Intelligent sewage treatment system for plateau alpine region

Abstract

The utility model discloses an intelligent sewage treatment system for plateau alpine regions, which comprises a pre-treatment system, a plurality of anaerobic tanks, a biochemical tank, a water collecting tank and a post-treatment system which are positioned below an overburden layer and are arranged side by side, and a biogas heating system, a solar heating system and a breeze power generation heating system are arranged above the overburden layer. A liquid inlet pipe in the biogas heating system is communicated with the treatment tank in the pretreatment system, a liquid outlet pipe is communicated with the front end of the anaerobic tank, the biogas heating system collects biogas generated in the anaerobic tank, heat energy is generated through combustion, liquid entering from the liquid inlet pipe is heated, and the liquid flows out through the liquid outlet pipe after being heated; a water inlet pipe and a water outlet pipe of the solar heating system are respectively communicated with the water collecting tank and the anaerobic tank; and the breeze power generation heating system supplies heat energy to the interior of the anaerobic tank through electrification. The temperature during sewage treatment is automatically and intelligently controlled, so that the sewage temperature is suitable for microbial activity, and the device can normally operate in winter in high-cold and high-altitude areas.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an intelligent wastewater treatment system for high-altitude and cold regions. Background Technology

[0002] Currently, traditional wastewater treatment processes struggle to meet effluent standards under cold winter conditions. This is especially true in high-altitude, cold regions of Northwest China, where temperatures are frigid, oxygen levels are low, and influent temperatures can drop below 4°C. In these conditions, most microorganisms enter a dormant or dead state, rendering traditional wastewater treatment processes completely inoperable.

[0003] In view of this, an intelligent wastewater treatment system for high-altitude and cold regions is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide an intelligent wastewater treatment system for high-altitude and cold regions. By setting up a pretreatment system, anaerobic tank, biological tank, collection tank and post-treatment system below the soil cover layer, and setting up a biogas heating system, solar heating system and micro wind power generation heating system above the soil cover layer, the system can automatically and intelligently control the temperature of wastewater during treatment, so that the wastewater temperature is suitable for microbial activity and can operate normally in winter in high-altitude and cold regions.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0006] A high-altitude, cold-climate intelligent wastewater treatment system includes a pretreatment system, multiple anaerobic tanks, a biological treatment tank, a collection tank, and a posttreatment system arranged side-by-side below a soil cover layer. Above the soil cover layer are a biogas heating system, a solar heating system, and a micro-wind power generation heating system. The inlet pipe of the biogas heating system is connected to the treatment tank in the pretreatment system, and the outlet pipe is connected to the front end of the anaerobic tank. The biogas heating system collects biogas generated in the anaerobic tank, generates heat through combustion, and heats the liquid entering through the inlet pipe. The heated liquid then flows out through the outlet pipe. The inlet and outlet pipes of the solar heating system are connected to the collection tank and the anaerobic tank, respectively. The micro-wind power generation heating system provides internal electrical heating to the anaerobic tank.

[0007] Furthermore, the treatment tank is equipped with a booster pump connected to the inlet pipe, and each anaerobic tank is equipped with a biogas collector at the top, with a collection pipe connected to the biogas heating system at the top of the biogas collector.

[0008] Furthermore, through holes are provided between adjacent anaerobic tanks and the adjacent through holes are staggered. Each anaerobic tank is equipped with combined packing material and electric heating plates. Multiple electric heating plates are connected in series and connected to a micro wind power generation system through a power transmission line.

[0009] Furthermore, the interior of the biological treatment tank is provided with a water distribution pipe, an air distribution pipe, an air collection pipe, and a water collection pipe arranged from top to bottom. A process pump is installed inside the anaerobic tank near the biological treatment tank, and the process pump is connected to the water distribution pipe through a pipeline.

[0010] Furthermore, the interior of the biochemical tank is filled with hard catalytic packing material, one end of the water collection pipe is provided with a water collection port connected to the water collection tank, and the gas distribution pipe is connected to the blower through a pipeline.

[0011] Furthermore, the water collection tank is equipped with a reflux pump and a water collection pump. The reflux pump is connected to the water inlet pipe of the solar heating system, and the water collection pump is connected to the post-treatment system through a pipeline. The post-treatment system is equipped with a discharge port.

[0012] Furthermore, the biogas heating system includes a desulfurizer, a filter, a water seal tank, a biogas storage tank, and a boiler, which are connected in sequence to the collection pipe, with the inlet pipe and outlet pipe located at both ends of the boiler, respectively.

[0013] Furthermore, a compressor is installed between the boiler and the biogas storage tank.

