A domestic sewage purification device based on biodegradation technology

Abstract

The invention relates to a domestic sewage purification device based on biodegradation technology in the field of sewage purification devices. When the domestic sewage is discharged through an outlet pipe after being treated, the heat of the domestic sewage discharged from the outlet pipe can be collected through a waste heat recovery device, and the domestic sewage connected to the inlet pipe can be used for waste heat recovery, thereby reducing the heat required for subsequent heating by an electric heating plate, and greatly reducing the energy loss in the sewage treatment process. At the same time, the domestic sewage in the sewage treatment pool can be graded and regulated, so that the pH adjustment is also gentler. Different pigments are coated on the pH control unit, and a video monitoring unit is introduced. The pH value change of the domestic sewage can be judged according to the color of the floating spherical floating shell, and the pH control unit with corresponding filling loss can be filled. At the same time, the floating spherical floating shell can be monitored in real time, and the floating of the high-grade spherical floating shell can be found in time, so that the staff can intervene manually in time.

Description

Technical Field

[0001] The present invention relates to a domestic sewage purification device, and in particular to a domestic sewage purification device based on biodegradation technology, which is applied in the field of sewage purification devices. Background Art

[0002] Biodegradable domestic sewage purification equipment is a device that uses the metabolism of microorganisms to decompose and purify pollutants in sewage. Its working principle usually includes anaerobic hydrolysis, contact oxidation, precipitation and filtration. Through the degradation of microorganisms, organic matter, ammonia nitrogen, phosphorus and other pollutants in sewage are converted into harmless or low-toxic substances, thereby achieving sewage purification.

[0003] The invention patent CN202110847917.5 specification discloses an adaptive temperature control system suitable for biodegradation wastewater treatment. The application obtains the type and quantity of microorganisms released by the microbial module through the data acquisition module, and links to obtain the appropriate activity range of the microbial species, and maximizes the activity of the microorganisms according to the intersection of the activity ranges. When there is no common intersection in the active temperature ranges of the microorganisms, it is adjusted according to the type of microorganisms, and the microbial species with the largest number of microorganisms is selected to maximize the activity of the microorganisms, thereby maximizing their activity and improving the sewage treatment speed.

[0004] When using microorganisms to treat domestic sewage, the most important factors limiting its treatment speed are temperature and pH value. In the above application, although a temperature control system is set up to maximize the activity of the microorganisms, in the actual production process, simply relying on the temperature control system to control the temperature requires a lot of energy, which is likely to increase the cost of sewage treatment and is not suitable for large-scale promotion. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that in the prior art, if you want to control the temperature simply by relying on the temperature control system, you need to consume a lot of energy, which is easy to increase the cost of sewage treatment and is not suitable for large-scale promotion.

[0006] In order to solve the above problems, the present invention provides a domestic sewage purification device based on biodegradation technology, including a sewage treatment tank, an inlet pipe and an outlet pipe are fixedly connected to the same side wall of the sewage treatment tank, the inlet pipe and the outlet pipe are close to the sewage treatment tank. The end of the side wall of the sewage treatment tank passes through the side wall of the sewage treatment tank to connect the sewage treatment tank with the outside world, a partition plate is fixedly connected to the bottom plate of the sewage treatment tank, the partition plate is located between the inlet pipe and the outlet pipe, a plurality of data detection units are fixedly connected to the side wall of the partition plate, a pair of electric heating plates are fixedly connected to the bottom of the tank of the sewage treatment tank, a waste heat recovery device is connected between the inlet pipe and the outlet pipe, the waste heat recovery device includes a pair of fixed pipes respectively matched with the inlet pipe and the outlet pipe, the upper ends of the two fixed pipes are fixedly connected with fixing parts, a connecting part is fixedly connected between the two fixing parts, and the inner walls of the two fixed pipes are fixedly connected with contact fins, and the contact fins are arc-shaped;

[0007] A control terminal is provided in the sewage treatment pool, and the control terminal signal is connected to a monitoring module and an execution module. The monitoring module includes a data detection unit, and the data detection unit includes a temperature monitoring unit and a pH monitoring unit. The execution module includes a temperature control unit and a pH control unit. The temperature control unit includes an electric heating plate and a waste heat recovery device. The pH control unit includes a spherical floating shell with a through hole. A protective layer is fixedly connected to the inner wall of the spherical floating shell, and a control ball core is placed in the protective layer.

