Variable saving type integrated sewage treatment device
By introducing a permeate pump directly into the clear water tank in the wastewater treatment unit and using membrane biological reaction, the problem of water quality decline caused by water quality fluctuations was solved, and a stable improvement in water quality was achieved.
Patent Information
- Application Number
- CN202422884780.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-26
AI Technical Summary
The existing sewage treatment system is difficult to meet water quality standards when water quality fluctuates, resulting in a decline in water quality.
The system employs a variable-efficiency integrated wastewater treatment device. It directly pumps substandard wastewater into the clear water tank via a permeate pump connected between the membrane tank and the clear water tank. The wastewater is then further treated using membrane bioreactors and sedimentation tanks. The system also incorporates a backwash pump and an ultraviolet sterilization mechanism to enhance the treatment effect.
It effectively stabilizes water quality, prevents substandard wastewater from affecting the sedimentation effect of the sedimentation tank, and improves the quality of sewage treatment.
Smart Images
Figure CN223468282U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sewage treatment technical field especially relates to a variable saving type integrated sewage treatment device. BACKGROUND
[0002] China's water resources are poor, and the phenomenon of drinking water shortage is serious. Among the limited water resources, water pollution is a heavy burden on the situation of water scarcity. At present, the sewage treatment system is an important configuration for water pollution control, which commonly contains grid channel, sand trap, anoxic tank, aerobic tank, MBR membrane group, etc. It mainly separates the sundries in sewage first, then separates heavy metals and particulate matter, and removes COD through hydrolysis and acidification, removes nitrate nitrogen and BOD through denitrification. In the sewage treatment process, there are often large fluctuations in water quality, which will lead to difficulties in meeting the water quality standard requirements in the subsequent treatment process, resulting in a decline in water quality. SUMMARY
[0003] In view of the above problems, the utility model is provided to overcome the above problems or at least partially solve the above problems, and the variable saving type integrated sewage treatment device can solve the problem of decline in water quality of the existing sewage treatment system and improve the quality of sewage treatment.
[0004] Specifically, the utility model provides a variable saving type integrated sewage treatment device, characterized by comprising a filter grid for entering wastewater, an adjusting tank communicating with the water outlet of the filter grid, a biochemical system communicating with the water outlet of the adjusting tank, an MBR reaction tank and a clear water tank communicating with the biochemical system.
[0005] The MBR reaction tank comprises a membrane tank and a sedimentation tank.
[0006] The water inlet of the membrane tank communicates with the water outlet of the biochemical system; the membrane tank communicates with the sedimentation tank; the membrane tank also communicates with the clear water tank, and a water production pump is arranged on the connecting pipeline of the membrane tank and the clear water tank, and the water production pump is used to directly pump the wastewater in the membrane tank into the clear water tank when the water quality in the membrane tank fluctuates or the outlet water quality is substandard.
[0007] Optionally, a backwashing pump is further arranged between the clear water tank and the membrane tank; the backwashing pump is used to pump the wastewater in the clear water tank back into the membrane tank.
[0008] Optionally, the biochemical system comprises an anaerobic tank, an anoxic tank and an aerobic tank.
[0009] The adjusting tank, the anaerobic tank, the anoxic tank, the aerobic tank and the membrane tank are sequentially communicated through connecting pipelines.
[0010] Optionally, the communication pipeline between the membrane pool and the clean water pool comprises a backwashing pipeline and a water production pipeline;
[0011] The water production pump is arranged on the water production pipeline; the backwashing pump is arranged on the backwashing pipeline; an electromagnetic normally closed valve is arranged on the backwashing pipeline; and an electromagnetic normally open valve is arranged on the water production pipeline.
[0012] Optionally, the variable saving type integrated sewage treatment device further comprises:
[0013] An ultraviolet sterilization mechanism is in communication with the clean water pool and the sedimentation pool, respectively.
[0014] An external discharge pump is arranged on a communication pipeline between the ultraviolet sterilization mechanism and the clean water pool, and is used for pumping water in the clean water pool to the ultraviolet sterilization mechanism.
