Environment-friendly water filter brick

CN224798642UActive Publication Date: 2026-09-25BEIJING BUILDING MATERIALS ACADEMY OF SCI RES +1
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Patent Information

Application Number
CN202522023169.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-19
Publication Date
2026-09-25
Estimated Expiration
2035-09-19

AI Technical Summary

Technical Problem

然而,这种设计存在一个关键的技术问题:水流与微生物共处同一通道内,水流的冲刷力直接作用于微生物,导致微生物大量流失,生物膜难以形成和维持

Benefits of technology

[0018]本实用新型提供的滤水环保净水砖,通过在砖体内设置沿第一方向延伸的水流通道以及沿第二方向延伸的繁殖通道,并使繁殖通道与水流通道连通,解决了传统净水砖中水流冲刷破坏微生物生存环境的关键技术问题。当水流沿第一方向通过水流通道时,由于繁殖通道沿第二方向设置且与第一方向相交,水流的主要动能被限制在水流通道内,不会直接冲击繁殖通道中的微生物群落,而是通过两通道的连通处进行物质交换。在连通处,水中的污染物通过浓度梯度和扩散作用进入繁殖通道,与其中培育的净水微生物接触并被降解,微生物的代谢产物则通过相同的路径回到水流通道随水流带走。水流通道专门承担水体的快速输送,保证了处理流量;繁殖通道专门用于微生物的培育和繁殖,为微生物提供了相对静态、稳定的生存环境。由于水流的冲刷力主要作用在水流通道内,繁殖通道内的水力条件相对温和,微生物能够稳定附着在载体表面形成生物膜,并在适宜的环境中持续繁殖和代谢,从而保证了净化效果的持续性和稳定性。

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Abstract

The utility model relates to the technical field of water treatment especially relates to a filter water environmental protection water purification brick, the filter water environmental protection water purification brick provided by the utility model, including the brick body, being provided with the water flow channel along the first direction extension and the propagation channel along the second direction extension in the brick body, the propagation channel is linked with the water flow channel, and the propagation channel is used for cultivating water purification bacterial species, wherein the water flow channel is along the first direction and penetrates the brick body, and the first direction is intersected with the second direction and is arranged, the filter water environmental protection water purification brick provided by the utility model has realized the function separation of water flow delivery and microorganism cultivation, has guaranteed the smooth passing of water flow, and has provided the stable living environment for microorganism.
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Description

Technical Field

[0001] This utility model relates to the technical field of water treatment, and in particular to a water-filtering and environmentally friendly water purification brick. Background Technology

[0002] Biological water purification technology is widely used in the field of water purification due to its advantages such as being eco-friendly, low-cost, and having long-lasting effects.

[0003] Existing biological water purification bricks typically incorporate channels within the brick for water flow, while simultaneously cultivating water-purifying microorganisms within these channels for biological purification. However, this design presents a critical technical challenge: with water and microorganisms coexisting in the same channel, the scouring force of the water directly impacts the microorganisms, leading to significant microbial loss and hindering the formation and maintenance of a biofilm.

[0004] Specifically, when water flows through the water purification brick, the kinetic energy of the water flow directly impacts the microbial community because the direction of the water flow is consistent with the direction of the microbial cultivation space, causing the following problems: First, it is difficult for microorganisms to attach, and microorganisms that have just attached to the surface of the carrier are easily washed away by the water flow; second, the biofilm structure is unstable, and even if a preliminary biofilm is formed, it will gradually peel off under the scouring of the water flow; third, the purification effect is not continuous, the microbial community cannot be stably maintained, resulting in a decline in purification capacity.

[0005] The destructive effect of this water flow on microorganisms is particularly severe in high-velocity, high-flow-rate applications, such as river management and rainwater treatment. The strong water flow impact results in a very low survival rate of microorganisms in traditional biological water purification bricks, making it difficult to guarantee the purification effect and leading to poor long-term stability of the system.

[0006] Therefore, a new water purification brick structure design is needed that can provide a relatively stable living environment for microorganisms while ensuring smooth water flow, avoid damage to the microbial community caused by water erosion, and achieve long-term stable purification effect. Utility Model Content

[0007] This utility model provides a water-filtering and environmentally friendly water purification brick that separates the functions of water delivery and microbial cultivation, ensuring smooth water flow while providing a stable living environment for microorganisms.

