Eutrophicated livestock and poultry breeding water body treatment device based on modified biomass charcoal

Abstract

The invention is applicable to the technical field of water treatment, and particularly relates to a modified biomass charcoal-based eutrophicated livestock and poultry breeding water treatment device which comprises a square treatment box body, and a purification box is arranged in the square treatment box body in a supporting manner; a filter plate is arranged in an upper inner cavity of the purification box, and a plurality of purification assemblies are arranged in a lower inner cavity of the purification box; a bottom end outlet is formed in the bottom end of the purification box; the other side of the water collecting tank is connected with a water inlet pipe and a water return pipe; the other end of the water inlet pipe is connected with the purification box, and the other end of the water return pipe extends into the square treatment box body and is connected with the communicating pipe; the bottom outlet is connected with a water return pipe; the water quality monitoring assembly is used for monitoring water discharged from the purification box. The water body is pre-filtered before entering the purification box, the eutrophicated livestock and poultry breeding water body is specifically treated, biomass charcoal is modified and optimized by applying a biomass charcoal material, and the performance of treating nitrogen and phosphorus in the water body is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of water treatment, and in particular relates to a eutrophic livestock and poultry breeding water treatment device based on modified biochar. Background Art

[0002] With the rapid development of animal husbandry, environmental problems in farms and their surrounding areas have become increasingly prominent, becoming one of the main factors restricting the further development of animal husbandry.

[0003] Livestock and poultry excrement that has not been harmlessly treated flows through surface runoff, such as rainwater on rainy days, into canals and eventually into rivers and lakes, causing excessive nitrogen, phosphorus and other elements in the water, excessive oxidation of the water, and a large number of organic matter breeding, which pollutes the water, causes a large number of aquatic organisms to die, and affects the balance of the water ecological environment. According to the governance principles, governance measures can usually be divided into three categories: physical measures, chemical measures, and biological measures; among them, the input of chemical agents will cause irreversible damage to the original ecosystem; although biological measures have a short purification cycle, the bacteria are lost quickly and do not have ideal impact resistance; Among the current technologies related to physical measures, the problem of poor water purification effect is mainly reflected in poor adsorption effect and lack of pretreatment of water bodies. Summary of the invention

[0004] The purpose of the embodiment of the present invention is to provide a eutrophic livestock and poultry breeding water treatment device based on modified biochar, aiming to solve the problem that the existing livestock and poultry breeding wastewater treatment process has a poor treatment effect on the breeding water.

[0005] To achieve the above object, the present invention provides the following technical solutions.

[0006] The present invention provides a eutrophic livestock and poultry breeding water treatment device based on modified biochar, comprising: A square processing box body is provided inside which a purification box is supported; a filter plate is provided in the upper inner cavity of the purification box, and a plurality of purification components are provided in the lower inner cavity of the purification box; a bottom outlet is provided at the bottom end of the purification box; A water collecting box, one side of which is provided with a water collecting pipe; the other side of the water collecting box is respectively connected with an inlet pipe and a return pipe; the other end of the inlet pipe is connected with a purification box arranged in a square treatment box body, the other end of the return pipe extends into the square treatment box body, and the return pipe located in the square treatment box body is located below the purification box, and the other end of the return pipe is connected with the connecting pipe; the bottom outlet is connected with the return pipe, and the water discharged from the purification box enters the return pipe; A water quality monitoring component is used to monitor the water discharged from the purification box. The water quality monitoring component is arranged in the bottom inner cavity of the square treatment box.

[0007] Furthermore, a cleaning rod group is vertically fixedly arranged in the water collecting box, and the cleaning rod group divides the inside of the water collecting box into a first cavity and a second cavity. The cleaning rod group is located on the filtering surface of the movable filter plate. When the movable filter plate changes its vertical position, the cleaning rod group cleans the filtering surface of the movable filter plate. The cleaning rod group includes an upper support plate, and a plurality of lower support rods are arranged at equal intervals at the lower end of the upper support plate, and a plurality of cleaning rods are arranged on each lower support rod, and the cleaning rods on adjacent lower support rods are staggered with each other in the vertical direction. When the movable filter plate changes its vertical position, the cleaning rods can clean the filter residue attached to the filter surface of the movable filter plate, and the staggered cleaning rods can make the cleaning range of the filter surface cover a wider range, that is, the filter surface of the movable filter plate which is a vertical rectangular surface corresponding to the area between two adjacent lower support rods can be fully cleaned.

