High-altitude low-temperature area sewage and electrolytic hydrogen production integrated treatment device

Abstract

The utility model discloses a sewage and electrolytic hydrogen production integrated treatment device for high-altitude and low-temperature areas, which belongs to the technical field of sewage and wastewater utilization in the high-altitude and low-temperature areas and comprises a wind and light power generation module, a heat preservation module, a sewage treatment module and an electrolysis module. The heat preservation module is used for keeping the constant temperature of the sewage treatment module; the electrolysis module comprises a PEM electrolytic bath and a fuel cell; the PEM electrolytic bath is used for electrolyzing water to generate oxygen and hydrogen which are respectively used for supplying oxygen to the sewage treatment module and supplying hydrogen to the fuel cell; the wind-solar power generation module and the fuel cell are both used for providing electric energy for the heat preservation module, the sewage treatment module and the PEM electrolytic bath. The sewage and electrolytic hydrogen production integrated treatment device for the high-altitude and low-temperature region can effectively solve the problems of low treatment efficiency, unstable operation, high energy consumption and the like generally faced by a high-altitude sewage treatment plant in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the high altitude low temperature area sewage and electrolytic hydrogen integrated processing device of waste water utilization technical field, specifically related to a high altitude low temperature area sewage and electrolytic hydrogen integrated processing device. BACKGROUND

[0002] With the continuous promotion of ecological civilization construction in plateau areas, water pollution problems have become increasingly serious in plateau areas, and the demand for sewage treatment facilities has increased dramatically. However, the specific natural conditions of high-altitude areas, such as low air pressure, low oxygen content, low temperature environment and strong ultraviolet radiation, have a significant negative impact on the efficiency of the sewage treatment process and the treatment plant. These problems include reduced microbial activity in low-temperature environments, insufficient oxygen supply in plateau areas due to reduced oxygen partial pressure, and hindered nitrification due to insufficient aeration intensity. In addition, the design and construction of sewage treatment plants in plateau areas often directly adopt the experience and mode of inland areas, but due to the unique natural environment and social life characteristics of plateau areas, the influent and effluent water quality of these treatment plants often fails to meet the design standards. Compared with plain areas, high-altitude sewage treatment plants generally face low treatment efficiency, unstable operation and high energy consumption. SUMMARY

[0003] The utility model discloses a high altitude low temperature area sewage and electrolytic hydrogen integrated processing device to solve the prior art high altitude sewage treatment plant generally faces low treatment efficiency, unstable operation and high energy consumption. In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0004] A high altitude low temperature area sewage and electrolytic hydrogen integrated processing device, comprising a wind and light power generation module, a heat preservation module, a sewage treatment module and an electrolysis module; the heat preservation module is used to keep the sewage treatment module constant temperature; the electrolysis module comprises a PEM electrolytic cell and a fuel cell; the PEM electrolytic cell is used to electrolyze water to produce oxygen and hydrogen, which are used for oxygen supply of the sewage treatment module and hydrogen supply of the fuel cell respectively; the wind and light power generation module and the fuel cell are used to provide electric energy for the heat preservation module, the sewage treatment module and the PEM electrolytic cell.

[0005] Further, the sewage treatment module comprises a biochemical tank and a membrane distillation treatment device; the biochemical tank comprises a first outlet and a second outlet; the second outlet is communicated with the membrane distillation treatment device through a pipeline.

[0006] Further, the biochemical tank is sequentially provided with an anaerobic zone, an aerobic zone, an anoxic zone and a sedimentation tank along the flow direction of the sewage.

[0007] Further, the heat preservation module comprises a heating layer and a heat preservation layer; the heat preservation layer is arranged on the outer wall of the biochemical tank; the heating layer is arranged on the inner wall of the biochemical tank; and the heating layer is a thin film heater.

[0008] Further, the electrolysis module further comprises an oxygen treatment unit and a hydrogen treatment unit; the oxygen outlet of the PEM electrolytic cell is communicated with the oxygen treatment unit through a pipeline; the oxygen treatment unit delivers oxygen to the aerobic zone through a pipeline; the hydrogen outlet of the PEM electrolytic cell is communicated with the hydrogen treatment unit through a pipeline; and the hydrogen treatment unit delivers hydrogen to the fuel cell through a pipeline.

