CN209583898U

CN209583898U - A kind of sewage disposal system

Info

Publication number: CN209583898U
Application number: CN201822152387.9U
Authority: CN
Inventors: 李�列
Original assignee: Sichuan Hongmao Environmental Protection Technology Service Co Ltd
Current assignee: Sichuan Hongmao Environmental Protection Technology Service Co Ltd
Priority date: 2018-12-19
Filing date: 2018-12-19
Publication date: 2019-11-05
Anticipated expiration: 2028-12-19

Abstract

The utility model discloses a kind of sewage disposal systems, belong to technical field of environment protection equipment, including water inlet pipe, coagulation device, two stage treatment device and tertiary treatment device, the coagulation device is connected to by the first water-supply-pipe with the two stage treatment device, the two stage treatment device is connected to by the second water-supply-pipe with the tertiary treatment device, the first water pump and the second water pump are respectively arranged on first water-supply-pipe and second water-supply-pipe, first processing unit includes filter cylinder, the periphery of the filter cylinder is provided with shell, cavity is formed between the filter cylinder and the shell, the water inlet pipe extends in the filter cylinder, multiple first through hole are provided on the periphery of the filter cylinder, at least one layer of first filter screen is provided in the cavity of first water-supply-pipe.By the setting of filter cylinder, at least one layer of first filter screen and the first water pump, sewage is made to remove the precipitable impurity such as sludge, good impurity removing effect in coagulation device.

Description

A kind of sewage disposal system

Technical field

The utility model relates to technical field of environment protection equipment, relate particularly to a kind of sewage disposal system.

Background technique

Sewage treatment refers to that the water quality discharging a certain water body to reach sewage or reusing will be gone, and handles it Process.In the modern life, especially with the increasingly intensification of urbanization, the residential density of crowd is continuously increased, then people Sanitary wastewater and some other blowdowns are also increasingly increasing in group.Meanwhile in order to be searched out in existing living environment More spaces, so urban construction also develops toward skyscraper and hypogee increasingly.But the problem of municipal pollution, especially The problem of sanitary sewage, also gets worse.

Sewage treatment can be divided into coagulation, two stage treatment and tertiary treatment according to degree for the treatment of.Coagulation is mainly The solid matter in sewage in suspended state is removed, the waste water after coagulation should not still discharge, and must also carry out two stage treatment.Two The main task of grade processing is the organic matter significantly removed in sewage in colloid and dissolved state, generally by two stage treatment Sewage can reach discharge standard.The purpose of tertiary treatment is further to remove certain special polluter, and such as fluorine removal is removed Phosphorus etc., belongs to advanced treating.

Existing sewage disposal device coagulation generally passes through setting multiple layers of filters and is filtered, and has a defect that It is easy to happen blocking, influences sewage treating efficiency, is also had using precipitation method processing, is had a defect that, can be mixed in water flow Certain precipitated impurities, poor processing effect also influence sewage treating efficiency, if level-one in addition, the sludge after precipitating is not easy to be discharged Processing is dealt with improperly, and second level below and tertiary treatment are directly affected；The equipment of present biological treatment debirs is usually to set Set anaerobic pond, aerobic tank and anoxic pond, between be connected with pipeline, valve with water pump, take up a large area, energy consumption height, not environmentally.

Utility model content

Easily occur in blocking and water flow for filter layer present in coagulation in above-mentioned existing sewage disposal system Certain precipitated impurities can be mixed with, lead to directly affect the defect of second level below and tertiary treatment, the purpose of this utility model exists In providing a kind of sewage disposal system.

The utility model specifically uses a kind of following technical scheme: sewage disposal system to achieve the goals above, including Water inlet pipe, coagulation device, two stage treatment device and tertiary treatment device, the coagulation device pass through the first water-supply-pipe It being connected to the two stage treatment device, the two stage treatment device is connected to by the second water-supply-pipe with the tertiary treatment device, The first water pump and the second water pump, the coagulation device are respectively arranged on first water-supply-pipe and second water-supply-pipe Including filter cylinder, the periphery of the filter cylinder is provided with shell, and cavity is formed between the filter cylinder and the shell, and the water inlet pipe prolongs It extends in the filter cylinder, multiple first through hole is provided on the periphery of the filter cylinder, close to the sky of first water-supply-pipe It is intracavitary to be provided at least one layer of first filter screen.