[0008] This utility model provides a water-filtering and environmentally friendly water purification brick, including a brick body, in which a water flow channel extending in a first direction and a propagation channel extending in a second direction are provided. The propagation channel is connected to the water flow channel and is used to cultivate water purification bacteria. The water flow channel penetrates the brick body in the first direction, and the first direction and the second direction are intersected.

[0009] In one possible implementation, the water flow channel includes an inlet channel, a purified water channel, and an outlet channel connected in sequence, and the water filtration and environmental protection water purification brick also includes purified water filler, which is installed inside the purified water channel; wherein, the purified water channel is connected to the breeding channel.

[0010] In one possible implementation, there are two water purification channels, and a breeding channel is located between the two water purification channels, with both ends of the breeding channel connected to the two water purification channels respectively.

[0011] In one possible implementation, the brick body includes: a first brick body, the top of which is provided with a placement groove, and the first brick body is provided with a water inlet channel and a water outlet channel; a second brick body, which is placed in the placement groove; wherein, a water purification channel and a breeding channel are formed between the first brick body and the second brick body.

[0012] In one possible implementation, the second brick is made of a permeable material, and the portion of the second brick located in the water purification channel forms a water purification filler.

[0013] In one possible implementation, the second brick has a groove on the side facing the first brick that is opposite to the breeding channel.

[0014] In one possible implementation, the second brick is provided with aeration holes that penetrate the second brick vertically to aerate the breeding channel.

[0015] In one possible implementation, a first positioning part is provided in the placement groove of the first brick, and a second positioning part that cooperates with the first positioning part is provided at the end of the second brick facing the first brick.

[0016] In one possible implementation, the first positioning part is a positioning block and the second positioning part is a positioning groove; wherein, the positioning block forms a breeding channel on both sides along the first direction.

[0017] In one possible implementation, the cross-sectional area of ​​the water inlet channel gradually decreases towards the water purification channel.

[0018] This utility model provides a water-filtering and environmentally friendly water purification brick. By incorporating a water flow channel extending in a first direction and a reproduction channel extending in a second direction within the brick body, and connecting the reproduction channel to the water flow channel, it solves the key technical problem of water flow erosion damaging the microbial living environment in traditional water purification bricks. When water flows through the water flow channel in the first direction, because the reproduction channel is located in the second direction and intersects with the first direction, the main kinetic energy of the water flow is confined within the water flow channel, preventing direct impact on the microbial community within the reproduction channel. Instead, material exchange occurs through the connection point between the two channels. At the connection point, pollutants in the water enter the reproduction channel through concentration gradients and diffusion, come into contact with and are degraded by the water purification microorganisms cultivated therein. The metabolic products of the microorganisms return to the water flow channel via the same path and are carried away by the water flow. The water flow channel is specifically designed for rapid water transport, ensuring the treatment flow rate; the reproduction channel is specifically used for the cultivation and reproduction of microorganisms, providing a relatively static and stable living environment for them. Since the scouring force of the water flow mainly acts within the water flow channel, the hydraulic conditions within the reproduction channel are relatively mild. Microorganisms can stably attach to the carrier surface to form a biofilm and continue to reproduce and metabolize in a suitable environment, thus ensuring the continuity and stability of the purification effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a top view structural diagram of a first brick body provided by this utility model.

[0021] Figure 2 This is a top view structural diagram of a second brick provided by this utility model.

[0022] Figure 3 This is an exploded structural diagram of a water-filtering and environmentally friendly water purification brick provided by this utility model.

[0023] Figure 4 This is a structural schematic diagram of a first brick body from a side view provided by this utility model.

[0024] Figure 5 This is a side view structural diagram of a second brick provided by this utility model.

[0025] Figure label: X, first direction; Y, second direction; 1. Water flow channel; 11. Water inlet channel; 12. Water purification channel; 13. Water outlet channel; 2. Reproduction channel; 3. First brick body; 31. Placement groove; 32. First positioning part; 4. Second brick; 41. Groove; 42. Aeration hole; 43. Second positioning part. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] The following is combined Figure 1-5 This utility model provides a water-filtering and environmentally friendly water purification brick, including a brick body. The brick body is provided with a water flow channel 1 extending along a first direction X and a breeding channel 2 extending along a second direction Y. The breeding channel 2 is connected to the water flow channel 1 and is used to cultivate water purification bacteria. The water flow channel 1 penetrates the brick body along the first direction X, and the first direction X and the second direction Y are intersected.

