Device for rapidly treating source separation urine
By using solid salts to inhibit urease activity in urine, combined with photothermal evaporation and dehumidification devices, the problem of urea hydrolysis is solved, enabling rapid resource-based treatment of urine and water resource recovery to generate high-quality fertilizer.
Patent Information
- Application Number
- CN202423033552.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-09
AI Technical Summary
In existing technologies, urea is easily hydrolyzed during the evaporation process of source-separated urine, leading to ammonia escape and nitrogen loss. Furthermore, the treatment is not stable enough, making it difficult to achieve efficient resource utilization.
By using solid salts to inhibit the activity of urease in urine, combined with a light-transmitting cover and a dehumidifying device, urea crystallization is promoted through photothermal evaporation and dehumidification, thus avoiding hydrolysis and recovering nitrogen resources.
It achieves rapid evaporation and crystallization of urea to generate high-quality fertilizer, improves nitrogen recovery efficiency, and recovers water resources at the same time. The operation is simple, green and low-carbon, and has high resource utilization efficiency.
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Figure CN223576137U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of environmental protection equipment, and specifically relates to a device for rapidly treating source-separated urine. BACKGROUND
[0002] Source-separated urine is called "gold in wastewater", mainly because its nitrogen, phosphorus, organic matter and other nutrient content is rich, and the proportion reaches 4%-7%. The source-separated urine wastewater resource treatment mainly concentrates on how to handle the abandoned resources and realize efficient resource utilization two aspects. Since the nitrogen of fresh urine mainly exists in the form of urea, about 90% of the nitrogen exists in the form of ammonia or ammonium (NH3 and NH4 + ) through the action of microorganisms in the storage process. The resource treatment of source-separated urine is mostly concentrated on the recovery of nitrogen. At present, the methods for recovering nitrogen from urine mainly include stripping, ion exchange adsorption, electrochemical technology and evaporation technology. Since the water content of urine is high, transportation is inconvenient, various volume reduction methods such as evaporation and membrane technology are developed to concentrate and recover nutrients. In CN110512905A, an ecological toilet is disclosed, which is provided with a light-transmitting plate on the top of the urine treatment tank, which can transmit sunlight into the urine treatment tank, a urine treatment filler layer is arranged at the bottom of the urine treatment tank, the urine treatment filler layer comprises a deodorizing layer and a dehydration layer, an evaporation strip is arranged in the urine treatment tank, the upper end of the evaporation strip is connected with the light-transmitting plate, the lower end of the evaporation strip is inserted into the urine treatment filler layer, a condenser with a water removal capacity of 1-2L / d is arranged in the urine treatment tank, an air flow partition plate is arranged at the inlet end of the condenser, a condensate water discharge pipe is connected with the outlet end of the condenser. The urine treatment filler layer is composed of one or more of activated carbon, calcium oxide, zeolite powder, sawdust, rice straw ash, fly ash and magnesium oxide. In this structure, the urine is not well stabilized, and during evaporation, the urea in the urine can easily hydrolyze, causing odor overflow and nitrogen loss. SUMMARY
[0003] The utility model discloses the purpose: in order to overcome the defects of prior art, the utility model provides a device for rapidly treating source-separated urine, utilizes the dehydrated inactivation of certain concentration's salt solid to proteinase in urine, plays the inhibition of urease, thereby makes the urea in urine not hydrolyze.
[0004] The utility model discloses a technical scheme: a device for quickly treating source separation urine, which comprises a urine treatment pool, an urine inlet pipe and a drain pipe, a light-transmitting cover plate is arranged on the top of the urine treatment pool, the urine treatment pool is provided with a feeding opening for feeding salt solid and a proportioning system capable of automatically controlling the proportion of urine and salt solid in the pool, a dehumidifying device is further arranged in the urine treatment pool, the light-transmitting cover plate is detachably arranged on the top opening of the urine treatment pool, and the top opening is used for taking out the crystallization of the urine-salt solid mixture.
[0005] By adopting the above technical scheme, the urine and the salt solid are fed into the urine treatment pool in a quantitative proportion, the dehydration inactivation of the proteinase in the urine is realized by using the salt solid with a certain concentration, the inhibition of urease is realized, the hydrolysis of urea in the urine is avoided, the escape of ammonia gas caused by hydrolysis and the loss of nitrogen are avoided, the light of sunlight can penetrate into the urine treatment pool through the light-transmitting cover plate, the temperature inside the urine treatment pool is increased by heating to promote the evaporation of the urine, and the dehumidifying device is arranged in the urine treatment pool, the evaporation and crystallization of the urine are promoted by using the dehumidifying effect of the dehumidifying device. Under the comprehensive action of the salt solid, the dehumidifying device and the light-transmitting cover plate, the rapid evaporation and crystallization of the urine are realized, and the urine becomes a solid.