[0015] Optionally, the variable saving type integrated sewage treatment device further comprises:
[0016] A membrane backwashing chemical feeding barrel is in communication with the backwashing pipeline; the membrane backwashing chemical feeding barrel is internally provided with chemical water for cleaning membranes of the membrane pool; and an outlet of the membrane backwashing chemical feeding barrel is provided with a chemical feeding pump for pumping the chemical water into the backwashing pipeline.
[0017] Optionally, the variable saving type integrated sewage treatment device further comprises:
[0018] A phosphorus removal barrel is in communication with the MBR reaction pool.
[0019] Optionally, the water inlet grille comprises a grille channel or a basket grille.
[0020] Optionally, the anaerobic pool and the anoxic pool are in communication with a dissolved oxygen blower; and an outlet of the dissolved oxygen blower is connected with an electromagnetic valve of a control switch.
[0021] The utility model discloses a variable saving type integrated sewage treatment device, and membrane pool specifically adopts membrane biological reaction, utilizes membrane separation technology and biological treatment technology to carry out further filtration treatment to waste water.
[0022] The above and other objects, advantages and features of the present utility model will become more apparent from the following detailed description of the preferred embodiments thereof, when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0023] Some embodiments of the present utility model will now be described in detail with reference to the accompanying drawings, in which:
[0024] Figure 1 is a schematic structural diagram of the variable saving type integrated sewage treatment device according to an embodiment of the present utility model;
[0025] Figure 2 is a schematic structural diagram of the biochemical system in the variable saving type integrated sewage treatment device according to an embodiment of the present utility model; Figure 1
[0026] Figure 3 is a schematic structural diagram of the MBR reaction pool in the variable saving type integrated sewage treatment device according to an embodiment of the present utility model.
[0027] Figure 4
[0028] In the figure: 100, filter grid; 200, adjusting pool; 300, biochemical system; 310, anaerobic pool; 320, anoxic pool; 330, aerobic pool; 400, MBR reaction pool; 410, membrane pool; 420, sedimentation pool; 421, primary sedimentation pool; 422, secondary sedimentation pool; 510, backwash pipeline; 520, water production pipeline; 530, electromagnetic normally open valve; 540, electromagnetic normally closed valve; 550, backwash pump; 560, water production pump; 570, main pipeline; 600, ultraviolet sterilization mechanism; 710, membrane backwash dosing barrel; 720, phosphorus removal barrel; 800, clean water pool. DETAILED DESCRIPTION
[0029] The variable saving type integrated sewage treatment device is described below with reference to Figures 1 to 4 In the description of the present embodiment, it should be understood that the terms "first", "second" are used only for the purpose of description and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features, i.e. one or more of the features. In the description of the present embodiment, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. When a certain feature "includes or contains" a certain or certain features, unless otherwise specifically described, it indicates that other features and can further include other features.
[0030] Unless otherwise specifically defined and limited, the terms "provide", "mount", "connect", "connect", "fix", "couple" and other terms should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. Those skilled in the art should be able to understand the specific meaning of the above terms in the present embodiment according to the specific circumstances.
[0031] In addition, in the description of the present embodiment, the first feature "above" or "below" the second feature can include direct contact between the first and second features, or can include indirect contact between the first and second features through another feature between them. That is, in the description of the present embodiment, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" or "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the first feature is less than the second feature in horizontal height.
[0032] In the description of the embodiments, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0033] Figure 1 is the schematic structural diagram of the variable saving type integrated sewage treatment device, as shown in Figure 1 , and referring to Figures 2 to 4 , the utility model discloses a variable saving type integrated sewage treatment device, and the variable saving type integrated sewage treatment device includes the filter grid 100 that wastewater enters, the adjusting pool 200 that the water outlet of filter grid 100 communicates, the biochemical system 300 that the water outlet of adjusting pool 200 communicates, the MBR reaction pool 400 and clear water pool 800 that with biochemical system 300 communicate.
