Oil sludge separation treatment method and system applied to sewage sedimentation tank

Abstract

The present application relates to the field of water treatment technology, and specifically to an oil sludge separation treatment method and system applied to a sewage sedimentation tank. When applied, the present application can achieve efficient separation and treatment of oil film and sludge in sewage. By adjusting the power and direction of the wave maker, the water flow can be dynamically adjusted according to the actual thickness of the oil film and sludge to improve the removal efficiency. When the oil film is thicker, the surface flow rate is increased to improve the oil film removal efficiency, and when there is more sludge, the bottom flow rate is increased to improve the sediment treatment efficiency. When both the oil film and the sludge are thicker, the direction of the second side wave maker is adjusted to form a flow fault in the middle of the water body, reducing the oil film from migrating to the bottom of the water and the sediment from suspending to the water surface, thereby independently treating the oil film and independently treating the sludge. When both the oil film and the sludge are thin, a large circulation is formed by increasing the power of all wave makers, which increases the accumulation rate of the oil film and the sludge, thereby improving the overall treatment efficiency.

Description

Technical Field

[0001] The present application relates to the field of water treatment technology, and in particular to an oil sludge separation and treatment method and system applied to a sewage sedimentation tank. Background Art

[0002] Water pollution control technology is a key branch of environmental engineering. Currently, the main technical means used in water pollution control cover multiple process flows, including physical treatment, chemical treatment, and biological treatment. Physical treatment mainly separates pollutants through physical processes such as filtration, sedimentation, and centrifugation. Chemical treatment treats pollutants by adding chemicals to react with harmful substances in the wastewater. Biological treatment uses microorganisms to oxidize and decompose organic matter in the wastewater. During the physical treatment process, sedimentation tanks are designed to effectively separate grease and sludge from the wastewater. Grease accumulates on the water surface due to buoyancy, while sludge settles to the bottom of the tank. Improving the efficiency of grease and sludge separation is a key technical challenge facing this field. Summary of the Invention

[0003] In view of this, the present application provides an oil sludge separation treatment method and system applied to a sewage sedimentation tank, which can effectively improve the separation efficiency of oil and sludge.

[0004] In the first aspect, the present application provides an oil sludge separation and treatment method for a sewage sedimentation tank, wherein a first side wave maker immersed in sewage is provided on one side wall of the sedimentation tank, and a second side wave maker immersed in sewage is provided on the two opposite side walls of the sedimentation tank, the first side wave maker is at a distance of 5 cm to 15 cm from the water surface, the second side wave maker is at a distance of 50 cm to 150 cm from the water surface, the second side wave makers arranged on the two opposite side walls are at different horizontal heights, the bottom of the sedimentation tank includes adjacent sludge sliding planes and a sludge collecting pit, a bottom wave maker is provided above the sludge sliding plane, and the distance between the bottom wave maker and the sludge sliding plane is 5 cm~15cm; an oil film extraction port is provided on the side of the sedimentation tank, and the distance between the oil film extraction port and the water surface is 0cm~5cm; wherein, the oil sludge separation treatment method applied to the sewage sedimentation tank comprises: controlling the first side wave maker to generate waves in the horizontal direction at a first preset power, controlling the second side wave maker to generate waves along the wall of the sedimentation tank at a second preset power, and controlling the bottom wave maker to generate waves along the bottom surface of the sedimentation tank at a third preset power; obtaining the average thickness of the oil film on the water surface of the sedimentation tank, and obtaining the average thickness of the sludge on the sludge sliding plane; if the average thickness of the oil film is greater than or equal to the first preset thickness of the oil film and the sludge If the average thickness of the mud is less than the first preset thickness of the mud, the first side wave maker is controlled to make waves in the horizontal direction and increase the power, the second side wave maker is controlled to make waves along the wall of the sedimentation tank and reduce the power, and the bottom wave maker is controlled to make waves along the bottom of the sedimentation tank and reduce the power; if the average thickness of the oil film is less than the first preset thickness of the oil film and the average thickness of the silt is greater than or equal to the first preset thickness of the silt, the second side wave maker is controlled to stop making waves, and the bottom wave maker is controlled to make waves along the bottom of the sedimentation tank and increase the power; if the average thickness of the oil film is greater than or equal to the first preset thickness of the oil film and the average thickness of the silt is greater than is greater than or equal to the first preset sludge thickness, the first side wave maker is controlled to generate waves in a horizontal direction and increase the power, the bottom wave maker is controlled to generate waves along the bottom surface of the sedimentation tank and increase the power, and the second side wave maker is controlled to generate waves in a direction different from the wall surface; and if the average thickness of the oil film is less than the first preset oil film thickness and the average sludge thickness is less than the first preset sludge thickness, the first side wave maker is controlled to generate waves in a horizontal direction and increase the power, the second side wave maker is controlled to generate waves along the wall surface of the sedimentation tank and increase the power, and the bottom wave maker is controlled to generate waves along the bottom surface of the sedimentation tank and increase the power.

[0005] In combination with the first aspect, in a possible implementation, there are multiple first side wave makers; there are multiple second side wave makers; there are multiple bottom wave makers, and the multiple bottom wave makers are evenly arranged along the length direction of the mud sliding plane.

[0006] In combination with the first aspect, in a possible implementation, obtaining the average thickness of the oil film on the water surface of the sedimentation tank includes: obtaining an oil film image on the water surface of the sedimentation tank; setting a water surface reference height of the sedimentation tank; calculating the oil film thickness at various positions of the water surface oil film based on the depth information of the water surface oil film image and the water surface reference height; and uniformly sampling the oil film thickness at multiple positions of the water surface oil film and calculating the average thickness of the oil film.

[0007] In combination with the first aspect, in a possible implementation, obtaining the average thickness of the silt on the silt slip plane includes: obtaining a bottom silt image of the sedimentation tank; setting a bottom reference height of the sedimentation tank; calculating the silt thickness at various positions of the bottom silt based on the depth information of the bottom silt image and the bottom reference height; and uniformly sampling the silt thickness at multiple positions of the bottom silt and calculating the average silt thickness.

