CN111285568B - Low-carbon energy-saving sewage treatment system - Google Patents
Low-carbon energy-saving sewage treatment system Download PDFInfo
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- CN111285568B CN111285568B CN202010396060.5A CN202010396060A CN111285568B CN 111285568 B CN111285568 B CN 111285568B CN 202010396060 A CN202010396060 A CN 202010396060A CN 111285568 B CN111285568 B CN 111285568B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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Abstract
The invention discloses a low-carbon energy-saving sewage treatment system, which belongs to the technical field of sewage treatment and comprises a regulating tank, an anaerobic tank, an anoxic tank, an aerobic tank, a membrane biological reaction tank, a sludge tank, a clean water tank and a clean water conveying mechanism, wherein the clean water conveying mechanism comprises a water pumping cavity, a push rod, a connecting frame, an upper sealing disc, an upper driving cylinder, a water pumping channel, a lower sealing disc, a lower driving cylinder, a sealing piston and a driving device; the lower sealing disc is movably connected to the water pumping cavity, and the lower driving cylinder is used for driving the lower sealing disc to rotate on the water pumping cavity so as to open or close the water pumping channel; the driving device is used for driving the push rod and the sealing piston to move up and down in the pumping cavity, the upper sealing disc is movably connected to the sealing piston, and the upper driving cylinder is used for driving the upper sealing disc to rotate on the sealing piston so as to open or close the central hole; one side of the upper part of the pumping cavity is provided with a water inlet channel, and the invention has the advantages of low carbon, energy saving, high sewage treatment quality, convenient back flushing and the like.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a low-carbon energy-saving sewage treatment system.
Background
Sewage treatment refers to a process of purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people.
Chinese patent with publication number CN206901993U and publication date 2018, 01, 19 discloses an integrated MBBR sewage treatment plant, which comprises an anaerobic tank, an anoxic tank, an aerobic tank and a sedimentation tank, which are connected in sequence.
The method has the disadvantages that clear water and sludge are layered in the sedimentation tank, the upper layer is clear water, and the lower layer is sludge, however, because the clear water and the sludge have certain dispersion effect in the sedimentation tank, even under a steady-state environment, the layering effect of the clear water and the sludge in the sedimentation tank is difficult to control, the clear water and the sludge are separated only by gravity sedimentation, a good layering effect cannot be obtained, the clear water often contains other impurities such as activated sludge, and the like, the sewage treatment effect is poor, and the method is not suitable for the condition of high sewage treatment quality requirement.
In view of the above, the invention provides a novel low-carbon energy-saving sewage treatment system.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a low-carbon energy-saving sewage treatment system.
In order to achieve the purpose, the invention provides the following technical scheme:
a low-carbon energy-saving sewage treatment system comprises an adjusting tank, an anaerobic tank, an anoxic tank, an aerobic tank, a membrane biological reaction tank, a sludge tank and a clean water tank, wherein the anaerobic tank, the anoxic tank, the aerobic tank, the membrane biological reaction tank and the sludge tank are sequentially communicated and arranged, a lifting pump is arranged in the adjusting tank and used for conveying sewage in the adjusting tank to the anaerobic tank, and the low-carbon energy-saving sewage treatment system also comprises a clean water conveying mechanism, wherein the clean water conveying mechanism comprises a water pumping cavity, a push rod, a connecting frame, an upper sealing disk, an upper driving cylinder, a water pumping channel, a lower sealing disk, a lower driving cylinder, a sealing piston and a driving device;
the membrane bioreactor is characterized in that an MBR membrane reactor is arranged in the membrane bioreactor tank, the lower end of the water pumping channel is communicated with the outlet of the MBR membrane reactor, the upper end of the water pumping channel is connected with the bottom of the water pumping cavity, the lower sealing disc is arranged at the bottom of the water pumping cavity and used for sealing the water pumping channel, the lower sealing disc is movably connected to the water pumping cavity, and the lower driving cylinder is used for driving the lower sealing disc to rotate on the water pumping cavity so as to open or close the water pumping channel;
the driving device is used for driving the push rod and the sealing piston to move up and down in the pumping cavity, the circumferential surface of the sealing piston is tightly attached to the inner wall of the pumping cavity, the sealing piston is fixed at the lower end of the push rod through the connecting frame, a central hole is formed in the middle of the sealing piston, the upper sealing disc is installed on the upper surface of the sealing piston and used for sealing the central hole, the upper sealing disc is movably connected to the sealing piston, and the upper driving cylinder is used for driving the upper sealing disc to rotate on the sealing piston so as to open or close the central hole;
one side of the upper part of the water pumping cavity is provided with a water inlet channel, and the water pumping cavity is connected with the clean water tank through the water inlet channel.
