Water treatment equipment for recycling water for sprouting vegetables

Abstract

The utility model belongs to the technical field of agricultural production equipment and sewage treatment, and particularly relates to sprouting vegetable circulating water treatment equipment which comprises a shell, a fixing frame is fixedly installed at the top of the shell, a first groove body is fixedly installed between the shell and the top of the fixing frame and communicated with an external water supply system, and a filter screen is arranged in the first groove body. A filter screen is arranged in the first tank body and divides the first tank body into a precipitation filtering area and an ultraviolet sterilization area, a second tank body is arranged below the first tank body, an overflow weir partition plate is arranged in the second tank body and divides the second tank body into a biochemical treatment area and a sterilization precipitation area, and the bottom, located in the ultraviolet sterilization area, of the first tank body is fixedly communicated with a water outlet pipe; the other end of the water outlet pipe extends to the lower part in the biochemical treatment area, activated sludge is arranged in the biochemical treatment area, and a water outlet assembly communicated with an external device is arranged in the sterilization precipitation area; the treatment process is environment-friendly and efficient, and can be adjusted according to the dynamic change of the water quality of the sprouting vegetable wastewater.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural production equipment and sewage treatment, and specifically relates to a sprout vegetable circulating water treatment device. Background Art

[0002] Currently, sprouts are edible "sprouts" grown from seeds of various grains, beans, and trees, also known as "living vegetables." Common sprout varieties include: toon sprouts, buckwheat sprouts, alfalfa sprouts, Sichuan pepper sprouts, green black bean sprouts, acacia bean sprouts, sunflower seed sprouts, radish sprouts, asparagus bean sprouts, peanut sprouts, and broad bean sprouts, among over 30 others. They offer a wide variety and a nutritionally comprehensive range, making them a popular vegetable. The main edible part is the hypocotyl. They are rich in vitamin C, clear cholesterol and fat from blood vessel walls, and help prevent cardiovascular disease. Bean sprouts also contain riboflavin, making them ideal for those with oral ulcers. They are also rich in dietary fiber, making them a healthy vegetable for those suffering from constipation and potentially preventing digestive tract cancer. Bean sprouts are low in calories and high in water and fiber, making them a good choice for weight loss.

[0003] In the current sprout production companies, the amount of water used for washing and soaking sprouts is large, and the degree of pollution is not high. However, if it is directly used for bean sprout washing and cultivation without treatment, it can easily cause the sprouts to rot, thus affecting the cultivation and production of the entire sprout. This requires the purification of wastewater to provide the water needed for the growth of sprouts, realize the circulation of water resources, and maximize the use of water.

[0004] For example, the Chinese patent with patent publication number CN206408031U discloses a sprout wastewater recovery system, which includes a filter screen, a sand and gravel filter device, a sedimentation tank, a lime filter device, an ultraviolet sterilization device and an ozone sterilization device. The output port of the filter screen is connected to the input port of the sand and gravel filter device, the output port of the sand and gravel filter device is connected to the input port of the sedimentation tank, the output port of the sedimentation tank is connected to the input port of the lime filter device, the output port of the lime filter device is connected to the input port of the ultraviolet sterilization device, and the output port of the ultraviolet sterilization device is connected to the input port of the ozone sterilization device.

[0005] Although the above structure achieves the treatment of sprout wastewater, the above structure still has many shortcomings. First, the lime filtration in the above recovery system may cause residual lime components in the wastewater, resulting in changes in the water pH and causing nutrient absorption disorders in the sprouts; secondly, if the ozone sterilization is not properly controlled, ozone may leak and harm the environment; thirdly, since the water quality of sprout wastewater varies with the variety, growth stage and processing method, the system treatment process is relatively fixed and has poor adaptability, and cannot be adjusted in a timely and effective manner according to the dynamic changes in water quality. Utility Model Content

[0006] The main technical problem to be solved by the utility model is to provide a sprout recycling water discharging equipment with reasonable structural design, convenient operation, not only environmentally friendly and efficient treatment process, but also able to adjust according to the dynamic changes of sprout wastewater quality to improve the treated water quality.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A water treatment device for circulating water of sprouts comprises a shell, a fixing frame is fixedly installed on the top of the shell, a first trough body is fixedly installed between the shell and the top of the fixing frame, and the first trough body is connected to an external water supply system, a filter screen is provided in the first trough body, the filter screen divides the first trough body into a sedimentation and filtration area and a UV sterilization area, a second trough body is provided below the first trough body, an overflow weir partition is provided in the second trough body, the overflow weir partition divides the second trough body into a biochemical treatment area and a sterilization and sedimentation area, the first trough body is located at the bottom of the UV sterilization area and is fixedly connected to a water outlet pipe, the other end of the water outlet pipe extends to the bottom of the biochemical treatment area, activated sludge is provided in the biochemical treatment area, and a water outlet component connected to an external device is provided in the sterilization and sedimentation area.

