Biochar device for improving water quality in receiving water bodies of water conveyance projects

Abstract

This invention relates to the technical field of receiving water bodies and discloses a biochar device suitable for improving the water quality of receiving water bodies in water conveyance projects. The device includes a water collection tank, a water cavity containing multiple grid frames for filtering and purifying the receiving water, and multiple grid plates dividing the water cavity into multiple filtration zones. A floating carrier is located at the top opening of each filtration zone, with a downward-protruding cup forming a convex cup. The cup cavity is filled with a matrix mixed with biochar, and plants are planted in the matrix. The plant roots extend through multiple root holes to the outside of the cup cavity. The grid frames have longitudinal cavities, into which first and second rows of biochar-made filter plates are inserted. The first and second rows of filter plates are spaced apart to form a central cavity. The first row of filter plates has multiple filtration channels inside, through which the receiving water enters the filtration channels via multiple inlets, and the receiving water in the multiple filtration channels collects and discharges through outlets into the central cavity. The second row of filter plates has seepage-separating gaps.

Description

Technical Field

[0001] This invention patent relates to the technical field of receiving water bodies, and more specifically, to a biocarbon device suitable for improving the water quality of receiving water bodies in water conveyance projects. Background Technology

[0002] Water conveyance projects refer to projects that transport water from a water source to a water-demanding area. In water conveyance projects, the small-scale receiving water body usually refers to the water body that the project passes through between its endpoint and the point of use. These water bodies may be affected by pollution, damage, or quality degradation.

[0003] In water transfer projects, the raw water generally meets the Class II water quality standard of the National Surface Water Quality Standard. However, after the water is transferred and enters the receiving area, the quality of the raw water may be affected by factors such as the background pollution of the sediment in each area, non-point source pollution in the surrounding area, particulate matter deposition and resuspension in the pipeline, and climate influence, and even eutrophication may occur.

[0004] In existing technologies, fixed artificial wetland systems or biofilters are set up along riverbanks to purify water through the synergistic effect of soil, plants, and microorganisms. However, single biological treatment systems, such as rotating biological discs or biofilters, while able to utilize microorganisms to degrade organic matter, are significantly affected by environmental factors such as season and temperature. Summary of the Invention

[0005] The purpose of this invention is to provide a biocarbon device suitable for improving the water quality of receiving water bodies in water conveyance projects, aiming to solve the problem of poor water quality in receiving water bodies in the prior art.

[0006] The present invention is implemented as follows: it is applicable to a biochar device for improving the water quality of receiving water bodies in water conveyance projects, including a water collection tank, which has a water cavity for accommodating the receiving water body. The water cavity is provided with multiple grid frames for the receiving water body to pass through and for filtering and purifying the receiving water body. The multiple grid frames are arranged sequentially at intervals, dividing the water cavity into multiple water filtration zones arranged at intervals and having top openings.

[0007] The top opening of the filtration zone is provided with a floating carrier that floats up and down in a sheet-like shape. The floating carrier protrudes downward to form a cup. The cup has a cup cavity with a top opening. Multiple root holes are provided on the periphery and bottom of the cup. The cup cavity is filled with a substrate mixed with biochar. Plants are planted in the substrate. The roots of the plants pass through the multiple root holes and extend to the outside of the cup cavity.

[0008] The grid frame has a longitudinally arranged longitudinal cavity, in which a first row of filter plates and a second row of filter plates are inserted. The first row of filter plates and the second row of filter plates are made of biochar. The first row of filter plates and the second row of filter plates are arranged at intervals to form a closed central cavity. The grid frame has multiple grid holes on both sides, and the multiple grid holes are arranged throughout the grid frame.

[0009] The first row of filter plates has multiple water filtration channels inside. These channels extend forward through the front side of the first row of filter plates to form multiple water inlets. They also converge backward through the rear side of the first row of filter plates to form water outlets. The receiving water enters the water filtration channels through the multiple water inlets and is discharged into the central cavity through the water outlets. The second row of filter plates has seepage gaps that extend through the second row of filter plates.

[0010] Optionally, the filter channels are arranged in a multi-segment curved shape, and the curved shapes of the multiple filter channels are different; the water outlet is formed in the middle of the first row of filter plates, and the multiple filter channels are arranged around the water outlet at circumferential intervals.

[0011] Optionally, the plurality of water inlets are arranged in a spaced-around pattern and formed outside the water outlet.

[0012] Optionally, the filter channel is provided with a flexible belt, which is in a relaxed state in the filter channel. The front end of the flexible belt is fixed to the periphery of the water inlet hole, and the rear end of the flexible belt is fixed to the periphery of the water outlet hole.