[0008] Furthermore, the vertical position change of the movable filter plate is driven by an eccentric wheel mechanism; The eccentric wheel mechanism includes: The eccentric wheel is eccentrically mounted on the driving shaft; one end of the driving shaft is drivingly connected to the output shaft of the forward and reverse servo motor; The lifting frame is a square frame structure, and the square frame is slidably sleeved on the eccentric wheel; a back rod is arranged on the non-filtering surface of the movable filter plate, and the bottom end of the back rod is fixedly connected to the top rod, and the top rod is fixedly connected to the lifting frame.

[0009] Furthermore, a slag collecting chamber is provided below the first chamber, and the slag collecting chamber is connected to the first chamber through a circular chamber. The circular chamber is placed horizontally, and a screw propeller is coaxially rotated in the circular chamber, and the drive shaft is coaxially fixedly connected to the screw propeller.

[0010] Furthermore, a top inlet is provided at the top of the purification box, and the top inlet is connected to the other end of the water inlet pipe; A first flange gate valve is provided on the water inlet pipe; A second flange gate valve is provided on the water return pipe; A third flange gate valve is arranged on the connecting pipe, and the third flange gate valve is used to control the opening and closing of the connecting pipe.

[0011] Furthermore, a water quality monitoring component is arranged on the bottom outlet; the water quality monitoring component includes a water quality sensor, an electric valve and an equal-diameter straight-through joint, wherein the electric valve and the water quality sensor are both installed on the bottom outlet through the equal-diameter straight-through joint, the electric valve is used to control the on-off of the bottom outlet, the water quality sensor is connected to the electric valve through a circuit board circuit, and the water quality sensor is arranged in a sensor housing to provide protection for the water quality sensor; the sensor housing and the bottom outlet are connected through an equal-diameter straight-through joint, so that the water body at the bottom outlet can enter the sensor housing, so that the water body can be monitored by using the water quality sensor, and the action of the electric valve is controlled according to the data feedback from the water quality processor, and the opening and closing of the bottom outlet is realized based on the electric valve.

[0012] Further, the purification box is fixedly mounted in the square treatment box body by supporting angle plates; The purification component includes a flat plate, which is fixedly mounted on the inner wall of the purification box through stainless steel angle brackets. A sliding track is fixedly arranged on the flat plate, and a plurality of modified biomass carbon filter rods are supported and mounted on the sliding track. The plurality of modified biomass carbon filter rods arranged in the purification box can slow down the water flow speed and improve the purification effect.

[0013] Furthermore, a flip door corresponding to the purification component is provided on the side wall of the purification box, and the modified biochar filter rod of the purification component can be conveniently replaced by opening the flip door; the flip door includes a sealing strip, a purification box door shaft and a flip plate, wherein the purification box door shaft is arranged on the side wall of the purification box, and the flip plate is connected to the purification box door shaft, and the flip plate can be opened to facilitate the removal of the purification component from the purification box, and at the same time, the used modified biochar can be converted into carbon fertilizer for farmland fertilization, thereby realizing multi-level energy utilization; the sealing strip is wrapped around the outer ring of the flip plate, and the setting of the sealing strip ensures the sealing of the purification box and improves the purification efficiency.

[0014] Furthermore, the modified biomass carbon filter rod is filled with an adsorption filler, and the preparation method of the adsorption filler comprises the following steps: Wash and air-dry the rice husk, then crush it and weigh 300g of rice husk powder; After the biomass continuous pyrolysis reaction platform reaches 500°C and waits for ten minutes, feed the material; After carbonization, cool naturally, take out and grind through a 150-mesh sieve, wash repeatedly with distilled water, dry to constant weight, seal in a sealed bag, and store for later use; Take 2g of dried biomass raw material, set the solution immersion concentration to 1.0mol / L, immerse the biomass raw material in the solution at a ratio of 1:10 between the mass of the biomass raw material and the volume of the magnesium chloride solution, mix and oscillate for 24h at a speed of 150r / min, filter, dry the obtained solid mixture at 80°C, then put it into a sealed container, and pyrolyze it at 550°C in a muffle furnace for 2h; rinse with deionized water after cooling, dry and grind through a 150-mesh sieve to obtain modified biochar.

