Artificial live stone for tail water treatment system

Abstract

The invention discloses an artificial live stone for a tail water treatment system, and belongs to the technical field of tail water purification equipment.The artificial live stone comprises a first box body, a second box body and a third box body, the second box body is arranged outside the first box body and is matched with the first box body to form a second cavity; the first cavity is filled with the first filler; the second cavity is filled with the second filler; the first box body is provided with a first opening for communicating the first cavity with the second cavity, the second box body is provided with a second opening for communicating the second cavity with the outside, the first filler forms a first hole, and the second filler forms a second hole; the first filler and the second filler are filled with tail water, so that the tail water can pass through the second open pore, the second pore, the first open pore and the first pore to completely infiltrate the first filler and the second filler, a low-oxygen area is constructed in the first cavity, and an oxygen-enriched area is constructed in the second cavity. By applying the method, the effects of different florae in tail water purification can be better exerted.

Description

Technical Field

[0001] The present application relates to the technical field of tailwater purification equipment, and in particular to an artificial live rock for a tailwater treatment system. Background Art

[0002] The tailwater discharged from aquaculture often contains a large amount of carbon, nitrogen, phosphorus and other elements, which can cause eutrophication of water bodies and seriously pollute the ecological environment of natural waters. Similar to other types of wastewater, the treatment methods of aquaculture tailwater can be roughly divided into three categories: physical, chemical and biological. General methods include flocculation, sedimentation, filtration or adsorption. In actual life, different methods are often used in combination, and eutrophic elements are converted or absorbed. However, the above schemes will have problems such as high energy consumption, high cost and easy to produce secondary pollutants. In recent years, the technology development based on the concept of bacterial and algal symbiosis has shown good research potential and application prospects. Through the cooperation of algae and fungi, carbon reduction, nitrogen reduction and phosphorus removal can be achieved simultaneously to achieve ecological purification of tailwater.

[0003] In the prior art, aerobic bacteria (such as nitrifying bacteria) are generally chosen for fungi in the bacteria-algae symbiosis scheme. However, according to the principle of nitrogen cycle in water bodies, anaerobic bacteria (such as denitrifying bacteria) also play an important role in tailwater purification. At present, only a small number of tailwater purification schemes use aerobic and anaerobic bacteria at the same time, such as passively generating an anaerobic environment through a thick sand system, and then starting the cultivation of anaerobic bacteria. However, the anaerobic environment generated in this way has its own limitations, and it is impossible to dynamically adjust the aerobic / anaerobic culture ratio according to the actual needs of tailwater purification, which results in the tailwater purification efficiency failing to reach the optimal state. In addition, the anaerobic environment formed by this method has low tolerance to the external environment. Once the anaerobic environment is formed, it cannot be easily transferred to new waters, which will significantly increase the difficulty of cultivating anaerobic bacteria in new waters. Summary of the invention

[0004] The present application aims to solve one of the technical problems in the related art to a certain extent. To this end, the present application provides an artificial live rock for a tailwater treatment system.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: an artificial live rock for a tailwater treatment system, the artificial live rock comprising: A first box body, a first chamber is formed inside thereof; A second box body, which is arranged outside the first box body and cooperates with the first box body to form a second chamber; A first filler filled in the first chamber; and a second filler filled in the second chamber; Among them, the first box body is provided with a first opening connecting the first chamber with the second chamber, the second box body is provided with a second opening connecting the second chamber with the outside, and the first filler is formed with a first pore, and the second filler is formed with a second pore, so that the tail water can pass through the second opening, the second pore, the first opening and the first pore to completely infiltrate the first filler and the second filler and construct a low oxygen area in the first chamber and an oxygen-rich area in the second chamber.

