CN217437990U - Sewage treatment device - Google Patents
Sewage treatment device Download PDFInfo
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- CN217437990U CN217437990U CN202221607465.XU CN202221607465U CN217437990U CN 217437990 U CN217437990 U CN 217437990U CN 202221607465 U CN202221607465 U CN 202221607465U CN 217437990 U CN217437990 U CN 217437990U
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The application relates to the field of sewage treatment, in particular to a sewage treatment device. The sewage treatment device comprises a main cylinder body, an inner cylinder body, an annular guide plate, a water inlet pipe, biological fillers, a lifting assembly, an inclined pipe group and a water outlet pipe; the annular guide plate divides an area between the outer peripheral surface of the inner cylinder and the inner peripheral surface of the main cylinder into a second partition and a guide channel, the guide channel is positioned on the inner side of the annular guide plate, and the guide channel is used for guiding water treated by the inner cylinder into the second partition; the lifting assembly is used for guiding sewage at the bottom of the inner cylinder body to flow to the top of the inner cylinder body, the inner cylinder body is divided into an anoxic zone and an aerobic zone by the lifting impeller, and the aerobic zone is filled with biological filler for treating the sewage in the inner cylinder body; the sewage treatment device has the advantages of simple structure and small floor area, is suitable for small-scale village and town sewage treatment and household sewage treatment, can reduce the operating cost, and is more convenient for system maintenance and management.
Description
Technical Field
The application relates to the field of sewage treatment, in particular to a sewage treatment device.
Background
At present, a pre-denitrification biological nitrogen removal system (A) N O process) is a widely used denitrification process at present, and belongs to an activated sludge denitrification system. Generally comprises an anoxic tank, an aerobic tank, a sedimentation tank and the like. In A N In the O system, denitrification, nitrification and BOD removal are respectively carried out in two different reaction tanks, raw sewage and return sludge simultaneously enter a denitrification tank (anoxic tank) at the head of the system, and a part of nitrified liquid which has been fully reacted in the nitrification reaction tank flows back to the denitrification reaction tank (called mixed liquid backflow or internal backflow).
A N The O process has higher removal rate on COD, BOD, SS and the like, particularly has better treatment effect on nitrogen and has good effluent quality. But the equipment is complex, the operation management requirement is high, the investment is large, the method is suitable for large sewage treatment plants (stations), and the method is not suitable for villages and towns with low capital shortage and laggard operation management level under general conditions. In addition, the internal reflux system and the external reflux system of the process generally respectively adopt a pump lifting reflux mode, and the power consumption is higher; two reaction tanks and a sedimentation tank are respectively constructed, so that the occupied area is increased.
SUMMERY OF THE UTILITY MODEL
The present application provides a sewage treatment apparatus to improve the above-mentioned problem.
The utility model discloses it is specifically such:
a sewage treatment device comprises a main cylinder body, an inner cylinder body, an annular guide plate, a water inlet pipe, biological fillers, a lifting assembly, an inclined pipe group and a water outlet pipe;
the inner cylinder body is accommodated in the main cylinder body, and the bottom of the inner cylinder body and the bottom of the main cylinder body are separated and form a first partition together; the annular guide plate is connected to the periphery of the inner cylinder and is spaced from the peripheral surface of the inner cylinder so as to divide an area between the peripheral surface of the inner cylinder and the inner peripheral surface of the main cylinder into a second partition and a guide channel, the guide channel is positioned on the inner side of the annular guide plate, and the guide channel is used for guiding sewage treated by the inner cylinder into the second partition;
the lifting assembly comprises a lifting impeller, a stirring blade and a driving motor, the lifting impeller is rotatably arranged in the inner cylinder body and is in transmission connection with the driving motor so as to guide sewage at the bottom of the inner cylinder body to flow to the top of the inner cylinder body; the lifting impeller divides the inner cylinder into an anoxic zone and an aerobic zone, the anoxic zone is positioned below the lifting impeller, the stirring sheet is positioned in the anoxic zone, and the biological filler is filled in the aerobic zone for treating sewage in the inner cylinder; the water inlet pipe is communicated with the bottom of the inner cylinder body; the water outlet pipe is connected to the upper part of the main cylinder and communicated with the second partition;
the inclined pipe group is arranged in the second partition around the axis of the inner cylinder and is positioned below the communication part of the water outlet pipe and the main cylinder; the inclined tube group is used for carrying out sedimentation clarification treatment on the effluent of the inner cylinder body, the clear water after sedimentation clarification treatment is discharged through the water outlet pipe, and the precipitated sludge enters the first subarea;
the first partition is communicated with the second partition, and the bottom of the inner cylinder body is communicated with the first partition and the second partition.