[0008] In the above-mentioned domestic sewage purification device based on biodegradation technology, it is possible to collect the heat of domestic sewage discharged from the outlet pipe, and use the waste heat of the domestic sewage connected to the inlet pipe to reduce the heat required for subsequent electric heating plate heating, which can greatly reduce the energy loss in the sewage treatment process and regulate the pH value of domestic sewage.

[0009] As a further improvement of the present application, the outer side of the waste heat recovery device is covered with a heat preservation unit matching itself, and the heat preservation unit is made of insulating material to reduce the energy loss in the process of heat recovery of domestic sewage.

[0010] As a further improvement supplement to the present application, the insulation unit is made of high-temperature resistant elastic material, and the insulation unit as a whole has a tendency to shrink inward, which increases the fit between the waste heat recovery device and the insulation unit and improves the insulation effect.

[0011] As a further improvement of the present application, a slow-release unit is fixedly connected between the regulating ball core and the protective layer. The slow-release unit includes a plurality of three-dimensional spiral elastic fibers. Adjacent elastic fibers are overlapped together to form a three-dimensional spatial structure. The presence of the slow-release unit will form a slow-release structure in the spherical floating shell, thereby avoiding excessive changes in the local pH value when the pH regulating unit takes effect, which will not easily cause the inactivation of biodegradable microorganisms.

[0012] As a further improvement supplement to the present application, the overall density of the pH control unit is similar to that of domestic sewage, while the density of the spherical floating shell, protective layer and slow-release unit is lower than that of domestic sewage. When the pH control unit is not activated, they are suspended in the domestic sewage, which is convenient for adjusting the pH value of the domestic sewage. When the pH control unit is effective, after the control ball core is completely dissolved, it will float on the surface of the domestic sewage for easy recycling.

[0013] As a further improvement of the present application, the outer wall of the spherical floating shell is coated with a magnetic coating, and the magnetic coatings coated on the outer walls of multiple spherical floating shells are of the same level, so that the multiple pH control units repel each other, facilitating a more even distribution in domestic sewage.

[0014] As a further improvement and supplement to the present application, the regulating core in the pH control unit is divided into alkaline and acidic types, and the pH control unit is divided into two categories, acidic and alkaline, according to the acidity and alkalinity of the protective layer and the regulating core. The protective layer corresponding to the acidic regulating core dissolves when the pH of domestic sewage exceeds a preset range, and the protective layer corresponding to the alkaline regulating core dissolves when the pH of domestic sewage is lower than a preset range, which are used to automatically adjust the pH of domestic sewage to be too low and too high, respectively.

[0015] As a further improvement and supplement to the present application, multiple acidic and alkaline pH control units are divided into three levels: high, medium and low. The higher the acidity level of the pH control unit, the higher the pH value that the protective layer can tolerate; the higher the alkalinity level of the pH control unit, the lower the pH value that the protective layer can tolerate. This allows for gradient regulation of domestic sewage. When low-level acidic and alkaline pH control units are unable to regulate the pH of domestic wastewater, higher-level pH control units will take effect, making the pH regulation more gentle and less likely to cause excessive impact on the activity of microorganisms.

[0016] As a further improvement and supplement to the present application, the outer walls of spherical floating shells of different grades are coated with different colors, and the color of the outer wall of the spherical floating shell will also change accordingly according to its own acidity and alkalinity. The staff can judge the change in the pH value of domestic wastewater according to the color of the floating spherical floating shell, and fill the loss pH control unit accordingly.

[0017] As a further improvement of the present application, the monitoring module also includes a video monitoring unit, which is facing the sewage treatment pool. As the pH control unit increases in level, the color of its outer wall becomes brighter, and the floating spherical floating shell can be monitored in real time, and the floating of high-level spherical floating shells can be discovered in time, which is convenient for the staff to intervene manually in time.