[0009] The following is a further optimization of the above technical solution by the present invention:

[0010] The positions of the ultraviolet sterilization area and the biochemical treatment area correspond to each other vertically.

[0011] Further optimization: the overflow weir partition is located on a side wall in the biochemical treatment area and an overflow weir is fixedly installed near the top thereof, and the top of the overflow weir is flush with the top of the overflow weir partition.

[0012] Further optimization: A high-level float switch is provided in the biochemical treatment area, and the high-level float switch is electrically connected to the external buzzer; a low-level float switch and a middle-level float switch are provided in the sterilization sedimentation area, and the low-level float switch and the middle-level float switch are electrically connected to the external water supply system respectively.

[0013] Further optimization: the first trough body includes a vertical section and a horizontal section, the vertical section and the horizontal section are connected to each other in an L shape, the filter screen is fixedly arranged in the horizontal section of the first trough body, and a water baffle is fixedly installed on the inner walls on both sides of the vertical section of the first trough body and close to the filter screen, and the water baffle and the filter screen are parallel to each other, the bottom end of the water baffle is lower than the bottom of the horizontal section of the first trough body, and the bottom end of the water baffle is higher than the bottom of the vertical section of the first trough body.

[0014] Further optimization: the first ultraviolet sterilization component and the second ultraviolet sterilization component are respectively provided in the ultraviolet sterilization area and the sterilization precipitation area.

[0015] Further optimization: The biochemical treatment area is also provided with a biological filler component and an aeration component for cultivating activated sludge

[0016] Further optimization: the biological filler assembly includes a plurality of biological filler supports fixedly mounted on the inner wall of one side of the second trough body, the plurality of biological filler supports are arranged in parallel and at equal intervals along its width direction, and a plurality of biological filler strings are hung on the biological filler supports, and each biological filler string includes a plurality of biological filler bodies.

[0017] Further optimization: the aeration assembly includes a blower arranged on one side of the shell, the air outlet of the blower is fixedly connected to an aeration pipe, the air outlet end of the aeration pipe extends from the top of the shell to the bottom of the second tank body and is fixedly connected to an air distribution pipe, and both ends of the air distribution pipe are fixedly connected to microporous aerators.

[0018] Further optimization: the water outlet component includes a self-priming pump, the water inlet pipe of the self-priming pump extends to the bottom of the second tank body, the drainage pipe of the self-priming pump extends to the outside and is connected to the external sprout water supply device, and a filter cage is provided at the water inlet of the water inlet pipe.

[0019] The utility model intercepts larger solid impurities through the filter screen and precipitates fine solid particles in the sterilization precipitation area, thereby achieving effective removal of solid impurities, thereby greatly reducing suspended matter in water and making the water clearer.

[0020] The utility model realizes two sterilization processes by arranging the first ultraviolet sterilization component and the second ultraviolet sterilization component. The first sterilization can preliminarily reduce the number of microorganisms, and the second sterilization can kill again the microorganisms that may remain or be newly introduced after the biochemical treatment, which greatly reduces the risk of harm to the growth of sprouts by microorganisms and reduces the probability of sprouts becoming sick.

[0021] The utility model has a significant decomposition effect on organic pollutants in water through the microorganisms in the activated sludge, thereby being able to decompose organic matter released during the growth of sprouts, such as plant secretions and residual fertilizer components, reducing the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) of the water, and then being able to effectively convert organic pollutants in the water into harmless substances, thereby deeply purifying the water quality and better meeting the water quality requirements for the growth of sprouts.

[0022] By adopting the above technical solution, the utility model has a reasonable structural design and is easy to operate. Not only is the treatment process environmentally friendly and efficient, but it can also be adjusted according to the dynamic changes in the water quality of the sprout wastewater to improve the treated water quality.