[0034] Among them, MBR reaction pool 400 includes membrane pool 410 and sedimentation tank 420.The water inlet of membrane pool 410 communicates with the water outlet of biochemical system 300;Membrane pool 410 communicates with sedimentation tank 420;The water outlet of sedimentation tank 420 communicates with clear water pool 800;Membrane pool 410 also communicates with clear water pool 800, and water production pump 560 is arranged on the connecting pipeline of membrane pool 410 and clear water pool 800, and water production pump 560 is used to pump wastewater in membrane pool 410 directly into clear water pool 800 when the water quality in membrane pool 410 exists fluctuation or the effluent quality is substandard.
[0035] Specifically, the filter grid 100 is the water inlet of the sewage treatment device, and the filter grid 100 is used for filtering large-particle impurities in the wastewater, so as to realize rough filtration of the wastewater. Further, the adjusting pool 200 is used for adjusting the water quality of the wastewater. Further, the biochemical system 300 adopts a secondary sewage treatment process to gradually clean and degrade harmful substances in the wastewater.
[0036] Specifically, the membrane pool 410 specifically adopts membrane biological reaction, and utilizes membrane separation technology and biological treatment technology to further filter and treat the wastewater. Further, the sedimentation tank 420 is used for sedimentation of the wastewater treated by the membrane pool 410. Further, the sedimentation tank 420 includes a primary sedimentation tank 421 and a secondary sedimentation tank 422. The wastewater is excluded outward after secondary sedimentation, and enters the next disinfection treatment.
[0037] Specifically, when the water quality in the membrane tank 410 fluctuates slightly or is within the preset standard, the water production pump 560 is in the closed state, the wastewater in the membrane tank 410 enters the sedimentation tank 420, and the wastewater after sedimentation is subjected to disinfection treatment to complete wastewater evolution. On the contrary, when the water quality in the membrane tank 410 fluctuates greatly or is not within the preset standard, the water production pump 560 is started to pump the wastewater in the membrane tank 410 directly into the clean water tank 800. The wastewater with unstable water quality or not up to the standard in the membrane tank 410 is guided into the clean water tank 800 through the water production pump 560, thereby avoiding the wastewater from entering the sedimentation tank 420 for sedimentation, and affecting the water quality of the wastewater after sedimentation in the sedimentation tank 420. Therefore, the water production pump connecting the clean water tank 800 and the membrane tank 410 can ensure the water quality of the wastewater in the subsequent sedimentation tank 420 and the like, and further improve the sewage treatment effect.
[0038] In work, the wastewater is guided into the filter grid 100, the filter grid 100 performs rough filtration treatment on the wastewater, and then the wastewater is guided into the adjusting tank 200. The wastewater is subjected to preliminary water quality adjustment in the adjusting tank 200, and then the water is guided into the biochemical system 300, and the harmful substances in the wastewater are cleaned step by step by adopting the secondary sewage treatment process in the biochemical system 300.
[0039] Then the wastewater is guided into the membrane tank 410, and the wastewater is further filtered by the membrane separation technology and the biological treatment technology. When the water quality in the membrane tank 410 fluctuates greatly or is not within the preset standard, the water production pump 560 is started to pump the wastewater in the membrane tank 410 directly into the clean water tank 800. Further, when the water quality in the membrane tank 410 fluctuates slightly or is within the preset standard, the water production pump 560 is in the closed state, the wastewater in the membrane tank 410 enters the sedimentation tank 420, and the wastewater is subjected to sedimentation filtration by the sedimentation tank 420. The wastewater after sedimentation is subjected to disinfection treatment to complete wastewater evolution.
[0040] In some embodiments of the utility model, as shown in Figure 1 and Figure 2 It is shown that the reverse washing pump 550 is further arranged between the clean water tank 800 and the membrane tank 410. The reverse washing pump 550 is used for pumping the wastewater in the clean water tank 800 back into the membrane tank 410.