[0008] In combination with the first aspect, in a possible implementation, if the average thickness of the oil film is greater than or equal to the first preset thickness of the oil film and the average thickness of the silt is less than the first preset thickness of the silt, then the first side wave maker is controlled to make waves in the horizontal direction and increase the power, the second side wave maker is controlled to make waves along the wall of the sedimentation tank and reduce the power, and the bottom wave maker is controlled to make waves along the bottom of the sedimentation tank and reduce the power. The method includes: if the average thickness of the oil film is greater than or equal to the first preset thickness of the oil film and the average thickness of the silt is less than the first preset thickness of the silt, then the first side wave maker is controlled to increase the power at a first increasing rate, and the bottom wave maker is controlled to reduce the power at a second reducing rate.

[0009] In combination with the first aspect, in a possible implementation, if the average thickness of the oil film is less than the first preset thickness of the oil film and the average thickness of the silt is greater than or equal to the first preset thickness of the silt, the second side wave maker is controlled to stop making waves, and the bottom wave maker is controlled to make waves along the bottom surface of the sedimentation tank and increase the power, including: if the average thickness of the oil film is less than the first preset thickness of the oil film and the average thickness of the silt is greater than or equal to the first preset thickness of the silt, the bottom wave maker is controlled to reduce power at a second reduction rate.

[0010] In combination with the first aspect, in a possible implementation, if the average thickness of the oil film is greater than or equal to the first preset thickness of the oil film and the average thickness of the silt is greater than or equal to the first preset thickness of the silt, then the first side wave maker is controlled to make waves in a horizontal direction and increase the power, the bottom wave maker is controlled to make waves along the bottom surface of the sedimentation tank and increase the power, and the second side wave maker is controlled to make waves in a direction different from the wall surface, including: if the average thickness of the oil film is greater than or equal to the first preset thickness of the oil film and the average thickness of the silt is greater than or equal to the first preset thickness of the silt, then the wave making directions of the second side wave makers on the two relative side walls are controlled to be opposite to form two upper and lower circulating currents in the sedimentation tank; the first side wave maker is controlled to increase power at a first increasing rate, and the bottom wave maker is controlled to increase power at a second increasing rate.

[0011] In combination with the first aspect, in a possible implementation, if the average thickness of the oil film is greater than or equal to the first preset thickness of the oil film and the average thickness of the silt is greater than or equal to the first preset thickness of the silt, then the first side wave maker is controlled to make waves in a horizontal direction and increase the power, the bottom wave maker is controlled to make waves along the bottom surface of the sedimentation tank and increase the power, and the second side wave maker is controlled to make waves in a direction different from the wall surface, including: if the average thickness of the oil film is greater than or equal to the first preset thickness of the oil film and the average thickness of the silt is greater than or equal to the first preset thickness of the silt, then the second side wave maker is controlled to swing toward the opposite side wall to make waves.

[0012] In combination with the first aspect, in a possible implementation, if the average thickness of the oil film is less than the first preset thickness of the oil film and the average thickness of the silt is less than the first preset thickness of the silt, then the first side wave maker is controlled to make waves in the horizontal direction and increase the power, the second side wave maker is controlled to make waves along the wall of the sedimentation tank and increase the power, and the bottom wave maker is controlled to make waves along the bottom of the sedimentation tank and increase the power. The method includes: if the average thickness of the oil film is less than the first preset thickness of the oil film and the average thickness of the silt is less than the first preset thickness of the silt, then the first side wave maker is controlled to increase the power at a first increasing rate, the bottom wave maker is controlled to increase the power at a second increasing rate, and the second side wave maker is controlled to increase the power at a third increasing rate.

[0013] In the second aspect, the present application provides an oil sludge separation and treatment system applied to a sewage sedimentation tank, wherein a first side wave maker immersed in sewage is provided on one side wall of the sedimentation tank, and a second side wave maker immersed in sewage is provided on the two opposite side walls of the sedimentation tank, the first side wave maker is 5cm~15cm away from the water surface, the second side wave maker is 50cm~150cm away from the water surface, the second side wave makers arranged on the two opposite side walls are at different horizontal heights, the bottom of the sedimentation tank includes adjacent sludge sliding planes and a sludge collecting pit, a bottom wave maker is provided above the sludge sliding plane, and the distance between the bottom wave maker and the sludge sliding plane is 5cm~15cm; An oil film extraction port is provided on the side of the sedimentation tank, and the distance between the oil film extraction port and the water surface is 0 cm to 5 cm; wherein, the oil sludge separation treatment system applied to the sewage sedimentation tank includes: a first wave-making control module, configured to: control the first side wave maker to make waves in the horizontal direction with a first preset power, control the second side wave maker to make waves along the wall of the sedimentation tank with a second preset power, and control the bottom wave maker to make waves along the bottom of the sedimentation tank with a third preset power; a data acquisition module, configured to: obtain the average thickness of the oil film on the water surface of the sedimentation tank, and obtain the average thickness of the sludge on the sludge sliding plane; a second wave-making control module, which is connected to the first wave-making control module and the data acquisition module. The data acquisition module is respectively communicated and connected, and the second wave-making control module is configured as follows: if the average thickness of the oil film is greater than or equal to the first oil film preset thickness and the average thickness of the silt is less than the first silt preset thickness, then the first side wave maker is controlled to make waves in the horizontal direction and increase the power, the second side wave maker is controlled to make waves along the wall of the sedimentation tank and reduce the power, and the bottom wave maker is controlled to make waves along the bottom of the sedimentation tank and reduce the power; a third wave-making control module is respectively communicated and connected with the first wave-making control module and the data acquisition module, and the third wave-making control module is configured as follows: if the average thickness of the oil film is less than the first oil film preset thickness and the average thickness of the silt is greater than or equal to the first preset silt thickness, then controlling the second side wave maker to stop making waves, and controlling the bottom wave maker to make waves along the bottom surface of the sedimentation tank and increase the power; a fourth wave making control module, communicating with the first wave making control module and the data acquisition module respectively, and the fourth wave making control module is configured as follows: if the average thickness of the oil film is greater than or equal to the first preset oil film thickness and the average thickness of the silt is greater than or equal to the first preset silt thickness, then controlling the first side wave maker to make waves in a horizontal direction and increase the power, controlling the bottom wave maker to make waves along the bottom surface of the sedimentation tank and increase the power, and controlling the second side wave maker to make waves in a direction different from the wall surface;and a fifth wave-making control module, which is communicatively connected to the first wave-making control module and the data acquisition module, respectively. The fifth wave-making control module is configured to: if the average thickness of the oil film is less than the first preset oil film thickness and the average thickness of the silt is less than the first preset silt thickness, control the first side wave maker to generate waves in a horizontal direction and increase power, control the second side wave maker to generate waves along the wall of the sedimentation tank and increase power, and control the bottom wave maker to generate waves along the bottom surface of the sedimentation tank and increase power;