[0028] In this invention, a water flow channel 1 extending along a first direction X and a reproduction channel 2 extending along a second direction Y are provided within the brick body, and the reproduction channel 2 is connected to the water flow channel 1. This solves the technical problem of water flow erosion destroying the microbial living environment in traditional water purification bricks. When water flows through the water flow channel 1 along the first direction X, because the reproduction channel 2 is located along the second direction Y and intersects with the water flow channel 1, the water flow will not directly impact the microorganisms in the reproduction channel 2. Instead, material exchange occurs through the connection, allowing pollutants in the water to diffuse into the reproduction channel 2 and come into contact with the microorganisms. The metabolic products of the microorganisms can also be discharged through the connection, thus protecting the microbial community and achieving effective purification.

[0029] Specifically, the first direction X is perpendicular to the second direction Y. The first direction X is set along the length of the brick, and the second direction Y is set along the width of the brick. The water flow channel 1 runs through the brick and carries out the function of water transport, while the propagation channel 2 provides a space for the cultivation of water-purifying bacteria. Pollutants enter the propagation channel 2 through diffusion and are degraded by microorganisms, while the clean water continues to move along the water flow channel 1.

[0030] In this embodiment of the invention, a dual-channel system with the first direction X and the second direction Y intersecting is used to effectively separate the water flow delivery function and the microbial cultivation function. The water flow channel 1 undertakes the task of water delivery, and the cultivation channel 2 is used to cultivate water purification bacteria. This not only ensures the smooth flow of water, but also provides a stable living environment for microorganisms, thereby achieving a dual improvement in purification efficiency and microbial survival rate.

[0031] like Figure 1 As shown, in some embodiments, the water flow channel 1 includes an inlet channel 11, a purified water channel 12, and an outlet channel 13 connected in sequence. The water filter environmental protection purification brick also includes a purified water filler, which is disposed in the purified water channel 12; wherein, the purified water channel 12 is connected to the breeding channel 2.

[0032] In this invention, the water flow channel 1 is divided into an inlet channel 11, a purified water channel 12, and an outlet channel 13 connected in sequence. Purified water packing material is installed in the purified water channel 12, and the purified water channel 12 is connected to the propagation channel 2. Water enters the purified water channel 12 containing the purified water packing material through the inlet channel 11 for purification, and finally exits from the outlet channel 13. Because the purified water channel 12 is connected to the propagation channel 2, the microorganisms in the propagation channel 2 can directly participate in the purification process within the purified water channel 12. The purified water packing material provides physical adsorption and filtration, while the microorganisms provide biodegradation; the synergistic effect of both enhances the purification effect.

[0033] Specifically, the water inlet channel 11 receives raw water and pre-treats it, the water purification packing in the water purification channel 12 performs deep purification of the water, and the breeding channel 2 delivers active microorganisms to the water purification channel 12 through the connecting structure, which can achieve both physical purification of the water and biodegradation, further improving the purification effect of the water.

[0034] In this embodiment of the invention, a reasonable division of labor for the purification function is achieved by establishing a dedicated water inlet channel 11, a purified water channel 12, and an outlet channel 13. The water inlet channel 11 is responsible for pretreatment, the purified water channel 12 is dedicated to the main purification, and the reproduction channel 2 provides biological enhancement. Each link has a clear responsibility and cooperates with each other, avoiding functional interference and ensuring purification efficiency.

[0035] like Figure 1 As shown, in some embodiments, two water purification channels 12 are provided, and a breeding channel 2 is provided between the two water purification channels 12. The two ends of the breeding channel 2 are respectively connected to the two water purification channels 12.

[0036] In this invention, two water purification channels 12 are provided, and a propagation channel 2 is placed between the two water purification channels 12, so that both ends of the propagation channel 2 are connected to the two water purification channels 12 respectively, forming an enclosed purification structure. When water flows in the two water purification channels 12 respectively, the propagation channel 2 can receive nutrients and oxygen from both directions, while metabolic products can also be discharged from the two outlets, which improves the exchange effect between the water purification channels 12 and the propagation channel 2, thereby ensuring the activity of the water purification bacteria in the propagation channel 2 and the water purification effect.

[0037] Specifically, the two water purification channels 12 process the water flow respectively, and the reproduction channel 2 is located in the middle. It exchanges substances with the water purification channel 12 through the connecting ports at both ends, so that the nutrient supply in the reproduction channel 2 is more sufficient, the oxygen transmission is smoother, and the growth environment of microorganisms is optimized.