[0015] Compared with the prior art, the beneficial effects of the eutrophication livestock and poultry breeding water treatment device based on modified biochar of the present invention are: First, the present invention provides a filter plate in the upper inner cavity of the purification box, and the filter plate can filter suspended solids in the water body to achieve a solid-liquid separation effect; a plurality of purification components are provided in the lower inner cavity of the purification box, and the water entering the purification box through the top inlet is first filtered through the filter plate, and then the water body is adsorbed and treated by the purification component to purify the water body; the purified water body is discharged through the bottom outlet, wherein the water quality monitoring component detects the water body discharged from the bottom outlet, monitors key parameters such as nitrogen and phosphorus content inside the box in real time, and combines data analysis to compare whether the discharge standard is met, thereby controlling the opening and closing of the electric valve, thereby improving the purification effect of eutrophic water bodies; Second, the present invention specifically treats eutrophic livestock and poultry breeding water bodies, uses biomass charcoal materials, modifies and optimizes the biomass charcoal, and improves the performance of treating nitrogen and phosphorus in water bodies; Third, when the eutrophic water passes through the purification box of the present invention, the modified biomass carbon filter rod and its filler can absorb nitrogen and phosphorus in the water, and the purified water still flows back to the soil, forming a large cycle; and the biomass carbon absorbs the nitrogen and phosphorus contained in the eutrophic water in the soil, forming biomass carbon fertilizer and returning to the soil, forming a small cycle; the formation of large and small cycles incorporates agricultural production into the cycle of the ecosystem, so that the entire production process enters a virtuous cycle track of sustainable development, and realizes the multi-level recycling of material energy; Fourth, when the eccentric wheel mechanism provided by the present invention is in use, the driving shaft is rotated by the forward and reverse servo motor. On the one hand, the driving shaft drives the spiral push paddle to rotate, so as to push the filtered impurities in the circular cavity to avoid the accumulation of filtered impurities at the slag collecting port; on the other hand, the driving shaft drives the eccentric wheel to rotate, so as to push the lifting frame to move up and down, so as to push the movable filter plate to move up and down, and the filtering surface of the movable filter plate is synchronously cleaned by the cleaning rod group. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first-view structural diagram of a eutrophication livestock and poultry breeding water treatment device based on modified biochar according to the present invention; Figure 2This is a second perspective structural diagram of the eutrophication livestock and poultry breeding water treatment device based on modified biochar of the present invention; Figure 3 A schematic diagram of the structure of the purification box provided by the present invention; Figure 4 Another structural view of the purification box provided by the present invention; Figure 5 A schematic diagram of the structure of a water quality monitoring component provided by the present invention; Figure 6 A schematic diagram of the internal structure of the purification box provided by the present invention; Figure 7 This is a structural schematic diagram of another viewing angle of the purification box provided by the present invention; Figure 8 A schematic diagram of the structure of the purification component provided by the present invention; Fig. 9 It is a schematic diagram of the structure of the modified biomass carbon filter rod in the purification component of the present invention; Fig.10 It is a schematic diagram of the structure of the sliding track in the purification component of the present invention; Fig.11 A schematic diagram of the internal structure of the water collecting tank provided by the present invention; Fig.12 It is a structural schematic diagram of a cleaning rod group in a water collecting tank of the present invention; Fig.13 It is a schematic diagram of the cooperation between the movable filter plate and the lifting frame in the water collecting box of the present invention.