[0006] The application of the present invention has the following beneficial effects: a first box body and a second box body with a porous structure are provided, and a first filler and a second filler are filled in the first chamber and the second chamber respectively, and the tail water can be completely infiltrated into the first filler and the second filler through the second opening, the second pore, the first opening and the first pore by providing the first opening, the second opening, the first pore and the second pore. The oxygen concentration in the internal space of the artificial living rock gradually decreases from the outside to the inside, and the sizes of the first opening, the second opening, the first pore and the second pore can be designed to construct a low oxygen area in the first chamber, and an oxygen-rich area in the second chamber and outside the second box body. The low oxygen area is suitable for the attachment and growth of anaerobic bacteria, and the oxygen-rich area is suitable for the attachment and growth of aerobic bacteria. At the same time, since the dimensions of the first box body and the second box body can be designed in advance, the appropriate culture ratio of aerobic bacteria and anaerobic bacteria can be calculated according to the purification needs of the actual pollutants in the tail water, and then the first box body and the second box body can be designed with a suitable size ratio, so that the size of the environmental space suitable for the growth of aerobic bacteria and anaerobic bacteria can be actively controlled, and then the generation of aerobic bacteria and anaerobic bacteria can be indirectly controlled to obtain a better tail water purification treatment effect. In addition, since the anaerobic zone of the artificial live rock is at the center, after we cultivate the anaerobic bacteria in the first chamber, while maintaining the stability of the anaerobic environment inside the artificial live rock, the artificial live rock can be moved to the tail water area to be treated, so that the anaerobic bacteria can more quickly play a role in purifying pollutants in the new water area, reduce the regeneration of the anaerobic environment and the re-cultivation of anaerobic bacteria, and optimize the tail water purification efficiency.

[0007] Optionally, the first filler includes biochemical cotton, and the second filler includes volcanic stone and / or bacterial house particles.

[0008] Optionally, the first box body includes a first bottom plate, a first surrounding frame and a first cover plate, the first bottom plate and the first cover plate are respectively arranged at the bottom and the top of the first surrounding frame, and the first bottom plate, the first surrounding frame and the first cover plate are enclosed to form the first chamber; the second box body includes a second bottom plate, a second surrounding frame and a second cover plate, the second bottom plate and the second cover plate are respectively arranged at the bottom and the top of the second surrounding frame, and the second bottom plate, the second surrounding frame and the second cover plate are enclosed outside the first box body to form the second chamber.

[0009] Optionally, the first openings are arranged on the first frame and distributed in a matrix, and the second openings are arranged on the second frame and distributed in a matrix; the number of the first openings and the second openings is the same, and the aperture of the first opening is smaller than the aperture of the second opening.

[0010] Optionally, the artificial living rock further includes a positioning structure disposed in the second chamber, and the positioning structure is used to position the first box body in the second box body.

[0011] Optionally, the positioning structure includes two first sliding rods slidably arranged in the second box body and two second sliding rods slidably arranged in the second box body, and the first sliding rods and the second sliding rods are perpendicular to each other; the outer surface of the first box body is provided with a first card slot adapted to the first sliding rod and a second card slot adapted to the second sliding rod, the two first sliding rods are respectively located on both sides of the first box body and are both snapped into the first card slots, and the two second sliding rods are respectively located on both sides of the second box body and are both snapped into the second card slots.

[0012] Optionally, the artificial living stone also includes an intermediate box body arranged between the first box body and the second box body, and the intermediate box body cooperates with the first box body and the second box body to divide the second chamber into a second inner chamber and a second outer chamber, the second inner chamber is located between the first box body and the intermediate box body, and the second outer chamber is located between the second box body and the intermediate box body; the second filler is filled in the second outer chamber, and the artificial living stone also includes a third filler arranged in the second inner chamber, and the intermediate box body is provided with a third opening for connecting the second inner chamber and the second outer chamber, and the oxygen concentration of the second inner chamber is between the oxygen concentration of the first chamber and the oxygen concentration of the second outer chamber.

[0013] Optionally, the artificial living rock also includes an installation box formed with an installation cavity, the installation box has a water inlet for introducing tail water into the installation cavity and a water outlet for discharging tail water from the installation cavity, and the second box body is fixedly disposed in the installation cavity.