[0041] Specifically, when the water quality in the membrane tank 410 fluctuates greatly or is not within the preset standard or the filtration capacity of the membrane is reduced due to the blockage of the membrane, the reverse washing pump 550 can guide the wastewater in the clean water tank 800 back into the membrane tank 410 and perform reverse washing on the membrane, thereby realizing cleaning of the membrane, so as to ensure the sewage treatment efficiency and effect in the membrane tank 410. Further, the water flow for reverse washing of the membrane is opposite to the water flow direction of the wastewater after membrane filtration.
[0042] In some embodiments of the present application, as shown in Figure 3 The biochemical system 300 includes an anaerobic tank 310, an anoxic tank 320, and an aerobic tank 330. The adjusting tank 200, the anaerobic tank 310, the anoxic tank 320, the aerobic tank 330, and the membrane tank 410 are sequentially communicated through connecting pipes.
[0043] Specifically, activated sludge is arranged in the anaerobic tank 310 and the anoxic tank 320. Further, in the anaerobic tank 310, macromolecular organic matters in the sewage are degraded and converted into organic matters that can be degraded by aerobic bacteria through hydrolysis, acidification, and methanogenesis, and phosphorus in the sewage is released by the action of phosphorus accumulating bacteria. Further, in the anoxic tank 320, the sewage is subjected to internal reflux of nitrification by nitrifying bacteria, and ammonia nitrogen, total nitrogen, and the like are removed by denitrification by denitrifying bacteria in the anoxic tank 320. Further, in the aerobic tank 330, organic matters in the sewage are converted into nitrate and nitrite by nitrification of the nitrifying bacteria in the aerobic tank 330, phosphorus accumulating bacteria in the sewage absorb phosphorus, and total phosphorus is removed by sludge discharge, and aerobic bacteria in the aerobic tank 330 further remove organic matters in the sewage.
[0044] In the present embodiment, the anaerobic tank 310 and the anoxic tank 320 are communicated with a dissolved oxygen blower, an electromagnetic valve of which is connected to a control switch, and the starting time is controlled by a PLC, thereby reducing manual operation and improving the automation level.
[0045] In some embodiments of the present application, as shown in Figure 1 and Figure 2 The communication pipe between the membrane tank 410 and the clean water tank 800 includes a backwashing pipe 510 and a water production pipe 520. A water production pump 560 is arranged on the water production pipe 520. A backwashing pump 550 is arranged on the backwashing pipe 510, and an electromagnetic normally closed valve 540 is arranged on the backwashing pipe 510, and an electromagnetic normally open valve 530 is arranged on the water production pipe 520.
[0046] Specifically, the backwashing pipe and the water production pipe 520 are independent of each other. Further, a main pipe 570 is extended outwardly from the membrane tank 410, and a three-way connection port is arranged at the outer end of the main pipe 570, thereby simplifying the layout of the pipes.
[0047] In the present embodiment, the suction stroke of the backwashing pump 550 is insufficient, and a PE backwashing barrel can be installed between the equipment to solve the problem of insufficient suction stroke, and the membrane is directly backwashed from the backwashing barrel.
[0048] In some embodiments of the present application, as shown in Figure 1As shown, the variable saving type integrated sewage treatment device further comprises an ultraviolet sterilization mechanism 600 and an external discharge pump. The ultraviolet sterilization mechanism 600 is in communication with the clean water tank 800 and the sedimentation tank 420 respectively. The external discharge pump is arranged on the communication pipeline between the ultraviolet sterilization mechanism 600 and the clean water tank 800, and is used for pumping the water in the clean water tank 800 to the ultraviolet sterilization mechanism 600.
[0049] Specifically, the ultraviolet sterilization mechanism 600 is used for performing the last step of sterilization treatment on the treated wastewater. Further, the sedimentation tank 420 and the clean water tank 800 are led outwards to the ultraviolet sterilization mechanism 600 for further sterilization treatment.