[0038] In this embodiment of the invention, the enclosed design of the dual water purification channels 12 creates better biochemical conditions for the reproduction channel 2. The bidirectional supply of nutrients and oxygen ensures the vitality of the microbial community, while the bidirectional discharge of metabolic products avoids the accumulation of toxicity. At the same time, the two water purification channels 12 provide greater processing capacity and system redundancy, improving purification efficiency and operational reliability.

[0039] like Figure 3 As shown, in some embodiments, the brick body includes: a first brick body 3, the top of which is provided with a placement groove 31, and the first brick body 3 is provided with a water inlet channel 11 and a water outlet channel 13; a second brick body 4, which is disposed in the placement groove 31; wherein, a water purification channel 12 and a breeding channel 2 are formed between the first brick body 3 and the second brick body 4.

[0040] In this invention, the brick body is divided into a combined structure of a first brick body 3 and a second brick body 4. A placement groove 31 is provided on the top of the first brick body 3 for installing the second brick body 4. A water purification channel 12 and a breeding channel 2 are formed between the first brick body 3 and the second brick body 4, achieving modular separation of structure and function. When maintenance is required, the second brick body 4 can be directly removed for cleaning or replacement without disassembling the entire system. The split design also simplifies the manufacturing process; the complex internal channel structure is achieved through the combination of two simple components.

[0041] Specifically, the first brick 3 serves as the main structural element, providing a stable frame and guiding water flow, while the second brick 4 performs the purification function. Different materials and structures can be selected as needed. The size and shape of the placement trough 31 match the size and shape of the second brick 4, ensuring the accurate positioning of the second brick 4. The space formed by the combination of the two bricks naturally constitutes the water purification channel 12 and the breeding channel 2.

[0042] In this embodiment of the invention, the split design simplifies the complex problem, allowing the first brick 3 and the second brick 4 to be manufactured and optimized separately, reducing manufacturing difficulty. Furthermore, the split design makes maintenance simpler and more efficient, extending the system's lifespan and reducing operating costs.

[0043] In some embodiments, the second brick 4 is made of a permeable material, and the portion of the second brick 4 located in the water purification channel 12 forms a water purification filler.

[0044] In this invention, the second brick 4 is made of a permeable material, and its portion located in the water purification channel 12 forms a water purification filler, achieving an integrated design of structural materials and purification media. The porous structure of the permeable material provides an attachment carrier for microorganisms while allowing water molecules and small molecule nutrients to pass freely, thus preventing microorganisms from migrating outward. When the second brick 4 fills the water purification channel 12, it completely surrounds the reproduction channel 2, effectively preventing the loss of water purification bacteria to the external environment and achieving closed management of the bacteria.

[0045] Specifically, the second brick 4, made of permeable material, has selective permeability, allowing water and nutrients to enter the reproduction channel 2 through its porous structure, providing a continuous supply of nutrients for microorganisms. However, the microorganisms themselves are restricted by the pore size and cannot pass through. This design ensures the nutritional needs of microorganisms while preventing the disorderly spread of bacterial species.

[0046] In some embodiments, the second brick 4 is provided with a groove 41 on the side facing the first brick 3, which is opposite to the breeding channel 2.

[0047] In this invention, a groove 41 is provided on the side of the second brick 4 facing the first brick 3, opposite to the reproduction channel 2, thus expanding the effective space of the reproduction channel 2. The groove 41 effectively adds extra volume to the original reproduction channel 2, providing more habitat and reproduction sites for microorganisms. When microorganisms grow within the reproduction channel 2, the area of ​​the groove 41 becomes an important site for microbial aggregation; the increased space capacity allows for higher microbial density, enabling the biofilm to form a thicker structure.

[0048] Specifically, the groove 41 is positioned opposite the reproduction channel 2, forming an expanded space for biological activity. The three-dimensional structure of the groove 41 increases the surface area available for microbial attachment, promoting the uniform development of the biofilm. At the same time, the groove 41 improves the flow conditions within the reproduction channel 2, reduces stagnant areas, and makes the distribution of nutrients more uniform.

[0049] like Figure 2 and 5 As shown, in some embodiments, the second brick 4 is provided with aeration holes 42, which penetrate the second brick 4 vertically and are used to aerate the breeding channel 2.