[0014] Optionally, the installation box includes: a box body, which includes a base plate and side panels arranged around the base plate, the base plate and the side panels enclose the installation cavity; a transverse partition plate, which is arranged transversely in the installation cavity and is provided with a positioning hole, and the second box body is fixed in the installation cavity through the positioning hole; and a longitudinal partition plate, which is arranged longitudinally in the installation cavity, the longitudinal partition plate is parallel to one of the side panels and is spaced apart to form a drainage channel therebetween, and the bottom end of the longitudinal partition plate is spaced apart from the transverse partition plate to form an overflow port; wherein the upper end of the drainage channel forms the water inlet, and the heights of the water inlet, water outlet and overflow port decrease successively.

[0015] Optionally, the water outlet is formed at the upper end of one of the side panels by providing a groove extending along the width direction thereof, and the box body further includes a guide plate provided at the water outlet.

[0016] These features and advantages of the present application will be disclosed in detail in the following specific embodiments and drawings. The best embodiments or means of the present application will be described in detail in conjunction with the drawings, but they are not intended to limit the technical solutions of the present application. In addition, there are multiple features, elements, and components that appear in each of the following texts and drawings, and different symbols or numbers are marked for convenience, but they all represent components with the same or similar structures or functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application is further described below in conjunction with the accompanying drawings: Figure 1 A schematic diagram of the structure of an artificial live rock for a tailwater treatment system provided in Example 1 of the present application; Figure 2 It is a longitudinal cross-sectional view of the artificial living rock (without the first cover plate and the second cover plate); Figure 3 A schematic diagram of the internal structure of the artificial living rock provided in Example 1; Figure 4 A schematic diagram of the structure of the installation box in the artificial living rock provided in Example 1; Figure 5 A transverse cross-sectional view of the artificial living rock provided in Example 2; Figure 6 This is a longitudinal cross-sectional view of the artificial living rock provided in Example 3 (the first cover plate and the second cover plate are not provided).

[0018] Among them, 1. the first box body; 10. the first chamber; 11. the first opening; 12. the first bottom plate; 120. the positioning groove; 13. the first surrounding frame; 14. the first cover plate; 2. the second box body; 20. the second chamber; 21. the second opening; 22. the second bottom plate; 23. the second surrounding frame; 24. the second cover plate; 3. the installation box; 30. the side plate; 31. the horizontal partition; 32. the longitudinal partition; 33. the overflow; 34. the water inlet; 36. the water outlet; 37. the guide plate; 38. the positioning hole; 4. the first sliding rod; 5. the second sliding rod; 6. the middle box body; 60. the second inner chamber; 61. the second outer chamber. DETAILED DESCRIPTION

[0019] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments based on the embodiments are intended to be used to explain the present application and cannot be understood as limiting the present application.

[0020] References to "one embodiment" or "an example" or "an example" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment itself may be included in at least one embodiment disclosed in the present application. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.

[0021] It has been found through research that aerobic bacteria and anaerobic bacteria can play an important role in the process of tailwater purification. For example, heterotrophic bacteria in aerobic bacteria can decompose organic matter and obtain energy in an oxygen-rich environment or heterotrophic bacteria in anaerobic bacteria in a low-oxygen environment. Putting them into the tailwater can decompose organic matter such as fish food and fish feces to obtain substances such as ammonia nitrogen and amino groups. The nitrite-transforming bacteria in aerobic bacteria can convert the above-mentioned ammonia nitrogen and amino substances into nitrites. Nitrate bacteria in aerobic bacteria can convert the above-mentioned nitrites into nitrates. Denitrifying bacteria in anaerobic bacteria can further convert the above-mentioned nitrates into nitrogen gas (non-harmful gas and can be absorbed by aquatic plants or algae to produce oxygen). It can be seen from the nitrogen cycle process in the above-mentioned aquaculture water body that when a fungal biological purification treatment scheme is used for tailwater, if there are no anaerobic bacteria or the amount of anaerobic bacteria is too small relative to aerobic bacteria, nitrates will not be converted into nitrogen gas, which will cause the nitrate content in the water body to be high, affecting the growth of fish. In order to solve the above problems, the present application provides an artificial live rock for a tailwater treatment system.