More preferably: the driving device comprises a rack, a connecting shaft, a gear, a supporting frame and a motor;
the motor is arranged on the support frame, the support frame is fixed above the water pumping cavity and the aerobic pool, the connecting shaft is connected to the output shaft of the motor, and the gear is fixed in the axial direction of the connecting shaft and meshed with the rack;
the lower end of the rack penetrates through the water pumping cavity and is fixed at the upper end of the push rod.
More preferably: the driving device also comprises a guide rod which is vertically arranged and fixed at the top of the water pumping cavity;
the guide rod is characterized in that a vertically arranged sliding groove is formed in one side of the guide rod, a sliding strip matched with the sliding groove is arranged on the side face of the rack, and the sliding strip is embedded in the sliding groove and is in sliding fit with the sliding groove vertically.
More preferably: the clear water conveying mechanism also comprises a support rod which is fixed on the inner wall of the water pumping cavity;
the lower driving cylinder is movably connected with the supporting rod, one side of the lower sealing disc is rotatably connected with the bottom of the water pumping cavity, and the other side of the lower sealing disc is rotatably connected with the piston rod of the lower driving cylinder.
More preferably: the upper driving cylinder is movably connected with the bottom surface of the connecting frame, one side of the upper sealing disc is rotatably connected with the upper surface of the sealing piston, and the other side of the upper sealing disc is rotatably connected with a piston rod of the upper driving cylinder.
More preferably: the clear water conveying mechanism also comprises a water pump, and the water pump is used for pumping out water in the clear water tank;
a back flushing pipe is connected to one side of the lower part of the water pumping cavity, a control valve is mounted on the back flushing pipe, and the back flushing pipe is connected with an outlet of the water pump;
when the control valve is opened, the driving device drives the sealing piston to move downwards in the pumping cavity.
More preferably: an aeration system is arranged in the aerobic tank, and comprises a microporous aerator, an aeration main pipe, aeration branch pipes, an air supply pipe, an aerator and a solar photovoltaic energy storage assembly;
the microporous aerator is arranged on the aeration branch pipes, the aeration branch pipes are arranged on the aeration main pipe, the aeration main pipe is connected with the aerator through an air supply pipe, and the aerator is connected with the solar photovoltaic energy storage component;
an embedded groove is formed in the bottom surface of the aerobic tank, and the aeration main pipe and the aeration branch pipes are installed in the embedded groove.
More preferably: the water pump is characterized in that a scouring port is formed in one end of the embedded groove, a scouring pipe is connected to the scouring port, a control valve is mounted on the scouring pipe, the inlet of the scouring pipe is connected with the water pump, and the outlet of the scouring pipe is connected with the scouring port.
More preferably: and the aeration branch pipe is provided with a connecting piece, and the connecting piece is tightly held on the upper surface of the aeration branch pipe and is fixed at the bottom in the embedded groove.
More preferably: one end of the water inlet channel is fixed on one side of the upper part of the water pumping cavity, and the other end of the water inlet channel inclines downwards and is fixed on one side of the upper part of the clean water pool.