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1A top view of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 for Figure 1 Cross-sectional view at AA in the middle;

[0026] Figure 3 for Figure 2 Cross-sectional view at the middle BB;

[0027] Figure 4 This is a side view of the overall structure of an embodiment of the utility model;

[0028] Figure 5 This is a front view of the first tank body of the embodiment of the utility model;

[0029] Figure 6 This is a top view of the first tank body of an embodiment of the present utility model;

[0030] Figure 7 This is a schematic structural diagram of the aeration assembly in an embodiment of the present utility model;

[0031] Figure 8 This is a structural diagram of the water outlet assembly in an embodiment of the present utility model;

[0032] Figure 9 This is a schematic structural diagram of the overflow weir baffle in an embodiment of the present utility model;

[0033] Figure 10 It is a structural schematic diagram of the overflow weir in the embodiment of the present utility model.

[0034] In the figure: 1-shell; 2-fixing frame; 3-first tank; 31-vertical section; 32-horizontal section; 4-filter screen; 5-sedimentation and filtration area; 6-UV sterilization area; 7-second tank; 8-overflow weir baffle; 9-biochemical treatment area; 10-sterilization and sedimentation area; 11-outlet pipe; 12-outlet assembly; 121-self-priming pump; 122-drainage pipe; 123-inlet pipe; 13-overflow weir; 14-high-level float switch; 15-mid-level float switch; 16-low-level float Switch; 17-water baffle; 18-first ultraviolet sterilization component; 181-first ultraviolet sterilization lamp bracket; 182-first ultraviolet sterilization lamp; 19-second ultraviolet sterilization component; 191-second ultraviolet sterilization lamp bracket; 192-second ultraviolet sterilization lamp; 20-biological filler component; 201-biological filler bracket; 202-biological filler string; 21-aeration component; 211-blower; 212-aeration pipe; 213-gas distribution pipe; 214-microporous aerator. DETAILED DESCRIPTION

[0035] like Figure 1-10As shown, a water treatment equipment for circulating water of sprouts includes a shell 1, a plurality of fixing frames 2 are fixedly installed on the top of the shell 1, a first trough 3 is fixedly installed between the shell 1 and the top of the fixing frame 2, and the first trough 3 is connected to an external water supply system, a filter screen 4 is arranged in the first trough 3, the filter screen 4 divides the first trough 3 into a sedimentation and filtration area 5 and an ultraviolet sterilization area 6, a second trough 7 is arranged below the first trough 3, an overflow weir partition 8 is arranged in the second trough 7, the overflow weir partition 8 divides the second trough 7 into a biochemical treatment area 9 and a sterilization sedimentation area 10, the first trough 3 is located at the bottom of the ultraviolet sterilization area 6 and is fixedly connected to a water outlet pipe 11, the other end of the water outlet pipe 11 extends to the bottom of the biochemical treatment area 9, activated sludge is arranged in the biochemical treatment area 9, and a water outlet component 12 connected to an external device is arranged in the sterilization sedimentation area 10.

[0036] During use, the external water supply system sends water to the sedimentation and filtration area 5 of the first trough 3 on the top of the shell 1. The filter screen 4 intercepts larger solid impurities in the water, such as mud, sand, sprout residues, etc., laying the foundation for subsequent processing links, preventing impurities from causing blockage and wear on the equipment, and also avoiding the interference of impurities with the subsequent water purification process.

[0037] Next, the ultraviolet sterilization area 6 sterilizes the water after sedimentation and filtration, using ultraviolet rays to kill microorganisms such as bacteria, viruses and algae in the water, reducing the harm of microorganisms to the growth of sprouts and ensuring the hygienic safety of water.

[0038] Then, the water enters the biochemical treatment area 9 of the second tank body 7, where the activated sludge decomposes organic pollutants in the water through the metabolism of microorganisms, such as plant secretions and residual fertilizers released during the growth of sprouts, reducing the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) of the water, further purifying the water quality and making it more suitable for the growth needs of sprouts.

[0039] Then, the sterilization and sedimentation area 10 performs secondary sterilization and sedimentation treatment on the water to kill any remaining microorganisms again and to precipitate the fine particles produced in the treated water, thereby ensuring that the water quality reaches a higher standard.

[0040] Finally, the water outlet assembly 12 in the sterilization and sedimentation area 10 delivers the treated water to an external device for use in the growth of the sprouts.

[0041] With this design, first, larger solid impurities are intercepted by the filter screen 4, and fine solid particles are precipitated in the sterilization sedimentation area 10, thereby achieving effective removal of solid impurities, thereby significantly reducing suspended matter in the water and making the water clearer.