[0050] In this invention, vertically penetrating aeration holes 42 are provided on the second brick 4, establishing an active oxygen supply system. Oxygen directly enters the reproduction channel 2 through the aeration holes 42, fully mixing with the water within the channel to increase the dissolved oxygen concentration. This active oxygen supply method does not rely on natural diffusion and can adjust the oxygen supply intensity according to the oxygen demand of microorganisms, ensuring a suitable oxygen environment is maintained within the reproduction channel 2 at all times, promoting the normal metabolism and reproduction of aerobic microorganisms.

[0051] Specifically, the aeration holes 42 penetrate vertically through the second brick 4, forming an oxygen supply channel that extends directly from the outside to the reproduction channel 2. Oxygen enters the reproduction channel 2 through the aeration devices and aeration holes 42, providing a sufficient oxygen supply for aerobic microorganisms. The vertical orientation utilizes buoyancy, which is beneficial for the uniform distribution of bubbles and the full dissolution of oxygen.

[0052] When multiple bricks are stacked, the aeration holes 42 can be connected to the side of the bricks to facilitate connection with external aeration equipment.

[0053] In some embodiments, a first positioning part 32 is provided in the placement groove 31 of the first brick 3, and a second positioning part 43 that cooperates with the first positioning part 32 is provided at one end of the second brick 4 facing the first brick 3.

[0054] In this invention, a first positioning part 32 is provided in the placement groove 31 of the first brick 3, and a second positioning part 43, which cooperates with the first positioning part 32, is provided at the end of the second brick 4 facing the first brick 3, thereby achieving precise positioning and stable connection of the two bricks. When the second brick 4 is placed in the placement groove 31 of the first brick 3, the first positioning part 32 and the second positioning part 43 automatically cooperate to limit the displacement of the second brick 4, ensuring that it is in the correct position. This guarantees the geometric accuracy of the water purification channel 12 and the breeding channel 2, and avoids channel misalignment from affecting the purification effect.

[0055] Specifically, the first positioning part 32 and the second positioning part 43 form a mechanically mating relationship, achieving precise positioning through geometric constraints. The mating of the positioning parts not only restricts the planar displacement of the second brick 4, but also controls its rotation and tilt, ensuring that the relative position between the two bricks is accurate and stable.

[0056] In some embodiments, the first positioning part 32 is a positioning block and the second positioning part 43 is a positioning groove; wherein, the positioning block forms a breeding channel 2 on both sides along the first direction X.

[0057] In this invention, the first positioning part 32 is a positioning block, and the second positioning part 43 is a positioning groove. The positioning blocks form breeding channels 2 on both sides along the first direction X, thus combining the positioning function with the channel forming function. The two positioning blocks divide the breeding space into three relatively independent areas, each of which can cultivate different types or functions of microorganisms, avoiding competition and interference between different strains. The positioning blocks also ensure the dimensional stability of the breeding channels 2, making the flow characteristics of each channel predictable and controllable.

[0058] Specifically, the cooperation between the positioning blocks and the positioning grooves not only achieves accurate positioning of the second brick 4, but also creates multiple independent breeding spaces through the separating effect of the positioning blocks. Two positioning blocks are used, dividing the space into three breeding channels 2, providing a physical basis for the functional division of microorganisms. Each channel can cultivate a microbial community with a specific function as needed.

[0059] In some embodiments, the cross-sectional area of ​​the water inlet channel 11 is gradually reduced toward the water purification channel 12.

[0060] In this invention, the cross-sectional area of ​​the inlet channel 11 gradually decreases towards the purified water channel 12, utilizing the principle of fluid continuity to gradually increase the velocity of the water flow as it passes through the inlet channel 11. According to fluid mechanics principles, when fluid passes through a gradually decreasing pipe, the flow velocity must increase as the cross-sectional area decreases to maintain a constant flow rate. This accelerated water flow generates a continuous drag force on the particles within the pipe, preventing particle deposition and blockage. Simultaneously, the appropriately increased flow velocity improves the contact effect between the water flow and the subsequent purification medium.

[0061] Specifically, the tapering design of the inlet channel 11 creates a contracting flow, with the water velocity increasing along the flow path. This increased velocity generates sufficient drag to keep particles suspended and enhances the water's self-cleaning ability. The carefully controlled tapering angle avoids excessive flow resistance while ensuring sufficient anti-clogging performance.