[0018] In summary, in the present application, when domestic sewage is treated and discharged through the outlet pipe, the domestic sewage will take away a large amount of heat. Once these domestic sewage are discharged directly, the re-injected domestic sewage needs to be reheated by the electric heating plate to restore to the preset temperature, so a large amount of heat loss will be generated. The waste heat recovery device can collect the heat of the domestic sewage discharged from the outlet pipe, and use the waste heat of the domestic sewage connected to the inlet pipe to reduce the heat required for subsequent heating by the electric heating plate, which can greatly reduce the energy loss in the sewage treatment process.

[0019] At the same time, it can realize the graded regulation of domestic sewage in the sewage treatment pool, making the pH adjustment more gentle and not easy to cause excessive impact on the activity of microorganisms. By coating different colors of pigments on pH control units of different levels and different acidity and alkalinity, and introducing video monitoring units, on the one hand, the staff can judge the change in pH value of domestic wastewater according to the color of the floating spherical floating shells, and fill the lost pH control units accordingly. On the other hand, the floating spherical floating shells can be monitored in real time, and the floating of high-level spherical floating shells can be discovered in time, which is convenient for the staff to intervene manually in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a domestic sewage purification device according to a first embodiment of the present application;

[0021] Figure 2 A top view of a domestic sewage purification device according to a first embodiment of the present application;

[0022] Figure 3 A schematic cross-sectional structure diagram of a waste heat recovery device of a domestic sewage purification device according to a first embodiment of the present application;

[0023] Figure 4 for Figure 3 The structural diagram at A in the middle;

[0024] Figure 5 This is a schematic structural diagram of a waste heat recovery device according to a first embodiment of the present application;

[0025] Figure 6 A side view of a waste heat recovery device according to a first embodiment of the present application;

[0026] Figure 7 This is a schematic structural diagram of a heat preservation unit according to a first embodiment of the present application;

[0027] Figure 8 This is a structural schematic diagram of a control system for a domestic sewage purification device according to a first embodiment of the present application;

[0028] Fig. 9This is a schematic structural diagram of a pH control unit according to a second embodiment of the present application;

[0029] Fig.10 This is a front cross-sectional view of a pH control unit according to a second embodiment of the present application;

[0030] Description of the numbers in the figure:

[0031] 1 sewage treatment tank, 2 water inlet pipe, 3 water outlet pipe, 4 partition plate, 5 electric heating plate, 6 data detection unit, 7 waste heat recovery device, 701 fixed pipe, 702 contact fin, 703 fixing part, 704 connecting part, 8 insulation unit, 9 pH control unit, 901 spherical floating shell, 902 through hole, 903 protective layer, 904 control ball core, 905 slow release unit. DETAILED DESCRIPTION

[0032] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0033] The first implementation method:

[0034] Figure 1-7 A domestic sewage purification device based on biodegradation technology is shown, comprising a sewage treatment tank 1, an inlet pipe 2 and an outlet pipe 3 are fixedly connected to the same side wall of the sewage treatment tank 1, the inlet pipe 2 and the outlet pipe 3 are both connected to the side wall of the sewage treatment tank 1 at one end close to the sewage treatment tank 1, and the sewage treatment tank 1 is connected to the outside world, a partition plate 4 is fixedly connected to the bottom plate of the sewage treatment tank 1, the partition plate 4 is located between the inlet pipe 2 and the outlet pipe 3, a plurality of data detection units 6 are fixedly connected to the side wall of the partition plate 4, a pair of electric heating plates 5 are fixedly connected to the bottom of the tank of the sewage treatment tank 1, a waste heat recovery device 7 is connected between the inlet pipe 2 and the outlet pipe 3, the waste heat recovery device 7 comprises a pair of fixed pipes 701 respectively matched with the inlet pipe 2 and the outlet pipe 3, the upper ends of the two fixed pipes 701 are fixedly connected with a fixing portion 703, a connecting portion 704 is fixedly connected between the two fixing portions 703, and the inner walls of the two fixed pipes 701 are fixedly connected with contact fins 702, and the contact fins 702 are arc-shaped;

[0035] See also Figure 8 A control terminal is provided in the sewage treatment pool 1, and the control terminal signal is connected to a monitoring module and an execution module. The monitoring module includes a data detection unit 6, and the data detection unit 6 includes a temperature monitoring unit and a pH monitoring unit. The execution module includes a temperature control unit and a pH control unit 9, and the temperature control unit includes an electric heating plate 5 and a waste heat recovery device 7.