[0017] The reference numerals are as follows: 1. Water collecting box; 101. First cavity; 102. Second cavity; 103. Upper support plate; 104. Movable filter plate; 105. Back rod; 106. Guide rod; 107. Forward and reverse servo motor; 108. Slag collecting port; 109. Circular cavity; 110. Slag dropping port; 111. Slag collecting cavity; 112. Top rod; 113. Lifting frame; 114. Driving shaft; 115. Cleaning rod; 116. Lower support rod; 117. Eccentric wheel; 2. Square processing box; 3. Water collecting pipe; 31. Fourth flange gate valve; 4. Water inlet pipe; 41. First flange gate valve; 5. Return pipe; 51. Second flange gate valve; 6. Connecting pipe; 61. Third flange gate valve; 7. Square processing box door axis; 8. Hasp lock; 9. Purification box; 91. Top inlet; 92. Bottom outlet; 93. Support angle plate; 10. Filter plate; 11. Modified biochar filter rod; 12. Sliding track; 13. Flat plate; 14. Stainless steel corner code; 15. Flip door; 16. Sealing strip; 17. Purification box door shaft; 18. Flip sheet; 19. Water quality sensor; 191. Sensor housing; 20. Electric valve; 21. Equal diameter straight-through connector. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0020] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, a eutrophic livestock and poultry breeding water treatment device based on modified biochar is provided, comprising a water collecting tank 1 and a square treatment box 2; Specifically, a water collecting pipe 3 is provided on one side of the water collecting tank 1, and a fourth flange gate valve 31 is provided on the water collecting pipe 3 to control the on-off of the water collecting pipe 3; In one implementation, the other side of the water collecting box 1 is respectively connected with an inlet pipe 4 and a return pipe 5; the other end of the inlet pipe 4 is connected to the purification box 9 provided in the square treatment box 2, and the other end of the return pipe 5 extends into the square treatment box 2, and the return pipe 5 located in the square treatment box 2 is located below the purification box 9, and the other end of the return pipe 5 is connected to the connecting pipe 6; The water inlet pipe 4 is provided with a first flange gate valve 41; The return water pipe 5 is provided with a second flange gate valve 51 .

[0021] like Figure 1 , Figure 11-13 As shown, in one implementation, the water to be treated that enters the water collecting tank 1 through the water collecting pipe 3 needs to be filtered in the water collecting tank 1 to remove large volume impurities in the water; Specifically, a cleaning rod group is vertically fixedly arranged in the water collecting box 1, and the cleaning rod group divides the inside of the water collecting box 1 into a first cavity 101 and a second cavity 102. The cleaning rod group is located on the filtering surface of the movable filter plate 104. When the movable filter plate 104 changes its vertical position, the cleaning rod group cleans the filtering surface of the movable filter plate 104. Among them, Fig.11 and Fig.12As shown, the cleaning rod group includes an upper support plate 103, and a plurality of lower support rods 116 are evenly spaced at the lower end of the upper support plate 103, and a plurality of cleaning rods 115 are arranged on each lower support rod 116. The cleaning rods 115 on adjacent lower support rods 116 are staggered with each other in the vertical direction. When the movable filter plate 104 changes its vertical position, the cleaning rods 115 can clean the filter residue attached to the filter surface of the movable filter plate 104, and the staggered cleaning rods 115 can make the cleaning range of the filter surface cover a wider range, that is, the filter surface of the movable filter plate 104 which is a vertical rectangular surface corresponding to the area between two adjacent lower support rods 116 can be fully cleaned.

[0022] In one implementation, the vertical position change of the movable filter plate 104 is carried out by pushing an electric telescopic rod; In another implementation, the vertical position change of the movable filter plate 104 is carried out by driving an eccentric wheel mechanism; In one implementation, the cleaning rod 115 is a rod structure that is inclined downward, which helps the cleaned filter residue to fall; the cleaning rods 115 that are staggered with each other in the area between adjacent lower support rods 116 form an S-shaped channel, which is convenient for the rapid falling and discharge of filtered impurities.

[0023] Please continue to refer to Figure 11-13 In one implementation, a slag collecting chamber 111 is provided below the first cavity 101, and the slag collecting chamber 111 is connected to the first cavity 101 through a circular cavity 109, the circular cavity 109 is placed horizontally, and a screw propeller is coaxially arranged in the circular cavity 109, and when the screw propeller rotates, the filtered impurities in the circular cavity 109 are pushed to move; wherein, one end of the circular cavity 109 is connected to the first cavity 101 through a slag collecting port 108; the other end of the circular cavity 109 is connected to the slag collecting chamber 111 through a slag dropping port 110; that is, the rotating screw propeller causes the filtered impurities entering the circular cavity 109 from the slag collecting port 108 to be sent to the slag dropping port 110 and enter the slag collecting chamber 111; preferably, a slag taking port is provided at the bottom of the slag collecting chamber 111, and the slag taking port is controlled to be opened or closed by a valve, and when closed, the slag taking port does not leak water.