[0013] Optionally, the outer surface of the flexible strip is provided with a plurality of flexible fibers, and the plurality of fibers are arranged throughout the outer surface of the flexible strip.

[0014] Optionally, the first row of filter plates has an outer peripheral portion arranged around the water outlet, and the outer peripheral portion is covered with an elastic membrane layer, which is attached to the outer peripheral portion to enclose it.

[0015] Optionally, the floating carrier is provided with a plurality of circular through holes, the convex cup is rotatably inserted into the through holes, the convex cup is rotatably connected to the floating carrier, and extends to the bottom of the floating carrier;

[0016] The cup has multiple blades protruding outwards on its periphery. These blades are spaced apart along the periphery of the cup. During the flow of the receiving water, the water impacts the blades on the periphery of the cup, driving the cup to rotate.

[0017] Optionally, the bottom of the convex cup is provided with a rotatably arranged filter rod, the filter rod is made of biochar, the filter rod is arranged longitudinally, the top of the filter rod is rotatably connected to the bottom of the convex cup, and the bottom of the filter rod extends downward.

[0018] The filter rod is hollow inside, forming a hollow cavity. The hollow cavity extends through the bottom of the filter rod, forming a bottom outlet. The hollow cavity extends through the upper part of the filter rod, and multiple upper inlets are formed on the outer periphery of the upper part of the filter rod. The multiple upper inlets are arranged at intervals along the circumference of the filter rod.

[0019] As the receiving water flows, it impacts the filter rod, causing it to rotate relative to the convex cup. The water then enters the hollow cavity through the multiple upper inlets and is discharged from the bottom outlet.

[0020] Optionally, the filter rod is arranged in a multi-segment curved shape along its height direction.

[0021] Optionally, the bottom of the filter rod extends downward with multiple flexible floating strips, which are suspended in the water. The top of the floating strips is attached to the periphery of the filter rod, the bottom of the floating strips extends downward, and the multiple floating strips are arranged around the periphery of the filter rod, with floating intervals formed between adjacent floating strips.

[0022] Compared with existing technologies, the biochar device for improving the water quality of receiving water bodies in water conveyance projects provided by this invention effectively adsorbs and removes pollutants such as organic matter and heavy metal ions from the water using the first and second filter plates made of biochar. Furthermore, the filter channel design allows the receiving water to undergo preliminary filtration as it passes through, before entering the central chamber for further fine filtration through the permeable gaps in the second filter plates, thus improving the water purification effect. Simultaneously, the numerous mesh openings on the grid frame allow water to pass freely while intercepting larger suspended solids, preventing them from entering subsequent treatment areas and providing preliminary physical filtration.

[0023] Next, the convex cups on the floating carrier are filled with a substrate mixed with biochar and planted with plants. These plants absorb nutrients (such as nitrogen and phosphorus) from the water through their roots, while the microbial community on the roots further decomposes organic matter, promoting the biological purification process of the water. The root holes on the sides and bottom of the convex cups allow the plant roots to grow freely and extend outside the cup cavity, increasing the contact area between the roots and the water and improving the efficiency of biological purification.

[0024] Biochar, as part of the matrix, not only possesses excellent adsorption properties but also provides a site for microorganisms to attach and reproduce, further enhancing the biodiversity and ecological stability of the water body. Thus, by arranging multiple grid frames at intervals in sequence, the water chamber is divided into multiple filtration zones. In each filtration zone, the combined action of biochar, plants, and microorganisms purifies the water, reducing the impact of seasonal changes and forming a highly efficient ecological purification system that significantly enhances the water body's self-purification capacity. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the water collection tank provided by the present invention;

[0026] Figure 2 This is a top view of the grating frame provided by the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the first row of filter plates provided by the present invention;

[0028] Figure 4 This is a cross-sectional schematic diagram of the first row of filter plates provided by the present invention;

[0029] Figure 5 This is a cross-sectional schematic diagram of the floating carrier provided by the present invention;

[0030] Figure 6 This is a cross-sectional schematic diagram of the floating carrier provided by the present invention. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0032] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0033] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] Reference Figure 1-6 The image shown is a preferred embodiment of the present invention.

[0035] The present invention provides a biochar device for improving the water quality of receiving water bodies in water conveyance projects, including a water collection tank 100. The water collection tank 100 has a water cavity for accommodating the receiving water body. The water cavity is provided with multiple grid frames 200 for the receiving water body to pass through and for filtering and purifying the receiving water body. The multiple grid frames 200 are arranged in sequence at intervals, dividing the water cavity into multiple water filtration zones 101 arranged at intervals and having top openings.