[0036] In particular, the connection methods between the control terminal and the monitoring module and the execution module and other electrical structures in the present application are well-known technologies to those skilled in the art, and therefore are not disclosed in detail in the present application. Those skilled in the art can make reasonable designs and connections based on actual conditions to meet the usage requirements of the present application. At the same time, water pumps are connected to the ends of the water inlet pipe 2 and the water outlet pipe 3 away from the sewage treatment tank 1, and the flow of sewage in the sewage treatment tank 1, the water inlet pipe 2 and the water outlet pipe 3 is realized by the water pump.

[0037] In addition, a screen that matches the water inlet pipe 2 and the water outlet pipe 3 is fixedly connected near one end of the sewage treatment tank 1 to prevent clogging by debris. This is a well-known technology to those skilled in the art, and those skilled in the art can make reasonable settings based on the existing technology, so it is not disclosed in detail in this application.

[0038] In the present application, domestic sewage enters the sewage treatment tank 1 from the water inlet pipe 2 and is discharged from the water outlet pipe 3. The domestic sewage is biodegraded in the sewage treatment tank 1. During the biodegradation process, since the sewage treatment tank 1 is in an open state, its heat dissipation effect is better. Therefore, the temperature of the domestic sewage in the sewage treatment tank 1 will generally only be lower than the preset temperature, and will not be higher than the preset temperature due to microbial activity. The domestic sewage parameters are detected by the data detection unit 6. During the degradation of domestic sewage, once the temperature of the domestic sewage exceeds the preset temperature, the electric heating plate 5 is started to heat the domestic sewage so that the domestic sewage is restored to the preset temperature. When the domestic sewage is discharged through the water outlet pipe 3 after treatment, the domestic sewage will take away a lot of heat. Once these domestic sewage are directly discharged, the re-injected domestic sewage needs to be reheated by the electric heating plate 5 to restore to the preset temperature, so a lot of heat loss will be generated. The waste heat recovery device 7 can collect the heat of the domestic sewage discharged from the water outlet pipe 3, and the domestic sewage connected to the water inlet pipe 2 is used for waste heat, thereby reducing the heat required for subsequent heating of the electric heating plate 5, which can greatly reduce the energy loss in the sewage treatment process.

[0039] At the same time, the pH monitoring unit and the pH regulating unit 9 can monitor and regulate the pH value of the domestic sewage in the sewage treatment tank 1, thereby keeping the pH value of the domestic sewage in the sewage treatment tank 1 at a state of high microbial activity for a long time.

[0040] See also Figure 3-4 and Figure 7 The outside of the waste heat recovery device 7 is covered with a heat preservation unit 8 that matches itself. The heat preservation unit 8 is made of insulating material to reduce the energy loss in the heat recovery process of domestic sewage. The heat preservation unit 8 is made of high-temperature resistant elastic material, and the heat preservation unit 8 has a tendency to shrink inward as a whole, which increases the fit between the waste heat recovery device 7 and the heat preservation unit 8 and increases the heat preservation effect.

[0041] The second implementation method:

[0042] Figure 9-10 The pH control unit 9 shown includes a spherical floating shell 901, a through hole 902 is drilled on the spherical floating shell 901, a protective layer 903 is fixedly connected to the inner wall of the spherical floating shell 901, and a control ball core 904 is placed in the protective layer 903, wherein the selection of the through hole 902 and the control ball core 904 is determined by the microorganisms currently subjected to biodegradation treatment and the pH value of the most suitable working environment. The through hole 902 will melt when the pH value exceeds the above range, and domestic sewage will flow into the spherical floating shell 901 and erode the control ball core 904, so that the pH value of the domestic sewage is adjusted back to the most suitable pH value for the microorganisms. At the same time, the through hole 902 and the control ball core 904 cannot affect the normal growth and reproduction of the microorganisms. The above content is a well-known technology for those skilled in the art, and those skilled in the art can select the most suitable through hole 902 and the control ball core 904 according to actual conditions, so it is not disclosed in detail in this application.