[0014] Furthermore, the solar heating system includes a water storage tank and a heat exchanger located inside the water storage tank. A heat collection pipe is connected to the bottom of the water storage tank. The inlet pipe and outlet pipe pass through both ends of the water storage tank and are connected to the ends of the heat exchanger.

[0015] Furthermore, the micro-wind power generation and heating system includes a micro-wind generator set, a power manager, and an energy storage device that are electrically connected in sequence. The power manager is electrically connected to a control switch and to an electric heating plate through a power transmission line.

[0016] The beneficial effects of this utility model are:

[0017] This invention utilizes a pretreatment system, multiple anaerobic tanks, a biological treatment tank, a collection tank, and a post-treatment system located below the soil cover layer, while a biogas heating system, a solar heating system, and a micro-wind power generation heating system are installed above the soil cover layer. This fully leverages biogas, solar, and wind energy resources to heat the wastewater inside the anaerobic tanks. It employs an anaerobic-based process, supplemented by anoxic and facultative processes, adapting to the oxygen-scarce environment of high-altitude regions. Furthermore, under the control of an external controller, the system intelligently activates the biogas, solar, and wind energy to heat the wastewater, increasing its temperature. This efficiently and cost-effectively maintains the wastewater temperature within a range suitable for microbial activity, ensuring the wastewater treatment plant can operate normally even in winter in cold, high-altitude regions, thus improving wastewater treatment efficiency and effectiveness. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the biogas heating system of this utility model;

[0020] Figure 3 This is a schematic diagram and side view of the solar heating system of this utility model;

[0021] Figure 4 This is a schematic diagram of the micro-wind power generation and heating system of this utility model.

[0022] Attached reference numerals: 1-Pretreatment system, 10-Treatment tank, 11-Boost pump, 12-Inlet, 2-Biogas heating system, 20-Biogas collector, 21-Collection pipe, 23-Desulfurizer, 24-Filter, 25-Water seal tank, 26-Biogas storage tank, 27-Compressor, 28-Boiler, 280-Inlet pipe, 281-Outlet pipe, 3-Solar heating system, 30-Water storage tank, 300-Inlet pipe, 301-Outlet pipe, 31-Collector tube, 32-Heat exchanger, 4-Micro-wind power generation heating system 40-Micro wind turbine generator set, 41-Power manager, 42-Energy storage device, 43-Output switch, 45-Transmission line, 46-Electric heating plate, 5-Anaerobic tank, 50-Through hole, 51-Combined packing, 52-Process pump, 6-Biological tank, 60-Water distribution pipe, 61-Gas distribution pipe, 62-Gas collection pipe, 63-Water collection pipe, 64-Hard catalytic packing, 65-Fan, 66-Water inlet, 7-Water collection tank, 70-Recirculation pump, 71-Water collection pump, 8-Post-treatment system, 80-Discharge outlet, 9-Covering layer. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0024] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example

[0027] An embodiment of this utility model is an intelligent wastewater treatment system for high-altitude and cold regions, comprising a pretreatment system 1, multiple anaerobic tanks 5, a biochemical tank 6, a collection tank 7, and a posttreatment system 8 arranged side by side below a soil cover layer 9. Above the soil cover layer 9, a biogas heating system 2, a solar heating system 3, and a micro-wind power generation heating system 4 are arranged. The inlet pipe 280 of the biogas heating system 2 is connected to the treatment tank 10 in the pretreatment system 1, and the outlet pipe 281 is connected to the front end of the anaerobic tank 5. The biogas heating system 2 collects biogas generated in the anaerobic tank 5, generates heat energy through combustion, heats the liquid entering from the inlet pipe 280, and then flows out through the outlet pipe 281. The inlet pipe 300 and outlet pipe 301 of the solar heating system 3 are connected to the collection tank 7 and the anaerobic tank 5, respectively. The micro-wind power generation heating system 4 provides internal heating energy to the anaerobic tank 5 through electricity.

[0028] Reference Figure 1 The technical concept of this utility model is to adopt an anaerobic process as the main component, supplemented by anoxic and facultative anaerobic processes, so that this wastewater treatment system can better adapt to the oxygen-scarce environment of high-altitude areas. Simultaneously, the entire process facility is buried underground within a soil cover layer 9, which is beneficial for heat preservation and suitable for cold and high-altitude regions. A biogas heating system 2, a solar heating system 3, and a micro-wind power generation heating system 4 are installed above the soil cover layer 9. The temperature of the wastewater is intelligently controlled by an external controller to ensure that the temperature meets the growth requirements of microorganisms, allowing wastewater treatment to continue even in winter in cold and high-altitude regions, thus improving the efficiency and effectiveness of wastewater treatment in these areas.