[0009] Further, the oxygen treatment unit comprises a first gas-liquid separator, a first scrubber, a first cooler and an oxygen storage tank which are sequentially communicated; and the oxygen storage tank is communicated with the aerobic zone through a pipeline.

[0010] Further, the hydrogen treatment unit comprises a second gas-liquid separator, a second scrubber, a second cooler and a hydrogen storage tank which are sequentially communicated; and the hydrogen storage tank is used for providing hydrogen fuel for the fuel cell.

[0011] Further, the wind-solar power generation module comprises photovoltaic panels, a DC-DC inverter, a storage battery and a controller which are sequentially electrically connected; and the controller is electrically connected with the thin film heater, the membrane distillation treatment device and the PEM electrolytic cell.

[0012] Further, the wind-solar power generation module further comprises a fan and an AC-DC inverter; and the fan, the AC-DC inverter and the storage battery are sequentially electrically connected.

[0013] Further, the heat preservation layer is aerogel.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. Efficient energy utilization: the device utilizes the abundant wind energy and solar energy in high-altitude areas through a wind-solar complementary system, fully utilizes the solar energy and wind energy during the day, provides stable power supply for the sewage treatment system, reduces the dependence on traditional power, and reduces energy costs.

[0016] 2. Enhance the aeration efficiency of the biochemical tank: the oxygen generated by the electrolytic cell is supplied to the biochemical tank, which can effectively improve the aeration efficiency and improve the effect of sewage treatment, especially in high-altitude and low-temperature areas, due to the adverse effect of thin oxygen on microbial activity, the supplement of oxygen can enhance the metabolic activity of microorganisms, and significantly improve the efficiency of sewage treatment.

[0017] 3. Temperature control and insulation: The insulation module can intelligently adjust according to the real-time changes of external temperature, effectively dealing with the low temperature environment in high altitude areas, ensuring that the biochemical pool always operates at the most suitable temperature, thereby further improving the efficiency and effect of sewage treatment.

[0018] 4. Reducing costs and increasing income: With the same effect, the requirement for air aeration power is high, resulting in high power cost and large equipment such as air blower, while the blowing power and equipment size required for pure oxygen aeration are reduced. When there is excess electricity, the excess electricity can be fed into the grid, increasing income.

[0019] 5. Environmentally friendly: The system is based on renewable energy, reducing greenhouse gas emissions and helping to promote environmental protection and energy saving and emission reduction. By using wind-solar complementary and hydrogen energy storage technology, the energy self-sufficiency of sewage treatment is effectively improved, and the special environmental requirements of high altitude and low temperature areas are met. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a schematic view of the present utility model;

[0021] Fig. 2 is a flow chart of the present utility model;

[0022] In the figure: 1, photovoltaic panel; 2, DC-DC inverter; 3, battery; 4, AC-DC inverter; 5, fan; 6, controller; 7, insulation module; 8, biochemical pool; 9, membrane distillation treatment device; 10, electrolytic cell; 11, first gas-liquid separator; 12, second gas-liquid separator; 13, first scrubber; 14, second scrubber; 15, first cooler; 16, second cooler; 17, oxygen storage tank; 18, hydrogen storage tank; 19, fuel cell. DETAILED DESCRIPTION

[0023] The present utility model will be further described in detail below in combination with the drawings and specific embodiments. In order to make the purpose, technical scheme and advantages of the embodiments of the present utility model clearer, the technical scheme of the embodiments of the present utility model will be clearly and completely described below in combination with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, not all the embodiments. The components of the embodiments of the present utility model described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but only represents selected embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present utility model.

[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this utility model 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. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.