In conclusion, the invention has the following beneficial effects: in the MBR membrane tank, sludge-water mixture is effectively separated, sludge enters the sludge tank, and clear water enters the water pumping cavity through the water pumping channel and enters the clear water tank through the water inlet channel under the action of the clear water conveying mechanism. The clear water conveying mechanism can play a role in intermittent water conveying. In order to improve the separation effect and the service life of the MBR membrane reactor, the MBR membrane reactor needs to be cleaned regularly, the upper sealing disc keeps a closed state during cleaning, the lower sealing disc is opened to communicate the water pumping channel with the water pumping cavity, then the water pump is started, and the control valve on the backwashing pipe is opened, so that clean water in the clean water tank enters the water pumping cavity through the backwashing pipe and enters the MBR membrane reactor through the water pumping channel, and the sealing piston can be properly pressed down during backwashing to improve the flushing pressure.
The aerobic tank is aerated by utilizing solar energy, so that the method is low-carbon, energy-saving and good in environmental protection. The bottom of the aerobic tank is provided with the embedded groove, and the aeration main pipe and the aeration branch pipe are arranged in the embedded groove, so that the top surface of the aeration membrane of the microporous aerator is flush with the bottom surface of the aerobic tank as much as possible, the aeration effect and the aeration efficiency are improved conveniently, and the activated sludge is settled on the bottom surface of the aerobic tank.
Drawings
FIG. 1 is a schematic structural view of an embodiment, which is mainly used for embodying the structure of a sewage treatment system;
FIG. 2 is a schematic structural diagram of an embodiment, which is mainly used for embodying the structure of a clear water conveying mechanism;
FIG. 3 is a schematic structural view of an embodiment, which is mainly used for embodying the arrangement structure of the aeration branch pipes;
FIG. 4 is a schematic top view of the embodiment, which is mainly used for showing the structure of the pre-buried groove;
fig. 5 is a schematic sectional view of an embodiment, which is mainly used to embody an installation structure of the aeration branch pipes.
In the figure, 1, a regulating reservoir; 2. an anaerobic tank; 3. an anoxic tank; 4. an aerobic tank; 5. a membrane biological reaction tank; 6. a sludge tank; 7. a clean water tank; 8. an aeration system; 81. a microporous aerator; 82. an aeration main pipe; 83. an aeration branch pipe; 84. a connecting member; 85. flushing the port; 9. a clear water conveying mechanism; 901. a water pumping cavity; 902. a push rod; 903. a connecting frame; 904. an upper sealing disc; 905. an upper driving cylinder; 906. a water pumping channel; 907. a lower sealing disc; 908. a lower driving cylinder; 909. a support bar; 910. a water pump; 911. a backwash pipe; 912. a sealing piston; 9131. a guide bar; 9132. a rack; 9133. a connecting shaft; 9134. a gear; 9135. a support frame; 10. a sludge outlet; 11. a sewage inlet; 12. a lift pump; 13. a first water delivery port; 14. a second water delivery port; 15. a third water delivery port; 16. a grid; 17. an MBR membrane reactor; 18. a sludge inlet; 19. a clear water outlet; 20. a water inlet channel; 21. and (6) pre-burying the groove.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Example (b): a low-carbon energy-saving sewage treatment system is shown in figures 1-5 and comprises a regulating tank 1, an anaerobic tank 2, an anoxic tank 3, an aerobic tank 4, a membrane biological reaction tank 5, a sludge tank 6, a clean water tank 7 and a clean water conveying mechanism 9. The anaerobic tank 2, the anoxic tank 3, the aerobic tank 4, the membrane biological reaction tank 5 and the sludge tank 6 are sequentially communicated, and the regulating tank 1 is internally provided with a lift pump 12 for conveying sewage in the regulating tank 1 to the anaerobic tank 2. Be provided with sewage inlet 11 on equalizing basin 1, sewage inlet 11 department is provided with grid 16, and the grid is used for prefilter, prevents that great solid impurity from getting into equalizing basin 1. Preferably, the anaerobic tank 2, the anoxic tank 3, the aerobic tank 4, the membrane biological reaction tank 5 and the sludge tank 6 are respectively separated by partition walls. A first water conveying port 13 is arranged at the upper part between the anaerobic tank 2 and the anoxic tank 3; a second water conveying port 14 is arranged at the lower part between the anoxic tank 3 and the aerobic tank 4; a third water delivery port 15 is arranged between the aerobic tank 4 and the membrane biological reaction tank 5, and the third water delivery port 15 is positioned at the upper part of the membrane biological reaction tank 5; a sludge inlet 18 is arranged at the lower part between the membrane biological reaction tank 5 and the sludge tank 6. The first water delivery port 13, the second water delivery port 14, the third water delivery port 15 and the sludge inlet 18 are all arranged on the partition wall. The upper bottom of the sludge pool 6 is provided with a sludge outlet 10, and the bottom of the clean water pool 7 is provided with a clean water outlet 19.