[0022] Embodiment 1: This embodiment provides an artificial live rock for a tailwater treatment system, such as Figure 1 , Figure 2 and Figure 3As shown in , the artificial living stone includes a first box body 1, a second box body 2, a first filler (not shown in the figure) and a second filler (not shown in the figure). Among them, the first box body 1 forms a first chamber 10 inside, the second box body 2 is arranged outside the first box body 1, and the second box body 2 cooperates with the first box body 1 to form a second chamber 20. The first filler is filled in the first chamber 10, and the second filler is filled in the second chamber 20. In this embodiment, the first box body 1 is provided with a first opening 11 that connects the first chamber 10 with the second chamber 20, the second box body 2 is provided with a second opening 21 that connects the second chamber 20 with the outside, and the first filler is formed with a first pore, and the second filler is formed with a second pore, so that the tail water can completely infiltrate the first filler and the second filler through the second opening 21, the second pore, the first opening 11 and the first pore, and a low oxygen area is constructed in the first chamber 10 and an oxygen-rich area is constructed in the second chamber 20.

[0023] A first box body 1 and a second box body 2 of a porous structure are provided, and a first filler and a second filler are filled in the first chamber 10 and the second chamber 20, respectively. By providing the first opening 11, the second opening 21, the first pore and the second pore, the tail water can completely infiltrate the first filler and the second filler through the second opening 21, the second pore, the first opening 11 and the first pore. The oxygen concentration in the internal space of the artificial living stone gradually decreases from the outside to the inside. By designing the sizes of the first opening 11, the second opening 21, the first pore and the second pore, a low oxygen area can be constructed in the first chamber 10, and an oxygen-rich area can be constructed in the second chamber 20 and outside the second box body 2. The low oxygen area is suitable for the attachment and growth of anaerobic bacteria, and the oxygen-rich area is suitable for the attachment and growth of aerobic bacteria. At the same time, since the dimensions of the first box body 1 and the second box body 2 can be designed in advance, the appropriate culture ratio of aerobic bacteria and anaerobic bacteria can be calculated according to the purification needs of the actual pollutants in the tail water, and then the first box body 1 and the second box body 2 can be designed with a suitable size ratio, so that the size of the environmental space suitable for the growth of aerobic bacteria and anaerobic bacteria can be actively controlled, and then the generation of aerobic bacteria and anaerobic bacteria can be indirectly controlled to obtain a better tail water purification treatment effect.

[0024] In addition, since the anaerobic zone of the artificial living rock is located at the very center, after the anaerobic bacteria are cultivated in the first chamber 10, the artificial living rock can be moved to the tail water area to be treated while maintaining the stability of the anaerobic environment inside the artificial living rock, thereby more quickly exerting the anaerobic bacteria's purification effect on pollutants in the new water area, reducing the regeneration of the anaerobic environment and the re-cultivation of anaerobic bacteria, and optimizing the tail water purification efficiency.

[0025] It should be noted that the "constructing a low oxygen area in the first chamber 10 and constructing an oxygen-rich area in the second chamber 20" described in this embodiment does not mean that the first chamber 10 is completely constructed as a low oxygen area or the second chamber 20 is completely constructed as an oxygen-rich area, but that part of the space in the second chamber 20 (relatively the outer space) is constructed as an oxygen-rich area, and at the same time, part of the space in the first chamber 10 (relatively the inner space) is constructed as a low oxygen area (including an anaerobic area). That is, the oxygen concentration in the internal space of the artificial living stone gradually decreases from the outside to the inside. The above design can make a variety of different anaerobic bacteria and aerobic bacteria evenly distributed. In practical applications, the oxygen concentration in the low oxygen area is generally controlled below 1.7 mg / L, and the oxygen concentration in the oxygen-rich area is controlled below 9 mg / L.