In an embodiment of the present invention, the height of the upper end of the ring-shaped guide plate is greater than the height of the inner cylinder, and the height of the upper end of the ring-shaped guide plate is identical to the height of the upper end of the main cylinder.
In an embodiment of the present invention, the sewage treatment device further comprises a water collection tank disposed at a connection position of the water outlet pipe and the main cylinder, and the water collection tank is located in the second partition; the water collecting tank is used for collecting the clear water after the sedimentation and clarification treatment of the inclined tube group and guiding the clear water into the water outlet pipe.
In an embodiment of the present invention, the sewage treatment device further comprises a water distributor disposed at the bottom of the inner cylinder.
The utility model discloses an in an embodiment, sewage treatment plant still includes the mud pipe, and the mud pipe switches on with first subregion.
In one embodiment of the utility model, the sewage treatment device further comprises an aeration disc and a gas supply component, wherein the aeration disc is arranged in the aerobic zone and is positioned below the biological filler;
the aeration disc is communicated with the air supply assembly to convey air to the aeration disc.
The utility model has the advantages that:
the sewage treatment device comprises a main cylinder body, an inner cylinder body, an annular guide plate, a water inlet pipe, biological fillers, a lifting assembly, an inclined pipe group and a water outlet pipe;
the inner cylinder body is accommodated in the main cylinder body, and the bottom of the inner cylinder body and the bottom of the main cylinder body are separated and form a first partition together; the annular guide plate is connected to the periphery of the inner cylinder and is spaced from the outer peripheral surface of the inner cylinder so as to divide an area between the outer peripheral surface of the inner cylinder and the inner peripheral surface of the main cylinder into a second partition and a guide channel, the guide channel is positioned on the inner side of the annular guide plate, and the guide channel is used for guiding sewage treated by the inner cylinder into the second partition;
the lifting assembly comprises a lifting impeller, a stirring blade and a driving motor, the lifting impeller is rotatably arranged in the inner cylinder body and is in transmission connection with the driving motor so as to guide sewage at the bottom of the inner cylinder body to flow to the top of the inner cylinder body; the lifting impeller divides the inner cylinder into an anoxic zone and an aerobic zone, the anoxic zone is positioned below the lifting impeller, the stirring sheet is positioned in the anoxic zone, and the aerobic zone is filled with biological filler for treating sewage in the inner cylinder; the water inlet pipe is communicated with the bottom of the inner cylinder body; the water outlet pipe is connected to the upper part of the main cylinder and communicated with the second partition;
the inclined pipe group is arranged in the second partition around the axis of the inner cylinder and is positioned below the communication part of the water outlet pipe and the main cylinder; the inclined tube group is used for carrying out sedimentation clarification treatment on the effluent of the inner cylinder body, the clear water after sedimentation clarification treatment is discharged through the water outlet pipe, and the precipitated sludge enters the first subarea;
the first partition is communicated with the second partition, and the bottom of the inner cylinder body is communicated with the first partition and the second partition.