[0014] When used, the present application can achieve efficient separation and treatment of oil film and sludge in sewage. The first side wave maker, the second side wave maker and the bottom wave maker can work together to form a unified circulation direction, promoting the separation of pollutants in sewage. By adjusting the power and direction of the wave maker, the water flow can be dynamically adjusted according to the actual thickness of the oil film and sludge to improve the removal efficiency. Specifically, when the oil film is thicker and the sludge is thinner, the surface flow rate is increased to improve the oil film removal efficiency; when the sludge is more and the oil film is thicker, the bottom flow rate is increased to improve the sediment treatment efficiency. When both the oil film and the sludge are thicker, by adjusting the direction and power of the second side wave maker, a flow fault can be formed in the middle of the water body, reducing the oil film from migrating to the bottom of the water and the sediment from floating to the surface of the water, thereby independently treating the oil film and independently treating the sludge. When both the oil film and the sludge are thin, by increasing the power of all wave makers, a large circulation is formed, the accumulation rate of the oil film and the sludge is increased, thereby improving the overall treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shown is a schematic structural diagram of a water pollution treatment sedimentation tank provided in one embodiment of the present application.

[0016] Figure 2 Shown is a schematic diagram of the method steps of an oil sludge separation treatment method applied to a sewage sedimentation tank provided by another embodiment of the present application.

[0017] Figure 3 FIG2 is a schematic diagram showing the formation of two independent circulation loops in a sewage pool according to an embodiment.

[0018] Figure 4 Shown is a schematic diagram of the steps of a method for calculating the average thickness of an oil film provided in another embodiment of the present application.

[0019] Figure 5 Shown is a schematic diagram of the method steps for calculating the average thickness of silt provided in another embodiment of the present application.

[0020] Figure 6 Shown is a schematic diagram of the specific treatment method steps when the oil film is thick and the sludge is thin, provided by another embodiment of the present application.

[0021] Figure 7 Shown is a schematic diagram of the specific treatment method steps provided by another embodiment of the present application when the oil film is thin and the sludge is thick.

[0022] Figure 8 Shown is a schematic diagram of the specific processing method steps for achieving two independent circulations when the oil film is thick and the sludge is thick, provided by another embodiment of the present application.

[0023] Figure 9 Shown is a schematic diagram of the specific processing steps of the swing-type wave-making method provided by another embodiment of the present application when the oil film and silt are thick.

[0024] Figure 10 Shown is a schematic diagram of the specific treatment method steps when the oil film and sludge are thin, provided by another embodiment of the present application.

[0025] Figure 11 The figure shows a schematic diagram of the system structure of an oil sludge separation and treatment system applied to a sewage sedimentation tank provided by one embodiment of the present application. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0027] The data control method of the liquid cooling system of an exemplary intelligent computing server is as follows:

[0028] Figure 1 The figure shows a schematic diagram of the structure of a water pollution treatment sedimentation tank provided by an embodiment of the present application. Figure 1As shown, a first side wave maker 21 immersed in sewage is provided on one side wall 11 of the sedimentation tank 10, and a second side wave maker 22 immersed in sewage is provided on the two opposite side walls 11 of the sedimentation tank 10. The distance between the first side wave maker 21 and the water surface is 5cm~15cm, and the distance between the second side wave maker 22 and the water surface is 50cm~150cm. The horizontal heights of the second side wave makers 22 arranged on the two opposite side walls are different. The bottom of the sedimentation tank 10 includes adjacent silt sliding planes 12 and a mud collecting pit 13. A bottom wave maker 23 is provided above the silt sliding plane 12, and the distance between the bottom wave maker 23 and the silt sliding plane 12 is 5cm~15cm. The first side wave maker 21 and the second side wave maker 22 are arranged on the side wall of the sedimentation tank 10 in the longitudinal direction. The first side wave maker 21, the second side wave maker 22 and the bottom wave maker 23 can form the same circulation direction in the sedimentation tank 10, for example, forming a clockwise circulation or a counterclockwise circulation. The wave-making heads of the first side wave maker 21, the second side wave maker 22 and the bottom wave maker 23 are all rotatable structures, that is, the wave-making direction of each wave maker can be adjusted. During the circulation process, silt and sand gradually accumulate on the silt sliding plane 12, and the oil film continues to accumulate and increase on the water surface. Under the action of the circulation, the silt and sand gradually enter the mud collecting pit 13. An oil film extraction port 14 is provided on the side of the sedimentation tank 10. The distance between the oil film extraction port 14 and the water surface is 0 cm to 5 cm. The oil film extraction port 14 can be connected to an oil film filtering device. After the water on the surface of the sedimentation tank 10 enters the oil film extraction port 14, the oil film can be gradually processed and filtered out. The oil film in this application includes grease and some suspended pollutants suspended on the water surface.

[0029] Figure 2 The figure shows a schematic diagram of the steps of a method for separating and treating oil sludge in a sewage sedimentation tank according to another embodiment of the present application. The method for separating and treating oil sludge in a sewage sedimentation tank includes:

[0030] Step 110: Control the first side wave maker to generate waves horizontally at a first preset power, control the second side wave maker to generate waves along the wall of the sedimentation tank at a second preset power, and control the bottom wave maker to generate waves along the bottom of the sedimentation tank at a third preset power.

[0031] Step 120: Obtain an average thickness of the oil film on the water surface of the sedimentation tank, and obtain an average thickness of the silt on the silt sliding plane.