[0042] Secondly, the setting of the first ultraviolet sterilization component 18 and the second ultraviolet sterilization component 19 realizes two sterilization processes. The first sterilization can preliminarily reduce the number of microorganisms, and the second sterilization can kill again the microorganisms that may remain or be newly introduced after biochemical treatment, which greatly reduces the risk of microorganisms harming the growth of sprouts and reduces the probability of sprouts becoming sick.

[0043] Thirdly, the microorganisms in the activated sludge have a significant effect on the decomposition of organic pollutants in the water, thereby decomposing the organic matter released during the growth of sprouts, such as plant secretions and residual fertilizer components, reducing the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) of the water, and effectively converting the organic pollutants in the water into harmless substances. The water quality is deeply purified, which is more in line with the water quality requirements for the growth of sprouts.

[0044] The positions of the ultraviolet sterilization zone 6 and the biochemical treatment zone 9 correspond to each other vertically.

[0045] This design not only allows water to flow naturally from the ultraviolet sterilization area 6 to the biochemical treatment area 9 under the action of gravity, reducing energy loss, which is conducive to cost savings and sustainable development; it also reduces pipeline resistance, increases water flow rate and treatment efficiency, reduces the risk of pipeline blockage and maintenance costs; and at the same time reduces the residence time of water in different areas, providing a stable and high-quality water source for the growth of sprouts.

[0046] Secondly, it facilitates equipment installation and maintenance, simplifies equipment layout, saves installation time and cost, makes the equipment more stable and reliable, and adapts to limited spaces such as small plantations.

[0047] The overflow weir partition plate 8 is located on a side wall of the biochemical treatment zone 9 and an overflow weir 13 is fixedly installed near the top thereof. The top of the overflow weir 13 is flush with the top of the overflow weir partition plate 8 .

[0048] With this design, the overflow weir 13 is installed on a side wall of the overflow weir partition 8 located in the biochemical treatment zone 9 and close to its top, and the top of the overflow weir 13 is made flush with the top of the overflow weir partition 8. This not only enables the water level in the biochemical treatment zone 9 to be accurately controlled, so that when the water reaches a certain height in the biochemical treatment zone 9, it will flow smoothly into the next treatment area through the overflow weir 13, avoiding the impact of excessively high or low water levels on the treatment effect; it also prevents the water flow in the biochemical treatment zone 9 from being turbulent, avoids affecting the contact effect between microorganisms and organic pollutants, and provides a good growth and treatment environment for microorganisms.

[0049] A high-level float switch 14 is provided in the biochemical treatment area 9, and the high-level float switch 14 is electrically connected to an external buzzer. A low-level float switch 16 and a middle-level float switch 15 are provided in the sterilization sedimentation area 10, and the low-level float switch 16 and the middle-level float switch 15 are electrically connected to the external water supply system respectively.

[0050] With this design, the high-level float switch 14 of the biochemical treatment area 9 monitors the water level changes in the area in real time. When the water level is too high, the high-level float switch 14 triggers the buzzer to sound an alarm, reminding the staff to deal with it in time; at the same time, the low-level float switch 16 and the middle-level float switch 15 of the sterilization sedimentation area 10 also monitor the water level changes in the area. When the water level is lower than a certain level, the low-level float switch 16 is electrically connected to the external water supply system to automatically control the start-up of the external water supply system. When the water level is higher than a certain level, the middle-level float switch 15 is electrically connected to the external water supply system to automatically control the stop of the external water supply system to ensure the stable operation of the entire water treatment equipment.

[0051] The first tank body 3 includes a vertical section 31 and a horizontal section 32 . The vertical section 31 and the horizontal section 32 are interconnected to form an L shape. The filter screen 4 is fixedly disposed in the horizontal section 32 of the first tank body 3 .

[0052] Water baffles 17 are fixedly mounted on the inner walls of both sides of the vertical section 31 of the first tank body 3 and close to the filter screen 4 , and the water baffles 17 and the filter screen 4 are parallel to each other.

[0053] The bottom end of the water retaining plate 17 is lower than the bottom of the horizontal section 32 of the first trough body 3 , and the bottom end of the water retaining plate 17 is higher than the bottom of the vertical section 31 of the first trough body 3 .