[0006] The utility model can realize the quick treatment of source separation urine, the evaporation and crystallization product generated is high-quality fertilizer, the effective recovery of nitrogen is strengthened, water resources can be recycled, and the utility model has the advantages of convenient operation, green low carbon, high resource efficiency and the like.
[0007] Further, the urine treatment pool has a urine area and a dehumidifying area, the two areas are separated by a partition plate and are communicated at the upper part, the urine area is used for adding urine and salt solid, the urine inlet pipe and the feeding opening are communicated with the urine area, the dehumidifying area is further provided with a dehumidifying device and a water storage tank, the dehumidifying device and the water storage tank are connected through a condensate water pipe, the dehumidifying device can automatically open and close according to the air humidity in the pool and flow the generated condensate water into the water storage tank for storage, and the drain pipe is connected to the bottom of the water storage tank and is used for discharging the condensate water in the tank.
[0008] By further adopting the above arrangement, the two areas are separated by the partition plate, the excessive urine in the urine area can be prevented from entering the dehumidifying area to damage the dehumidifying device, and the upper part of the two areas is communicated to facilitate dehumidification.
[0009] Further, the utility model further comprises a plurality of water absorbing strips, the water absorbing strips enter and exit the inside of the urine treatment pool from the top opening, the lower end of the water absorbing strip is embedded in the urine-salt solid mixture and is in a vertical state.
[0010] By further configuring the above-mentioned method, the water in the urine-salt solid mixture is absorbed by the action of the absorbent strips, and the sunlight heats the multiple absorbent strips, thereby increasing the evaporation area and promoting evaporation.
[0011] A further feature of this invention is that the light-transmitting cover on the top of the pool has a slope, which is inclined upward from left to right, and the water-absorbing strip is inclined to the right from bottom to top, and the sun-facing side of the water-absorbing strip facing the light-transmitting cover is a concave slope.
[0012] With the above-mentioned further design, the light-transmitting cover has a slope, which on the one hand facilitates more light to enter the urine treatment tank, and the concave slope of the water absorption strip also increases the light-receiving area, and on the other hand facilitates drainage.
[0013] A further feature of this invention is that the inlet tube is also equipped with a small electromagnetic flow meter and a control valve. The electromagnetic flow meter is used to calculate the flow rate of the fluid entering through the inlet tube, and the control valve is used to control the flow rate of the fluid passing through the inlet tube.
[0014] With the above-mentioned further settings, through the cooperation of electromagnetic flowmeter and control valve, the current fluid flow rate of the urinary catheter can be controlled and known in real time as needed.
[0015] A further feature of this invention is that the light-transmitting cover is composed of multiple light-transmitting panels spliced together.
[0016] With the above-mentioned further configuration, multiple light-transmitting panels can be independently disassembled, making it easy to remove crystals from the urine-salt solid mixture in the urine treatment pool for subsequent agricultural resource utilization planting.
[0017] A further feature of this invention is that the mixing system can be set to control the liquid-to-solid ratio of urine and salt solids added each time to not exceed a certain value.
[0018] A further feature of this invention is that the salt-based solid fertilizer is composed of one or more of potassium chloride, potassium dihydrogen phosphate, potassium phosphate, and potassium sulfate. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the internal structure of a specific embodiment of the present utility model;
[0020] Figure 2 This is a top view of the structure of this utility model after the light-transmitting cover plate has been removed in a specific embodiment;
[0021] Figure 3 This is a schematic diagram of the structure in a specific embodiment of the present invention, in which the absorbent strip is embedded in a urine-salt solid mixture;
[0022] Figure 4The utility model discloses a light-transmitting cover plate structure schematic diagram.
