ceramic membrane release device 8, and the micropores of the ceramic membrane flow into the black and smelly water body. When it loses pressure after entering the water body, the superoxide water body is gradually released to form microporous bubbles. The microporous bubbles can quickly increase the dissolved oxygen in the water body, and adsorb the suspended matter in the water body to form scum floating on the surface, thereby achieving water clarification and oxygenation simultaneously.

[0044] The present invention provides a method for using a floating basin for clarifying and oxygenating black and odorous water bodies, and the specific operating steps are as follows:

[0045] S1, the water inlet pump 1 boosts the power of the river water to the superoxide water preparation device 6, and then enters the pressure tank 3 after passing through the filter. At the same time, the gas is pumped into the pressure tank 3 through the air compressor 4. The gas source of the air compressor 4 can be air, pure oxygen, etc., which can be adjusted according to the actual needs of the black and odorous water body. The filtration pressure of the ceramic membrane itself keeps the pressure tank 3 at a high pressure, thereby forming superoxide water;

[0046] S2, the ceramic membrane release device 8 is fixed to the riverbed by a weight, and the high negative pressure water is slowly released into the water through the ceramic membrane. Part of the superoxide water merges with the natural water, thereby increasing the dissolved oxygen in the river. Due to the reduction in pressure, the gas in the superoxide water is gradually released from the water, forming low-power high-density micron-level bubbles;

[0047] S3. Micron-sized bubbles will slowly move upwards in the above process, causing tiny suspended solids and pollutants in the water to rise and form scum.

[0048] S4. Under the power of river water and bubbles, the scum spreads around and is filtered by the float basin filter device. The impurities are adsorbed by the base of the float basin and gradually absorbed and degraded by the biofilm system and emergent plants in the base.

[0049] As one of the experimental examples of the present invention, a simulated water pool with a size of 2m*2m*1m was selected, and the water quality indicators in the water pool were controlled to be the same. Three sets of equipment of the present invention were respectively selected to adjust the parameters to be consistent. The lift of the water inlet pump 1 in the three sets of superoxide water preparation devices 6 was adjusted to 0.5MPa pressure, 0.6MPa pressure and 0.7MPa pressure respectively. The experimental data of the float basin were as shown in the following table:

[0050] Table 1:

[0051] Main water quality indicators Before implementation (unit: mg / L) After 0.5MPa pressure application (unit: mg / L) After 0.6MPa pressure implementation (unit: mg / L) After 0.7MPa pressure implementation (unit: mg / L) SS 46 19 11 14 dissolved oxygen 1.3 5.4 6.9 6.6

[0052] Conclusion: When the head of the water inlet pump 1 is controlled at 0.6MPa pressure, the purification effect on the water quality indicators is the best. It can be judged that when the flow rate is small, it will lead to insufficient filtration pressure of the rear ceramic membrane release device 8, resulting in insufficient pressure in the pressure tank 3, and ultimately resulting in low dissolved oxygen content in the water body.

[0053] As one of the experimental examples of the present invention, a simulated water pool with a size of 2m*2m*1m was selected. The water quality indicators in the water pool were controlled to be the same. Five sets of equipment of the present invention were respectively selected to adjust the parameters to be consistent. The pore sizes of the ceramic membranes used in the five sets of clarification and oxygenation float basins were selected to be 50μm, 100μm, 200μm, 300μm and 400μm respectively. The experimental data were as shown in the following table:

[0054] Table 2:

[0055] Main water quality indicators Before implementation (unit: mg / L) After implementation of pore size 50μm (unit: mg / L) After pore size 100μm (unit: mg / L) After pore size 200 μm (unit: mg / L) After pore size 300μm (unit: mg / L) After pore size 400μm (unit: mg / L) SS 42 24 10 13 17 32 dissolved oxygen 1.6 3.3 6.1 5.9 5.1 3.3

[0056] Conclusion: Ceramic membrane pore sizes of 100μm, 200μm, and 300μm all meet the surface water quality standard for Class III or higher. Under this water quality standard, the 100μm pore size offers the best purification effect. A 50μm pore size, however, produces a low water output due to excessive pressure. While effective, this results in significant equipment losses.