[0024] Optionally, the eccentric wheel mechanism provided in the embodiment of the present disclosure is connected to the spiral propeller, that is, the pushing and moving process of the filter residue in the circular cavity 109 is synchronized with the vertical position change process of the movable filter plate 104; wherein, please refer to Fig.13 The eccentric wheel mechanism includes an eccentric wheel 117, which is eccentrically mounted on a driving shaft 114, the driving shaft 114 is coaxially fixedly connected to the propeller, and the other end of the driving shaft 114 is drivingly connected to the output shaft of the forward and reverse servo motor 107; the eccentric wheel mechanism also includes a lifting frame 113, which is a square frame structure, and the square frame is slidably sleeved on the eccentric wheel 117; Furthermore, a back rod 105 is provided on the non-filtering surface of the movable filter plate 104, the bottom end of the back rod 105 is fixedly connected to the top rod 112, and the top rod 112 is fixedly connected to the lifting frame 113; Optionally, the top end of the back rod 105 is slidably sleeved on the guide rod 106 , and the top end of the guide rod 106 is fixedly connected to the top plate of the water collecting tank 1 .

[0025] When the eccentric wheel mechanism provided in this embodiment is in use, the forward and reverse servo motor 107 is used to rotate the drive shaft 114. On the one hand, the drive shaft 114 drives the spiral push paddle to rotate, so as to push the filtered impurities in the circular cavity 109, so as to prevent the filtered impurities from accumulating at the slag collecting port 108; on the other hand, the drive shaft 114 drives the eccentric wheel 117 to rotate, so as to push the lifting frame 113 to move up and down, so as to push the movable filter plate 104 to move up and down, and the filtering surface of the movable filter plate 104 is synchronously cleaned by the cleaning rod group.

[0026] Please continue reading Figure 1-Figure 4 The modified biochar-based eutrophication livestock and poultry breeding water treatment device of the present invention also includes a water quality monitoring component, which is arranged in the bottom inner cavity of the square treatment box 2, and the water quality monitoring component is used to perform real-time water quality monitoring of the water discharged from the purification box 9.

[0027] Preferably, the bottom end of the purification box 9 is provided with a bottom outlet 92, and the bottom outlet 92 is connected to the return pipe 5, and the water discharged from the purification box 9 enters the return pipe 5; In one implementation, the top of the purification box 9 is provided with a top inlet 91, which is connected to the other end of the water inlet pipe 4. After the first flange gate valve 41 is opened, the sewage to be purified in the water collection tank 1 is sent into the purification box 9 again through the water inlet pipe 4 and the top inlet 91 by a water pump; Furthermore, a third flange gate valve 61 is provided on the connecting pipe 6 , and the third flange gate valve 61 is used to control the opening and closing of the connecting pipe 6 .

[0028] Furthermore, the square processing box 2 is provided with a square processing box door shaft 7 and a buckle lock 8 that cooperate with each other, so as to facilitate opening or closing the box door of the square processing box 2.

[0029] Please continue reading Figure 6 In the embodiment of the present invention, a filter plate 10 is provided in the upper inner cavity of the purification box 9, and the filter plate 10 can filter the suspended solids in the water body to further separate the solid and liquid; Preferably, the filtration aperture of the filter plate 10 is smaller than the filtration aperture of the movable filter plate 104 .