[0032] Step 130: If the average thickness of the oil film is greater than or equal to the first preset thickness of the oil film and the average thickness of the silt is less than the first preset thickness of the silt, the first side wave maker is controlled to generate waves in the horizontal direction and increase the power, the second side wave maker is controlled to generate waves along the wall of the sedimentation tank and reduce the power, and the bottom wave maker is controlled to generate waves along the bottom of the sedimentation tank and reduce the power.

[0033] In this step, if the average oil film thickness is greater than or equal to the first preset oil film thickness, the oil film is too thick. By increasing the power of the first side wave generator, the surface flow velocity is increased, thereby improving the efficiency of oil film removal on the water surface. Simultaneously, by reducing the power of the second side wave generator and the bottom wave generator, the flow velocity below the water surface is reduced. This prevents more oil film from migrating to the water surface, resulting in excessive accumulation of oil film on the water surface and inability to promptly treat the oil film. Failure to promptly treat the oil film could result in a large amount of oil film on the water surface migrating to the water below.

[0034] Step 140: If the average oil film thickness is less than the first preset oil film thickness and the average sludge thickness is greater than or equal to the first preset sludge thickness, the second side wave maker is controlled to stop generating waves, and the bottom wave maker is controlled to generate waves along the bottom surface of the sedimentation tank and increase power.

[0035] In this step, if the average oil film thickness is less than the first preset oil film thickness, the oil film is relatively thin. Meanwhile, if the average sludge thickness is greater than or equal to the first preset sludge thickness, the pool bottom sludge is relatively thick. Increasing the bottom flow velocity increases the rate at which silt enters the sludge collection pit, thereby improving silt treatment efficiency and accelerating the accumulation of oil and fat in the water toward the surface. Stopping the second side wave generator can reduce the velocity of the mid-layer water flow and, to a certain extent, prevent the suction of bottom silt. The first side wave generator can maintain normal operation at the first preset power to promote surface water flow and thereby treat the oil film.

[0036] Step 150: If the average thickness of the oil film is greater than or equal to the first preset thickness of the oil film and the average thickness of the silt is greater than or equal to the first preset thickness of the silt, the first side wave maker is controlled to generate waves in a horizontal direction and increase the power, the bottom wave maker is controlled to generate waves along the bottom surface of the sedimentation tank and increase the power, and the second side wave maker is controlled to generate waves in a direction different from the wall.

[0037] In this step, if the average oil film thickness is greater than or equal to the first preset oil film thickness, the oil film is relatively thick; if the average sludge thickness is greater than or equal to the first preset sludge thickness, the sludge is relatively thick. Simultaneously, surface and bottom flow rates are increased to improve the efficiency of oil film and sludge and gravel treatment. The second side wave maker is controlled to rotate and generate waves in a direction different from the wall, for example, generating waves horizontally or at an angle of 0° to 10° between the wave generating direction of the second side wave maker and the horizontal direction. Figure 3 The figure shows a schematic diagram of forming two independent circulation loops in a sewage pool according to an embodiment. Figure 3 As shown, the second side wave makers 22 on both sides with different levels can form a flow fault in the middle of the water body to a certain extent. Figure 3The diagram roughly illustrates the division of the flow fault into two upper and lower circulations. The arrows indicate the direction of the circulation. An independent circulation loop is formed above the flow fault, and an independent circulation loop is formed below the flow fault. This can reduce the amount of oil film on the water surface migrating to the bottom of the water, and also reduce the amount of sediment on the bottom of the water surface migrating to the water surface, thereby quickly dealing with the oil film on the water surface and the sediment on the bottom of the water respectively.

[0038] Step 160: If the average thickness of the oil film is less than the first preset thickness of the oil film and the average thickness of the silt is less than the first preset thickness of the silt, the first side wave maker is controlled to generate waves in the horizontal direction and increase the power, the second side wave maker is controlled to generate waves along the wall of the sedimentation tank and increase the power, and the bottom wave maker is controlled to generate waves along the bottom surface of the sedimentation tank and increase the power.

[0039] In this step, if the average thickness of the oil film is less than the first preset thickness of the oil film and the average thickness of the silt is less than the first preset thickness of the silt, it means that the oil film and the silt are both thin. A large circulation can be formed by the first side wave maker, the second side wave maker and the bottom wave maker to increase the accumulation speed of the oil film on the water surface and the accumulation speed of the silt and sand on the water bottom.

[0040] When used, this embodiment can achieve efficient separation and treatment of oil film and sludge in wastewater. The first side wave maker, the second side wave maker, and the bottom wave maker can work together to form a unified circulation direction, promoting the separation of pollutants in wastewater. By adjusting the power and direction of the wave makers, the water flow can be dynamically adjusted according to the actual thickness of the oil film and sludge to improve removal efficiency. Specifically, when the oil film is thick and the sludge is thin, the surface flow rate is increased to improve the oil film removal efficiency; when the sludge is abundant and the oil film is thick, the bottom flow rate is increased to improve the sediment removal efficiency. When both the oil film and sludge are thick, by adjusting the direction and power of the second side wave maker, a flow fault can be formed in the middle of the water body, reducing the migration of the oil film to the bottom and the suspension of sediment to the surface, thereby independently treating the oil film and sludge. When both the oil film and sludge are thin, by increasing the power of all wave makers, a large circulation is formed, increasing the accumulation rate of the oil film and sludge, thereby improving overall treatment efficiency.

[0041] Specifically, the preset first oil film thickness and the preset first sludge thickness can be set based on the actual size of the sewage tank or based on expert experience. For example, for a 10-meter-long sewage tank, the preset first oil film thickness can be set to a value between 3cm and 6cm, and the preset first sludge thickness can be set to a value between 5cm and 10cm.

[0042] In one embodiment, referring to Figure 1 The number of the first side wave makers 21 is multiple, the number of the second side wave makers 22 is multiple, the number of the bottom wave makers 23 is multiple, and the multiple bottom wave makers 23 are evenly arranged along the length direction of the silt sliding plane 12.

[0043] Figure 4 FIG. 1 is a schematic diagram of the steps of a method for calculating the average thickness of an oil film according to another embodiment of the present application. Figure 4 As shown, obtaining the average thickness of the oil film on the water surface of the sedimentation tank in step 120 includes:

[0044] Step 1201: Acquire an image of the oil film on the water surface of the sedimentation tank.