[0026] The above structural design can make the artificial living rock an ideal matrix for the coexistence of aerobic bacteria (such as nitrifying bacteria) and anaerobic bacteria (such as denitrifying bacteria). In the nitrogen cycle of water bodies, aerobic bacteria use oxygen to decompose organic matter (such as fish excrement and food residues), and then aerobic bacteria convert toxic ammonia into nitrite through nitrification, and further oxidize it into nitrate. At the same time, anaerobic bacteria reduce nitrate to nitrogen gas through denitrification in a low-oxygen environment, which can effectively treat nutrients and pollutants in water.

[0027] The second filler in this embodiment includes volcanic rocks and bacteria house particles, and the second pores include both the intervals between adjacent volcanic rocks or bacteria house particles due to irregular shapes, and the penetrating pores formed inside a single volcanic rock or bacteria house particle. In the process of flowing into the artificial living stone, the tail water can flow through the intervals between adjacent volcanic rocks or bacteria house particles, and can also flow through the internal pores of a single volcanic rock or bacteria house particle. It is easy to understand that the volcanic rocks or bacteria house particles are distributed with honeycomb pores, and the above honeycomb pores can increase the area for fungi to attach and grow. The first filler in this embodiment includes biochemical cotton, and the first pores are sparse and dense pores formed inside the biochemical cotton.

[0028] The first box body 1 in this embodiment includes a first bottom plate 12, a first frame 13 and a first cover plate 14, the first bottom plate 12 and the first cover plate 14 are respectively arranged at the bottom end and the top end of the first frame 13, and the first bottom plate 12, the first frame 13 and the first cover plate 14 enclose a first chamber 10. The second box body 2 includes a second bottom plate 22, a second frame 23 and a second cover plate 24, the second bottom plate 22 and the second cover plate 24 are respectively arranged at the bottom end and the top end of the second frame 23, and the second bottom plate 22, the second frame 23 and the second cover plate 24 are enclosed outside the first box body 1 to form a second chamber 20. Specifically in this embodiment, as Figure 3As shown in , a positioning groove 120 is provided on the inner wall of the second bottom plate 22, and the bottom of the first box body 1 can be inserted and positioned in the positioning groove 120 during assembly. Optionally, other positioning structures can also be used to position and install the first box body 1 in the second box body 2.

[0029] The first openings 11 in this embodiment are arranged on the first enclosure 13 and are distributed in a matrix, and the second openings 21 are arranged on the second enclosure 23 and are distributed in a matrix. At the same time, the number of the first openings 11 and the second openings 21 is the same, and the aperture of the first opening 11 is smaller than the aperture of the second opening 21. It is easy to understand that the aperture of the first opening 11 and the aperture of the second opening 21 can be set according to the preliminary experimental data, and the aperture of the first opening 11 and the aperture of the second opening 21 can be designed so that the tail water has a suitable water flow rate and microbial attachment effect in the artificial living stone. For example, the first box body 1 in this embodiment is a square box with a length, width and height of 5 cm, and the second box body 2 is a square box with a length, width and height of 9 cm. The first box body 1 has a square hole with a width of 0.5 mm, and the second box body 2 has a square hole with a width of 1 mm.

[0030] In this embodiment, the first box body 1 and the second box body 2 are both made of biodegradable polylactic acid material through 3D printing technology, which is convenient for low-cost, batch manufacturing of the first box body 1 and the second box body 2, and also convenient for changing the design dimensions of the first box body 1 and the second box body 2.

[0031] like Figure 4 As shown in , the artificial living stone also includes an installation box 3 formed with an installation cavity, the installation box 3 has a water inlet 34 for introducing tail water into the installation cavity and a water outlet 36 for discharging tail water from the installation cavity, and the second box body 2 is fixedly arranged in the installation cavity. When the tail water flows into the installation cavity from the water inlet 34, it can gradually infiltrate the artificial living stone, and after the tail water is purified by aerobic bacteria and anaerobic bacteria in the artificial living stone, the treated tail water is discharged through the water outlet 36.