In the technical scheme, the adjusting tank 1 is mainly used for adjusting the sewage inflow rate, so that the sewage treatment system is not influenced by the high and low peak flow rates and concentration changes of sewage. The anaerobic tank 2 mainly has the functions of hydrolyzing, acidifying and methanizing organic matters by using the function of anaerobic bacteria, removing the organic matters in the sewage, improving the biodegradability of the sewage and being beneficial to subsequent aerobic treatment. The anoxic tank 3 can improve the biodegradability of sewage, and is a pretreatment of the aerobic tank 4. The aerobic tank 4 mainly has the functions of biochemical reaction of aerobic bacteria under aerobic condition, further decomposing organic matters and removing pollutants.
Referring to fig. 1 to 5, the clean water delivery mechanism 9 includes a water pumping chamber 901, a push rod 902, a connecting frame 903, an upper sealing disc 904, an upper driving cylinder 905, a water pumping channel 906, a lower sealing disc 907, a lower driving cylinder 908, a support rod 909, a water pump 910, a sealing piston 912 and a driving device. An MBR membrane reactor 17 is arranged in the membrane bioreactor tank 5, the lower end of the water pumping channel 906 is communicated with the outlet of the MBR membrane reactor 17, and the upper end of the water pumping channel is connected with the bottom of the water pumping cavity 901. The lower sealing disc 907 is installed at the bottom of the water pumping cavity 901 and used for closing the water pumping channel 906, the lower sealing disc 907 is movably connected to the water pumping cavity 901, and the lower driving cylinder 908 is used for driving the lower sealing disc 907 to rotate on the water pumping cavity 901 so as to enable the water pumping channel 906 to be opened or closed. Specifically, the lower seal disk 907 and the upper seal disk 904 are both rubber sheets or silicone sheets. The supporting rod 909 is fixed on the inner wall of the lower part of the water pumping cavity 901, the lower driving cylinder 908 is movably connected with the supporting rod 909, one side of the lower sealing disk 907 is rotatably connected with the bottom of the water pumping cavity 901, and the other side is rotatably connected with the piston rod of the lower driving cylinder 908.
Referring to fig. 1-5, the driving device is used to drive the push rod 902 and the sealing piston 912 to move up and down in the pumping chamber 901. The circumferential surface of the sealing piston 912 is tightly attached to the inner wall of the pumping cavity 901, and the sealing piston 912 is fixed at the lower end of the push rod 902 through the connecting frame 903. A connecting frame 903 is fixed to the upper surface of the sealing piston 912 and the lower end of the push rod 902. The middle part of the sealing piston 912 is provided with a central hole, and the upper sealing disc 904 is arranged on the upper surface of the sealing piston 912 and is used for sealing the central hole. The upper sealing disc 904 is movably connected to the sealing piston 912, and the upper driving cylinder 905 is used for driving the upper sealing disc 904 to rotate on the sealing piston 912 so as to open or close the central hole. An upper driving cylinder 905 is movably connected with the bottom surface of the connecting frame 903, one side of an upper sealing disc 904 is rotatably connected with the upper surface of a sealing piston 912, and the other side of the upper sealing disc 904 is rotatably connected with a piston rod of the upper driving cylinder 905. Both the upper driving cylinder 905 and the lower driving cylinder 908 are waterproof cylinders. One side of the upper part of the water pumping cavity 901 is provided with a water inlet channel 20, and the water pumping cavity 901 is connected with the clean water tank 7 through the water inlet channel 20. The water inlet channel 20 is arranged obliquely, and one end of the water inlet channel is fixed on one side of the upper part of the water pumping cavity 901, and the other end of the water inlet channel is inclined downwards and fixed on one side of the upper part of the clean water tank 7.