[0030] A plurality of purification components are arranged in the lower inner cavity of the purification box 9. The water entering the purification box 9 through the top inlet 91 is first filtered through the filter plate 10, and then the water is adsorbed by the purification components to purify the water. The purified water is discharged through the bottom outlet 92, wherein the water quality monitoring component detects the water discharged from the bottom outlet 92, monitors key parameters such as nitrogen and phosphorus content inside the box in real time, and combines data analysis to compare whether it meets the discharge standard, thereby controlling the opening and closing of the electric valve 20, thereby improving the purification effect of the eutrophic water body; Among them, if the water quality discharged from the bottom outlet 92 does not meet the discharge standard, the second flange gate valve 51 is controlled to open and the third flange gate valve 61 is closed, so that the water flows back into the water collecting tank 1 and the square treatment box 2 through the return pipe 5 for secondary purification; if the water quality discharged from the bottom outlet 92 meets the discharge standard, the third flange gate valve 61 is opened, and the qualified water is discharged through the connecting pipe 6.

[0031] The present invention can more accurately assess the eutrophication degree of aquaculture water bodies by measuring and analyzing nitrogen and phosphorus in water bodies, and can achieve water body prevention and control and control of water body eutrophication.

[0032] like Figure 4 and Figure 5 As shown, in the embodiment of the present invention, the water quality monitoring component is arranged on the bottom outlet 92; Specifically, the water quality monitoring component includes a water quality sensor 19, an electric valve 20 and an equal-diameter straight-through joint 21, wherein the electric valve 20 and the water quality sensor 19 are both installed on the bottom outlet 92 through the equal-diameter straight-through joint 21, and the electric valve 20 is used to control the on-off of the bottom outlet 92. The water quality sensor 19 is connected to the electric valve 20 through a circuit board circuit, and the water quality sensor 19 is arranged in a sensor housing 191 to provide protection for the water quality sensor 19; In one implementation, in addition, the sensor housing 191 is connected to the bottom outlet 92 by an equal-diameter straight-through joint 21, so that the water at the bottom outlet 92 can enter the sensor housing 191, so that the water body can be monitored by using the water quality sensor 19, and the electric valve 20 can be controlled according to the data fed back by the water quality processor to realize the opening and closing of the bottom outlet 92 based on the electric valve 20.

[0033] Preferably, the purification box 9 is supported and fixedly installed in the square processing box body 2 by supporting angle plates 93 .

[0034] Further, such as Figure 6-Figure 10As shown, the purification assembly includes a flat plate 13, which is supported and fixedly mounted on the inner wall of the purification box 9 by a stainless steel angle bracket 14, and a sliding track 12 is fixedly arranged on the flat plate 13, and a plurality of modified biomass carbon filter rods 11 are supported and mounted on the sliding track 12; like Fig.10 As shown, the right-angled corner parts of the sliding track 12 are an integrally formed slide and support. The integrally formed slide and support on the sliding track 12 can prevent the filter rod from shifting when it is not moving. The two modified biomass charcoal filter rods 11 fixedly placed on the sliding track 12 are in contact with each other, and the contact friction between them can also play a certain fixing role; optionally, the support can adopt an arc structure that matches the modified biomass charcoal filter rod 11, and the support with an arc structure has a certain elasticity, which is convenient for the installation of the modified biomass charcoal filter rod 11 and further improves the fixing effect of the modified biomass charcoal filter rod 11; the specific structure of the support and the slide is not limited, and they can be used to fix the modified biomass charcoal filter rod 11.

[0035] The multiple modified biomass carbon filter rods 11 arranged in the purification box 9 can slow down the water flow speed and improve the purification effect; when replacing the modified biomass carbon filter rods 11, the round rod part of the non-filter hole part of the modified biomass carbon filter rods 11 can be convenient for the manager to take; Two modified biomass carbon filter rods 11 form a group, and the number of groups of modified biomass carbon filter rods 11 is not limited.

[0036] Correspondingly, in the embodiment of the present invention, a flip door 15 corresponding to the purification component is provided on the side wall of the purification box 9, and the modified biochar filter rod 11 of the purification component can be conveniently replaced by opening the flip door 15; the flip door 15 includes a sealing strip 16, a purification box door shaft 17 and a flip sheet 18, wherein the purification box door shaft 17 is arranged on the side wall of the purification box 9, and the flip sheet 18 is connected to the purification box door shaft 17, and the flip sheet 18 can be opened to facilitate the removal of the purification component from the purification box 9, and at the same time, the used modified biochar can be converted into carbon fertilizer for farmland fertilization, thereby realizing multi-level energy utilization; the sealing strip 16 is wrapped around the outer ring of the flip sheet 18, and the setting of the sealing strip 16 ensures the sealing of the purification box 9 and improves the purification efficiency.