[0050] In some embodiments of the utility model, as shown in Figure 1 As shown, the variable saving type integrated sewage treatment device further comprises a membrane backwashing and dosing barrel 710, the membrane backwashing and dosing barrel 710 is in communication with the backwashing pipeline 510; the membrane backwashing and dosing barrel 710 is provided with the medicine water for cleaning the membrane of the membrane pool 410; the outlet of the membrane backwashing and dosing barrel 710 is provided with a dosing pump for pumping the medicine water into the backwashing pipeline 510.
[0051] In some embodiments of the utility model, as shown in Figure 1 As shown, the variable saving type integrated sewage treatment device further comprises a phosphorus removal barrel 720, the phosphorus removal barrel 720 is in communication with the MBR reaction tank 400.
[0052] At this point, those skilled in the art should realize that, although the plurality of exemplary embodiments of the utility model have been shown and described in detail herein, many other variants or modifications conforming to the principles of the utility model can still be directly determined or deduced according to the disclosed content of the utility model without departing from the spirit and scope of the utility model. Therefore, the scope of the utility model should be understood and recognized as covering all these other variants or modifications.
Claims
1. A variable and economical integrated sewage treatment device, characterized in that: The device comprises a filter grid for wastewater inlet, a regulating tank communicated with the filter grid outlet, a biochemical system communicated with the regulating tank outlet, an MBR reaction tank and a clean water tank communicated with the biochemical system. The MBR reaction tank comprises a membrane tank and a sedimentation tank. The water inlet of the membrane tank is communicated with the water outlet of the biochemical system; the membrane tank is communicated with the sedimentation tank; the membrane tank is also communicated with the clean water tank, and a water production pump is arranged on the connecting pipeline between the membrane tank and the clean water tank, which is used to pump the wastewater in the membrane tank into the clean water tank directly when the water quality in the membrane tank fluctuates or the outlet water quality is substandard.
2. The variable saving integrated sewage treatment device according to claim 1, wherein a backwashing pump is arranged between the clean water tank and the membrane tank, and the backwashing pump is used to pump the wastewater in the clean water tank into the membrane tank.
3. The variable saving integrated sewage treatment device according to claim 1, wherein the biochemical system comprises an anaerobic tank, an anoxic tank and an aerobic tank; and the regulating tank, the anaerobic tank, the anoxic tank, the aerobic tank and the membrane tank are sequentially communicated through connecting pipelines.
4. The variable saving integrated sewage treatment device according to claim 2, wherein the connecting pipeline between the membrane tank and the clean water tank comprises a backwashing pipeline and a water production pipeline; the water production pump is arranged on the water production pipeline; the backwashing pump is arranged on the backwashing pipeline; an electromagnetic normally closed valve is arranged on the backwashing pipeline; and an electromagnetic normally open valve is arranged on the water production pipeline. Further comprising: an ultraviolet sterilization mechanism communicated with the clean water tank and the sedimentation tank respectively; an external discharge pump arranged on the connecting pipeline between the ultraviolet sterilization mechanism and the clean water tank, which is used to pump the water in the clean water tank to the ultraviolet sterilization mechanism. Further comprising: a membrane backwashing medicine bucket communicated with the backwashing pipeline; the membrane backwashing medicine bucket is provided with medicine water for cleaning the membrane of the membrane tank; and a medicine pump is arranged at the outlet of the membrane backwashing medicine bucket, which is used to pump the medicine water into the backwashing pipeline.
5. The integrated variable saving sewage treatment device according to claim 1, wherein Further comprising: a phosphorus removal bucket communicated with the MBR reaction tank.
8. The variable saving integrated sewage treatment device according to claim 1, wherein the water inlet grid comprises a grid channel or a basket grid.
6. The integrated variable saving sewage treatment device according to claim 4, wherein 9. The variable saving integrated sewage treatment device according to claim 3, wherein the anaerobic tank and the anoxic tank are communicated with a dissolved oxygen blower; and an electromagnetic valve controlled by a switch is connected to the outlet of the dissolved oxygen blower. 7. The integrated variable saving sewage treatment device according to claim 1, wherein