In the process of sewage treatment, the sewage treatment device can realize the backflow of sewage and sludge through the conduction arrangement of the inner cylinder body and the first partition and the second partition and the lifting action of the lifting assembly, so that the stability of the effluent quality can be ensured; the sewage treatment device has a simple structure and a small floor area, is suitable for small-scale village and town sewage treatment and household sewage treatment, can reduce the operation cost, and is convenient for system maintenance and management.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic structural view of a sewage treatment apparatus provided in the present application;
fig. 2 is a sewage flow diagram of the sewage treatment apparatus provided by the present application.
Icon: 200-a sewage treatment device; 210-a main cylinder; 220-inner cylinder body; 230-an annular baffle; 240-water inlet pipe; 250-biological filler; 260-a lifting assembly; 270-a water outlet pipe; 201-a first partition; 202-a second partition; 203-a flow guide channel; 280-a water collecting tank; 290-water distributor; 310-a mud pipe; 320-oblique tube group; 261-lifting the impeller; 262-a drive motor; 204-anoxic zone; 205-an aerobic zone; 263-stirring sheet; 330-an aeration disc; 340-gas supply assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, the present embodiment provides a sewage treatment apparatus 200, which includes a main cylinder 210, an inner cylinder 220, an annular guide plate 230, a water inlet pipe 240, a biological filler 250, a lifting assembly 260, an inclined pipe group 320, and a water outlet pipe 270;
the inner cylinder 220 is accommodated in the main cylinder 210, and the bottom of the inner cylinder 220 and the bottom of the main cylinder 210 are spaced and form a first partition 201; the annular guide plate 230 is connected to the outer periphery of the inner cylinder 220 and is spaced from the outer peripheral surface of the inner cylinder 220 to divide the area between the outer peripheral surface of the inner cylinder 220 and the inner peripheral surface of the main cylinder 210 into a second partition 202 and a guide channel 203, the guide channel 203 is located on the inner side of the annular guide plate 230, and the guide channel 203 is used for guiding the water treated by the inner cylinder 220 into the second partition 202;
the lifting assembly 260 comprises a lifting impeller 261, a stirring blade 263 and a driving motor 262, wherein the lifting impeller 261 is rotatably arranged in the inner cylinder 220 and is in transmission connection with the driving motor 262 so as to guide the sewage at the bottom of the inner cylinder 220 to flow to the top of the inner cylinder 220; the lifting impeller 261 divides the inner cylinder 220 into an anoxic zone 204 and an aerobic zone 205, the anoxic zone 204 is positioned below the lifting impeller 261, the stirring blades 263 are positioned in the anoxic zone 204, and the biological filler 250 is filled in the aerobic zone 205 for treating the sewage in the inner cylinder 220; the water inlet pipe 240 is communicated with the bottom of the inner cylinder 220; the water outlet pipe 270 is connected to the upper part of the main cylinder 210 and is communicated with the second partition 202;
the inclined tube group 320 is arranged in the second partition 202 around the axis of the inner cylinder 220 and is positioned below the position where the water outlet pipe 270 is communicated with the main cylinder 210; the inclined pipe group 320 is used for performing sedimentation clarification treatment on the effluent of the inner cylinder body 220, the clear water after sedimentation clarification treatment is discharged through the water outlet pipe 270, and the sedimented sludge enters the first subarea 201;
the first partition 201 is in communication with the second partition 202, and the bottom of the inner cylinder 220 is in communication with the first partition 201 and the second partition 202.