[0029] This application includes multiple anaerobic digesters 5. During wastewater treatment, anaerobic reactions occur, producing a large amount of biogas, i.e., methane. Direct emission of biogas would pollute the atmosphere. Therefore, the biogas produced in the anaerobic digesters 5 is collected to power the biogas heating system 2. The biogas heating system 2 mainly transfers wastewater from the treatment tank 10 through the inlet pipe 280 into its interior, where it is heated by the heat energy provided by the biogas collected from the anaerobic digesters 5. The heated wastewater is then transferred back into the anaerobic digesters 5. High-altitude areas also have abundant solar energy resources. The solar heating system 3, under solar conditions, transforms the wastewater in the collection tank 7 into heated wastewater through the inlet pipe 300 and outlet pipe 301 before it re-enters the anaerobic digesters 5 for secondary treatment. High-altitude and cold regions have abundant wind resources. Installing a micro-wind power generation heating system 4 in these areas can fully utilize wind power to generate electricity, which will be used to heat the wastewater inside the anaerobic digesters 5.

[0030] Furthermore, the treatment tank 10 is equipped with a lift pump 11 connected to the inlet pipe 280. The lift pump 11, under the action of an external controller, transfers the wastewater within the treatment tank 10. Each anaerobic tank 5 has a biogas collector 20 at its top, and the top of the biogas collector 20 is equipped with a collection pipe 21 connected to the biogas heating system 2. The biogas collector 20, located at the top of the anaerobic tank 5, collects the biogas generated during the reaction process in the anaerobic tank 5 and supplies energy to the biogas heating system 2.

[0031] It should be noted that the pretreatment system 1 includes pretreatment facilities such as an influent flow meter, a bar screen, a grit chamber, an oil separator, and a regulating tank. The posttreatment system 8 includes a secondary sedimentation tank, a phosphorus removal system, a filtration system, a disinfection system, and an effluent flow meter. Pretreatment system 1 and posttreatment system 8 are similar to conventional systems in the prior art and will not be described in detail further. Additionally, the thickness of the cover layer 9 in this application is greater than the thickness of the frozen soil layer in winter, and each tank is connected to the ground via a vertical shaft.

[0032] Furthermore, in multiple anaerobic tanks 5 arranged side by side, through holes 50 are provided between adjacent anaerobic tanks 5, and adjacent through holes 50 are staggered. Each anaerobic tank 5 is equipped with a combined packing material 51 and an electric heating plate 46. Multiple electric heating plates 46 are connected in series and connected to a micro-wind power generation system via a transmission line 45. The through holes 50 connect the wastewater in adjacent anaerobic tanks 5. The combined packing material 51 is a prior art technology that improves the efficiency and stability of wastewater treatment by optimizing microbial attachment and reaction conditions.

[0033] Furthermore, electric heating plates 46 are installed inside the anaerobic tank 5. The electrical energy provided by the micro-wind power generation drives multiple electric heating plates 46 to work through the transmission line 45, ensuring that the sewage inside the anaerobic tank 5 is in a heated state.

[0034] Meanwhile, to transfer the wastewater from the anaerobic tank 5 to the biological treatment tank 6 for further treatment, the biological treatment tank 6 is equipped with a water distribution pipe 60, an air distribution pipe 61, an air collection pipe 62, and a water collection pipe 63 arranged sequentially from top to bottom. A process pump 52 is installed inside the anaerobic tank 5 near the biological treatment tank 6, and the process pump 52 is connected to the water distribution pipe 60 via a pipe. The biological treatment tank 6 is filled with rigid catalytic packing material 64. One end of the water collection pipe 63 has a water collection port 66 connected to the water collection tank 7, and the air distribution pipe 61 is connected to a blower 65 via a pipe.

[0035] Process pump 52 transfers wastewater from the anaerobic tank 5 to the distribution pipe 60, ensuring the wastewater is evenly distributed within the biological treatment tank 6 and comes into full contact with the rigid catalytic packing material 64, thus improving wastewater treatment efficiency. Simultaneously, blower 65, positioned above the cover layer 9, transfers external air through pipes to the air distribution pipe 61 within the biological treatment tank 6. The air distribution pipe 61 evenly distributes the air within the biological treatment tank 6, reacting with the wastewater. The air is then transferred to the outside of the biological treatment tank 6, i.e., outside the cover layer 9, through the air collection pipe 62. The wastewater that has undergone biological treatment is then transferred to the collection tank 7 through the collection port 66 of the collection pipe 63.