[0032] Furthermore, the installation box 3 in this embodiment includes a box body and a transverse partition 31 and a longitudinal partition 32 arranged in the box body. Among them, the box body includes a base plate and a side plate 30 arranged around the base plate, and the base plate and the side plate 30 enclose a mounting cavity. The transverse partition 31 is arranged transversely in the mounting cavity and is provided with a positioning hole 38, and the second box body 2 is fixedly arranged in the mounting cavity through the positioning hole 38. Specifically, the size of the positioning hole 38 is designed to be substantially the same as the outer peripheral size of the second box body 2, and the second box body 2 and the first box body 1 fixed in the second box body 2 can be fixedly positioned in the mounting cavity by directly inserting the second box body 2 into the positioning hole 38. The longitudinal partition 32 is arranged longitudinally in the mounting cavity, and the longitudinal partition 32 is parallel to a side plate 30 and is arranged at intervals to form a drainage channel between the two, and the bottom end of the longitudinal partition 32 is spaced from the transverse partition 31 to form an overflow port 33. The upper end of the drainage channel forms the aforementioned water inlet 34, and the heights of the water inlet 34, the water outlet 36 and the overflow 33 are successively reduced. Through the above structural design, the tail water to be treated can first flow directly into the bottom of the installation cavity through the water inlet 34, and then the tail water gradually rises from low to high and flows into the accommodating cavity through the overflow 33, and then the tail water to be treated can better infiltrate the interior of the second box body 2 and the first box body 1. After the tail water to be treated flows to the water outlet 36, it is discharged from the water outlet 36. Through the above structural design, the tail water can flow into the installation cavity in an overflowing manner from bottom to top, which can reduce the noise of the water flow and make the water flow more gentle, which is conducive to the growth of microorganisms on the artificial living stone. It can also reduce the direct impact of the tail water flow on the artificial living stone, and avoid the bacteria and microorganisms on the surface of the artificial living stone being washed away due to the excessively fast water flow. At the same time, it can ensure that the tail water flow contacted by the artificial living stone is a flowing water flow, which can increase the dissolved oxygen in the water, which is conducive to the growth of aerobic bacteria in the artificial living stone. In addition, the overflow design can also be used to prevent water from directly impacting the artificial live rock, thereby reducing the accumulation of sediment on the artificial live rock and maintaining the cleanliness and effectiveness of the artificial live rock.

[0033] Furthermore, the water outlet 36 in this embodiment is constructed by the following structure: the water outlet 36 is formed at the upper end of a side panel 30 by setting a groove extending along its width direction. Optionally, a guide plate 37 can also be set at the water outlet 36 to guide the treated tail water to be discharged to the outside.

[0034] The artificial live rock provided in this embodiment can be used in household fish tanks, aquariums and other indoor fish breeding water tanks to purify the tail water in the water tank. The size of the first box body 1 and the second box body 2 can be conveniently adjusted according to the amount of tail water, and the size ratio of the first box body 1 and the second box body 2 can be designed accordingly, so that the ratio of aerobic bacteria and anaerobic bacteria can be actively intervened and controlled to obtain a better fungus biological purification effect.

[0035] Embodiment 2: This embodiment also provides an artificial living stone. The difference between this embodiment and the above embodiment is that the positioning structure used to position the first box body 1 in the second box body 2 in this embodiment is different from the positioning structure in the embodiment 1. Specifically, Figure 5 As shown in the figure, the positioning structure in this embodiment includes two first sliding rods 4 slidably arranged in the second box body 2 and two second sliding rods 5 slidably arranged in the second box body 2, and the first sliding rods 4 and the second sliding rods 5 are perpendicular to each other; the outer surface of the first box body 1 is provided with a first card groove adapted to the first sliding rod 4 and a second card groove adapted to the second sliding rod 5, the two first sliding rods 4 are respectively located on both sides of the first box body 1 and are both inserted into the first card groove, and the two second sliding rods 5 are respectively located on both sides of the second box body 2 and are both inserted into the second card groove.