In the technical scheme, the MBR membrane reactor 17 can carry out solid-liquid separation efficiently, has a separation effect far better than that of a traditional sedimentation tank, has good effluent water quality, has effluent suspended matters and turbidity close to zero, can reach the recycling standard under the condition of good water quality condition, is used as recycled water, and realizes the recycling of sewage. The membrane biological reaction tank 5 is used for replacing the traditional sedimentation tank, so that a better separation effect can be obtained, and the sewage treatment effect is obviously improved.
In the membrane biological reaction tank 5, the sludge-water mixture is effectively separated, the sludge enters the sludge tank 6, and the clear water enters the water pumping cavity 901 through the water pumping channel 906 and enters the clear water tank 7 through the water inlet channel 20 under the action of the clear water conveying mechanism 9. The clean water conveying mechanism 9 can play a role of intermittent water conveying, when the push rod 902 drives the sealing piston 912 to pump up, the upper sealing disc 904 closes the central hole on the sealing piston 912, the lower driving cylinder 908 drives the lower sealing disc 907 to rotate, so that the water pumping cavity 901 is communicated with the water pumping channel 906, under the pumping action of the sealing piston 912, clean water enters the water pumping cavity 901 through the water pumping channel 906, at this time, the lower driving cylinder 908 drives the lower sealing disk 907 to rotate, so that the water pumping cavity 901 is separated from the water pumping channel 906, the upper sealing disc 904 is driven to rotate by the upper driving cylinder 905, so that the central hole is opened, then the push rod 902 drives the sealing piston 912 to press down through the driving device, at this time, the clean water below the sealing piston 912 enters the area above the sealing piston 912 through the central hole, when the liquid level reaches the water inlet channel 20, the clean water in the pumping chamber 901 will automatically enter the clean water tank 7. In the process of pumping water, the push rod 902 and the sealing piston 912 move up and down intermittently, while the upper sealing disc 904 and the lower sealing disc 907 open and close one by one, and the opening and closing time is just staggered. Thereby the effect of intermittent water delivery has been realized, the promotion water delivery is convenient for, and water pressure is less, when clear water flows into the clean water basin, can not cause splash to splash.
Referring to fig. 1 to 5, the driving device includes a guide rod 9131, a rack 9132, a connecting shaft 9133, a gear 9134, a supporting bracket 9135, and a motor. The motor is installed on support frame 9135, and support frame 9135 is fixed in the chamber of pumping 901 and good oxygen pond 4 top, and connecting axle 9133 is connected on the motor output shaft. The gear 9134 is fixed on the connecting shaft 9133 in the axial direction and is arranged in a coaxial and rotating manner, and the gear 9134 is arranged in a meshing manner with the rack 9132. The lower end of the rack 9132 penetrates through the top of the water pumping cavity 901 and is fixed at the upper end of the push rod 902, and the central shaft of the push rod 902 and the central shaft of the water pumping cavity 901 are in the same straight line. The guide rod 9131 is vertical and fixed at the top of the water pumping cavity 901, and the guide rod 9131 is provided with a chute which is vertical on one side close to the rack 9132. One side of the rack 9132 is a tooth surface, the other side of the rack is provided with a slide bar matched with the sliding groove, and the slide bar is embedded in the sliding groove and is in up-and-down sliding fit with the sliding groove.
In above-mentioned technical scheme, when the motor started, connecting axle 9133 will drive gear 9134 and rotate, because gear 9134 and rack 9132 meshing set up, and the slider on the rack 9132 inlays in the spout on guide bar 9131, therefore when the motor started, rack 9132 will drive push rod 902 and sealed piston 912 and reciprocate. Under the matching action of the gear 9134 and the rack 9132, the push rod 902 can drive the sealing piston 912 to be drawn up or pressed down, and the sealing piston 912 can be positioned at a certain position in the water pumping cavity 901.