Working principle: sewage to be treated is added into filter cylinder by water inlet pipe, while starting the first water pump, sewage is logical Enter in the cavity that filter cylinder and shell are formed after cartridge filter, later again by least one layer of first filter screen, from the first water-supply-pipe Into two stage treatment device, pass through under the action of the second water pump after the biological decomposition of organic matter is completed in two stage treatment device Second water-supply-pipe enters tertiary treatment device, and deep purifying post-processing is completed in tertiary treatment case and is finished.By filter cylinder, at least The setting of one layer of first filter screen and the first water pump makes sewage remove the precipitable impurity such as sludge in coagulation device, Good impurity removing effect, because the first filter screen is vertically arranged, therefore sludge will not block the first filter screen, good impurity removing effect, after being conducive to The second level and tertiary treatment of phase solves filter layer present in coagulation in above-mentioned existing sewage disposal system and easily occurs Certain precipitated impurities can be mixed in blocking and water flow, lead to directly affect the defect of second level below and tertiary treatment.

Further, the lower part of the filter cylinder is provided with funnel shaped sludge-tank, and the bottom of the filter cylinder is provided with first Sewage draining exit is provided with shaft in the filter cylinder, and the outside of the filter cylinder, setting at the top of the shaft are extended at the top of the shaft There is first motor, be provided with scraping blade in the shaft in the filter cylinder, the bottom of the shaft is provided with scraper plate, and the scraper plate is by institute The covering of the first sewage draining exit is stated, the bottom of the sludge-tank is provided with pollutant discharge tube, the second valve is provided on the pollutant discharge tube.Filtering After water discharge afterwards, sludge stays in the bottom of filter cylinder and the first filter screen, starts first motor and shaft is driven to rotate, shaft Rotation makes scraper plate and the first sewage draining exit be staggered, and sludge is flow in sludge-tank under the effect of gravity from the first sewage draining exit, and scraper plate also rises The effect that sludge prevents sewage draining exit from blocking is scraped, scraping blade in the sludge scraping to filter cylinder adhered on filter cylinder inner wall, will prevent filter cylinder stifled Plug.First sewage draining exit of filter cylinder bottom is at least 1, preferably 2, and the quantity of scraper plate is identical as the first sewage draining exit, and scrapes Plate can completely cover the first sewage draining exit.

Further, the lower part side of each first filter screen is provided with sewage pipe, is arranged on the sewage pipe There is the first valve, the sewage pipe is located in the sludge-tank.For the sludge of the first filtering sieve bottom to be discharged, the first mistake is prevented Filter net jam, filter effect are more preferable.

Further, setting is there are two support plate in the two stage treatment device, and the support plate is by the two stage treatment Device is separated into the anoxic chamber of the anaerobic cavity on top, the aerobic cavity at middle part and lower part, is provided in each support plate more A second through-hole, the lower part of each support plate are provided with pulling plate, are provided with and communicate with the second through-hole or wrong on the pulling plate The third through-hole opened, each pulling plate extend to the outside of the two stage treatment device, on the outside of the two stage treatment device The pulling plate end is provided with the second motor, and oxygen supply mechanism is provided in the aerobic cavity, is arranged on the side wall of the aerobic cavity There is the first vent window, the top of the support plate is provided with the second filter screen in the aerobic cavity, on the side wall of the anoxic chamber Portion is provided with the second vent window, and cover is provided on the outside of the vent window, and the cover bottom is provided with lift drive mechanism. Start the second motor, third through-hole is made to be staggered completely with the second through-hole, the water come out from the first water-supply-pipe is introduced into anaerobic cavity, detests Oxygen is intracavitary a polyP bacteria, and under anaerobic condition, phosphorus is released under the action of polyP bacteria, later the second motor driven anaerobic cavity bottom Pulling plate so that the second through-hole and third through-hole is staggered, the water in anaerobic cavity is flow in aerobic cavity under the effect of gravity, in aerator For structure to aerobic intracavitary offer oxygen, polyP bacteria absorbs phosphorus under aerobic state, and the second mistake is trapped in the form of excess sludge On strainer, while organic nitrogen by nitrobacteria resolves into ammonia nitrogen in aerobic cavity, and ammonia nitrogen is further converted into nitrate nitrogen, Zhi Houhao The intracavitary water of oxygen enters anoxic chamber under the effect of gravity, and under anoxic conditions, nitrate nitrogen is reduced into nitrogen by denitrifying bacteria and overflows Out, to achieve the purpose that denitrogenation；First vent window plays a part of to divulge information and balance in aerobic cavity to divulge information with ambient pressure, second Window and cover and driving mechanism co-manufactured anaerobic environment；Pass through setting for anaerobic cavity from top to bottom, aerobic cavity and anoxic chamber It sets, so that the water for completing top process is directly entered lower part processing under the effect of gravity, occupation area of equipment is small, reduces making for pump With energy conservation and environmental protection.