[0057] As one of the experimental examples of the present invention, four simulated water pools with a size of 2m*2m*1m were selected. The water quality indicators in the pools were controlled to be the same. Four sets of equipment of the present invention were respectively selected to adjust the parameters to be consistent. The filter material pores of the porous polyurethane filter material used in the four sets of clarification and oxygenation float basins were selected to be 15PPI, 35PPI, 55PPI and 75PPI respectively. The experimental data were as shown in the following table:

[0058] Table 3:

[0059] Main water quality indicators Before implementation (unit: mg / L) After 15PPI implementation (unit: mg / L) After the implementation of 35PPI pores (unit: mg / L) Pore ​​55PPI after implementation (unit: mg / L) After the implementation of 75PPI pores (unit: mg / L) SS 42 5 10 13 29 dissolved oxygen 1.6 6.2 6.1 6.2 6.0

[0060] Conclusion: When the pore size of the porous polyurethane filter material is selected as 15PPI, the water quality purification index has a significant effect in the early stage. However, after 5 hours of use, the filter material is blocked, affecting the water quality purification experiment. When the pore size of the porous polyurethane filter material is selected as 35PPI and 55PPI, it takes into account both the requirements of no clogging and effective filtration, and meets the water quality purification index. Among them, under this water quality index, when the filter material pore size is selected as 35PPI, the purification effect on the water quality index is the best.

[0061] As one of the experimental examples of the present invention, three river channel areas with a size of φ6m*2m were selected, separated by 50 meters. Three sets of the equipment of the present invention were respectively selected and the parameters were adjusted to be consistent. The diameters of the float basin filtration devices used in the three sets of clarification and oxygenation float basins were 1.5m, 3.5m and 5.5m respectively. The experimental data were as shown in the following table:

[0062] Table 4:

[0063] Main water quality indicators Before implementation (unit: mg / L) After implementation at a diameter of 1.5m (unit: mg / L) After pressure is applied at 3.5m diameter (unit: mg / L) Diameter 5.5m after pressure application (unit: mg / L) SS 45 11 9 23 dissolved oxygen 1.2 5.8 6.1 6.0

[0064] Conclusion: When the diameter of the floating basin filter device is 3.5m, the purification effect on water quality indicators is the best.

[0065] As one of the experimental examples of the present invention, three simulated water pools with a size of 2m*2m*1m were selected. The water quality indicators in the water pools were controlled to be the same. Three sets of equipment of the present invention were respectively selected to adjust the parameters to be consistent. Among them, the pressure tanks 3 used in the three sets of clarification and oxygenation float basins were adjusted to supply pressure from the water inlet pump 1, and the pressure in the tanks was stabilized to 0.2MPa, 0.4MPa and 0.6MPa respectively. The experimental data were as shown in the following table:

[0066] Table 5:

[0067] Main water quality indicators Before implementation (unit: mg / L) After 0.2MPa pressure implementation (unit: mg / L) After 0.4MPa pressure application (unit: mg / L) After 0.6MPa pressure implementation (unit: mg / L) SS 45 31 8 15 dissolved oxygen 1.2 4.0 6.7 4.8

[0068] Conclusion: When the pressure inside the tank is maintained at 0.4MPa, the water purification effect is best.

[0069] As one of the experimental examples of the present invention, a river channel area with a width of about 20 m was selected. The ceramic membrane release device 8 was placed in the center of the pool. Water samples were collected at 5, 10, 15, and 20 meters outside the center area for testing. The experimental data were as shown in the following table:

[0070] Table 6:

[0071] Main water quality indicators Before implementation (unit: mg / L) 5m3 (unit: mg / L) 10m3 (unit: mg / L) 15m3 (unit: mg / L) 20m3 (unit: mg / L) SS 52 11 13 25 41 dissolved oxygen 1.8 7.7 6.2 4.8 2.5

[0072] Conclusion: In the central area, the purification efficiency of the clarification and oxygenation floating island meets the standard. When the diameter exceeds 15m, the water purification effect becomes worse. When the diameter exceeds 15m, the water quality changes are not obvious.

