River and black and odorous water biological purification device

Abstract

The utility model relates to water body purification device, concretely relates to a river and black and odorous water body biological purification device. In order to solve the insufficient place of water body biological purification device purification effect in prior art, the utility model discloses the installation frame that is arranged in water body, the protective net that is arranged in the outer periphery of installation frame, the biological filler that is arranged in installation frame and the fixed assembly and flow guide component of connecting installation frame, the protective net is set up as porous protective net, the inside biological reaction area of installation frame is set up, and the biological filler is arranged in the biological reaction area, the flow guide component includes the expansion flow guide plate that is arranged respectively in the one side or both sides of installation frame near water body upstream, and the wide included angle of expansion flow guide plate and installation frame is obtuse angle, and the width of installation frame is perpendicular to the water flow direction.

Description

Technical Field

[0001] This utility model relates to a water purification device, specifically a biological purification device for rivers and black and odorous water bodies. Background Technology

[0002] With the development of ecological civilization and the improvement of living standards, people have increasingly higher requirements for their living environment. Among these, the quality of surface water is of great concern. However, black and odorous water bodies still exist in many cities and rural areas due to their high pollutant concentrations, difficulty in treatment, and high technical requirements.

[0003] Chinese patent CN212640073U discloses a suspended bioreactor whose reaction tank uses fluidized bed packing. Due to the fluidization characteristics of the fluidized bed packing, it tends to accumulate downstream of the water flow, making it difficult to distribute evenly within the reaction tank and severely affecting the biological reaction effect. Furthermore, to reserve sufficient fluidization space for the fluidized bed packing, 60%–90% of the space needs to be left empty, and the packing volume is generally only 10%–40%, resulting in a lower amount of attached microorganisms and a lower purification effect. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing biological water purification devices, which have poor purification effects, and to provide a biological purification device for rivers and black and odorous water bodies.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A biological purification device for rivers and black and odorous water bodies is characterized by the following features: an installation frame disposed in the water body, a protective net disposed around the periphery of the installation frame, biological filler material disposed within the installation frame, and a fixing component and a flow guiding component connecting the installation frame; the protective net is a porous protective net; a biological reaction zone is set inside the installation frame, and the biological filler material is used to attach microorganisms and is disposed within the biological reaction zone; the fixing component is used to connect the installation frame to the bottom of the water body and / or a fixed platform; the flow guiding component includes extended flow guiding plates disposed on one or both sides of the installation frame near the upstream of the water body, the angle between the extended flow guiding plates and the width of the installation frame is an obtuse angle, and the width of the installation frame is perpendicular to the water flow direction.

[0007] Furthermore, it also includes a flow propulsion assembly, which includes a bubble generator and an inclined plate disposed on the upstream side of the mounting frame near the water body;

[0008] The upper end of the inclined plate is connected to the upper end of the mounting frame, and the lower end is away from the mounting frame.

[0009] The output end of the bubble generator is located at the lower end of the inclined plate and on the side of the inclined plate close to the mounting frame. It is used to generate bubbles and drive the water to flow along the inclined plate toward the mounting frame.

[0010] Furthermore, it also includes an aeration system and a floating component, the aeration system including a blower mounted on top of the mounting frame and an aeration device connected to the first outlet of the blower;

[0011] The floating component is connected to the mounting frame to make the mounting frame float on the water surface, so as to ensure that the blower is on the water surface.

[0012] The installation frame includes an upper space and a lower space. The aeration device is located in the lower space, and the bioreactor zone is located in the upper space. The bioreactor zone is filled with biofiller.

[0013] The second outlet of the blower is connected to the input of the bubble generator.

[0014] Furthermore, it also includes a power supply assembly connected to the blower, which is configured as a solar panel, a small wind power generation device or connected to the power grid, and the blower is configured as a loop blower, a vortex blower or a Roots blower.

[0015] The blower is equipped with a protective cover;

[0016] The aeration device is configured as an aerator or an aeration pipe;

[0017] The floating component is configured as a float or a buoy.

[0018] Furthermore, the aperture of the protective net is 5–20 mm;

[0019] The width of the extended guide plate is 5% to 100% of the width of the mounting frame;

[0020] The included angle between the extended guide plate and the mounting frame is 110° to 155°.

[0021] The angle between the inclined plate and the horizontal plane is 20° to 75°.

[0022] Furthermore, the angle between the extended guide plate and the width of the mounting frame is 135°, and the width is 50% of the width of the mounting frame;

[0023] The mesh size of the protective net is 14mm;

[0024] The angle between the inclined plate and the horizontal plane is 45°.