Further, the oxygen supply mechanism includes oxygen supply case, and the oxygen supply case is connected by oxygen supplying tube and the aerobic cavity It is logical, multiple apertures, the oxygen supplying tube on the outside of the two stage treatment device are provided on the oxygen supplying tube in the aerobic cavity On be provided with blower and the 6th valve.Open the 6th valve, under fan action, will supply oxygen the oxygen in case by oxygen supplying tube and Aperture inputs aerobic cavity, intracavitary provides oxygen to be aerobic.

Further, the lifting drive includes being located at the telescopic rod of the cover bottom and stretching positioned at described The third motor of contracting bar bottom.Third motor driven telescopic rod stretches upward or downward, make cover cover the second vent window or from The second vent window is opened, enable air to enter or does not enter anoxic chamber, to manufacture anaerobic environment.

Further, the third motor bottom is provided with bracket.Bracket plays a supportive role to third motor.

Further, the side of second filter screen is provided with the second sewage draining exit.Second sewage draining exit is surplus for being discharged Remaining sludge.

Further, rabbling mechanism, the top setting of the tertiary treatment device are provided in the tertiary treatment device There is dosing mouth, the bottom of the tertiary treatment device is provided with outlet pipe, the 5th valve is provided on the outlet pipe.From dosing Sodium hypochlorite is added in mouth, carries out sterilizing to water body under the stirring of rabbling mechanism, is discharged later from outlet pipe.

Further, the rabbling mechanism includes stirring rod and the stirring blade on the stirring rod, described to stir The top outer for extending to the tertiary treatment device at the top of bar is mixed, the 4th motor is provided at the top of the stirring rod.The The rotation of four motor driven stirring rods, stirring rod drive stirring blade to stir water body, so that sodium hypochlorite is come into full contact with water body, disappear Toxic effect fruit is good.

The beneficial effects of the utility model are as follows: (1) passing through filter cylinder, at least one layer of first filter screen and the first water pump Setting, makes sewage remove the precipitable impurity such as sludge, good impurity removing effect, because the first filter screen is vertically set in coagulation device It sets, therefore sludge will not block the first filter screen, good impurity removing effect is conducive to the second level and tertiary treatment in later period；(2) filtered After water discharge, sludge stays in the bottom of filter cylinder and the first filter screen, starts first motor and shaft is driven to rotate, shaft rotation Scraper plate and sewage draining exit is set to be staggered, sludge is flow in sludge-tank under the effect of gravity from sewage draining exit, and scraper plate, which also rises, to be scraped sludge and prevent The effect of sewage draining exit blocking, scraping blade prevent filter cylinder from blocking in the sludge scraping to filter cylinder adhered on filter cylinder inner wall；(3) sewage pipe For the sludge of the first filtering sieve bottom to be discharged, prevent the first filter screen from blocking, filter effect is more preferable；(4) by from top to bottom Anaerobic cavity, aerobic cavity and anoxic chamber setting, make complete top process water be directly entered under the effect of gravity lower part processing, Occupation area of equipment is small, reduces the use of pump, energy conservation and environmental protection；(5) sodium hypochlorite is added from dosing mouth, in rabbling mechanism Sterilizing is carried out to water body under stirring, is discharged later from outlet pipe.

Detailed description of the invention

Fig. 1 is a kind of structure chart of herein described sewage disposal system；

Fig. 2 is the transverse sectional view of filter cylinder described in Fig. 1.

Appended drawing reference: 1- coagulation device, 2- two stage treatment device, 3- tertiary treatment device, the first water-supply-pipe of 4-, 5- Second water-supply-pipe, 6- third valve, the first water pump of 7-, the 4th valve of 8-, the second water pump of 9-, 10- filter cylinder, 11- shell, 12- One through-hole, 13- shaft, 14- first motor, 15- scraper plate, 16- scraping blade, the first filter screen of 17-, 18- sewage pipe, the first valve of 19- Door, 20- anaerobic cavity, 21- aerobic cavity, 22- anoxic chamber, 23- pulling plate, the second motor of 24-, 25- support plate, 26- third through-hole, The first vent window of 27-, 28- oxygen supply case, 29- oxygen supplying tube, 30- blower, the 6th valve of 31-, 32- aperture, the second filter screen of 33-, The second sewage draining exit of 34-, the second vent window of 35-, 36- cover, 37- telescopic rod, 38- third motor, 39- bracket, 40- stirring rod, The 4th motor of 41-, 42- stirring blade, 43- outlet pipe, the 5th valve of 44-, 45- water inlet pipe, 46- sludge-tank, 47- pollutant discharge tube, The second valve of 48-, the second through-hole of 49-, the first sewage draining exit of 50-, 51- dosing mouth.