[0037] Furthermore, the modified biomass carbon filter rod 11 of the present invention is filled with an adsorbent filler, and the preparation method of the adsorbent filler comprises the following steps: Wash and air-dry the rice husk, then crush it and weigh 300g of rice husk powder; After the biomass continuous pyrolysis reaction platform (BCP-500) reaches 500°C and waits for ten minutes, feed the material; After carbonization, the product was naturally cooled, taken out and ground through a 150-mesh sieve, washed repeatedly with distilled water, dried to constant weight, and sealed in a sealed bag for future use. This is unmodified biochar; marked as DBC (rice husk biochar); Take 2g of dried biomass raw material, set the solution impregnation concentration to 1.0mol / L, the ratio of biomass raw material mass (g) to magnesium chloride solution volume (mL) to be 1:10, immerse the biomass raw material in the solution, mix and shake for 24h at a speed of 150r / min, filter, dry the obtained solid mixture at 80℃, then put it into a sealed container, and pyrolyze it at 550℃ in a muffle furnace for 2h; rinse with deionized water after cooling, dry and grind through a 150-mesh sieve to obtain modified biochar.

[0038] In summary, the present invention specifically treats eutrophic livestock and poultry breeding water, innovatively uses biochar materials, modifies the biochar, optimizes the treatment, and improves the performance of treating nitrogen and phosphorus in water.

[0039] When the eutrophic water passes through the purification box 9 of the present invention, the modified biochar filter rod 11 and its filler can absorb nitrogen and phosphorus in the water, and the purified water still flows back to the soil, forming a large cycle; and the biochar absorbs the nitrogen and phosphorus contained in the eutrophic water in the soil to form biochar fertilizer which returns to the soil, forming a small cycle; the formation of the "one large and one small" two cycles incorporates agricultural production into the ecosystem cycle, so that the entire production process enters a virtuous cycle track of sustainable development and realizes the multi-level recycling of material energy.

[0040] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and equivalent scope, the present invention is not limited to the specific details and the illustrations shown and described here.

Claims

1. A eutrophic livestock and poultry breeding water treatment device based on modified biochar, characterized in that: include: A square processing box body is provided inside which a purification box is supported; a filter plate is provided in the upper inner cavity of the purification box, and a plurality of purification components are provided in the lower inner cavity of the purification box; a bottom outlet is provided at the bottom end of the purification box; A water collecting box, one side of which is provided with a water collecting pipe; the other side of the water collecting box is respectively connected with an inlet pipe and a return pipe; the other end of the inlet pipe is connected with a purification box arranged in a square treatment box body, the other end of the return pipe extends into the square treatment box body, and the return pipe located in the square treatment box body is located below the purification box, and the other end of the return pipe is connected with the connecting pipe; the bottom outlet is connected with the return pipe, and the water discharged from the purification box enters the return pipe; A water quality monitoring component is used to monitor the water discharged from the purification box. The water quality monitoring component is arranged in the bottom inner cavity of the square treatment box.

2. The eutrophication livestock and poultry breeding water treatment device based on modified biochar according to claim 1 is characterized in that: A cleaning rod group is vertically fixed in the water collecting box, and the cleaning rod group divides the inside of the water collecting box into a first cavity and a second cavity. The cleaning rod group is located on the filtering surface of the movable filter plate. When the movable filter plate changes its vertical position, the cleaning rod group cleans the filtering surface of the movable filter plate. The cleaning rod group includes an upper support plate, a plurality of lower support rods are arranged at equal intervals at the lower end of the upper support plate, a plurality of cleaning rods are arranged on each lower support rod, and the cleaning rods on adjacent lower support rods are staggered with each other in the vertical direction. When the movable filter plate changes its vertical position, the cleaning rods clean the filter residue attached to the filter surface of the movable filter plate.