[0025] Furthermore, the biological filler includes one or more combinations of ceramsite, granular activated carbon, stereoelastic filler, fiber bundle filler, and PVA gel;

[0026] The fixing components are configured as fixing anchors and / or fixing rods.

[0027] Furthermore, it also includes a propulsion assembly, which includes a submersible thruster disposed upstream or downstream of the mounting frame.

[0028] The beneficial effects of this utility model are:

[0029] 1. This utility model simultaneously possesses biological purification and flow diversion functions. The flow diversion component increases the amount of water entering the biological reaction zone, resulting in better purification effects on rivers and black and odorous water bodies. It increases the overall proportion of purified water, enhances the treatment capacity of the biological purification device for rivers and black and odorous water bodies, and significantly improves the overall purification efficiency of the river. The treatment effect is far superior to existing ecological governance technologies, conventional purification equipment, or microbial technologies. At the same time, it can correspondingly reduce the number of purification devices required and the investment cost.

[0030] 2. This invention incorporates a biological packing material to adsorb and immobilize highly efficient microorganisms, preventing the loss of microorganisms with water as is common in conventional inoculation techniques, thus ensuring the long-term stable function of these microorganisms. Furthermore, by filling the biological reaction zone with the biological packing material, the biomass of the biological purification device for rivers and black and odorous water bodies is effectively increased, thereby enhancing the water purification effect.

[0031] 3. The propulsion component of this invention, when located in a water body with slow flow, can accelerate the flow of water, promoting the rapid flow of unpurified water through the purification device, thereby improving the overall purification efficiency of the water body. Furthermore, the propulsion component adopts a bubble propulsion method, enhancing the oxygen exchange between the water and the air, increasing the dissolved oxygen (DO) concentration in the water body, and strengthening the water body's self-purification capacity.

[0032] 4. This utility model integrates multiple functions such as flow promotion, flow guidance, and biological purification, and has a very high river water purification efficiency. It can be selected whether to install an aeration system according to needs, and multiple river channels and black and odorous water bodies can be flexibly combined for use. It is suitable for different processes and achieves efficient water purification. Attached Figure Description

[0033] Figure 1 This is a structural schematic diagram of an embodiment of the present invention (the floating component and the flow guiding component are not shown);

[0034] Figure 2 This is a schematic diagram of the propulsion component in an embodiment of this utility model;

[0035] Figure 3 This is a schematic diagram of the flow guiding component in an embodiment of this utility model;

[0036] Explanation of reference numerals in the attached figures:

[0037] 1-Installation frame, 2-Fixing component, 3-Aeration device, 4-Bubble generator, 5-Blower, 6-Floating component, 7-Flow guiding component, 8-Flow propulsion component, 9-Bioreactor zone, 10-Protective cover, 11-Main structure, 12-Inclined plate. Detailed Implementation

[0038] The main pollutant indicators of eutrophication in river water include chemical oxygen demand (COD), five-day biological oxygen demand (BOD5), ammonia nitrogen (NH3-N), total nitrogen (TN), total phosphorus (TP), odor, and transparency. When these pollutant indicators reach a certain level, black and odorous water bodies are formed, characterized by high pollutant concentrations and low DO concentrations, resulting in severe odor and low transparency.

[0039] In view of the above characteristics, the biological purification device for rivers and black and odorous water bodies of this utility model includes a flow propulsion component 8, a flow guiding component 7, an installation frame 1, a protective net, high-efficiency microorganisms, biological filler, an aeration system, a fixing component 2, a floating component 6, etc. Figure 1 As shown. Among them, the installation frame 1, protective net, biological filler, and fixing components 2 constitute the main structure 11 of the biological purification device for river channels and black and odorous water bodies.

[0040] The mounting frame 1 is surrounded by a porous protective net to prevent aquatic plants, fallen leaves, floating debris, and other waste from entering. The mesh size of the protective net ranges from 5 to 20 mm, with 14 mm being the most common. High-efficiency microorganisms, biological carrier packing materials, and an aeration system are installed on the mounting frame 1.

[0041] Because rivers have the functions of water storage and flood discharge, purification devices cannot cover the entire river channel; they can only be placed in the middle or on both sides, resulting in some river water not flowing into the purification devices. To address this, this invention also includes a flow guiding component 7, specifically an extended flow guiding plate on one or both sides of the mounting frame 1 near the upstream direction of the water body. The angle between the extended flow guiding plate and the mounting frame 1 perpendicular to the water flow direction is an obtuse angle, typically set to 110°–155°, preferably 135°. The width of the extended flow guiding plate is approximately 5%–100% of the width of the mounting frame 1, with a common width being 50% of the width of the mounting frame 1. Figure 3 As shown, in this embodiment, extended guide plates are provided on both sides of the mounting frame 1. The guide component 7 can guide river water that would not normally enter the purification device into the purification device, increasing the proportion of river water purified and increasing the processing capacity of the purification device. This can save on the number of purification devices used and investment costs, while significantly improving the overall purification effect.