[0025] Example:

[0026] As attached Figs. 1-2 As shown, an integrated wastewater treatment and electrolysis hydrogen production device for high-altitude, low-temperature areas includes a wind and solar power generation module, a wastewater treatment module, an insulation module 7, and an electrolysis module. The wind and solar power generation module includes a photovoltaic panel 1 that absorbs solar energy to generate electricity, a wind turbine 5 that utilizes wind energy, and a battery 3. The current generated by the photovoltaic panel 1 needs to be adjusted by a DC-DC inverter 2 to a voltage range suitable for the battery 3 for power storage. The AC power generated by the wind turbine 5 needs to be rectified by an AC-DC inverter 4 before being delivered to the battery 3. The battery 3 continuously supplies power to the insulation module 7, wastewater treatment module, and electrolysis module through continuous supplementation from wind and solar power, especially during the daytime. The complementary generation of wind and solar power ensures that the system can stably supply power under different weather and lighting conditions, thereby providing continuous and reliable power support for the wastewater treatment and hydrogen production processes.

[0027] The sewage treatment module includes a biochemical tank 8 and a membrane technology treatment end, wherein the membrane technology treatment end selects a membrane distillation treatment device 9. With advanced biochemical tank 8 technology and membrane distillation negative pressure technology, we can effectively purify sewage and achieve sustainable development of the environment. The core of the biochemical tank 8 technology is the AOA process, which is different from the existing AAO (anaerobic-anoxic-aerobic) process. By adjusting the spatial timing to post the anoxic zone, the internal reflux is omitted, forming an anaerobic-aerobic-anoxic biological treatment process. This process can fully absorb and fix the organic matter in the influent as internal carbon source in the anaerobic zone, significantly improving the carbon source utilization rate in the sewage and improving the TN (total nitrogen) removal efficiency. After treatment by the biochemical tank 8, the wastewater is purified and discharged through the first outlet, meeting the environmental protection standards. The water purified by the biochemical tank 8 needs to be further purified for electrolysis, and part of the water purified by the biochemical tank 8 is delivered to the membrane distillation treatment device 9 through the second outlet. Membrane distillation technology uses negative pressure principle to separate pollutants and water through semi-permeable membrane. This process not only improves the purity of water, but also effectively removes pollutants. The treated water is delivered to the electrolysis module for further treatment and use. This process not only ensures the recycling of water resources, but also provides clean water source for the PEM electrolytic cell 10 of the electrolysis module, thereby improving the overall efficiency of sewage treatment while producing clean energy.

[0028] The heat preservation module 7 is used to ensure that the biochemical tank 8 can work efficiently in a high-altitude low-temperature environment. The heat preservation module 7 can adjust the internal temperature in real time according to the change of external environment temperature, so as to keep the biochemical tank 8 running in the best temperature range. This intelligent temperature control system ensures the stability and efficiency of the biochemical treatment process, and can ensure the consistency and efficiency of sewage treatment regardless of the change of external climate. Through this design, the device can adapt to various climate conditions, improving the reliability and practicality of the system. The preferred heat preservation module 7 includes a heat preservation layer and a heating layer. The heating layer uses a thin film heater, which is arranged on the inner wall of the biological tank and is controlled by the controller 6. The battery 3 provides power; the heat preservation layer uses aerogel material, which is arranged on the outer wall of the biological tank, can avoid heat loss, and reduce the working time of the thin film heater.