[0045] Step 1202: Set the water level reference height of the sedimentation tank.

[0046] Step 1203: Calculate the thickness of the oil film at each position of the water surface oil film according to the depth information of the water surface oil film image and the water surface reference height.

[0047] Step 1204 : uniformly sample the oil film thickness at multiple locations of the oil film on the water surface and calculate the average thickness of the oil film.

[0048] When this embodiment is used, the water surface of the sedimentation tank is photographed by a camera above the sedimentation tank to obtain an image of the oil film on the water surface. The camera can capture the depth information of the oil film at each position on the water surface, that is, the relative distance between each position of the oil film on the water surface and the camera. A water level gauge is set in the sedimentation tank to obtain the water storage data of the sedimentation tank. According to the water storage data, the water surface height in the sedimentation tank can be obtained, that is, the water surface reference height can be obtained. Then, according to the position of the camera, the relative distance between the water surface of the sedimentation tank and the camera can be converted. According to the relative distance between each position of the oil film on the water surface and the camera, and the relative distance between the water surface and the camera, the difference between the two is calculated, and the thickness of the oil film at each position on the water surface can be calculated. Due to the large amount of impurities in the sewage, the oil film and suspended matter on the water surface are unevenly distributed. Sampling the oil film thickness at multiple positions on the water surface oil film at equal intervals and uniformly and then calculating the average value can more objectively reflect the thickness information of the oil film on the water surface.

[0049] Figure 5 FIG. 1 is a schematic diagram of a method for calculating the average thickness of silt provided by another embodiment of the present application. Figure 5 As shown, Figure 5 As shown, obtaining the average thickness of the silt on the silt sliding plane in step 120 includes:

[0050] Step 1211: Acquire an image of the bottom sludge of the sedimentation tank.

[0051] Step 1212: Set the bottom reference height of the sedimentation tank.

[0052] Step 1213: Calculate the thickness of the bottom mud at each position according to the depth information of the bottom mud image and the bottom reference height.

[0053] Step 1214: uniformly sample the thickness of the bottom mud at multiple locations and calculate the average thickness of the mud.

[0054] When this embodiment is applied, a camera can be set at a position near the bottom of the sedimentation tank to shoot the bottom silt in the sedimentation tank and obtain an image of the bottom silt. The camera can capture the depth information of each position of the bottom silt, that is, the relative distance between each position of the bottom silt and the camera is obtained. According to the size information of the sedimentation tank, the bottom reference height is obtained, and then the relative distance between the bottom of the sedimentation tank and the camera can be converted according to the position of the camera. According to the relative distance between each position of the bottom silt and the camera, and the relative distance between the bottom of the sedimentation tank and the camera, the difference between the two is calculated, and the silt thickness at each position of the bottom silt can be calculated. Due to the large amount of impurities in the sewage, the silt and debris at the bottom of the sedimentation tank are unevenly distributed. Sampling the silt thickness at multiple positions on the bottom silt at equal intervals and evenly and then calculating the average value can more objectively reflect the thickness information of the bottom silt.

[0055] Figure 6 The figure shows a schematic diagram of a specific treatment method for a thick oil film and a thin sludge according to another embodiment of the present invention. Figure 6 As shown, step 130 includes:

[0056] Step 131: If the average oil film thickness is greater than or equal to the first preset oil film thickness and the average silt thickness is less than the first preset silt thickness, control the first side wave maker to increase power at a first increase rate, and control the bottom wave maker to decrease power at a second decrease rate.

[0057] In this embodiment, the power of the first side wave maker is slowly increased by the first increasing rate, which can avoid the generation of a large amount of turbulence due to excessive power increase. Similarly, the power of the bottom wave maker is slowly reduced by the second decreasing rate, which can avoid the generation of a large amount of turbulence due to excessive power change. Figure 1 The first side wave maker 21 on the left side creates waves horizontally to the right, the second side wave maker 22 on the right side creates waves downward along the wall, the bottom wave maker 23 creates waves horizontally to the left, and the second side wave maker 22 on the left side creates waves upward along the wall, thereby forming a large circulation loop. The first lifting rate is determined by the first preset power, and the two are proportional. The proportional coefficient can be set according to the concentration of the sewage. The second lifting rate is determined by the third preset power, and the two are proportional. The proportional coefficient can be set according to the concentration of the sewage.

[0058] Figure 7 The figure shows a schematic diagram of a specific treatment method for a thin oil film and thick sludge according to another embodiment of the present invention. Figure 7 As shown, step 140 includes:

[0059] Step 141: If the average oil film thickness is less than the first preset oil film thickness and the average silt thickness is greater than or equal to the first preset silt thickness, control the bottom wave maker to reduce power at a second reduction rate.

[0060] In this embodiment, the second reduction rate is used to slowly reduce the power of the bottom wave generator, thereby preventing excessive turbulence caused by rapid power changes. The second increase rate is determined by the third preset power, and the two are proportional. The proportional coefficient can be set according to the concentration of the sewage.

[0061] Figure 8 The figure shows a schematic diagram of the specific processing method steps for achieving two independent circulations when the oil film is thick and the sludge is thick, provided by another embodiment of the present application. In one embodiment, Figure 8 As shown, step 150 includes:

[0062] Step 151: If the average oil film thickness is greater than or equal to the first preset oil film thickness and the average sludge thickness is greater than or equal to the first preset sludge thickness, control the wave-making directions of the second side wave makers on the two opposite side walls to be opposite, so as to form two upper and lower circulating flows in the sedimentation tank.

[0063] Step 152: Control the first side wave maker to increase power at a first increase rate, and control the bottom wave maker to increase power at a second increase rate.

[0064] In this embodiment, refer to Figure 3 Since the second side wave makers 22 arranged on the two side walls have different levels, Figure 3 The second side wave maker 22 on the right side is higher than the second side wave maker 22 on the left side. The second side wave maker 22 on the right side creates waves horizontally to the left, while the first side wave maker 21 on the left side creates waves horizontally to the right, thereby forming an independent circulating current above. The second side wave maker 22 on the left side creates waves horizontally to the right, while the bottom wave maker 23 creates waves horizontally to the left, thereby forming a circulating current below. The two independent circulating currents can form a flow fault, preventing the oil film on the water surface from migrating to the bottom and the silt at the bottom from migrating to the water surface, allowing the upper circulating current to treat the oil film alone, and the lower circulating current to treat the silt alone. The first lifting rate is determined according to the first preset power, and the two are proportional. The proportional coefficient can be set according to the concentration of the sewage. The second lifting rate is determined according to the third preset power, and the two are proportional. The proportional coefficient can be set according to the concentration of the sewage.