[0036] The top opening of the filtration zone 101 is provided with a floating carrier 300 that floats up and down and is in the shape of a sheet. The floating carrier 300 protrudes downward to form a cup 310. The cup 310 has a cup cavity with a top opening. Multiple root holes are provided on the periphery and bottom of the cup 310. The cup cavity is filled with a substrate mixed with biochar. Plants are planted in the substrate. The roots of the plants pass through the multiple root holes and extend to the outside of the cup cavity.

[0037] The grid frame 200 has a longitudinally arranged longitudinal cavity, in which a first row of filter plates 210 and a second row of filter plates 220 are inserted. The first row of filter plates 210 and the second row of filter plates 220 are made of biochar. The first row of filter plates 210 and the second row of filter plates 220 are arranged at intervals to form a closed central cavity 201. Multiple grid holes are provided on both sides of the grid frame 200, and the multiple grid holes are distributed throughout the grid frame 200.

[0038] The first row of filter plates 210 has multiple water filtration channels 202 inside. The multiple water filtration channels 202 pass through the front side of the first row of filter plates 210 to form multiple water inlet holes 211. The multiple water filtration channels 202 converge and pass through the rear side of the first row of filter plates 210 to form water outlet holes 212. The receiving water enters the water filtration channels 202 through the multiple water inlet holes 211, and the receiving water in the multiple water filtration channels 202 converges and is discharged into the middle cavity 201 through the water outlet holes 212. The second row of filter plates 220 has a seepage gap, and the seepage gap passes through the second row of filter plates 220.

[0039] The aforementioned biochar device for improving the water quality of receiving water bodies in water conveyance projects, made of biochar, features a first-row filter plate 210 and a second-row filter plate 220 that effectively adsorb and remove pollutants such as organic matter and heavy metal ions from the water. Furthermore, the design of the filtration channel 202 allows the receiving water to undergo preliminary filtration as it passes through, before entering the central cavity 201 for further fine filtration through the permeable gaps in the second-row filter plate 220, thus improving the water purification effect. Simultaneously, the numerous mesh openings on the bar screen 200 allow water to pass freely while intercepting larger suspended solids, preventing them from entering subsequent treatment areas and providing preliminary physical filtration.

[0040] Next, the convex cup 310 on the floating carrier 300 is filled with a substrate of mixed biochar and planted with plants. These plants absorb nutrients (such as nitrogen and phosphorus) from the water through their roots, while the microbial community on the roots further decomposes organic matter, promoting the biological purification process of the water. The root holes on the sides and bottom of the convex cup 310 allow the plant roots to grow freely and extend outside the cup cavity, increasing the contact area between the roots and the water and improving the efficiency of biological purification.

[0041] As part of the matrix, biochar not only possesses excellent adsorption properties but also provides a site for microorganisms to attach and reproduce, further enhancing the biodiversity and ecological stability of the water body. Thus, by arranging multiple grid frames 200 at intervals, the water chamber is divided into multiple filtration zones 101. The biochar, plants, and microorganisms within each filtration zone 101 work together to form a highly efficient ecological purification system, significantly enhancing the water body's self-purification capacity.

[0042] Specifically, a water pump draws water from the upper reaches of the river into the inlet pipe, where it enters the water chamber, and then the purified water is discharged to the lower reaches of the river through the outlet pipe.

[0043] Specifically, the filter channels 202 are arranged in a multi-segment curved shape, and the curved shapes of the multiple filter channels 202 are different; the water outlet 212 is formed in the middle of the first row of filter plates 210, and the multiple filter channels 202 are arranged circumferentially around the water outlet 212. In this way, as the water flows along the filter channels 202, it comes into full contact with the sidewalls of the multiple filter channels 202 under the action of inertia.

[0044] Specifically, multiple water inlets 211 are arranged in a spaced-around pattern and are formed outside the water outlet 212.