[0054] With this design, first, a water baffle 17 is provided in the vertical section 31 of the first trough body 3 to guide the water flow to flow more concentratedly to the filter screen 4 in the horizontal section 32, thereby increasing the contact area and time and improving the filtration efficiency. Especially when the water flow is large, the filter screen 4 can be prevented from being partially damaged, thereby ensuring uniform filtration of the water.

[0055] Secondly, by making the bottom end of the water baffle 17 lower than the bottom of the horizontal section 32 of the first trough body 3 and higher than the bottom of the vertical section 31 of the first trough body 3, a stable water flow area is formed, which promotes the natural sedimentation of heavy particles to the bottom of the vertical section 31 and the approach of light particles to the filter screen 4, significantly improving the filtering effect, reducing the clogging of the filter screen 4, extending its service life, and having an outstanding effect on water containing heavy particles.

[0056] Again, the water baffle 17 can effectively prevent impurities deposited at the bottom of the vertical section 31 from re-entering the filtered water due to water flow disturbance, thereby ensuring the quality of filtered water and avoiding the impact of water flow fluctuations or equipment vibration on the treatment effect; in addition, it can also stabilize the water flow state, reduce turbulence and vortexes, and provide a stable working environment for the filter screen 4 and the ultraviolet sterilization area 6, thereby improving the ultraviolet sterilization effect and ensuring the stable operation of the entire water treatment process.

[0057] Finally, the water baffle 17 protects the filter screen 4, reduces the impact and blockage of impurities on it, reduces the probability of damage to the filter screen 4, reduces the replacement cost, and extends the service life of the equipment.

[0058] The ultraviolet sterilization area 6 and the sterilization precipitation area 10 are respectively provided with a first ultraviolet sterilization component 18 and a second ultraviolet sterilization component 19 .

[0059] The first ultraviolet sterilization component 18 includes at least two first ultraviolet sterilization lamp brackets 181 fixedly installed on the top of the first trough body 3, and the multiple first ultraviolet sterilization lamp brackets 181 are arranged in parallel and spaced apart along the length direction of the first trough body 3, and multiple first ultraviolet sterilization lamps 182 are installed between two adjacent first ultraviolet sterilization lamp brackets 181.

[0060] With this design, first, multiple first ultraviolet germicidal lamp brackets 181 are arranged in parallel and spaced apart, and multiple first ultraviolet germicidal lamps 182 are installed between adjacent first ultraviolet germicidal lamp brackets 181, so that ultraviolet rays are evenly distributed in the ultraviolet sterilization area 6, ensuring that the water is fully exposed to the light, avoiding incomplete local sterilization, and at the same time, multiple irradiations enhance the inactivation ability, providing a sanitary environment for subsequent links and the growth of sprouts.

[0061] Secondly, the number and layout of lights can be adjusted according to actual conditions to adapt to different water qualities and treatment scales, meeting the needs of small growers and large planting bases.

[0062] Thirdly, the independent installation makes it easy to repair and replace a single first ultraviolet germicidal lamp 182 when it fails, and the faulty lamp can be quickly located, thus reducing downtime and ensuring treatment continuity.

[0063] The second ultraviolet sterilization component 19 includes at least two second ultraviolet sterilization lamp brackets 191 fixedly installed on the top between the side wall of the second trough body 7 and the overflow weir partition 8, and multiple second ultraviolet sterilization lamp brackets 191 are arranged in parallel and spaced apart along the width direction of the second trough body 7, and multiple second ultraviolet sterilization lamps 192 are installed between adjacent two second ultraviolet sterilization lamp brackets 191.

[0064] With this design, first, multiple second ultraviolet germicidal lamp brackets 191 are arranged in parallel and spaced apart along the width direction of the second trough body 7, so that the second ultraviolet germicidal lamps 192 are reasonably distributed in the sterilization sedimentation area 10, ensuring that the water is fully irradiated by ultraviolet rays, and the water after biochemical treatment is sterilized for the second time, thereby improving the water purity and providing a safer water environment for sprouts.

[0065] Secondly, the layout can evenly cover the entire area, and the water near the side wall of the second tank body 7 or the overflow weir partition 8 can be fully irradiated, ensuring consistent and reliable sterilization effect. At the same time, the design facilitates flexible adjustment of the sterilization intensity, and the number of brackets can be increased or decreased or lamps of different power can be replaced according to the water quality.