Referring to fig. 1 to 5, a water pump 910 is used to pump out and transport water in the clean water tank 7. A back-flushing pipe 911 is connected to one side of the lower part of the water pumping cavity 901, a control valve is installed on the back-flushing pipe 911, and the back-flushing pipe 911 is connected with an outlet of the water pump 910.
In the above technical solution, in order to improve the separation effect and the service life of the MBR membrane reactor 17, the MBR membrane reactor 17 needs to be cleaned periodically, when cleaning, the upper sealing disc 904 is kept in a closed state, the lower sealing disc 907 is opened to communicate the water pumping channel 906 with the water pumping cavity 901, then the water pump 910 is started, and the control valve on the backwash pipe 911 is opened, so that the clean water in the clean water tank 7 enters the water pumping cavity 901 through the backwash pipe 911 and enters the MBR membrane reactor 17 through the water pumping channel 906. When the control valve is opened, the driving device drives the sealing piston 912 to move downwards in the water pumping cavity 901 to increase the flushing pressure. The seal piston 912 is moved downward no further than the backwash tube 911. The clear water conveying mechanism 9 not only has the effect of clear water conveying, but also can carry out back flushing on the MBR membrane reactor 17.
Referring to fig. 1-5, an aeration system 8 is provided in the aerobic tank 4. The aeration system 8 comprises a microporous aerator 81, an aeration main pipe 82, aeration branch pipes 83, an air supply pipe, an aerator and a solar photovoltaic energy storage component. Micropore aerator 81 is installed on aeration branch pipe 83, and aeration branch pipe 83 is installed on aeration house steward 82, and aeration house steward 82 is connected with the aeration machine through the air supply pipe, and the aeration machine is connected with solar photovoltaic energy storage component, and solar photovoltaic energy storage component is prior art, therefore solar photovoltaic energy storage component's specific structure and theory of operation are no longer repeated here. Two aeration main pipes 82 are arranged, and the two aeration main pipes 82 are respectively connected with two ends of the aeration branch pipes 83. The aeration branch pipes 83 are arranged in a plurality, and the aeration branch pipes 83 are arranged at equal intervals along the length direction of the aeration main pipe 82. The bottom surface of the aerobic tank 4 is provided with an embedded groove 21, and the aeration main pipe 82 and the aeration branch pipe 83 are both arranged in the embedded groove 21. The aeration branch pipe 83 is provided with a connecting piece 84, and the connecting piece 84 is tightly held on the upper surface of the aeration branch pipe 83 and fixed at the bottom in the embedded groove 21. The top surface of the aeration membrane of the microporous aerator 81 is basically flush with the bottom surface in the aerobic tank 4.
In the technical scheme, the solar energy is utilized to carry out aeration treatment on the aerobic tank 4, so that the device is low-carbon, energy-saving and good in environmental protection. The bottom surface of the conventional aerobic tank 4 is supported, so that the aeration branch pipes 83 and the microporous aerator 81 are supported at the bottom of the aerobic tank 4, and the microporous aerator 81 is arranged at a certain height from the bottom of the aerobic tank 4, thereby influencing the aeration at the bottom of the aerobic tank 4, and easily causing the deposition phenomenon due to the fact that the part below the microporous aerator 81 cannot be stirred. In order to overcome the defects, the bottom of the aerobic tank 4 is provided with the embedded groove 21, and the aeration main pipe 82 and the aeration branch pipe 83 are arranged in the embedded groove 21, so that the top surface of the aeration membrane of the microporous aerator 81 is flush with the inner bottom surface of the aerobic tank 4 as far as possible, the aeration effect and the aeration efficiency are improved, and the activated sludge is settled on the bottom surface of the aerobic tank 4. After the aeration main pipes 82 and the aeration branch pipes 83 are installed, the embedded grooves 21 may be sealed by concrete pouring or may not be sealed. If the embedded groove 21 is not sealed, in order to remove the sediments in the embedded groove 21, one end of the side wall of the embedded groove 21 is provided with a scouring port 85, a scouring pipe is connected to the scouring port 85, a control valve is installed on the scouring pipe, the inlet of the scouring pipe is connected with the outlet of the water pump 910, and the outlet of the scouring pipe is connected with the scouring port 85. If sealed, the flushing port 85 need not be provided. Under the condition that the pre-buried grooves 21 are not sealed, the later maintenance of the aeration main pipe 82 and the aeration branch pipes 83 is more convenient.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that several improvements and modifications without departing from the principle of the present invention will occur to those skilled in the art, and such improvements and modifications should also be construed as within the scope of the present invention.