Referring to fig. 1 and fig. 2, wherein the arrows in fig. 2 show the flow direction of the sewage in the sewage treatment device 200, the working principle of the sewage treatment device 200 is:
the sewage treatment device 200 comprises a main cylinder 210, an inner cylinder 220, an annular guide plate 230, a water inlet pipe 240, biological filler 250, a lifting assembly 260, an inclined pipe group 320 and a water outlet pipe 270; the inner cylinder 220 is accommodated in the main cylinder 210, and the bottom of the inner cylinder 220 and the bottom of the main cylinder 210 are spaced and form a first partition 201; the annular guide plate 230 is connected to the outer periphery of the inner cylinder 220 and is spaced from the outer peripheral surface of the inner cylinder 220 to divide the area between the outer peripheral surface of the inner cylinder 220 and the inner peripheral surface of the main cylinder 210 into a second partition 202 and a guide channel 203, the guide channel 203 is located on the inner side of the annular guide plate 230, and the guide channel 203 is used for guiding the water treated by the inner cylinder 220 into the second partition 202;
the lifting assembly 260 comprises a lifting impeller 261, a stirring blade 263 and a driving motor 262, wherein the lifting impeller 261 is rotatably arranged in the inner cylinder 220 and is in transmission connection with the driving motor 262 so as to guide the sewage at the bottom of the inner cylinder 220 to flow to the top of the inner cylinder 220; the lifting impeller 261 divides the inner cylinder 220 into an anoxic zone 204 and an aerobic zone 205, the anoxic zone 204 is positioned below the lifting impeller 261, the stirring blades 263 are positioned in the anoxic zone 204, and the biological filler 250 is filled in the aerobic zone 205 for treating the sewage in the inner cylinder 220; the water inlet pipe 240 is communicated with the bottom of the inner cylinder 220; the water outlet pipe 270 is connected to the upper part of the main cylinder 210 and is communicated with the second partition 202;
the inclined tube group 320 is arranged in the second partition 202 around the axis of the inner cylinder 220 and is positioned below the position where the water outlet pipe 270 is communicated with the main cylinder 210; the inclined pipe group 320 is used for performing sedimentation clarification treatment on the effluent of the inner cylinder body 220, the clear water after sedimentation clarification treatment is discharged through the water outlet pipe 270, and the sedimented sludge enters the first subarea 201; the first partition 201 is in communication with the second partition 202, and the bottom of the inner cylinder 220 is in communication with the first partition 201 and the second partition 202.
In the process of sewage treatment, the sewage treatment device 200 can realize sewage and sludge backflow through the conduction arrangement of the inner cylinder 220 and the first partition 201 and the second partition 202 and the lifting action of the lifting assembly 260, so that the stability of the effluent quality can be ensured; the sewage treatment device 200 is simple in structure, small in occupied area, suitable for small-scale village and small-scale town sewage treatment and household sewage treatment, capable of reducing operation cost and convenient in system maintenance and management.
Referring to fig. 1 and 2, the sewage treatment process of the sewage treatment apparatus 200 is as follows:
when the sewage is delivered to the bottom of the inner cylinder 220 from the water inlet pipe 240, the sewage in the inner cylinder 220 flows from bottom to top under the lifting action of the lifting assembly 260, and the lifting sewage amount of the lifting assembly 260 is higher than the sewage amount in the water inlet pipe 240;
while the sewage flows from bottom to top in the inner cylinder 220, the sewage sequentially passes through the anoxic zone 204 and the aerobic zone 205, so that the sewage can be treated, and the treated sewage is led out from the top of the inner cylinder 220 and led into the second partition 202 through the flow guide channel 203;
because the second partition 202 is communicated with the first partition 201, and the first partition 201 is positioned at the bottom of the main cylinder 210, the sewage amount entering the second partition 202 through the diversion channel 203 is higher than the sewage amount in the water inlet pipe 240, and the sewage has two opposite directions, wherein the sewage amount is designed to be settled and clarified in the inclined pipe group 260 area of the second partition 202, the treated clean water is collected by the water collecting tank 280 and then is discharged by the water outlet pipe 270, and the settled sludge is concentrated in the first partition 201 and can be discharged periodically; in addition, the sewage and the precipitated sludge higher than the designed flow rate are mixed and refluxed to the inner cylinder 220, and thus, the reflux process can realize the reflux of the sewage and the sludge.