[0036] Optionally, the collection tank 7 is equipped with a return pump 70 and a collection pump 71. The return pump 70 is connected to the inlet pipe 300 of the solar heating system 3, and the collection pump 71 is connected to the post-treatment system 8 through a pipeline. The post-treatment system 8 is provided with a discharge port 80. By installing the return pump 70 and the collection pump 71 inside the collection tank 7, the wastewater can be selected to either enter the solar heating system 3 for heating and treatment via the return pump 70 and then return to the front end of the anaerobic tank 5, depending on the current wastewater treatment status. The remaining wastewater is transported to the post-treatment system 8 via the collection pump 71 for treatment and then discharged through the discharge port 80.

[0037] Reference Figure 2 In the biogas heating system 2, the biogas heating system 2 includes a desulfurizer 23, a filter 24, a water seal tank 25, a biogas storage tank 26, and a boiler 28, which are sequentially connected to the collection pipe 21. The inlet pipe 280 and the outlet pipe 281 are located at opposite ends of the boiler 28. A compressor 27 is installed between the boiler 28 and the biogas storage tank 26. Biogas collected from the anaerobic digester 5 enters the desulfurizer 23 through the collection pipe 21 for desulfurization, then enters the filter 24 to remove impurities from the biogas, and then enters the biogas storage tank 26 through the water seal tank 25. When heating is required, the compressor 27 is started to send the pressurized biogas into the biogas boiler 28 for combustion. The wastewater liquid to be heated enters the boiler 28 through the inlet pipe 280, and the heated wastewater liquid flows out of the front end of the anaerobic digester 5 through the outlet pipe 281.

[0038] Reference Figure 3In the solar heating system 3, the solar heating system 3 includes a water storage tank 30 and a heat exchanger 32 located inside the water storage tank 30. A heat collection tube 31 is connected to the bottom of the water storage tank 30. An inlet pipe 300 and an outlet pipe 301 pass through both ends of the water storage tank 30 and are connected to the end of the heat exchanger 32. The heat collection tube 31 is a double-layered glass tube with a vacuum between the inner and outer layers. The inner tube wall is coated with a spectrally selective coating, which effectively absorbs energy from sunlight, converting it into heat energy to heat the liquid inside the inner tube. The inner tube is connected to the water storage tank 30, exchanging heat with the liquid in the water storage tank 30 to maintain a high temperature. The heat exchanger 32 is embedded inside the water storage tank 30. The heat exchanger 32 absorbs the heat energy from the water storage tank 30 and conducts the heat energy into its interior. One end of the heat exchanger 32 is connected to the inlet pipe 300, and the other end is connected to the outlet pipe 301. Wastewater in the collection tank 7 is heated by a return pump 70 and an inlet pipe 300 via a heat exchanger 32, and then sent to the front end of the anaerobic tank 5 through an outlet pipe 301. The storage tank 30 is filled with antifreeze to prevent freezing in cold temperatures. By connecting multiple solar heating systems 3 in series, better heating effects can be achieved in particularly cold regions. The number of solar heating systems 3 can be set according to actual conditions.

[0039] Reference Figure 4 In the micro-wind power generation and heating system 4, the micro-wind power generation and heating system 4 includes a micro-wind generator set 40, a power manager 41, and an energy storage device 42 connected in sequence. The power manager 41 is electrically connected to a control switch and to an electric heating plate 46 via a transmission line 45. The electrical energy output from the micro-wind generator set 40 is sent to the energy storage device 42 via the power manager 41. As needed, the power manager 41 controls the output switch 43 to supply power to the electric heating plate 46 inside the anaerobic tank 5 via the transmission line 45, thereby heating the wastewater inside the anaerobic tank 5.

[0040] It should be noted that the electrical energy generated by the micro-wind power generation and heating system 4 is automatically stored in the energy storage device 42 when there is wind. The system only starts supplying power when the sewage temperature is below the threshold and the solar heating system 3 and biogas heating system 2 cannot meet the heating requirements.