[0065] In some embodiments, the wave-making direction of the second side wave maker is fine-tuned to form a small angle with the horizontal plane to better form two independent circulating currents. Specifically, the second side wave maker 22 on the left side makes waves toward the lower right, and its direction angle is 1° to 3° with the horizontal plane; the second side wave maker 22 on the right side makes waves toward the upper left, and its direction angle is 1° to 3° with the horizontal plane.

[0066] Figure 9 The figure shows a schematic diagram of a specific processing method for swing-type wave making when the oil film is thick and the silt is thick, provided by another embodiment of the present application. In one embodiment, as Figure 9 As shown, step 150 includes:

[0067] Step 153 : If the average oil film thickness is greater than or equal to the first preset oil film thickness and the average sludge thickness is greater than or equal to the first preset sludge thickness, control the second side wave maker to swing toward the opposite sidewall to generate waves.

[0068] In this embodiment, by swinging the second side wave maker to create waves, a wave-like flow layer can be formed in the middle of the sewage pool, separating the upper water body and the lower water body to a certain extent, preventing the oil film on the water surface from migrating to the bottom of the water and the silt at the bottom from migrating to the water surface, so that the upper circulating current can treat the oil film alone, and the lower circulating current can treat the silt alone.

[0069] Figure 10 The figure shows a schematic diagram of a specific treatment method for a thin oil film and thin sludge according to another embodiment of the present application. Figure 10 As shown, step 160 includes:

[0070] Step 161: If the average oil film thickness is less than the first preset oil film thickness and the average silt thickness is less than the first preset silt thickness, control the first side wave maker to increase power at a first increase rate, control the bottom wave maker to increase power at a second increase rate, and control the second side wave maker to increase power at a third increase rate.

[0071] In this embodiment, the power of the first side wave maker, the second side wave maker, and the bottom wave maker is gradually increased to avoid turbulence caused by sudden power changes. Figure 1The first side wave maker 21 on the left side creates waves horizontally to the right, the second side wave maker 22 on the right side creates waves downward along the wall, the bottom wave maker 23 creates waves horizontally to the left, and the second side wave maker 22 on the left side creates waves upward along the wall, thereby forming a large circulation loop. The first lifting rate is determined according to the first preset power, and the two are proportional. The proportional coefficient can be set according to the concentration of the sewage. The second lifting rate is determined according to the third preset power, and the two are proportional. The proportional coefficient can be set according to the concentration of the sewage. The third lifting rate is determined according to the second preset power, and the two are proportional. The proportional coefficient can be set according to the concentration of the sewage.

[0072] The present application also provides an oil sludge separation and treatment system for a sewage sedimentation tank, wherein a first side wave maker immersed in sewage is provided on one side wall of the sedimentation tank, and a second side wave maker immersed in sewage is provided on two opposite side walls of the sedimentation tank, the first side wave maker is 5 cm to 15 cm away from the water surface, the second side wave maker is 50 cm to 150 cm away from the water surface, and the second side wave makers are arranged at different heights on the two opposite side walls. The bottom of the sedimentation tank 10 includes adjacent sludge sliding planes and a sludge collection pit, and the bottom wave maker is provided on the sludge sliding plane; an oil film extraction port is provided on the side of the sedimentation tank 10, and the distance between the oil film extraction port and the water surface is 0 cm to 5 cm;

[0073] Figure 11 FIG2 is a schematic diagram illustrating the system structure of an oil sludge separation and treatment system for a sewage sedimentation tank according to an embodiment of the present application. The oil sludge separation and treatment system for a sewage sedimentation tank includes a first wave-generating control module 101, a data acquisition module 102, a second wave-generating control module 103, a third wave-generating control module 104, a fourth wave-generating control module 105, and a fifth wave-generating control module 106.

[0074] The first wave-making control module 101 is configured to: control the first side wave maker to generate waves in the horizontal direction at a first preset power, control the second side wave maker to generate waves along the wall of the sedimentation tank at a second preset power, and control the bottom wave maker to generate waves along the bottom surface of the sedimentation tank at a third preset power;

[0075] The data acquisition module 102 is configured to: obtain the average thickness of the oil film on the water surface of the sedimentation tank, and obtain the average thickness of the silt on the silt sliding plane;

[0076] The second wave-making control module 103 is communicatively connected to the first wave-making control module 101 and the data acquisition module 102, respectively. The second wave-making control module 103 is configured to: if the average thickness of the oil film is greater than or equal to the first preset oil film thickness and the average thickness of the silt is less than the first preset silt thickness, control the first side wave maker to generate waves in the horizontal direction and increase the power, control the second side wave maker to generate waves along the wall of the sedimentation tank and reduce the power, and control the bottom wave maker to generate waves along the bottom surface of the sedimentation tank and reduce the power;

[0077] The third wave-making control module 104 is communicatively connected to the first wave-making control module 101 and the data acquisition module 102, and the third wave-making control module 104 is configured to: if the average thickness of the oil film is less than the first preset thickness of the oil film and the average thickness of the silt is greater than or equal to the first preset thickness of the silt, control the second side wave maker to stop making waves, and control the bottom wave maker to make waves along the bottom surface of the sedimentation tank and increase the power;

[0078] The fourth wave-making control module 105 is communicatively connected to the first wave-making control module 101 and the data acquisition module 102, respectively. The fourth wave-making control module 105 is configured as follows: if the average thickness of the oil film is greater than or equal to the first preset thickness of the oil film and the average thickness of the silt is greater than or equal to the first preset thickness of the silt, then the first side wave maker is controlled to make waves in the horizontal direction and increase the power, the bottom wave maker is controlled to make waves along the bottom surface of the sedimentation tank and increase the power, and the second side wave maker is controlled to make waves in a direction different from the wall.