It should be noted that, based on the above, in this embodiment, the structure of the sewage treatment apparatus 200 may adopt a modular design and a manufacturing manner, so as to reduce the manufacturing, operation and maintenance costs of the sewage treatment apparatus 200, and further form a unified standard, so as to facilitate popularization and application. And when making main barrel 210 and interior barrel 220, main barrel 210 and interior barrel 220 can adopt carbon steel anticorrosion or glass steel product, have long service life, characteristics such as area is less, because can carry out standardization, modularized design, have fast, construction cycle is short characteristics simultaneously.
Further, referring to fig. 1 and 2, in the present embodiment, when the annular flow guide plate 230 is disposed, in order to prevent water guided out from the top of the inner cylinder 220 from being directly guided into the second partition 202 and further affecting the sedimentation and clarification effects of the second partition 202, the height of the upper end of the annular flow guide plate 230 is greater than the height of the inner cylinder 220, and the height of the upper end of the annular flow guide plate 230 is the same as the height of the upper end of the main cylinder 210. From this, through such mode of setting, can avoid appearing because of the water level of interior barrel 220 is too high, and make the water in the interior barrel 220 directly get into second subregion 202 to can guarantee that the water in the interior barrel 220 gets into second subregion 202 through water conservancy diversion passageway 203, and then can play the effect of buffering through annular guide plate.
Further, referring to fig. 1 and fig. 2, in the present embodiment, the sewage treatment device 200 further includes a water collection tank 280 disposed at a connection position of the water outlet pipe 270 and the main cylinder 210, and the water collection tank 280 is located in the second partition 202. In order to allow the inner cylinder 220 to uniformly guide the water in the water inlet pipe 240, the sewage treatment apparatus 200 further includes a water distributor 290 disposed at the bottom of the inner cylinder 220. In order to discharge the sludge in the first partition 201 periodically, the sewage treatment apparatus 200 further includes a sludge discharge pipe 310, and the sludge discharge pipe 310 is in communication with the first partition 201.
When the lifting assembly 260 is arranged, the lifting assembly 260 comprises a lifting impeller 261 and a driving motor 262, wherein the lifting impeller 261 is rotatably arranged in the inner cylinder 220 and is in transmission connection with the driving motor 262; the lifting impeller 261 is used for dividing the inner cylinder 220 into an anoxic zone 204 and an aerobic zone 205, and the anoxic zone 204 is positioned below the lifting impeller 261; the aerobic zone 205 is filled with a biological filler 250. In order to agitate the wastewater in the anoxic zone 204, the lifting assembly 260 further comprises an agitating blade 263 connected to the lifting impeller 261. Therefore, by the arrangement mode, the sewage can sequentially pass through the anoxic zone 204 and the aerobic zone 205 under the lifting action, so that the sewage can be effectively treated.
Through the arrangement of the lifting assembly 260, not only can the sewage led in by the water inlet pipe 240 be lifted, but also the internal reflux and the sludge reflux of the sewage treatment device 200 can be realized;
moreover, as the lifting assembly 260 further comprises the stirring blade 263 connected with the lifting impeller 261, the effect of stirring the anoxic zone 204 can be realized through the synchronous rotation of the stirring blade 263 and the lifting impeller 261; it should be noted that, under the action of the lifting impeller 261, internal reflux and sludge reflux can be realized, the total lifting sewage amount can be 3-5 times of the designed water inlet flow, and the corresponding total reflux amount is 2-4 times of the designed water inlet flow, so as to ensure the denitrification effect; the structure arrangement can reduce the configuration of power equipment, reduce the operation energy consumption and facilitate the later operation and maintenance.
The sewage treatment device 200 further comprises an aeration disc 330 and an air supply assembly 340, wherein the aeration disc 330 is arranged in the aerobic zone 205 and is positioned below the biological filler 250; the aeration tray 330 is in communication with the air supply assembly 340 to supply air to the aeration tray 330. Air can be carried to aeration dish 330 through air supply subassembly 340 alright with the oxygen demand, the mixing and the treatment effeciency etc. of guaranteeing the sewage in aerobic zone 205, air supply subassembly 340 can adopt high-pressure vortex fan moreover to can reduce air supply subassembly 340's running noise, and improve equipment's stationarity, outside, can also reduce the maintenance degree of difficulty and patrol and examine the frequency, and then reduce the cost of maintaining.