[0029] The electrolysis module comprises a PEM electrolysis cell 10, which electrolyzes water purified by the membrane distillation treatment device 9 as raw material, and in order to reduce the water resistance and improve the electrolysis efficiency, NaOH or KOH electrolyte needs to be added in the water, so the electrolyzed hydrogen and oxygen will contain more alkali liquor, the oxygen treatment unit comprises a first gas-liquid separator 11, a first scrubber 13, a first cooler 15 and an oxygen storage tank 17, the oxygen produced by the oxygen outlet of the PEM electrolysis cell 10 is sequentially separated from the alkali liquor by the first gas-liquid separator 11, and then the residual alkali liquor is further separated by the first scrubber 13 to obtain pure oxygen, which is then cooled by the first cooler 15 and then delivered to the oxygen storage tank 17 for standby, when the biological pool is working, the oxygen in the oxygen storage tank 17 is delivered to the aerobic zone in the biological pool through the pipeline to provide sufficient oxygen environment required by the aerobic zone and enhance the aeration efficiency; the hydrogen treatment unit comprises a second gas-liquid separator 12, a second scrubber 14, a second cooler 16 and a hydrogen storage tank 18, the hydrogen produced by the hydrogen outlet of the PEM electrolysis cell 10 is sequentially separated from the alkali liquor by the second gas-liquid separator 12, and then the residual alkali liquor is further separated by the second scrubber 14 to obtain pure hydrogen, which is then cooled by the second cooler 16 and then delivered to the hydrogen storage tank 18 for standby, the hydrogen in the hydrogen storage tank 18 is delivered to the fuel cell 19 through the pipeline to provide clean hydrogen fuel. The fuel cell 19 is mainly used for night power supply, and also complements the storage battery 3, which is used for power supply of the thin film heater, the PEM electrolysis cell 10, the biological pool and other electric equipment. The storage battery 3 and the fuel cell 19 can provide stable power, reduce the dependence on traditional power, and reduce energy cost.

[0030] The above only describes the preferred embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, is also included in the patent protection range of the present application.

Claims

1. An integrated wastewater treatment device for high-altitude, low-temperature areas and electrolytic hydrogen production, characterized in that: The sewage treatment module comprises a biochemical tank (8) and a membrane distillation treatment device (9); the biochemical tank (8) comprises a first outlet and a second outlet; the second outlet is communicated with the membrane distillation treatment device (9) through a pipeline.

2. The device according to claim 1, wherein the device is characterized in that: The biochemical tank (8) is sequentially provided with an anaerobic zone, an aerobic zone, an anoxic zone and a sedimentation tank along the flow direction of sewage.

3. The device according to claim 2, wherein the device is characterized in that: The heat preservation module (7) comprises a heating layer and a heat preservation layer; the heat preservation layer is arranged on the outer wall of the biochemical tank (8); the heating layer is arranged on the inner wall of the biochemical tank (8); and the heating layer is a thin film heater.

4. The device according to claim 3, wherein the device is characterized in that: The electrolysis module further comprises an oxygen treatment unit and a hydrogen treatment unit; the oxygen outlet of the PEM electrolytic cell (10) is communicated with the oxygen treatment unit through a pipeline; the oxygen treatment unit delivers oxygen to the aerobic zone through a pipeline; the hydrogen outlet of the PEM electrolytic cell (10) is communicated with the hydrogen treatment unit through a pipeline; and the hydrogen treatment unit delivers hydrogen to the fuel cell (19) through a pipeline.

5. The device according to claim 4, wherein the device is characterized in that: The oxygen treatment unit comprises a first gas-liquid separator (11), a first scrubber (13), a first cooler (15) and an oxygen storage tank (17) which are sequentially communicated; and the oxygen storage tank (17) is communicated with the aerobic zone through a pipeline.

6. The device according to claim 5, characterized in that: The hydrogen treatment unit comprises a second gas-liquid separator (12), a second scrubber (14), a second cooler (16) and a hydrogen storage tank (18) which are sequentially communicated; and the hydrogen storage tank (18) is used for providing hydrogen fuel for the fuel cell (19).

7. The device according to claim 6, characterized in that: The wind-solar power generation module comprises a photovoltaic panel (1), a DC-DC inverter (2), a storage battery (3) and a controller (6) which are sequentially and electrically connected; and the controller (6) is electrically connected with the thin film heater, the membrane distillation treatment device (9) and the PEM electrolytic cell (10) respectively.

8. The device according to claim 7, characterized in that: The wind-solar power generation module further comprises a fan (5) and an AC-DC inverter (4); and the fan (5), the AC-DC inverter (4) and the storage battery (3) are sequentially and electrically connected.

9. The device according to claim 8, characterized in that: The heat preservation layer is aerogel.

10. The device according to claim 9, characterized in that it is an integrated device for sewage and hydrogen production by electrolysis in high-altitude and low-temperature areas. ​

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