[0062] In this embodiment of the invention, the tapered design solves the particle deposition problem through a reasonable distribution of flow velocity, maintaining the long-term unobstructed flow of the channel. The appropriate increase in water flow velocity also enhances the mixing effect with the purification medium, improves mass transfer conditions, and increases purification efficiency.

[0063] In some embodiments, the system further includes: water treatment filter media disposed within the water inlet channel 11; and a filter screen disposed between the water inlet channel 11 and the purified water channel 12 for intercepting the water treatment filter media.

[0064] In this invention, water treatment filter media is installed in the water inlet channel 11, and a filter screen is installed between the water inlet channel 11 and the purified water channel 12 to intercept the water treatment filter media, thus establishing a filter media protection and recovery system. The water treatment filter media pre-treats the water in the water inlet channel 11, removing large particulate impurities and reducing the load on subsequent fine purification. The filter screen allows treated water to pass through while preventing filter media loss, ensuring that the filter media always remains in its designed position to function, achieving long-term stable use and convenient maintenance of the filter media.

[0065] Specifically, the water treatment filter media performs coarse filtration, while the filter screen acts as a constraint on the filter media. When water flows through the inlet channel 11, the filter media physically intercepts and adsorbs the water, while the filter screen prevents the filter media from entering the clean water channel 12 with the water flow, maintaining a stable distribution of the filter media within the inlet channel 11.

[0066] In some embodiments, the water treatment filter media includes at least one of lightweight ceramsite, quartz sand, anthracite, zeolite, and activated zeolite.

[0067] In this invention, the water treatment filter media includes at least one of lightweight ceramsite, quartz sand, anthracite, zeolite, and activated zeolite, achieving selective removal of different pollutants. Lightweight ceramsite has a porous structure, providing a biofilm carrier function; quartz sand particles are uniform, undertaking stable physical filtration; anthracite has a large surface area and excellent adsorption performance; zeolite has ion exchange capacity for ions such as ammonia nitrogen; and activated zeolite further enhances the specific surface area and adsorption capacity. These filter media can be used individually or in combination according to the characteristics of the water quality to achieve customized purification solutions.

[0068] Specifically, different filter media leverage their respective strengths: lightweight ceramsite provides an attachment carrier for microorganisms, quartz sand performs physical interception, anthracite adsorbs organic matter, and zeolite materials remove ammonia nitrogen and heavy metal ions. The synergistic effect of multiple filter media enables a single water purification brick to treat wastewater with complex compositions.

[0069] In some embodiments, the first brick body 3 is made of continuously graded dense recycled aggregate concrete, and the second brick body 4 is made of discontinuously graded permeable recycled aggregate concrete.

[0070] In this invention, the first brick body 3 is made of continuously graded dense recycled aggregate concrete, while the second brick body 4 is made of discontinuously graded permeable recycled aggregate concrete, achieving a precise match between material performance and functional requirements. Continuously graded dense concrete possesses excellent compactness and strength, capable of withstanding water flow impact and external loads, meeting structural load-bearing requirements. Discontinuously graded permeable concrete has an interconnected pore structure, providing excellent permeability and conditions for microbial attachment, meeting purification function requirements. The use of recycled aggregate also embodies the environmental protection concept of resource recycling.

[0071] Specifically, the dense structure of the first brick body 3 ensures the overall strength and durability of the water-purifying brick, while the permeable structure of the second brick body 4 provides purification functionality and a carrier for microorganisms. Continuous gradation ensures dense filling of aggregate particles, while discontinuous gradation retains necessary porosity. Recycled aggregates are derived from the recycling of construction waste, solving both waste disposal problems and conserving natural resources.

[0072] In some embodiments, the aeration holes 42 are arranged in an array.

[0073] In this invention, the aeration holes 42 are arranged in an array, achieving uniform and efficient oxygen supply. Multiple aeration holes 42 are arranged in a regular pattern, each covering a specific oxygen supply area. The overlap of these areas ensures the uniformity of oxygen distribution throughout the entire breeding channel 2. The array arrangement also increases the number of gas-liquid contact points, improving oxygen mass transfer efficiency. When individual aeration holes 42 become blocked, the others can still maintain their oxygen supply function, ensuring the reliability of the system.