Based on the above structural arrangement, referring to fig. 1 and fig. 2, in the present embodiment, the sewage treatment apparatus 200 includes the following treatment processes in the process of sewage treatment:
anoxic zone 204: the sewage entering the anoxic zone 204 is subjected to anoxic treatment, the sewage entering the anoxic zone 204 comprises sewage input by the water inlet pipe 240 and sewage and sludge returned by the second partition 202, wherein the sewage entering the water inlet pipe 240 uniformly enters the anoxic zone 204 through the water distributor 290; denitrifying bacteria in the anoxic zone 204 utilize a carbon source in the water inlet pipe 240 to reduce nitrate nitrogen which flows back to the anoxic zone 204 into nitrogen gas, so as to achieve the purpose of denitrification; in addition, since the anoxic zone 204 consumes a part of carbon source organic matter, it is beneficial to reduce the organic load of the subsequent aerobic zone 205.
Aerobic zone 205: the aerobic zone 205 is arranged at the upper part of the anoxic zone 204, and biological filler 250 is filled in the aerobic zone, so that mud films are symbiotic to strengthen the impact load resistance; the function of the zone is mainly to complete nitration reaction and BOD removal, and ensure that the content of organic matters in effluent meets the effluent requirement.
Flow guide passage 203: the flow guide channel 203 is positioned between the main cylinder 210 and the inner cylinder 220, and has the main function of enabling the effluent of the aerobic zone 205 to uniformly and slowly enter the second sub-zone 202, so that the sediment removal effect is ensured; meanwhile, PAC and other medicaments can be added into the flow guide channel 203 to play roles of mixing, flocculation and chemically-assisted phosphorus removal.
The second partition 202: the device is used for sedimentation and clarification, is positioned at the periphery of the inner cylinder 220 and the annular guide plate 230, is used for the reaction of water led out from the oxygen zone 205, medicament and sludge to form alum floc, and forms a suspended sludge layer below the inclined pipe, wherein the suspended sludge layer can play a role in intercepting and filtering, and the inclined pipe intercepts fine floc to ensure the clarification of the outlet water of the outlet pipe 270.
First partition 201: the first subarea 201 is positioned at the bottom of the sewage treatment device 200, the second subarea 202 is communicated with the first subarea 201, and a sludge discharge pipe 310 is arranged at the bottom of the first subarea 201 to periodically discharge sludge.
In summary, referring to fig. 1 and fig. 2, in the process of sewage treatment, the sewage treatment apparatus 200 can make sewage sequentially pass through the anoxic zone 204, the aerobic zone 205, the diversion channel 203 and the second partition 202 by the lifting action of the lifting assembly 260; finally, the water collected by the water collecting tank 280 is discharged through the water outlet pipe 270, and the whole sewage treatment process is completed.
This sewage treatment apparatus 200 has the following advantages:
the sewage biochemical treatment structure in the inner cylinder 220 adopts a vertical flow system and is integrated with the flow guide channel 203, the first partition 201 and the second partition 202 to form an integrated sewage treatment device 200, so that the occupied area is small, and the construction land can be saved;
the device can be designed in a standardized and integrated manner and has the characteristics of high production speed and short construction period;
the device adopts the high-pressure vortex fan, so that the noise is low, the equipment operates stably, basically no fault exists, and the operation and the maintenance are simple;
the device is filled with biological filler 250, and mud films are symbiotic, so that the impact load resistance and the treatment effect are enhanced;
an inclined tube settling zone is added at the upper part of the second partition 202, so that the SS removing effect is ensured;
the device adopts lifting equipment with a mechanical stirring function, can realize stirring, internal reflux and sludge reflux functions at the same time, and has the advantages of less power equipment, low operating cost and more convenient maintenance and management; the mechanical lifting equipment can realize the total reflux of 200-400%, the reflux can be regulated and controlled, the denitrification effect is obvious, and the total nitrogen and ammonia nitrogen indexes of the effluent can stably reach the first-level A standard of discharge Standard of pollutants for municipal wastewater treatment works (GB 18918-2002).