[0045] A flexible belt 2201 is provided in the water filter channel 202. The flexible belt 2201 is in a relaxed state in the water filter channel 202. The front end of the flexible belt 2201 is fixed to the periphery of the water inlet 211, and the rear end of the flexible belt 2201 is fixed to the periphery of the water outlet 212. In this way, the presence of the flexible belt 2201 can also prevent the water filter channel 202 from being blocked by impurities. When the water flow carries larger particles or suspended matter into the water filter channel 202, these impurities may get stuck in a certain position in the water filter channel 202, affecting the passage of subsequent water. The oscillation of the flexible belt 2201 can flush away these impurities to a certain extent, preventing them from blocking the water filter channel 202 and achieving a self-cleaning effect. The relaxed state of the flexible belt 2201 in the water filter channel 202 allows it to oscillate freely with changes in water flow, which helps to regulate and distribute the water flow entering the water filter channel 202. When the water flow is strong, the flexible belt 2201 will be slightly tightened by the impact of the water flow, thereby slowing down the water flow and making the water flow more evenly distributed in the filter channel 202, improving the filtration effect. The oscillation of the flexible belt 2201 may also generate tiny eddies or disturbances. These eddies or disturbances help increase the contact area and contact time between the water and the filter media such as filter plates and biochar, thereby improving the filtration effect. At the same time, eddies and disturbances also help separate suspended solids, colloids and other small particles from the water, further improving water quality.

[0046] The outer surface of the flexible belt 2201 is covered with multiple flexible fibers, which are distributed throughout the outer surface of the flexible belt 2201. In this way, the fibers can more effectively intercept and adsorb impurities such as tiny particles, suspended solids, and colloids in the water, thereby improving filtration efficiency and water purification effect.

[0047] The first row of filter plates 210 has an outer peripheral portion arranged around the water outlet 212. An elastic membrane layer 213 is covered on the outer peripheral portion, and the membrane layer 213 is attached to the outer peripheral portion, sealing it off. In this way, water flows through the outer peripheral portion and then flows back through the membrane layer 213, achieving multiple filtrations.

[0048] The floating carrier 300 is provided with multiple circular through holes 301, and the convex cup 310 is rotatably inserted into the through holes 301. The convex cup 310 is rotatably connected to the floating carrier 300 and extends to the bottom of the floating carrier 300.

[0049] The convex cup 310 has multiple outward-protruding blades 320 arranged at intervals along its periphery. As the receiving water flows, it impacts the blades 320, driving the convex cup 310 to rotate. This rotation causes the surrounding water to move, creating localized eddies and turbulence. This agitation and mixing helps enhance the distribution of dissolved oxygen in the water, improving its self-purification capacity. It also helps to distribute pollutants more evenly, providing favorable conditions for subsequent biological or chemical treatment. The rotation of the convex cup 310 also promotes full contact between the water and biofilms and plants. This not only increases the utilization rate of the purification medium but also improves the efficiency of pollutant adsorption, degradation, or transformation, thereby accelerating water quality improvement.

[0050] The bottom of the cup 310 is provided with a rotatably arranged filter rod 330. The filter rod 330 is made of biochar and is arranged longitudinally. The top of the filter rod 330 is rotatably connected to the bottom of the cup 310, and the bottom of the filter rod 330 extends downward.

[0051] The interior of the filter rod 330 is hollow, forming a hollow cavity. The hollow cavity extends through the bottom of the filter rod 330, forming a bottom outlet 332. The hollow cavity extends through the upper part of the filter rod 330, and multiple upper inlets 331 are formed on the outer periphery of the upper part of the filter rod 330. The multiple upper inlets 331 are arranged at intervals along the circumference of the filter rod 330.

[0052] As the receiving water flows, the impact filter rod 330 rotates relative to the convex cup 310 and enters the hollow cavity through multiple upper inlets 331, and is discharged from the bottom outlet 332. In this way, impurities in the water are purified by the filter rod 330.

[0053] Along the height of the filter rod 330, the filter rod 330 is arranged in a multi-segment curved shape. This increases the contact area between the water and the filter rod 330.

[0054] Multiple flexible floating strips 340 extend downwards from the bottom of the filter rod 330. These floating strips 340 are suspended in the collected water. The tops of the floating strips 340 are attached to the periphery of the filter rod 330, while the bottoms of the floating strips 340 extend downwards. These multiple floating strips 340 are arranged circumferentially around the filter rod 330, with floating gaps between adjacent floating strips 340. This arrangement provides stability to the convex cup 310 through the floating strips 340, offering additional support and fixation, thus improving the overall structural stability. Furthermore, as the filter rod 330 rotates, the floating strips 340 also oscillate. This dynamic movement helps break the laminar flow of the water, creating more eddies and turbulence. This agitation and mixing helps to distribute dissolved oxygen more evenly in the water, improving the water's self-purification capacity and promoting the exchange of substances and biological activity in the water.