[0066] In addition, the second ultraviolet germicidal lamp 192 is installed on an independent second ultraviolet germicidal lamp bracket 191, which is convenient for single replacement and maintenance without affecting the overall operation, reducing maintenance costs and improving equipment availability and reliability.

[0067] The biochemical treatment area 9 is further provided with a biological filler component 20 and an aeration component 21 for cultivating activated sludge.

[0068] The biological filler assembly 20 includes a plurality of biological filler supports 201 fixedly mounted on the inner wall of one side of the second tank body 7 , and the plurality of biological filler supports 201 are arranged in parallel and at equal intervals along the width direction thereof.

[0069] A plurality of biological filler strings 202 are hung on the biological filler supports 201 , and each biological filler string 202 includes a plurality of biological filler bodies.

[0070] With this design, first, the biological filler supports 201 are arranged in parallel and at equal intervals, so that the biological filler is evenly distributed, water and filler are fully in contact, and the treatment efficiency and effect are improved. Regardless of the position of the water flow, it can react with microorganisms to treat organic pollutants, and it is conducive to the uniform distribution and stability of the water flow, providing a stable growth and metabolic environment for microorganisms and avoiding abnormal water flow.

[0071] Secondly, the hanging method of the biological filler string 202 is convenient for installation and replacement. Damage to a single string can be handled separately, shortening maintenance time and cost. The number and density can also be flexibly adjusted according to demand and water quality to achieve the best effect.

[0072] Again, the biological filler string 202 contains multiple filler bodies, providing a large surface area for microorganisms to attach and form biofilms, thereby enhancing the ability to decompose and transform organic pollutants. Therefore, in the treatment of sprout organic wastewater, its multi-layer structure and pores adapt to the growth of different microorganisms, increase biodiversity and comprehensive stability of treatment, and aerobic and anaerobic microorganisms jointly participate in the decomposition.

[0073] The aeration assembly 21 includes a blower 211 disposed on one side of the housing 1 , and an air outlet of the blower 211 is fixedly connected to an aeration pipe 212 .

[0074] The air outlet end of the aeration pipe 212 extends from the top of the shell 1 to the bottom of the second tank 7 and is fixedly connected to the air distribution pipe 213. Both ends of the air distribution pipe 213 are fixedly connected to the microporous aerator 214.

[0075] With this design, first, the blower 211 disperses the air evenly into tiny bubbles through the aeration pipe 212, the air distribution pipe 213 and the microporous aerator 214 and dissolves them in the water, providing sufficient oxygen for the breathing of microorganisms. The tiny bubbles increase the contact area between air and water and improve the transfer efficiency, and ensure uniform aeration at different positions in the biochemical treatment area 9, thereby maintaining the activity of microorganisms and stabilizing the treatment effect, and ensuring the uniform decomposition of organic pollutants.

[0076] Secondly, the rising bubbles and water agitation produced by aeration promote the transfer of substances between biological fillers and water, allowing pollutants and nutrients to better contact microorganisms, improving the efficiency of absorption and decomposition, and preventing the biofilm from being too thick. Appropriate aeration intensity can regulate the structure and metabolic activity of microbial communities, promote the growth and reproduction of dominant microorganisms, improve degradation capacity, and optimize treatment effects.

[0077] The water outlet assembly 12 includes a self-priming pump 121, a water inlet pipe 123 of the self-priming pump 121 extends to the bottom of the second tank body 7, a drainage pipe 122 of the self-priming pump 121 extends to the outside and is connected to the external sprout water supply device, and a filter cage (not shown in the figure) is provided at the water inlet of the water inlet pipe 123.

[0078] With this design, first of all, the powerful suction capacity of the self-priming pump 121 can quickly pump water from the bottom of the second tank body 7, and can work effectively even if the water level is low, ensuring stable and continuous water output. No matter how the water level in the tank changes, it can reliably extract qualified water to provide a stable water source for the sprout water supply device.

[0079] Secondly, the drainage pipe 122 of the self-priming pump 121 is directly connected to the external sprout water supply device, which reduces the risk of loss and leakage in the intermediate links and can accurately transport water to the position required for the growth of the sprouts.

[0080] A pump seat is fixedly installed at the bottom of the self-priming pump 121, and a mounting plate is fixedly installed at the bottom of the pump seat near both sides. The two ends of the mounting plate are fixedly connected to the inner wall of the second tank body 7 and the overflow weir partition 8 respectively.