[0079] The fifth wave-making control module 106 is communicatively connected to the first wave-making control module 101 and the data acquisition module 102, respectively. The fifth wave-making control module 106 is configured as follows: if the average thickness of the oil film is less than the first preset thickness of the oil film and the average thickness of the silt is less than the first preset thickness of the silt, then the first side wave maker is controlled to make waves in the horizontal direction and increase the power, the second side wave maker is controlled to make waves along the wall of the sedimentation tank and increase the power, and the bottom wave maker is controlled to make waves along the bottom surface of the sedimentation tank and increase the power.

[0080] The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in this application are merely illustrative and not restrictive, and it should not be assumed that these advantages, strengths, and effects are required of each embodiment of this application. In addition, the specific details disclosed above are merely illustrative and facilitating understanding, and are not restrictive. The above details do not limit this application to necessarily being implemented using the above specific details.

[0081] The block diagrams of the devices, devices, equipment, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, devices, equipment, and systems can be connected, arranged, or configured in any manner. Words such as "include," "comprise," "have," and the like are open-ended words, meaning "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0082] It should also be noted that in the apparatus, device, and method of the present application, each component or each step can be decomposed and / or recombined, and such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0083] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to be applied in the widest sense consistent with the principles and novel features of the present invention.

[0084] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. The oil sludge separation treatment method applied to sewage sedimentation tank is characterized by: A first side wave maker immersed in sewage is provided on one side wall of the sedimentation tank, and a second side wave maker immersed in sewage is provided on two opposite side walls of the sedimentation tank. The distance between the first side wave maker and the water surface is 5 cm to 15 cm, and the distance between the second side wave maker and the water surface is 50 cm to 150 cm. The second side wave makers arranged on the two opposite side walls are at different horizontal heights. The bottom of the sedimentation tank includes adjacent silt sliding planes and sludge collection pits. A bottom wave maker is provided above the silt sliding plane, and the distance between the bottom wave maker and the silt sliding plane is 5 cm to 15 cm. An oil film extraction port is provided on the side of the sedimentation tank, and the distance between the oil film extraction port and the water surface is 0 cm to 5 cm. The oil sludge separation and treatment method applied to the sewage sedimentation tank includes: Controlling the first side wave maker to generate waves at a first preset power in a horizontal direction, controlling the second side wave maker to generate waves at a second preset power along the wall of the sedimentation tank, and controlling the bottom wave maker to generate waves at a third preset power along the bottom surface of the sedimentation tank; Obtaining an average thickness of the oil film on the water surface of the sedimentation tank and an average thickness of the silt on the silt sliding plane; If the average thickness of the oil film is greater than or equal to a first preset thickness of the oil film and the average thickness of the sludge is less than the first preset thickness of the sludge, the first side wave maker is controlled to generate waves in a horizontal direction and increase power, the second side wave maker is controlled to generate waves along the wall of the sedimentation tank and reduce power, and the bottom wave maker is controlled to generate waves along the bottom surface of the sedimentation tank and reduce power; If the average thickness of the oil film is less than the first preset thickness of the oil film and the average thickness of the sludge is greater than or equal to the first preset thickness of the sludge, the second side wave maker is controlled to stop generating waves, and the bottom wave maker is controlled to generate waves along the bottom surface of the sedimentation tank and increase power; If the average thickness of the oil film is greater than or equal to a first preset oil film thickness and the average thickness of the sludge is greater than or equal to the first preset sludge thickness, controlling the first side wave maker to generate waves in a horizontal direction and increase power, controlling the bottom wave maker to generate waves along the bottom surface of the sedimentation tank and increase power, and controlling the second side wave maker to generate waves in a direction different from the wall surface; and If the average thickness of the oil film is less than the first preset thickness of the oil film and the average thickness of the sludge is less than the first preset thickness of the sludge, the first side wave maker is controlled to generate waves in a horizontal direction and increase the power, the second side wave maker is controlled to generate waves along the wall of the sedimentation tank and increase the power, and the bottom wave maker is controlled to generate waves along the bottom surface of the sedimentation tank and increase the power.

2. The oil sludge separation and treatment method applied to a sewage sedimentation tank according to claim 1, characterized in that: The number of the first side wave makers is multiple; The number of the second side wave makers is multiple; There are multiple bottom wave makers, and the multiple bottom wave makers are evenly arranged along the length direction of the silt sliding plane.

3. The oil sludge separation and treatment method applied to a sewage sedimentation tank according to claim 1, characterized in that: The obtaining of the average thickness of the oil film on the water surface of the sedimentation tank comprises: Acquire an oil film image on the water surface of the sedimentation tank; Setting a water level reference height of the sedimentation tank; Calculating the thickness of the oil film at each position of the water surface oil film according to the depth information of the water surface oil film image and the water surface reference height; and The thickness of the oil film at multiple locations of the oil film on the water surface is uniformly sampled and the average thickness of the oil film is calculated.

4. The oil sludge separation and treatment method applied to a sewage sedimentation tank according to claim 1, characterized in that: The obtaining of the average thickness of the silt on the silt sliding plane comprises: Acquiring a bottom sludge image of the sedimentation tank; Setting the bottom reference height of the sedimentation tank; Calculating the thickness of the bottom mud at various locations according to the depth information of the bottom mud image and the bottom reference height; and The thickness of the bottom mud at multiple locations is uniformly sampled and the average thickness of the mud is calculated.

5. The oil sludge separation and treatment method applied to a sewage sedimentation tank according to claim 1, characterized in that: If the average thickness of the oil film is greater than or equal to a first preset thickness of the oil film and the average thickness of the sludge is less than a first preset thickness of the sludge, controlling the first side wave maker to generate waves in a horizontal direction and increase power, controlling the second side wave maker to generate waves along the wall of the sedimentation tank and reduce power, and controlling the bottom wave maker to generate waves along the bottom surface of the sedimentation tank and reduce power includes: If the average oil film thickness is greater than or equal to the first preset oil film thickness and the average sludge thickness is less than the first preset sludge thickness, the first side wave maker is controlled to increase power at a first increase rate, and the bottom wave maker is controlled to reduce power at a second reduction rate.