[0036] Specifically, a slide groove can be provided on the inner wall of the first box body 1 and the second box body 2, and the ends of the first sliding rod 4 and the second sliding rod 5 can be slidably arranged in the above-mentioned slide groove. At the same time, wear-resistant materials such as rubber can be provided at the ends of the first sliding rod 4 and the second sliding rod 5, so that the first sliding rod 4 and the second sliding rod 5 require the operator to apply a large force from the outside to make them slide. The height of the second sliding rod 5 can be designed to be slightly higher than the height of the first sliding rod 4, so that the sliding of the two will not interfere with each other. Through the above design, when it is necessary to replace the first box body 1 of different sizes (it is necessary to set the first card slot and the second card slot at the set height of the first box body 1 of different sizes during manufacturing). The new first box body 1 is placed between the first sliding rod 4 and the second sliding rod 5, and then the first sliding rod 4 and the second sliding rod 5 are respectively inserted into the first card slot and the second card slot, and the first box body 1 can be positioned in the second box body 2 by the first sliding rod 4 and the second sliding rod 5. The design of the above positioning structure can easily replace the first box body 1 of different sizes.

[0037] Embodiment 3: This embodiment also provides an artificial living stone, combined with Figure 2 and Figure 6 As shown in , the difference between this embodiment and the above embodiment is that the artificial living stone provided in this embodiment further includes an intermediate box body 6 disposed between the first box body 1 and the second box body 2. The intermediate box body 6 cooperates with the first box body 1 and the second box body 2 to separate the second chamber 20 into a second inner chamber 60 and a second outer chamber 61, the second inner chamber 60 is located between the first box body 1 and the intermediate box body 6, and the second outer chamber 61 is located between the second box body 2 and the intermediate box body 6.

[0038] At the same time, the second filler is filled in the second outer chamber 61, and the artificial living stone also includes a third filler arranged in the second inner chamber 60. The intermediate box body 6 is provided with a third opening for connecting the second inner chamber 60 and the second outer chamber 61, and the oxygen concentration of the second inner chamber 60 is between the oxygen concentration of the first chamber 10 and the oxygen concentration of the second outer chamber 61. By providing the intermediate box body 6, the uniformity of the change of the oxygen concentration from the outside to the inside of the artificial living stone can be further improved, thereby providing a more suitable growth environment for various types of bacteria. It is easy to understand that the third filler can be one or a combination of volcanic rocks or bacterial house particles. The particle size of the third filler can be slightly smaller than the particle size of the second filler.

[0039] The number of the third openings in this embodiment is the same as the number of the first openings 11 or the second openings 21, and the apertures of the third openings are between the first openings 11 and the second openings 21. It is easy to understand that the structure of the intermediate box body 6 is similar to that of the first box body 1 and the second box body 2, but the size of the intermediate box body 6 is between that of the first box body 1 and the second box body 2.

[0040] The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Those skilled in the art should understand that the present application includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present application will be included in the scope of the claims.

Claims

1. An artificial live rock for a tailwater treatment system, characterized in that: The artificial living rock comprises: A first box body (1), wherein a first chamber (10) is formed inside the box body; A second box body (2), which is arranged outside the first box body (1) and cooperates with the first box body (1) to form a second chamber (20); a first filler filled in the first chamber (10); and a second filler filled in the second chamber (20); The first box body (1) is provided with a first opening (11) connecting the first chamber (10) with the second chamber (20), the second box body (2) is provided with a second opening (21) connecting the second chamber (20) with the outside, and the first filler is formed with a first pore, and the second filler is formed with a second pore, so that tail water can pass through the second opening (21), the second pore, the first opening (11) and the first pore to completely infiltrate the first filler and the second filler and construct a low-oxygen area in the first chamber (10) and an oxygen-rich area in the second chamber (20).

2. The artificial living stone according to claim 1, characterized in that: The first filler includes biochemical cotton, and the second filler includes volcanic stone and / or bacterial house particles.