Claims (9)
1. The utility model provides an energy-conserving sewage treatment system of low carbon, includes equalizing basin (1), anaerobism pond (2), oxygen deficiency pond (3), good oxygen pond (4), membrane biological reaction pond (5), sludge impoundment (6) and clean water basin (7), anaerobism pond (2), oxygen deficiency pond (3), good oxygen pond (4), membrane biological reaction pond (5) and sludge impoundment (6) communicate the setting in proper order, be equipped with elevator pump (12) in equalizing basin (1) for carry the sewage in equalizing basin (1) extremely in anaerobism pond (2), its characterized in that: the device is characterized by further comprising a clean water conveying mechanism (9), wherein the clean water conveying mechanism (9) comprises a water pumping cavity (901), a push rod (902), a connecting frame (903), an upper sealing disc (904), an upper driving cylinder (905), a water pumping channel (906), a lower sealing disc (907), a lower driving cylinder (908), a sealing piston (912) and a driving device;
an MBR membrane reactor (17) is arranged in the membrane bioreactor tank (5), the lower end of the water pumping channel (906) is communicated with the outlet of the MBR membrane reactor (17), the upper end of the water pumping channel is connected with the bottom of the water pumping cavity (901), the lower sealing disk (907) is installed at the bottom of the water pumping cavity (901) and used for sealing the water pumping channel (906), the lower sealing disk (907) is movably connected to the water pumping cavity (901), and the lower driving cylinder (908) is used for driving the lower sealing disk (907) to rotate on the water pumping cavity (901) so as to open or close the water pumping channel (906);
the driving device is used for driving the push rod (902) and the sealing piston (912) to move up and down in the water pumping cavity (901), the circumferential surface of the sealing piston (912) is tightly attached to the inner wall of the water pumping cavity (901), the sealing piston (912) is fixed at the lower end of the push rod (902) through the connecting frame (903), a central hole is formed in the middle of the sealing piston (912), the upper sealing disc (904) is installed on the upper surface of the sealing piston (912) and used for sealing the central hole, the upper sealing disc (904) is movably connected to the sealing piston (912), and the upper driving cylinder (905) is used for driving the upper sealing disc (904) to rotate on the sealing piston (912) so as to open or close the central hole;
a water inlet channel (20) is arranged on one side of the upper part of the water pumping cavity (901), and the water pumping cavity (901) is connected with the clean water tank (7) through the water inlet channel (20);
the clean water conveying mechanism (9) further comprises a water pump (910), and the water pump (910) is used for pumping out water in the clean water tank (7);
a back flushing pipe (911) is connected to one side of the lower part of the water pumping cavity (901), a control valve is installed on the back flushing pipe (911), and the back flushing pipe (911) is connected with an outlet of the water pump (910);
when the control valve is opened, the driving device drives the sealing piston (912) to move downwards in the water pumping cavity (901).
2. The low-carbon energy-saving sewage treatment system according to claim 1, wherein: the driving device comprises a rack (9132), a connecting shaft (9133), a gear (9134), a supporting frame (9135) and a motor;
the motor is installed on the supporting frame (9135), the supporting frame (9135) is fixed above the water pumping cavity (901) and the aerobic tank (4), the connecting shaft (9133) is connected to an output shaft of the motor, and the gear (9134) is fixed on the axial direction of the connecting shaft (9133) and is meshed with the rack (9132);
the lower end of the rack (9132) penetrates through the water pumping cavity (901) and is fixed at the upper end of the push rod (902).