[0042] A bioreactor zone 9 is set within the mounting frame 1, and a biological carrier packing material is placed within the bioreactor zone 9, allowing highly efficient microorganisms to attach to the biological packing material carrier. The biological packing material can be one or a combination of various packing material forms such as ceramsite, granular activated carbon, three-dimensional elastic packing material, fiber bundle packing material, and polyvinyl alcohol (PVA) gel, and the biological packing material fills the entire bioreactor zone 9.

[0043] The internal space of the mounting frame 1 includes an upper space and a lower space, with the bioreactor zone 9 located in the upper space.

[0044] The aeration system includes an aeration device 3 and a blower 5. The blower 5 is located at the top of the mounting frame 1, and a protective cover 10 is installed on its outer side for rain protection. The aeration device 3 is located in the lower space of the mounting frame 1 and can utilize existing structures such as aerators or aeration pipes. In this embodiment, an aerator is used. The first outlet of the blower 5 is connected to the aerator via a duct, and the aerator is positioned at the bottom corresponding to the biological carrier packing. The blower 5 can be a loop blower, vortex blower, or Roots blower, and the power supply can be provided by solar panels, small wind power generation, or grid power.

[0045] To ensure that this invention always floats on the surface of the water and that the blower 5 remains on the water surface, a floating assembly 6 is provided around the mounting frame 1. The floating assembly 6 can be a float plate or a float cylinder. In other embodiments of this invention, the float plate or float cylinder can also be located on the upper part of the mounting frame 1.

[0046] The fixing component 2 can be flexibly set according to the water flow velocity. When the water flow velocity is low or not flowing, the fixing component 2 can be set with only 3 to 4 fixing anchors connected to the bottom or side of the river. When the water flow velocity is high, several fixing rods can be set on the basis of the fixing anchors, or the fixing rods can be used alone or connected to the surrounding fixed platforms.

[0047] In this embodiment, before the biological purification device for rivers and black and odorous water bodies is put into use, it is soaked in a pool filled with highly efficient microorganisms for a period of time, usually 4 weeks, to allow the highly efficient microorganisms to fully adsorb and fix onto the biological packing material, forming immobilized microorganisms. The soaking time can be extended or shortened as needed, depending on the type of packing material used. The highly efficient microorganisms immobilized on the surface of the biological packing material are in an aerobic state, while the interior of the packing material is in an anaerobic state due to the mass transfer resistance of oxygen. Therefore, the aerobic environment on the surface of the packing material can rapidly reduce pollutant indicators such as COD, BOD5, NH3-N, and sulfides in the river water, while the anaerobic environment inside the packing material can rapidly convert NO3-N into N2, achieving complete denitrification and thus reducing the total nitrogen (TN) index.

[0048] In other embodiments, the aeration system can be omitted depending on the process requirements, and the system can be used as an anaerobic, anoxic, or anaerobic ammonia oxidation bioreactor.

[0049] Because some urban and rural rivers have slow water flow and poor self-purification capabilities, this invention also includes a flow-propelling component 8 to prevent them from becoming stagnant and to enhance water flow. For example... Figure 2 As shown, the flow propulsion assembly 8 employs bubble propulsion, including an inclined plate 12 positioned on the upstream side of the mounting frame 1 near the water body, and a bubble generator 4 with its output end located at the lower end of the inclined plate 12 and close to the mounting frame 1. The upper end of the inclined plate 12 is connected to the upper end of the mounting frame 1, while the lower end is away from the mounting frame 1. The angle between the inclined plate 12 and the horizontal plane is 20° to 75°, preferably 45°. The input end of the bubble generator 4 is connected to the second outlet of the blower 5. After the generated bubbles enter the water body, they automatically rise under the action of buoyancy. Due to the restriction of the inclined plate 12, the bubbles only move obliquely upward along the side of the inclined plate 12 closest to the mounting frame 1, pushing the upper water body obliquely upward towards the mounting frame 1. Simultaneously, due to the air lift effect, the water at the bottom of the inclined plate 12 follows the bubbles obliquely upward, moving along the water flow direction towards the mounting frame 1. This invention combines the rising process of the bubbles with the inclined plate 12 to propel the water body towards the mounting frame 1, thereby promoting water flow, accelerating gas exchange between the water and air, and increasing dissolved oxygen in the river.