[0081] With this design, the pump seat and the mounting plate provide stable support for the self-priming pump 121. The mounting plate is connected to the inner wall of the second trough body 7 and the overflow weir partition 8 to form a stable structure, preventing the self-priming pump 121 from shaking and shifting due to external forces such as water flow impact, ensuring its continuous and stable operation and extending its service life.

[0082] Example 2: Other structures are the same as those of Example 1, except that a fluorescence dissolved oxygen meter (not shown in the figure) is further provided in the biochemical treatment area 9, and the fluorescence dissolved oxygen meter is electrically connected to the aeration device.

[0083] With this design, first, the fluorescence dissolved oxygen meter accurately monitors the dissolved oxygen content in the biochemical treatment area 9 in real time. Dissolved oxygen affects the survival and metabolism of microorganisms. Therefore, in the treatment of sprout wastewater, the process can be adjusted in time according to its changes to ensure that microorganisms can efficiently decompose organic matter in a suitable environment. It can also quickly detect dissolved oxygen anomalies and take measures to avoid affecting the treatment effect.

[0084] Secondly, after being electrically connected to the aeration device, the dissolved oxygen meter automatically controls the operation of the aeration device based on real-time data. It starts aeration and oxygenation when the dissolved oxygen is low, and stops when appropriate to avoid excessive aeration and save energy. It also makes aeration more uniform and improves the stability of the biochemical treatment effect. Since microorganisms have different requirements for dissolved oxygen at different stages, real-time monitoring and automatic adjustment can meet the needs and ensure efficient wastewater treatment.

[0085] When the equipment is running, the water for washing and soaking the sprouts first enters the sedimentation and filtration area 5 of the first tank body 3. The filter screen 4 intercepts larger solid impurities in the water, such as mud, sprout residues, etc., laying the foundation for subsequent processing links, preventing impurities from clogging and wearing the equipment, and also avoiding the interference of impurities with the subsequent water purification process.

[0086] Subsequently, the filtered water enters the ultraviolet sterilization area 6, and the ultraviolet sterilization lamp 182 in the ultraviolet sterilization area 6 performs ultraviolet sterilization on the preliminary filtered water, destroying the DNA structure of microorganisms and purifying the water quality.

[0087] Subsequently, the water enters the biochemical treatment area 9 of the second tank body 7, where the activated sludge decomposes organic pollutants in the water through the metabolism of microorganisms, such as plant secretions and residual fertilizers released during the growth of sprouts, thereby reducing the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) of the water, further purifying the water quality and making it more suitable for the growth needs of sprouts.

[0088] Subsequently, when the water level in the biochemical treatment area 9 rises to the height of the overflow weir 13 (the overflow weir 13 is located on one side wall near the top and is flush with the top of the overflow weir partition 8), the water slowly and evenly overflows through the overflow weir 13 into the sterilization sedimentation area 10, keeping the water level in the biochemical treatment area 9 stable and avoiding impacting the treatment process in the sterilization sedimentation area 10.

[0089] Then, the second ultraviolet sterilization lamp 192 in the sterilization sedimentation area 10 sterilizes the water again, killing residual microorganisms and improving water quality safety. At the same time, the residual tiny particles and impurities in the water settle to the bottom of the area under the action of gravity, making the upper layer of the water clear.

[0090] Finally, the self-priming pump 121 is started to suck out the treated clean water from the bottom of the sterilization sedimentation area 10 of the second tank 7 through the water inlet pipe 123, and is connected to the external sprout water supply device through the drainage pipe 122 to realize water recycling.

[0091] During this process, the high-level float switch 14 of the biochemical treatment area 9 monitors the water level changes in the area in real time. When the water level is too high, the high-level float switch 14 triggers the buzzer to sound an alarm, reminding the staff to deal with it in time; at the same time, the low-level float switch 16 and the middle-level float switch 15 of the sterilization sedimentation area 10 also monitor the water level changes in the area. When the water level is lower than a certain level, the low-level float switch 16 is electrically connected to the external water supply system to automatically control the start-up of the external water supply system. When the water level is higher than a certain level, the middle-level float switch 15 is electrically connected to the external water supply system to automatically control the stop of the external water supply system to ensure the stable operation of the entire water treatment equipment.

[0092] For ordinary technicians in this field, based on the teachings of this utility model, without departing from the principles and spirit of this utility model, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of this utility model.