[0041] The working principle of this utility model is as follows: a pretreatment system 1, multiple anaerobic tanks 5, a biological tank 6, a water collection tank 7, and a posttreatment system 8 are set below the soil cover layer 9. A biogas heating system 2, a solar heating system 3, and a micro-wind power generation heating system 4 are set above the soil cover layer 9. The biogas energy, solar energy resources, and wind energy resources are fully utilized to heat the sewage inside the anaerobic tank 5. The process is mainly anaerobic, supplemented by anoxic and facultative anaerobic processes, which are adapted to the oxygen-scarce environment of high-altitude areas. Under the action of an external controller, the biogas energy, solar energy, and wind energy are intelligently activated to heat the sewage and increase the temperature of the sewage. This maintains the sewage temperature within a range suitable for microbial activity in a high-efficiency and low-cost manner, ensuring that the sewage treatment plant can operate normally in winter in high-altitude and cold regions, thereby improving the efficiency and effect of sewage treatment.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. An intelligent wastewater treatment system for high-altitude and cold regions, characterized in that, The system includes a pretreatment system (1) located below the cover layer (9) and arranged side by side, multiple anaerobic tanks (5), a biochemical tank (6), a water collection tank (7), and a posttreatment system (8). Above the cover layer (9) are a biogas heating system (2), a solar heating system (3), and a micro-wind power generation heating system (4). The inlet pipe (280) of the biogas heating system (2) is connected to the treatment tank (10) in the pretreatment system (1), and the outlet pipe (281) is connected to the treatment tank (10) in the pretreatment system (1). The biogas heating system (2) is connected to the front end of the anaerobic tank (5). It collects the biogas generated in the anaerobic tank (5), generates heat energy through combustion, heats the liquid entering from the inlet pipe (280), and flows out through the outlet pipe (281) after heating. The inlet pipe (300) and outlet pipe (301) of the solar heating system (3) are connected to the water collection tank (7) and the anaerobic tank (5) respectively. The micro-wind power generation heating system (4) provides electric heating energy to the inside of the anaerobic tank (5).

2. The intelligent wastewater treatment system for high-altitude and cold regions according to claim 1, characterized in that, The treatment tank (10) is equipped with a booster pump (11) connected to the liquid inlet pipe (280). Each anaerobic tank (5) is equipped with a biogas collector (20) at the top, and the top of the biogas collector (20) is equipped with a collection pipe (21) connected to the biogas heating system (2).

3. The intelligent wastewater treatment system for high-altitude and cold regions according to claim 1, characterized in that, A through hole (50) is provided between adjacent anaerobic tanks (5) and the adjacent through holes (50) are staggered. Each anaerobic tank (5) is equipped with a combination packing material (51) and an electric heating plate (46). Multiple electric heating plates (46) are connected in series and connected to the micro wind power generation system through a power transmission line (45).

4. The intelligent wastewater treatment system for high-altitude and cold regions according to claim 1, characterized in that, The biochemical tank (6) is provided with a water distribution pipe (60), an air distribution pipe (61), an air collection pipe (62) and a water collection pipe (63) arranged from top to bottom. The anaerobic tank (5) near the biochemical tank (6) is provided with a process pump (52), which is connected to the water distribution pipe (60) through a pipe.

5. The intelligent wastewater treatment system for high-altitude and cold regions according to claim 4, characterized in that, The interior of the biochemical tank (6) is filled with hard catalytic packing material (64), and one end of the water collection pipe (63) is provided with a water collection port (66) connected to the water collection tank (7). The gas distribution pipe (61) is connected to the blower (65) through a pipeline.

6. The intelligent wastewater treatment system for high-altitude and cold regions according to claim 4, characterized in that, The water collection tank (7) is equipped with a reflux pump (70) and a water collection pump (71). The reflux pump (70) is connected to the water inlet pipe (300) of the solar heating system (3). The water collection pump (71) is connected to the post-treatment system (8) through a pipeline. The post-treatment system (8) is equipped with a discharge port (80).

7. The intelligent wastewater treatment system for high-altitude and cold regions according to claim 4, characterized in that, The biogas heating system (2) includes a desulfurizer (23), a filter (24), a water seal tank (25), a biogas storage tank (26), and a boiler (28) connected in sequence with the collection pipe (21). The inlet pipe (280) and the outlet pipe (281) are located at both ends of the boiler (28).

8. The intelligent wastewater treatment system for high-altitude and cold regions according to claim 7, characterized in that, A compressor (27) is installed between the boiler (28) and the biogas storage tank (26).

9. The intelligent wastewater treatment system for high-altitude and cold regions according to claim 7, characterized in that, The solar heating system (3) includes a water storage tank (30) and a heat exchanger (32) located inside the water storage tank (30). A heat collection pipe (31) is connected to the bottom of the water storage tank (30). The inlet pipe (300) and the outlet pipe (301) pass through both ends of the water storage tank (30) and are connected to the ends of the heat exchanger (32).

10. The intelligent wastewater treatment system for high-altitude and cold regions according to claim 7, characterized in that, The micro-wind power generation and heating system (4) includes a micro-wind generator set (40), a power manager (41) and an energy storage device (42) connected in sequence. The power manager (41) is electrically connected to a control switch and connected to an electric heating plate (46) through a power transmission line (45).

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