Based on the above, referring to fig. 1 and fig. 2, the present embodiment further provides a sewage treatment method, which is implemented by the sewage treatment apparatus 200, and the sewage treatment method includes:
the sewage is led in from the water inlet pipe 240, distributed uniformly by the water distributor 290 and then enters the inner cylinder 220;
the sewage in the inner cylinder 220 flows from bottom to top through the lifting assembly 260 and then sequentially passes through the anoxic zone 204 and the aerobic zone 205, so that the sewage is treated;
the water treated by the inner cylinder 220 is led out from the top of the inner cylinder 220 and led into the second partition 202 through the flow guide channel 203;
the water treated by the inner cylinder 220 is settled and clarified in the second partition 202, and the formed sludge falls into the first partition 201;
the water outlet pipe 270 leads out the water in the second partition 202;
wherein, the sewage introduced into the second partition 202 and higher than the designed sewage amount is mixed with the precipitated sludge and flows back into the inner cylinder 220.
Specifically, the detailed steps of the sewage treatment method are as follows:
the sewage is led in from the water inlet pipe 240, distributed uniformly by the water distributor and then enters the inner cylinder 220;
the sewage in the inner cylinder 220 flows from bottom to top through the lifting assembly 260 and then sequentially passes through the anoxic zone 204 and the aerobic zone 205, so that the sewage is treated;
the steps of wastewater treatment in the anoxic zone 204 include: the sewage entering the anoxic zone 204 comprises sewage input by the water inlet pipe 240 and sewage and sludge returned by the second sub-zone 202, wherein the sewage entering the water inlet pipe 240 uniformly enters the anoxic zone 204 through the water distributor 290; denitrifying bacteria in the anoxic zone 204 utilize a carbon source in the water inlet pipe 240 to reduce nitrate nitrogen which flows back to the anoxic zone 204 into nitrogen gas, so as to achieve the purpose of denitrification; in addition, because the anoxic zone 204 consumes a part of carbon source organic matters, the organic load of the subsequent aerobic zone 205 is reduced;
the steps of wastewater treatment in aerobic zone 205 include: the aerobic zone 205 is arranged at the upper part of the anoxic zone 204, biological filler 250 is filled in the aerobic zone 205, sludge membranes are symbiotic, and the function of the aerobic zone 205 for strengthening impact load resistance is mainly to complete nitration reaction and BOD removal, so that the content of organic matters in effluent meets the effluent requirement;
the water treated by the inner cylinder 220 is led out from the top of the inner cylinder 220 and led into the second partition 202 through the flow guide channel 203; when the water treated by the inner cylinder 220 flows into the diversion channel 203, the diversion channel 203 has the function of enabling the effluent of the aerobic zone 205 to uniformly and slowly enter the second sub-zone 202, so that the sediment removal effect is ensured; meanwhile, PAC and other medicaments can be added into the flow guide channel 203 to play roles of mixing, flocculation and chemically-assisted phosphorus removal;
the water treated by the inner cylinder 220 is settled and clarified in the second partition 202, and the formed sludge falls into the first partition 201; specifically, the second partition 202 is used for reacting the sewage led out from the aerobic zone 205 with the medicament and the sludge to form alum floc, and forming a suspended sludge layer below the inclined tube, wherein the suspended sludge layer can play a role in intercepting and filtering, and the inclined tube intercepts fine floc to ensure the effluent of the water outlet pipe 270 to be clear; the first partition 201 is used for collecting sludge, the first partition 201 is positioned at the bottom of the sewage treatment device 200, the second partition 202 is communicated with the first partition 201, and a sludge discharge pipe 310 is arranged at the bottom of the first partition 201 to periodically complete sludge discharge.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (6)
1. A sewage treatment device is characterized in that:
the sewage treatment device comprises a main cylinder body, an inner cylinder body, an annular guide plate, a water inlet pipe, biological fillers, a lifting assembly, an inclined pipe group and a water outlet pipe;