[0023] In the figure: urine treatment pool 1, urine area 11, dehumidification area 12, partition 13, urine inlet pipe 2, drain pipe 3, light-transmitting cover plate 4, light-transmitting plate block 41, feeding port 5, dehumidification device 6, water storage tank 7, condensate pipe 8, water absorption strip 9, sunny side 91, check valve 10, overflow pipe 14. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0025] As Figures 1-4 The utility model discloses a device for quickly treating source separation urine, which comprises a urine treatment pool 1, a urine inlet pipe 2 and a drain pipe 3. The urine inlet pipe 2 is made of a DN 50 PVC pipe with an opening diameter of 2 mm and an opening rate of 30%. The urine inlet pipe 2 is 0.9 m away from the ground. Check valves 10 are installed on the urine inlet pipe 2 and the drain pipe 3 to prevent the overflow of substances in the urine treatment pool from the urine inlet pipe and the communication between the outside and the inside, as well as the entry of wet air from the outside into the urine treatment pool through the drain pipe. The check valves can also be used for the opening and closing of the corresponding pipelines. A small electromagnetic flowmeter and a control valve are also installed on the urine inlet pipe 2. The electromagnetic flowmeter is used to calculate the fluid flow through the urine inlet pipe, and the control valve is used to control the fluid flow through the urine inlet pipe. The control valve can be a check valve. A light-transmitting cover plate 4 is arranged on the top of the urine treatment pool 1. The light-transmitting cover plate is made of glass, organic glass, tempered film or other light-transmitting materials, which can allow sunlight to penetrate into the urine treatment pool. The light-transmitting cover plate 4 is composed of multiple light-transmitting plate blocks 41. Outer frames are arranged outside each light-transmitting plate block. The outer frames are buckled, overlapped or inserted between each other. The urine treatment pool 1 is provided with a feeding port 5 for the feeding of salt solid and a batching system for automatically controlling the ratio of urine and salt solid in the pool. The batching system is a prior design and is not shown in the figure. The salt solid fertilizer is composed of one or more of potassium chloride, potassium dihydrogen phosphate, potassium phosphate and potassium sulfate. The batching system can be set to control the liquid-solid ratio of urine and salt solid to be no more than 5:1.
[0026] Specifically, the urine treatment tank 1 is also provided with a dehumidification device 6, and the light-transmitting cover plate 4 is detachably arranged on the top opening of the urine treatment tank 1 for the crystallization removal of the urine-salt solid mixture. The urine treatment tank 1 has a urine area 11 and a dehumidification area 12, and the two areas are separated by a partition plate 13 and are communicated at the upper part. The height of the partition plate 13 is 0.8 m, and the main function is to isolate the contact between the urine and the dehumidification device and reduce the loss of the dehumidification device. The urine area 11 is used for the addition of urine and salt solid, and the urine inlet pipe 2 and the pouring opening 5 are communicated with the urine area 11. The dehumidification area 12 is also provided with the dehumidification device 6 and a water storage tank 7, and the dehumidification device 6 and the water storage tank 7 are connected through a condensate pipe 8. The dehumidification device 6 can automatically open and close according to the air humidity in the tank, and the generated condensate flows into the water storage tank 7 for storage. The drain pipe 3 is connected at the bottom of the water storage tank 7 and is used for draining the condensate in the tank. When the condensate in the tank is accumulated to a certain degree, the drain pipe 3 is opened to drain. The overflow pipe 14 is also connected to the urine area 11. The overflow pipe 14 is made of a DN 50 PVC pipe with an opening diameter of 2 mm and an opening rate of 30%. The distance from the ground is 0.7 m. The overflow pipe 14 is used for the overflow of the liquid in the urine area, which can prevent too much urine from entering and damaging the dehumidification device when the liquid level exceeds the partition plate.
[0027] Specifically, a plurality of water absorption strips 9 are also included. The water absorption strips 9 enter and exit the inside of the urine treatment tank 1 from the top opening, and the lower end of the water absorption strip 9 is embedded in the urine-salt solid mixture and is in a vertical state. The water absorption strip is composed of one or more of cotton, linen, nylon, and polyester raw materials, and is processed by extrusion or twisted into a relatively hard water absorption strip, so as to be in a vertical state, or a hard paper sleeve is also sleeved outside the water absorption strip to maintain the vertical state. After the water absorption is relatively large, the water absorption strip can be replaced. The light-transmitting cover plate 4 on the top of the tank has a slope, which is inclined upward from left to right. The water absorption strip 9 is inclined to the right from bottom to top, and the sunny side 91 of the water absorption strip 9 on the side facing the light-transmitting cover plate 4 is a concave inclined surface. The "sunny side" is the left side of the water absorption strip 9. Of course, the light-transmitting cover plate 4 can also be inclined upward from back to front, and the water absorption strip 9 can also be inclined forward from bottom to top. Before use, the water absorption strip also needs to be treated by ultraviolet sterilization. When the ultraviolet lamp is used for sterilization, a 4 W ultraviolet lamp is used. When high-temperature sterilization is used, the sterilization temperature is 121 ℃, and the sterilization time is controlled within 30 min.