[0074] Specifically, the aeration holes 42 are distributed on the second brick 4 at a certain spacing and in a certain arrangement to form an oxygen supply network. The bubbles generated by each aeration hole 42 diffuse within the breeding channel 2, and the synergistic effect of multiple bubble sources ensures sufficient mixing and uniform distribution of oxygen. The array arrangement also facilitates the design and maintenance management of the aeration system.

[0075] In operation, rainwater from the river enters through the inlet channel 11. The inlet channel 11 contains water treatment filter media such as lightweight ceramsite, quartz sand, anthracite, zeolite, and activated zeolite. These media filter solid impurities such as silt and leaves, reducing turbidity. This step not only improves water quality but also prepares the water for the next purification step, preventing excessive turbidity from clogging subsequent water passages. This reduces the frequency of dredging the first brick 3's purification channel 12, breeding channel 2, outlet channel 13, and the second brick 4's groove 41. A filter screen with a pore size slightly larger than the water treatment filter media particle size is installed between the inlet channel 11 and the purification channel 12. This prevents the filter media from entering the subsequent first brick 3's breeding channel 2, purification channel 12, and outlet channel 13, and also prevents clogging of the permeable pores of the second brick 4. The cross-sectional area of ​​the inlet channel 11 gradually decreases towards the purification channel 12, maintaining flow velocity and allowing for smoother water flow. The first brick body 3 is made of continuously graded dense recycled aggregate concrete, which is intended to save resources and achieve ecological protection. This water-filtering and environmentally friendly water-purifying brick can be installed in parallel to treat large volumes of river rainwater, or in series to circulate and repeatedly treat river rainwater. The bricks can be simply spliced ​​together without the need for masonry, making installation simple. Damage to individual bricks is also easy to maintain and replace.

[0076] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A water-filtering and environmentally friendly water purification brick, characterized in that, Includes a brick body, wherein a water flow channel (1) extending in a first direction and a breeding channel (2) extending in a second direction are provided in the brick body, the breeding channel (2) is connected to the water flow channel (1), and the breeding channel (2) is used to cultivate water purification bacteria; The water flow channel (1) penetrates the brick body along the first direction, and the first direction intersects with the second direction.

2. The water-filtering and environmentally friendly water purification brick according to claim 1, characterized in that, The water flow channel (1) includes an inlet channel (11), a purified water channel (12) and an outlet channel (13) connected in sequence. The water filter environmental protection purified water brick also includes purified water filler, which is disposed in the purified water channel (12). The water purification channel (12) is connected to the breeding channel (2).

3. The water-filtering and environmentally friendly water purification brick according to claim 2, characterized in that, Two water purification channels (12) are provided, and the breeding channel (2) is located between the two water purification channels (12). The two ends of the breeding channel (2) are respectively connected to the two water purification channels (12).

4. The water-filtering and environmentally friendly water purification brick according to claim 2, characterized in that, The brick body includes: The first brick (3) has a placement groove (31) on its top and the water inlet channel (11) and the water outlet channel (13) on its top. The second brick (4) is placed in the placement groove (31); The water purification channel (12) and the breeding channel (2) are formed between the first brick (3) and the second brick (4).

5. The water-filtering and environmentally friendly water purification brick according to claim 4, characterized in that, The second brick (4) is made of a permeable material, and the portion of the second brick (4) located in the water purification channel (12) forms the water purification filler.

6. The water-filtering and environmentally friendly water purification brick according to claim 4, characterized in that, The second brick (4) has a groove (41) on the side facing the first brick (3) that is opposite to the breeding channel (2).

7. The water-filtering and environmentally friendly water purification brick according to claim 6, characterized in that, The second brick (4) is provided with an aeration hole (42), which penetrates the second brick (4) vertically and is used to aerate the breeding channel (2).

8. The water-filtering and environmentally friendly water purification brick according to claim 4, characterized in that, The first brick (3) has a first positioning part (32) in the placement groove (31) and the second brick (4) has a second positioning part (43) that cooperates with the first positioning part (32) at one end facing the first brick (3).

9. The water-filtering and environmentally friendly water purification brick according to claim 8, characterized in that, The first positioning part (32) is a positioning block, and the second positioning part (43) is a positioning groove; The positioning block forms the breeding channel (2) on both sides along the first direction.

10. The water-filtering and environmentally friendly water purification brick according to any one of claims 2-8, characterized in that, The cross-sectional area of ​​the water inlet channel (11) is gradually reduced towards the water purification channel (12).