6. The oil sludge separation and treatment method applied to a sewage sedimentation tank according to claim 1, characterized in that: If the average thickness of the oil film is less than the first preset thickness of the oil film and the average thickness of the sludge is greater than or equal to the first preset thickness of the sludge, controlling the second side wave maker to stop generating waves and controlling the bottom wave maker to generate waves along the bottom surface of the sedimentation tank and increase power includes: If the average oil film thickness is less than the first preset oil film thickness and the average sludge thickness is greater than or equal to the first preset sludge thickness, the bottom wave maker is controlled to reduce power at a second reduction rate.

7. The oil sludge separation and treatment method applied to a sewage sedimentation tank according to claim 1, characterized in that: If the average thickness of the oil film is greater than or equal to the first preset thickness of the oil film and the average thickness of the sludge is greater than or equal to the first preset thickness of the sludge, controlling the first side wave maker to generate waves in a horizontal direction and increasing power, controlling the bottom wave maker to generate waves along the bottom surface of the sedimentation tank and increasing power, and controlling the second side wave maker to generate waves in a direction different from the wall surface includes: If the average thickness of the oil film is greater than or equal to the first preset oil film thickness and the average thickness of the sludge is greater than or equal to the first preset sludge thickness, controlling the wave-making directions of the second side wave makers on two opposite side walls to be opposite to each other, so as to form two upper and lower circulating flows in the sedimentation tank; The first side wave maker is controlled to increase power at a first increase rate, and the bottom wave maker is controlled to increase power at a second increase rate.

8. The oil sludge separation and treatment method applied to a sewage sedimentation tank according to claim 1, characterized in that: If the average thickness of the oil film is greater than or equal to the first preset thickness of the oil film and the average thickness of the sludge is greater than or equal to the first preset thickness of the sludge, controlling the first side wave maker to generate waves in a horizontal direction and increasing power, controlling the bottom wave maker to generate waves along the bottom surface of the sedimentation tank and increasing power, and controlling the second side wave maker to generate waves in a direction different from the wall surface includes: If the average thickness of the oil film is greater than or equal to the first preset thickness of the oil film and the average thickness of the sludge is greater than or equal to the first preset thickness of the sludge, the second side wave maker is controlled to swing toward the opposite side wall to generate waves.

9. The oil sludge separation and treatment method applied to a sewage sedimentation tank according to claim 1, characterized in that: If the average thickness of the oil film is less than the first preset thickness of the oil film and the average thickness of the sludge is less than the first preset thickness of the sludge, controlling the first side wave maker to generate waves in a horizontal direction and increasing power, controlling the second side wave maker to generate waves along the wall of the sedimentation tank and increasing power, and controlling the bottom wave maker to generate waves along the bottom surface of the sedimentation tank and increasing power includes: If the average thickness of the oil film is less than the first preset oil film thickness and the average thickness of the sludge is less than the first preset sludge thickness, the first side wave maker is controlled to increase power at a first increasing rate, the bottom wave maker is controlled to increase power at a second increasing rate, and the second side wave maker is controlled to increase power at a third increasing rate.

10. The oil sludge separation and treatment system used in sewage sedimentation tanks is characterized by: A first side wave maker immersed in sewage is provided on one side wall of the sedimentation tank, and a second side wave maker immersed in sewage is provided on two opposite side walls of the sedimentation tank. The distance between the first side wave maker and the water surface is 5 cm to 15 cm, and the distance between the second side wave maker and the water surface is 50 cm to 150 cm. The second side wave makers arranged on the two opposite side walls are at different horizontal heights. The bottom of the sedimentation tank includes adjacent silt sliding planes and sludge collection pits. A bottom wave maker is provided above the silt sliding plane, and the distance between the bottom wave maker and the silt sliding plane is 5 cm to 15 cm. An oil film extraction port is provided on the side of the sedimentation tank, and the distance between the oil film extraction port and the water surface is 0 cm to 5 cm. The oil sludge separation and treatment system applied to the sewage sedimentation tank includes: a first wave-making control module, configured to: control the first side wave maker to generate waves in a horizontal direction at a first preset power, control the second side wave maker to generate waves along the wall of the sedimentation tank at a second preset power, and control the bottom wave maker to generate waves along the bottom surface of the sedimentation tank at a third preset power; The data acquisition module is configured to: obtain an average thickness of the oil film on the water surface of the sedimentation tank and an average thickness of the silt on the silt sliding plane; a second wave-making control module, communicatively connected to the first wave-making control module and the data acquisition module, respectively, the second wave-making control module being configured to: if the average thickness of the oil film is greater than or equal to a first preset oil film thickness and the average thickness of the silt is less than a first preset silt thickness, control the first side wave maker to generate waves in a horizontal direction and increase power, control the second side wave maker to generate waves along a wall surface of the sedimentation tank and reduce power, and control the bottom wave maker to generate waves along a bottom surface of the sedimentation tank and reduce power; a third wave-making control module, communicatively connected to the first wave-making control module and the data acquisition module, wherein the third wave-making control module is configured to: if the average thickness of the oil film is less than the first preset oil film thickness and the average thickness of the silt is greater than or equal to the first preset silt thickness, control the second side wave maker to stop generating waves, and control the bottom wave maker to generate waves along the bottom surface of the sedimentation tank and increase power; a fourth wave-making control module, communicatively connected to the first wave-making control module and the data acquisition module, the fourth wave-making control module being configured to: if the average thickness of the oil film is greater than or equal to a first preset oil film thickness and the average thickness of the sludge is greater than or equal to the first preset sludge thickness, control the first side wave maker to generate waves in a horizontal direction and increase power, control the bottom wave maker to generate waves along the bottom surface of the sedimentation tank and increase power, and control the second side wave maker to generate waves in a direction different from the wall surface; and The fifth wave-making control module is communicatively connected to the first wave-making control module and the data acquisition module respectively. The fifth wave-making control module is configured as follows: if the average thickness of the oil film is less than the first preset thickness of the oil film and the average thickness of the silt is less than the first preset thickness of the silt, then the first side wave maker is controlled to make waves in a horizontal direction and increase the power, the second side wave maker is controlled to make waves along the wall of the sedimentation tank and increase the power, and the bottom wave maker is controlled to make waves along the bottom surface of the sedimentation tank and increase the power.

Images