[0028] In use, first, the source separation urine and salt solid with liquid-solid ratio of 5:1 are added into the urine area 11 through the batching system control, wherein the urine enters through the urine inlet pipe 2, and the salt solid enters through the throwing opening 5, and the reaction principle of the urine and the salt solid is that: urease is used as enzyme protein, under the condition of high concentration of salt, by affecting the electrostatic interaction, solvation effect, hydrophobic effect and hydrogen bond stability in the protein, the structure of the protein is denatured or aggregated, and finally the protein is inactivated, and the inactivation of the urease makes the urea in the urine not hydrolyzed, so that the nitrogen loss caused by the escape of ammonia gas generated by hydrolysis is avoided, and the nutrient substances in the urine can be retained to the maximum extent;
[0029] Then, the water absorption strip 9 is buried in the urine-salt solid mixture, the urine-salt solid mixture and the water absorption strip in the urine area 11 are irradiated and heated by sunlight through the top light-transmitting cover plate 4, and water evaporation is promoted; when the air humidity in the urine treatment pool 1 reaches a certain degree, the dehumidification device 6 is automatically opened, the air containing water vapor is condensed into liquid under the action of the dehumidification device 6 and is discharged into the water storage tank 7 through the condensate water pipe 8, the circulation of the air flow in the pool is realized under the action of the rising of hot air and the suction of the dehumidification device 6, the evaporation is promoted, and then the water is discharged through the drain pipe 3 at the bottom of the water storage tank 7, so that the water in the urine is quickly removed, and the volume is reduced.
[0030] Under the comprehensive action of the salt solid, the dehumidification device 4, the light-transmitting cover plate 5 and the water absorption strip 9 and the like, the urine is quickly evaporated and crystallized to become a solid, so that the effective concentration and recovery of nitrogen are realized; meanwhile, the recycling of water resources is realized.
[0031] It should be noted that, in the description of the utility model, all the directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement condition and the like between the components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directional indications also change accordingly.
[0032] In addition, in the description of the utility model, the meaning of “several” and “several” is at least two, for example, two, three, etc., unless otherwise specifically limited.
[0033] In the description of the utility model, unless otherwise specifically specified and limited, the terms “installation”, “connection”, “coupling”, “connection”, “fixing” should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, or the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
Claims
1. A device for rapidly processing source-separated urine, comprising a urine treatment tank (1), a urine inlet pipe (2), and a drain pipe (3), wherein a light-transmitting cover plate (4) is provided on the top of the urine treatment tank (1), characterized in that: The urine treatment tank (1) has an inlet (5) for adding salt solids and a batching system that can automatically control the ratio of urine and salt solids added to the tank. A dehumidification device (6) is also provided in the urine treatment tank (1). The light-transmitting cover (4) is detachably installed on the top opening of the urine treatment tank (1). The top opening is used for crystallization and extraction of the urine-salt solid mixture.
2. The apparatus for rapidly processing source-separated urine according to claim 1, characterized in that: The urine treatment tank (1) has a urine zone (11) and a dehumidification zone (12). The two zones are separated by a partition (13) and are connected at the top. The urine zone (11) is used for adding urine and salt solids. The urine inlet pipe (2) and the discharge port (5) are connected to the urine zone (11). The dehumidification zone (12) is also equipped with a dehumidification device (6) and a water storage tank (7). The dehumidification device (6) and the water storage tank (7) are connected by a condensate pipe (8). The dehumidification device (6) can automatically switch on and off according to the air humidity in the tank and collect the generated condensate in the water storage tank (7). The drain pipe (3) is connected to the bottom of the water storage tank (7) and is used to drain the condensate in the tank.
3. The apparatus for rapidly processing source-separated urine according to claim 1, characterized in that: It also includes multiple absorbent strips (9), which enter and exit the urine treatment tank (1) from the top opening. The lower end of the absorbent strips (9) is embedded in the urine-salt solid mixture and is in a vertical position.
4. The apparatus for rapidly processing source-separated urine according to claim 3, characterized in that: The light-transmitting cover (4) on the top of the urine treatment tank (1) has a slope and is set upward from left to right. The water-absorbing strip (9) is set upward from bottom to right and the sun-facing side (91) of the water-absorbing strip (9) facing the light-transmitting cover (4) is a concave slope.
5. A device for rapidly processing source-separated urine according to claim 1, 2, 3, or 4, characterized in that: The inlet tube (2) is also equipped with a small electromagnetic flow meter and a control valve. The electromagnetic flow meter is used to calculate the flow rate of fluid entering through the inlet tube, and the control valve is used to control the flow rate of fluid passing through the inlet tube.
6. The apparatus for rapidly processing source-separated urine according to claim 1, 2, 3, or 4, characterized in that: The light-transmitting cover (4) is made up of multiple light-transmitting panels (41) spliced together.
7. The apparatus for rapidly processing source-separated urine according to claim 1, 2, 3, or 4, characterized in that: The mixing system can be set to control the liquid-to-solid ratio of urine and salt solids added each time to not exceed 5:1.
Citation Information
Patent Citations
Ecological toilet
CN110512905A