Claims

1. A water treatment device for circulating water for sprouts, comprising a housing (1), a fixing frame (2) fixedly mounted on the top of the housing (1), a first tank (3) fixedly mounted between the housing (1) and the top of the fixing frame (2), and the first tank (3) being connected to an external water supply system, characterized in that: A filter screen (4) is provided in the first tank body (3), and the filter screen (4) divides the first tank body (3) into a sedimentation and filtration zone (5) and an ultraviolet sterilization zone (6). A second tank body (7) is provided below the first tank body (3), and an overflow weir baffle (8) is provided in the second tank body (7). The overflow weir baffle (8) divides the second tank body (7) into a biochemical treatment zone (9) and a sterilization sedimentation zone (10). The first tank body (3) is located at the bottom of the ultraviolet sterilization zone (6) and is fixedly connected to a water outlet pipe (11). The other end of the water outlet pipe (11) extends to the bottom of the biochemical treatment zone (9). Activated sludge is provided in the biochemical treatment zone (9), and a water outlet component (12) connected to an external device is provided in the sterilization sedimentation zone (10).

2. The water treatment equipment for circulating water of sprouts according to claim 1, characterized in that: The positions of the ultraviolet sterilization zone (6) and the biochemical treatment zone (9) correspond to each other.

3. The water treatment equipment for circulating water of sprouts according to claim 1, characterized in that: The overflow weir baffle (8) is located on a side wall in the biochemical treatment zone (9) and an overflow weir (13) is fixedly installed near the top thereof. The top of the overflow weir (13) is flush with the top of the overflow weir baffle (8).

4. The water treatment equipment for circulating water of sprouts according to claim 1, characterized in that: A high-level float switch (14) is provided in the biochemical treatment area (9), and the high-level float switch (14) is electrically connected to an external buzzer. A low-level float switch (16) and a middle-level float switch (15) are provided in the sterilization sedimentation area (10), and the low-level float switch (16) and the middle-level float switch (15) are electrically connected to an external water supply system, respectively.

5. The water treatment equipment for circulating water of sprouts according to claim 1, characterized in that: The first trough body (3) comprises a vertical section (31) and a horizontal section (32), the vertical section (31) and the horizontal section (32) being interconnected to form an L-shape, the filter screen (4) being fixedly arranged in the horizontal section (32) of the first trough body (3), a water baffle (17) being fixedly installed on the inner walls on both sides of the vertical section (31) of the first trough body (3) and at a position close to the filter screen (4), and the water baffle (17) and the filter screen (4) being parallel to each other, the bottom end of the water baffle (17) being lower than the bottom end of the horizontal section (32) of the first trough body (3), and the bottom end of the water baffle (17) being higher than the bottom end of the vertical section (31) of the first trough body (3).

6. The water treatment equipment for circulating water of sprouts according to claim 1, characterized in that: A first ultraviolet sterilization component (18) and a second ultraviolet sterilization component (19) are respectively provided in the ultraviolet sterilization zone (6) and the sterilization precipitation zone (10).

7. The water treatment equipment for circulating water for sprouts according to claim 1, characterized in that: A biological filler component (20) and an aeration component (21) for cultivating activated sludge are also provided in the biochemical treatment area (9).

8. The sprouts circulating water treatment equipment according to claim 7, characterized in that: The biological filler assembly (20) comprises a plurality of biological filler supports (201) fixedly mounted on an inner wall of one side of the second trough body (7), the plurality of biological filler supports (201) being arranged in parallel and at equal intervals along the width direction thereof, a plurality of biological filler strings (202) being hung on each of the biological filler supports (201), and each biological filler string (202) comprising a plurality of biological filler bodies.

9. The sprouts circulating water treatment equipment according to claim 8, characterized in that: The aeration assembly (21) comprises a blower (211) arranged on one side of the shell (1); an air outlet of the blower (211) is fixedly connected to an aeration pipe (212); an air outlet end of the aeration pipe (212) extends from the top of the shell (1) to the bottom of the second tank (7) and is fixedly connected to an air distribution pipe (213); and both ends of the air distribution pipe (213) are fixedly connected to microporous aerators (214).

10. The sprouts circulating water treatment equipment according to claim 9, characterized in that: The water outlet assembly (12) includes a self-priming pump (121), a water inlet pipe (123) of the self-priming pump (121) extends to the lower part of the second tank body (7), a drainage pipe (122) of the self-priming pump (121) extends to the outside and is connected to an external sprout water supply device, and a filter cage is provided at the water inlet of the water inlet pipe (123).

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