3. The artificial living stone according to claim 1, characterized in that: The first box body (1) comprises a first bottom plate (12), a first surrounding frame (13) and a first cover plate (14); the first bottom plate (12) and the first cover plate (14) are respectively arranged at the bottom end and the top end of the first surrounding frame (13); and the first bottom plate (12), the first surrounding frame (13) and the first cover plate (14) together form the first chamber (10); The second box body (2) comprises a second bottom plate (22), a second surrounding frame (23) and a second cover plate (24); the second bottom plate (22) and the second cover plate (24) are respectively arranged at the bottom end and the top end of the second surrounding frame (23); and the second bottom plate (22), the second surrounding frame (23) and the second cover plate (24) are enclosed outside the first box body (1) to form the second chamber (20).

4. The artificial living stone according to claim 3, characterized in that: The first openings (11) are arranged on the first surrounding frame (13) and are distributed in a matrix, and the second openings (21) are arranged on the second surrounding frame (23) and are distributed in a matrix; The number of the first openings (11) and the number of the second openings (21) are the same, and the diameter of the first openings (11) is smaller than the diameter of the second openings (21).

5. The artificial living stone according to any one of claims 1 to 4, characterized in that: The artificial living rock further comprises a positioning structure arranged in the second chamber (20), wherein the positioning structure is used to position the first box body (1) in the second box body (2).

6. The artificial living stone according to claim 5, characterized in that: The positioning structure comprises two first sliding rods (4) slidably arranged in the second box body (2) and two second sliding rods (5) slidably arranged in the second box body (2), wherein the first sliding rods (4) and the second sliding rods (5) are perpendicular to each other; The outer surface of the first box body (1) is provided with a first card slot adapted to the first sliding rod (4) and a second card slot adapted to the second sliding rod (5); the two first sliding rods (4) are respectively located on both sides of the first box body (1) and are both inserted into the first card slot; the two second sliding rods (5) are respectively located on both sides of the second box body (2) and are both inserted into the second card slot.

7. The artificial living stone according to any one of claims 1 to 4, characterized in that: The artificial living stone further comprises an intermediate box body (6) arranged between the first box body (1) and the second box body (2); the intermediate box body (6) cooperates with the first box body (1) and the second box body (2) to separate the second chamber (20) into a second inner chamber (60) and a second outer chamber (61); the second inner chamber (60) is located between the first box body (1) and the intermediate box body (6), and the second outer chamber (61) is located between the second box body (2) and the intermediate box body (6); The second filler is filled in the second outer chamber (61), the artificial living stone further comprises a third filler arranged in the second inner chamber (60), the intermediate box body (6) is provided with a third opening for connecting the second inner chamber (60) and the second outer chamber (61), and the oxygen concentration of the second inner chamber (60) is between the oxygen concentration of the first chamber (10) and the oxygen concentration of the second outer chamber (61).

8. The artificial living stone according to any one of claims 1 to 4, characterized in that: The artificial living rock further comprises an installation box (3) formed with an installation cavity, the installation box (3) having a water inlet (34) for introducing tail water into the installation cavity and a water outlet (36) for discharging tail water from the installation cavity, and the second box body (2) is fixedly arranged in the installation cavity.

9. The artificial living stone according to claim 8, characterized in that: The installation box (3) comprises: A box body, comprising a base plate and four side plates (30) arranged around the base plate, wherein the base plate and the side plates (30) enclose the installation cavity; a transverse partition (31), which is arranged transversely in the installation cavity and is provided with a positioning hole (38), and the second box body (2) is fixedly arranged in the installation cavity through the positioning hole (38); and a longitudinal partition (32) arranged longitudinally in the installation cavity, the longitudinal partition (32) being parallel to and spaced apart from one of the side plates (30) to form a drainage channel therebetween, and a bottom end of the longitudinal partition (32) being spaced apart from the transverse partition (31) to form an overflow port (33); The water inlet (34) is formed at the upper end of the drainage channel, and the heights of the water inlet (34), the water outlet (36) and the overflow (33) decrease in sequence.

10. The artificial living stone according to claim 9, characterized in that: The water outlet (36) is formed at the upper end of one of the side plates (30) by providing a groove extending in the width direction thereof, and the box body further comprises a guide plate (37) provided at the water outlet (36).

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