[0043] A slow-release unit 905 is fixedly connected between the regulating ball core 904 and the protective layer 903. The slow-release unit 905 includes a plurality of three-dimensional spiral elastic fibers. Adjacent elastic fibers are overlapped together to form a three-dimensional structure. The existence of the slow-release unit 905 will form a slow-release structure in the spherical floating shell 901, thereby preventing the local pH value from changing too much when the pH regulating unit 9 takes effect, which will not easily cause the inactivation of biodegradable microorganisms.

[0044] The overall density of the pH control unit 9 is similar to that of domestic sewage, while the density of the spherical floating shell 901, the protective layer 903 and the slow-release unit 905 is lower than that of domestic sewage. When the pH control unit 9 is not activated, it is suspended in the domestic sewage, which is convenient for adjusting the pH value of the domestic sewage. When the pH control unit 9 is effective, after the regulating spherical core 904 is completely dissolved, it will float on the surface of the domestic sewage for easy recycling. The outer wall of the spherical floating shell 901 is coated with a magnetic coating, and the magnetic coatings coated on the outer walls of multiple spherical floating shells 901 are of the same level, so that the multiple pH control units 9 repel each other, which is convenient for more uniform distribution in the domestic sewage.

[0045] The regulating core 904 in the pH regulating unit 9 is divided into two types: alkaline and acidic, and the pH regulating unit 9 is divided into two categories: acidic and alkaline according to the acidity and alkalinity of the protective layer 903 and the regulating core 904. The protective layer 903 corresponding to the acidic regulating core 904 dissolves when the pH of the domestic sewage exceeds a preset range, and the protective layer 903 corresponding to the alkaline regulating core 904 dissolves when the pH of the domestic sewage is lower than a preset range, which are respectively used to automatically adjust the domestic sewage to a pH that is too low and too high. Multiple acidic and alkaline pH regulating units 9 are each divided into three levels: high, medium and low. The higher the acidity level of the pH regulating unit 9, the higher the pH value that the protective layer 903 can tolerate, and the higher the alkalinity level of the pH regulating unit 9, the lower the pH value that the protective layer 903 can tolerate, so that gradient regulation of domestic sewage can be achieved. When the low-level acidic and alkaline pH regulating units 9 cannot regulate the pH of domestic wastewater, the higher-level pH regulating units 9 will take effect, making the pH regulation more gentle and less likely to cause excessive impact on the activity of microorganisms.

[0046] The outer wall of the spherical floating shell 901 of different grades is coated with different colors. The color of the outer wall of the spherical floating shell 901 will also change accordingly according to its own acidity and alkalinity. The staff can judge the pH value change of the domestic wastewater according to the color of the floating spherical floating shell 901, and fill the pH control unit 9 accordingly. Please refer to Figure 7 The monitoring module also includes a video monitoring unit, which is facing the sewage treatment pool 1. As the level of the pH control unit 9 increases, the color of its outer wall becomes brighter, and the floating spherical floating shell 901 can be monitored in real time, and the floating of the high-level spherical floating shell 901 can be discovered in time, so that the staff can intervene manually in time.

[0047] Compared with the first embodiment, this embodiment discloses the pH control unit in detail, which can realize the graded control of domestic sewage in the sewage treatment tank 1, so that the pH adjustment is also gentler and less likely to cause excessive impact on the activity of microorganisms. By coating different colors of pigments on the pH control units 9 of different levels and different acidity and alkalinity, and introducing a video monitoring unit, on the one hand, the staff can judge the pH value change of domestic sewage according to the color of the floating spherical floating shell 901, and fill the corresponding pH control unit 9 with loss. On the other hand, the floating spherical floating shell 901 can be monitored in real time, and the floating of the high-level spherical floating shell 901 can be discovered in time, which is convenient for the staff to intervene manually in time.