3. The eutrophication livestock and poultry breeding water treatment device based on modified biochar according to claim 2 is characterized in that: The vertical position change of the movable filter plate is driven by the eccentric wheel mechanism; the eccentric wheel mechanism includes: The eccentric wheel is eccentrically mounted on the driving shaft; one end of the driving shaft is drivingly connected to the output shaft of the forward and reverse servo motor; The lifting frame is a square frame structure, and the square frame is slidably sleeved on the eccentric wheel; a back rod is arranged on the non-filtering surface of the movable filter plate, and the bottom end of the back rod is fixedly connected to the top rod, and the top rod is fixedly connected to the lifting frame.

4. The eutrophication livestock and poultry breeding water treatment device based on modified biochar according to claim 3 is characterized in that: A slag collecting chamber is provided below the first chamber, and the slag collecting chamber is connected to the first chamber through a circular chamber. The circular chamber is placed horizontally, and a screw propeller is coaxially rotated in the circular chamber, and the driving shaft is coaxially fixedly connected with the screw propeller.

5. The eutrophic livestock and poultry breeding water treatment device based on modified biochar according to any one of claims 2 to 4, characterized in that: A top inlet is provided at the top of the purification box; The top inlet is connected to the other end of the water inlet pipe; A first flange gate valve is provided on the water inlet pipe; A second flange gate valve is provided on the water return pipe; A third flange gate valve is arranged on the connecting pipe, and the third flange gate valve is used to control the opening and closing of the connecting pipe.

6. The eutrophication livestock and poultry breeding water treatment device based on modified biochar according to claim 5 is characterized in that: The water quality monitoring component is arranged on the bottom outlet; the water quality monitoring component comprises a water quality sensor, an electric valve and an equal-diameter straight-through joint, wherein the electric valve and the water quality sensor are both installed on the bottom outlet through the equal-diameter straight-through joint, the electric valve is used to control the on-off of the bottom outlet, the water quality sensor is connected to the electric valve through a circuit board circuit, and the water quality sensor is arranged in a sensor housing; The sensor housing and the bottom outlet are connected by an equal-diameter straight-through joint. The water at the bottom outlet enters the sensor housing. The water quality sensor is used to monitor the water. The electric valve is controlled based on the data fed back by the water quality processor, and the opening and closing of the bottom outlet are controlled based on the electric valve.

7. The eutrophication livestock and poultry breeding water treatment device based on modified biochar according to claim 6 is characterized in that: The purification box is fixedly installed in the square treatment box body through the support angle plate; The purification component comprises a flat plate, which is fixedly mounted on the inner wall of the purification box through stainless steel angle brackets, a sliding track is fixedly arranged on the flat plate, and a plurality of modified biomass carbon filter rods are supported and mounted on the sliding track.

8. The eutrophication livestock and poultry breeding water treatment device based on modified biochar according to claim 7 is characterized in that: A flip door corresponding to the purification component is provided on the side wall of the purification box; The flip door includes a sealing strip, a purification box door shaft and a flip sheet, the purification box door shaft is arranged on the side wall of the purification box, and the flip sheet is connected to the purification box door shaft; The sealing strip is wrapped around the outer circle of the flip plate.

9. The eutrophication livestock and poultry breeding water treatment device based on modified biochar according to claim 8, characterized in that: The modified biomass carbon filter rod is filled with an adsorption filler, and the preparation method of the adsorption filler comprises the following steps: Wash and air-dry the rice husk, then crush it and weigh 300g of rice husk powder; After the biomass continuous pyrolysis reaction platform reaches 500°C and waits for ten minutes, feed the material; After carbonization, cool naturally, take out and grind through a 150-mesh sieve, wash repeatedly with distilled water, dry to constant weight, seal in a sealed bag, and store for later use; Take 2g of dried biomass raw material, set the solution immersion concentration to 1.0mol / L, immerse the biomass raw material in the solution at a ratio of 1:10 between the mass of the biomass raw material and the volume of the magnesium chloride solution, mix and oscillate for 24h at a speed of 150r / min, filter, dry the obtained solid mixture at 80°C, then put it into a sealed container, and pyrolyze it at 550°C in a muffle furnace for 2h; rinse with deionized water after cooling, dry and grind through a 150-mesh sieve to obtain modified biochar, and use the modified biochar as an adsorption filler.

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