[0055] Floating gaps provide more channels and paths for water flow. As water flows through, these gaps can guide the flow to form small eddies and turbulence, thereby increasing the fluidity of the water body.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A biochar device for improving the water quality of receiving water bodies in water conveyance projects, characterized in that, Includes a water collection tank, which has a water cavity for accommodating receiving water. The water cavity is provided with multiple grid frames for the receiving water to pass through and for filtering and purifying the receiving water. The multiple grid frames are arranged in sequence at intervals to divide the water cavity into multiple water filtration zones that are arranged at intervals and have top openings. The top opening of the filtration zone is provided with a floating carrier that floats up and down in a sheet-like shape. The floating carrier protrudes downward to form a cup. The cup has a cup cavity with a top opening. Multiple root holes are provided on the periphery and bottom of the cup. The cup cavity is filled with a substrate mixed with biochar. Plants are planted in the substrate. The roots of the plants pass through the multiple root holes and extend to the outside of the cup cavity. The grid frame has a longitudinally arranged longitudinal cavity, in which a first row of filter plates and a second row of filter plates are inserted. The first row of filter plates and the second row of filter plates are made of biochar. The first row of filter plates and the second row of filter plates are arranged at intervals to form a closed central cavity. The grid frame has multiple grid holes on both sides, and the multiple grid holes are arranged throughout the grid frame. The first row of filter plates has multiple water filtration channels inside. These channels extend forward through the front side of the first row of filter plates, forming multiple water inlets. They also converge backward through the rear side of the first row of filter plates, forming water outlets. The receiving water enters the water filtration channels through the multiple water inlets and is discharged into the central cavity through the water outlets. The second row of filter plates has seepage gaps that extend through the second row of filter plates. The floating carrier has multiple circular through holes, and the convex cup is rotatably inserted into the through holes. The convex cup is rotatably connected to the floating carrier and extends to the bottom of the floating carrier. The cup has multiple blades protruding outwards on its periphery. These blades are spaced apart along the periphery of the cup. During the flow of the receiving water, the water impacts the blades on the periphery of the cup, driving the cup to rotate.

2. The biochar device for improving water quality in receiving water bodies of water conveyance projects as described in claim 1, characterized in that, The filter channels are arranged in multiple curved sections, and the curved shapes of the multiple filter channels are different; the water outlet is formed in the middle of the first row of filter plates, and the multiple filter channels are arranged around the water outlet at intervals along the circumference.

3. The biochar device for improving water quality in receiving water bodies of water conveyance projects as described in claim 2, characterized in that, The plurality of water inlets are arranged in a spaced-around pattern and formed outside the water outlet.

4. The biochar device for improving water quality in receiving water bodies of water conveyance projects as described in claim 2, characterized in that, The filter channel is equipped with a flexible belt, which is in a relaxed state in the filter channel. The front end of the flexible belt is fixed to the periphery of the water inlet hole, and the rear end of the flexible belt is fixed to the periphery of the water outlet hole.

5. The biochar device for improving water quality in receiving water bodies of water conveyance projects as described in claim 4, characterized in that, The outer surface of the flexible strip is provided with a plurality of flexible fibers, which are distributed throughout the outer surface of the flexible strip.

6. The biochar device for improving water quality in receiving water bodies of water conveyance projects as described in claim 1, characterized in that, The first row of filter plates has an outer peripheral portion arranged around the water outlet, and the outer peripheral portion is covered with an elastic membrane layer, which is attached to the outer peripheral portion to enclose it.

7. The biochar device for improving water quality in receiving water bodies of water conveyance projects as described in any one of claims 1-6, characterized in that, The bottom of the convex cup is provided with a rotatably arranged filter rod, which is made of biochar. The filter rod is arranged longitudinally, with its top rotatably connected to the bottom of the convex cup and its bottom extending downwards. The filter rod is hollow inside, forming a hollow cavity. The hollow cavity extends through the bottom of the filter rod, forming a bottom outlet. The hollow cavity extends through the upper part of the filter rod, and multiple upper inlets are formed on the outer periphery of the upper part of the filter rod. The multiple upper inlets are arranged at intervals along the circumference of the filter rod. As the receiving water flows, it impacts the filter rod, causing it to rotate relative to the convex cup. The water then enters the hollow cavity through the multiple upper inlets and is discharged from the bottom outlet.

8. The biochar device for improving water quality in receiving water bodies of water conveyance projects as described in claim 7, characterized in that, Along the height direction of the filter rod, the filter rod is arranged in a multi-segment curved shape.

9. The biochar device for improving water quality in receiving water bodies of water conveyance projects as described in claim 8, characterized in that, The filter rod has multiple flexible floating strips extending downward from its bottom. These floating strips are suspended in the receiving water body. The tops of the floating strips are attached to the periphery of the filter rod, and the bottoms of the floating strips extend downward. The multiple floating strips are arranged around the circumference of the filter rod, and floating intervals are formed between adjacent floating strips.

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