[0048] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A domestic sewage purification device based on biodegradation technology, comprising a sewage treatment tank (1), characterized in that: An inlet pipe (2) and an outlet pipe (3) are fixedly connected to the same side wall of the sewage treatment tank (1); the ends of the inlet pipe (2) and the outlet pipe (3) close to the sewage treatment tank (1) both penetrate the side wall of the sewage treatment tank (1) to connect the sewage treatment tank (1) with the outside world; a partition plate (4) is fixedly connected to the bottom plate of the sewage treatment tank (1); the partition plate (4) is located between the inlet pipe (2) and the outlet pipe (3); a plurality of data detection units (6) are fixedly connected to the side wall of the partition plate (4); and a plurality of data detection units (6) are fixedly connected to the bottom plate of the tank of the sewage treatment tank (1). A pair of electric heating plates (5) are fixedly connected, a waste heat recovery device (7) is connected between the water inlet pipe (2) and the water outlet pipe (3), the waste heat recovery device (7) comprises a pair of fixed pipes (701) respectively matched with the water inlet pipe (2) and the water outlet pipe (3), the upper ends of the two fixed pipes (701) are fixedly connected with a fixing portion (703), a connecting portion (704) is fixedly connected between the two fixing portions (703), and the inner walls of the two fixed pipes (701) are fixedly connected with contact fins (702), and the contact fins (702) are arc-shaped; A control terminal is provided in the sewage treatment pool (1), and the control terminal is signal-connected to a monitoring module and an execution module, the monitoring module comprises a data detection unit (6), the data detection unit (6) comprises a temperature monitoring unit and a pH monitoring unit, the execution module comprises a temperature control unit and a pH control unit (9), the temperature control unit comprises an electric heating plate (5) and a waste heat recovery device (7), the pH control unit (9) comprises a spherical floating shell (901), a through hole (902) is drilled on the spherical floating shell (901), a protective layer (903) is fixedly connected to the inner wall of the spherical floating shell (901), a control ball core (904) is placed in the protective layer (903), a slow-release unit (905) is fixedly connected between the control ball core (904) and the protective layer (903), and the slow-release unit (905) comprises a plurality of three-dimensional spiral elastic fibers, and adjacent elastic fibers are overlapped to form a three-dimensional spatial structure; The overall density of the pH control unit (9) is similar to that of domestic sewage, while the density of the spherical floating shell (901), the protective layer (903) and the slow-release unit (905) is lower than that of domestic sewage. The outer wall of the spherical floating shell (901) is coated with a magnetic coating, and the magnetic coatings coated on the outer walls of multiple spherical floating shells (901) are of the same grade. The control spherical core (904) in the pH control unit (9) is divided into two types: alkaline and acidic. The pH control unit (9) is divided into two types: acidic and alkaline according to the acidity and alkalinity of the protective layer (903) and the control spherical core (904). The protective layer (903) corresponding to the acidic control spherical core (904) is placed in the domestic sewage. The protective layer (903) corresponding to the alkaline regulating spherical core (904) dissolves when the pH value of the domestic wastewater exceeds a preset range. The protective layer (903) corresponding to the alkaline regulating spherical core (904) dissolves when the pH value of the domestic wastewater is lower than a preset range. The plurality of acidic and alkaline pH regulating units (9) are respectively divided into three levels: high, medium and low. The higher the acid level of the pH regulating unit (9), the higher the pH value that the protective layer (903) can tolerate. The higher the alkaline level of the pH regulating unit (9), the lower the pH value that the protective layer (903) can tolerate. The outer wall of the spherical floating shell (901) of different levels is coated with different colors. The color of the outer wall of the spherical floating shell (901) will also change accordingly according to its own acidity and alkalinity.

2. The domestic sewage purification device based on biodegradation technology according to claim 1 is characterized by: The outside of the waste heat recovery device (7) is coated with a heat preservation unit (8) matching the waste heat recovery device (7), and the heat preservation unit (8) is made of insulating material.

3. The domestic sewage purification device based on biodegradation technology according to claim 2 is characterized by: The heat-insulating unit (8) is made of a high-temperature-resistant elastic material, and the heat-insulating unit (8) as a whole has a tendency to shrink inwards, thereby increasing the degree of fit between the waste heat recovery device (7) and the heat-insulating unit (8).

4. The domestic sewage purification device based on biodegradation technology according to claim 1 is characterized by: The monitoring module further comprises a video monitoring unit, the video monitoring unit facing the sewage treatment pool (1), and the outer wall color of the pH control unit (9) becomes brighter as the level increases.

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