the inner cylinder body is accommodated in the main cylinder body, and the bottom of the inner cylinder body and the bottom of the main cylinder body are separated and form a first partition together; the annular guide plate is connected to the periphery of the inner cylinder and is spaced from the outer peripheral surface of the inner cylinder so as to divide an area between the outer peripheral surface of the inner cylinder and the inner peripheral surface of the main cylinder into a second partition and a guide channel, the guide channel is positioned on the inner side of the annular guide plate, and the guide channel is used for guiding sewage treated by the inner cylinder into the second partition;
the lifting assembly comprises a lifting impeller, a stirring blade and a driving motor, the lifting impeller is rotatably arranged in the inner cylinder body and is in transmission connection with the driving motor so as to guide sewage at the bottom of the inner cylinder body to flow to the top of the inner cylinder body; the lifting impeller divides the inner cylinder into an anoxic zone and an aerobic zone, the anoxic zone is positioned below the lifting impeller, the stirring sheet is positioned in the anoxic zone, and the biological filler is filled in the aerobic zone for treating sewage in the inner cylinder; the water inlet pipe is communicated with the bottom of the inner cylinder body; the water outlet pipe is connected to the upper part of the main cylinder and communicated with the second partition;
the inclined pipe group is arranged in the second partition around the axis of the inner cylinder and is positioned below the communication position of the water outlet pipe and the main cylinder; the inclined tube group is used for carrying out sedimentation clarification treatment on the effluent of the inner cylinder body, clear water after sedimentation clarification treatment is discharged through the water outlet pipe, and precipitated sludge enters the first subarea;
the first partition is communicated with the second partition, and the bottom of the inner cylinder body is communicated with the first partition and the second partition.
2. The sewage treatment apparatus of claim 1, wherein:
the height of the upper end of the annular guide plate is larger than that of the inner cylinder, and the height of the upper end of the annular guide plate is consistent with that of the upper end of the main cylinder.
3. The sewage treatment apparatus of claim 1, wherein:
the sewage treatment device also comprises a water collecting tank arranged at the joint of the water outlet pipe and the main cylinder body, and the water collecting tank is positioned in the second partition; the water collecting tank is used for collecting the clear water after the sedimentation and clarification treatment of the inclined tube group and guiding the clear water into the water outlet pipe.
4. The sewage treatment apparatus of claim 1, wherein:
the sewage treatment device also comprises a water distributor arranged at the bottom of the inner cylinder.
5. The sewage treatment apparatus of claim 1, wherein:
the sewage treatment device further comprises a sludge discharge pipe, and the sludge discharge pipe is communicated with the first partition.
6. The sewage treatment apparatus of claim 1, wherein:
the sewage treatment device also comprises an aeration disc and an air supply assembly, wherein the aeration disc is arranged in the aerobic zone and is positioned below the biological filler;
the aeration disc is communicated with the air supply assembly to convey air to the aeration disc.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221607465.XU CN217437990U (en) | 2022-06-17 | 2022-06-17 | Sewage treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221607465.XU CN217437990U (en) | 2022-06-17 | 2022-06-17 | Sewage treatment device |
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Effective date of registration: 20221121 Address after: Room 808, 801, floor 8, building 18, Wangjing Dongyuan seventh district, Chaoyang District, Beijing 100015 Patentee after: BEIJING ENTERPRISES WATER (CHINA) INVESTMENT Co.,Ltd. Patentee after: Beishui HUICAI (Beijing) Technology Co.,Ltd. Address before: 100102 808, room 801, 8 / F, building 18, District 7, Wangjing East Garden, Chaoyang District, Beijing Patentee before: BEIJING ENTERPRISES WATER (CHINA) INVESTMENT Co.,Ltd. |