[0050] The propulsion component 8 of this utility model can also be in the form of a submersible propeller. The submersible propeller is installed upstream or downstream of the mounting frame 1. The impeller is driven to rotate by the submersible motor, which pushes the unpurified water to flow quickly through the purification device, so that the unpurified river water upstream of the purification device is purified, which greatly accelerates the overall purification efficiency of the river.

[0051] In this embodiment, a water biological purification device with multiple functions, including flow guidance, flow propulsion, high biomass, and simultaneous oxygenation, was designed based on the characteristics of black and odorous water bodies. This device is used for the efficient purification of rivers and black and odorous water bodies. This invention can also be widely used in the purification and treatment of various surface waters such as rivers, lakes, and ponds, or in wastewater treatment. Flow propulsion components, aeration systems, and floating components can be flexibly configured according to process requirements.

[0052] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model.

Claims

1. A biological purification device for rivers and black and odorous water bodies, characterized in that: It includes an installation frame (1) set in the water body, a protective net set around the outside of the installation frame (1), biological filler set in the installation frame (1), and a fixing component (2) and a flow guiding component (7) connecting the installation frame (1). The protective net is configured as a porous protective net; The installation frame (1) is provided with a bioreactor zone (9), and the biofiller is used to attach microorganisms and is set in the bioreactor zone (9); The fixing component (2) is used to connect the mounting frame (1) to the bottom of the water body and / or the fixed platform; The flow guiding component (7) includes extended flow guiding plates respectively disposed on one or both sides of the mounting frame (1) near the upstream of the water body. The angle between the extended flow guiding plate and the width of the mounting frame (1) is an obtuse angle, and the width of the mounting frame (1) is perpendicular to the direction of water flow.

2. The biological purification device for rivers and black and odorous water bodies according to claim 1, characterized in that: It also includes a flow propulsion assembly (8), which includes a bubble generator (4) and an inclined plate (12) disposed on the side of the mounting frame (1) near the upstream of the water body. The upper end of the inclined plate (12) is connected to the upper end of the mounting frame (1), and the lower end is away from the mounting frame (1). The output end of the bubble generator (4) is located at the lower end of the inclined plate (12) and on the side of the inclined plate (12) close to the mounting frame (1), and is used to generate bubbles to drive the water to flow along the inclined plate toward the mounting frame (1).

3. The biological purification device for rivers and black and odorous water bodies according to claim 2, characterized in that: It also includes an aeration system and a floating component (6), the aeration system including a blower (5) set on top of the mounting frame (1) and an aeration device (3) connected to the first outlet of the blower (5); The floating component (6) is connected to the mounting frame (1) to make the mounting frame (1) float on the water surface, so as to ensure that the blower (5) is on the water surface; The installation frame (1) includes an upper space and a lower space. The aeration device (3) is located in the lower space, and the bioreactor zone (9) is located in the upper space. The bioreactor zone (9) is filled with biofiller. The second outlet of the blower (5) is connected to the input end of the bubble generator (4).

4. The biological purification device for rivers and black and odorous water bodies according to claim 3, characterized in that: It also includes a power supply component connected to the blower (5), the power supply component being configured as a solar panel, a small wind power generation device or connected to the power grid, and the blower (5) being configured as a loop blower, a vortex blower or a Roots blower; The blower (5) is equipped with a protective cover (10); The aeration device (3) is configured as an aerator or an aeration pipe; The floating component (6) is configured as a float or a buoy.

5. The biological purification device for rivers and black and odorous water bodies according to claim 2, characterized in that: The mesh size of the protective net is 5~20mm; The width of the extended guide plate is 5% to 100% of the width of the mounting frame (1); The wide included angle between the extended guide plate and the mounting frame (1) is 110°~155°; The angle between the inclined plate (12) and the horizontal plane is 20°~75°.

6. The biological purification device for rivers and black and odorous water bodies according to claim 5, characterized in that: The angle between the extended guide plate and the width of the mounting frame (1) is 135°, and the width is 50% of the width of the mounting frame (1); The mesh size of the protective net is 14mm; The angle between the inclined plate (12) and the horizontal plane is 45°.

7. A biological purification device for rivers and black and odorous water bodies according to any one of claims 1-6, characterized in that: The biological filler includes one of the following: ceramsite, granular activated carbon, stereoelastic filler, fiber bundle filler, and PVA gel. The fixing component (2) is configured as a fixing anchor and / or a fixing rod.

8. The biological purification device for rivers and black and odorous water bodies according to claim 1, characterized in that: It also includes a propulsion assembly (8), which includes a submersible propulsion unit disposed upstream or downstream of the mounting frame (1).

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