[0073] After many experiments on the purification basin area, it was finally concluded that the service diameter of a single set of equipment should be less than 15 meters, that is, the service area should be controlled within 0-200m 2 For best results, equipment can be installed according to the basin area requirements.

[0074] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed by the present invention, or replace some of the technical features therein with equivalents. Such modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A method for using a floating basin for clarifying and oxygenating black and odorous water bodies, characterized in that: include: A superoxide water preparation device (6), the superoxide water preparation device (6) is located on the river bank and comprises a water inlet pump (1), a safety filter (2), an air compressor (4), a pressure tank (3) and corresponding pipelines connected in sequence; A ceramic membrane release device (8), the ceramic membrane release device (8) is connected to the outlet pipe of the superoxide water preparation device (6), and is movably fixed to the riverbed surface below the central water body of the floating basin filter device; A floating basin filter device, comprising a filter material matrix and emergent plants planted in the filter material; The specific steps are as follows: S1, the water inlet pump (1) lifts the power of the river water to the superoxide water preparation device (6), and then enters the pressure tank (3) after passing through the filter. At the same time, the air is pumped into the pressure tank (3) through the air compressor (4). The air source of the air compressor (4) can be air or pure oxygen, which is adjusted according to the actual needs of the black and odorous water body. The pressure tank (3) is kept at a high pressure through the filtration pressure of the ceramic membrane itself, thereby forming a superoxide water body; S2, the ceramic membrane release device (8) is fixed to the riverbed by a weight, and the high-pressure water is slowly released into the water through the ceramic membrane. Part of the super-oxygenated water merges with the natural water, thereby increasing the dissolved oxygen in the river. Due to the reduction in pressure, the gas in the super-oxygenated water is gradually released from the water, forming low-power high-density micron-sized bubbles; S3. Micron-sized bubbles slowly rise up, causing tiny suspended matter and pollutants in the water to rise and form scum. S4. Under the power of river water and bubbles, the scum spreads around and is filtered by the float basin filter device. The impurities are adsorbed by the base of the float basin and gradually absorbed and degraded by the biofilm system and emergent plants in the base.

2. The method for using a floating basin for clarifying and oxygenating black and odorous water according to claim 1, characterized in that: The pressure provided by the lift of the water inlet pump (1) needs to be greater than 0.6 MPa. Under the pressure of 0.6 MPa, the water pump flow rate needs to reach 100-200 L / h.

3. The method for using a floating basin for clarifying and oxygenating black and odorous water according to claim 1, characterized in that: The ceramic membrane release device (8) is a flat ceramic membrane, and the material of the ceramic membrane release device (8) includes one or more of aluminum oxide and silicon carbide.

4. The method for using a floating basin for clarifying and oxygenating black and odorous water according to claim 3, characterized in that: The ceramic membrane pores of the ceramic membrane release device (8) are 100-300 μm, and the total area is 0.3-0.6 m 2 .

5. The method for using a floating basin for clarifying and oxygenating black and odorous water according to claim 1, characterized in that: The base material of the floating basin filter device is porous polyurethane filter material, and the pore size of the filter material is 30-60PPI.

6. The method for using a floating basin for clarifying and oxygenating black and odorous water according to claim 5, characterized in that: The floating basin filtering device is a circular device with a diameter of 2.5-4 meters.

7. The method for using a floating basin for clarifying and oxygenating black and odorous water according to claim 1, characterized in that: The ceramic membrane release device (8) is fixed on the riverbed by a weight pendant (9). When the water depth is less than 2 meters, the installation position of the ceramic membrane release device (8) is 0.2-0.4 meters above the riverbed. When the water depth is greater than 2 meters, the installation position of the ceramic membrane release device (8) is 1.8-2.5 meters below the water surface.

8. The method for using a floating basin for clarifying and oxygenating black and odorous water according to claim 1, characterized in that: The air compressor (4) is used to deliver air to the pressure tank (3), and the pressure tank (3) is supplied with pressure by the water inlet pump (1) to maintain the pressure inside the tank at 0.35-0.55 MPa.

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