3. The low-carbon energy-saving sewage treatment system according to claim 2, wherein: the driving device further comprises a guide rod (9131), and the guide rod (9131) is vertically arranged and fixed at the top of the water pumping cavity (901);
the guide bar (9131) one side is seted up the spout of vertical setting, be provided with on rack (9132) side with the draw runner of spout looks adaptation, the draw runner inlay in the spout and with sliding fit about the spout.
4. The low-carbon energy-saving sewage treatment system according to claim 1, wherein: the clear water conveying mechanism (9) further comprises a supporting rod (909), and the supporting rod (909) is fixed on the inner wall of the water pumping cavity (901);
the lower driving cylinder (908) is movably connected with the supporting rod (909), one side of the lower sealing disc (907) is rotatably connected with the bottom in the water pumping cavity (901), and the other side of the lower sealing disc is rotatably connected with a piston rod of the lower driving cylinder (908).
5. The low-carbon energy-saving sewage treatment system according to claim 1, wherein: go up drive actuating cylinder (905) with link (903) bottom surface swing joint, go up sealed dish (904) one side with sealed piston (912) upper surface rotates and is connected, the opposite side with the piston rod of going up drive actuating cylinder (905) rotates and is connected.
6. The low-carbon energy-saving sewage treatment system according to claim 1, wherein: an aeration system (8) is arranged in the aerobic tank (4), and the aeration system (8) comprises a microporous aerator (81), an aeration main pipe (82), aeration branch pipes (83), an air supply pipe, an aerator and a solar photovoltaic energy storage component;
the microporous aerator (81) is arranged on the aeration branch pipes (83), the aeration branch pipes (83) are arranged on the aeration main pipe (82), the aeration main pipe (82) is connected with the aerator through an air supply pipe, and the aerator is connected with the solar photovoltaic energy storage component;
an embedded groove (21) is formed in the bottom surface of the aerobic tank (4), and the aeration main pipe (82) and the aeration branch pipe (83) are installed in the embedded groove (21).
7. The low-carbon energy-saving sewage treatment system according to claim 6, wherein: one end of the embedded groove (21) is provided with a flushing opening (85), the flushing opening (85) is connected with a flushing pipe, the flushing pipe is provided with a control valve, the inlet of the flushing pipe is connected with the water pump (910), and the outlet of the flushing pipe is connected with the flushing opening (85).
8. The low-carbon energy-saving sewage treatment system according to claim 6, wherein: the aeration branch pipe (83) is provided with a connecting piece (84), and the connecting piece (84) is tightly held on the upper surface of the aeration branch pipe (83) and fixed at the bottom in the embedded groove (21).
9. The low-carbon energy-saving sewage treatment system according to claim 1, wherein: one end of the water inlet channel (20) is fixed on one side of the upper part of the water pumping cavity (901), and the other end of the water inlet channel is downwards inclined and fixed on one side of the upper part of the clean water pool (7).
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| CN202010396060.5A CN111285568B (en) | 2020-05-12 | 2020-05-12 | Low-carbon energy-saving sewage treatment system |
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| CN205368058U (en) * | 2016-01-29 | 2016-07-06 | 江西怡杉环保股份有限公司 | Membrane biological reaction device that washs structure has been improved |
| CN107285457A (en) * | 2017-08-16 | 2017-10-24 | 江阴市百顺科技有限公司 | A kind of aerating system |
| CN208249965U (en) * | 2018-03-18 | 2018-12-18 | 南京凯普德制泵有限公司 | A kind of chemical engineering sewage acid-base neutralization processing unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205368058U (en) * | 2016-01-29 | 2016-07-06 | 江西怡杉环保股份有限公司 | Membrane biological reaction device that washs structure has been improved |
| CN107285457A (en) * | 2017-08-16 | 2017-10-24 | 江阴市百顺科技有限公司 | A kind of aerating system |
| CN208249965U (en) * | 2018-03-18 | 2018-12-18 | 南京凯普德制泵有限公司 | A kind of chemical engineering sewage acid-base neutralization processing unit |
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