Specific embodiment

In order to which those skilled in the art better understand the utility model, with reference to the accompanying drawing with following embodiment to this Utility model is described in further detail.

Embodiment 1

As shown in Figure 1, a kind of sewage disposal system, including water inlet pipe 45, coagulation device 1, two stage treatment device 2 and Tertiary treatment device 3, the coagulation device 1 are connected to by the first water-supply-pipe 4 with the two stage treatment device 2, and described two Grade processing unit 2 is connected to by the second water-supply-pipe 5 with the tertiary treatment device 3, first water-supply-pipe 4 and described second defeated The first water pump 7 and the second water pump 9 are respectively arranged on water pipe 5, the coagulation device 1 includes filter cylinder 10, the filter cylinder 10 Periphery be provided with shell 11, form cavity between the filter cylinder 10 and the shell 11, the water inlet pipe 45 extends to described In filter cylinder 10, multiple first through hole 12 are provided on the periphery of the filter cylinder 10, close to the sky of first water-supply-pipe 4 It is intracavitary to be provided at least one layer of first filter screen 17.

Working principle: sewage to be treated being added into filter cylinder 10 by water inlet pipe 45, while starting the first water pump 7, Sewage enters in the cavity that filter cylinder 10 and shell 11 are formed after passing through filter cylinder 10, passes through at least one layer of first filter screen again later 17, enter two stage treatment device 2 from the first water-supply-pipe 4, is completed in two stage treatment device 2 after the biological decomposition of organic matter the Tertiary treatment device 3 is entered by the second water-supply-pipe 5 under the action of two water pumps 9, after completing deep purifying in tertiary treatment case It is disposed.By the setting of filter cylinder 10, at least one layer of first filter screen 17 and the first water pump 7, make sewage in coagulation The precipitable impurity such as sludge are removed in device 1, good impurity removing effect, because the first filter screen 17 is vertically arranged, therefore sludge will not block First filter screen 17, good impurity removing effect are conducive to the second level and tertiary treatment in later period, solve above-mentioned existing sewage treatment system Filter layer present in coagulation easily occurs that certain precipitated impurities can be mixed in blocking and water flow in system, causes to directly affect Second level and the defect of tertiary treatment below.

It is provided with third valve 6 on first water-supply-pipe 4, is provided with the 4th valve 8 on the second water-supply-pipe 5.

Embodiment 2

Based on embodiment 1, as shown in Figs. 1-2, the lower part of the filter cylinder 10 is provided with funnel shaped sludge-tank 46, the filter The bottom of cylinder 10 is provided with the first sewage draining exit 50, and shaft 13 is provided in the filter cylinder 10, extends to institute at the top of the shaft 13 The outside of filter cylinder 10 is stated, first motor 14 is provided at the top of the shaft 13, is provided with and scrapes in the shaft 13 in the filter cylinder 10 Piece 16, the bottom of the shaft 13 are provided with scraper plate 15, and the scraper plate 15 covers first sewage draining exit 50, the sludge-tank Bottom be provided with pollutant discharge tube 47, the second valve 48 is provided on the pollutant discharge tube 47.

After filtered water discharge, sludge stays in the bottom of filter cylinder 10 and the first filter screen 17, starts first motor 14 And shaft 13 is driven to rotate, the rotation of shaft 13 makes scraper plate 15 and the first sewage draining exit 50 be staggered, and sludge is from the first sewage draining exit 50 in weight Downstream in sludge-tank 46, scraper plate 15, which also plays a part of to scrape sludge, prevents sewage draining exit from blocking for power effect, and scraping blade 16 is by filter cylinder 10 In the sludge scraping adhered on inner wall to filter cylinder 10, prevent filter cylinder 10 from blocking.

First sewage draining exit 50 of 10 bottom of filter cylinder is at least 1, and preferably 2, the quantity of scraper plate 15 and the first blowdown Mouth 50 is identical, and scraper plate 15 can completely cover the first sewage draining exit 50.

Embodiment 3

Based on embodiment 1, as shown in Figure 1, the lower part side of each first filter screen 17 is provided with sewage pipe 18, institute It states and is provided with the first valve 19 on sewage pipe 18, the sewage pipe 18 is located in the sludge-tank 46.

For the sludge of 17 bottom of the first filter screen to be discharged, prevent the first filter screen 17 from blocking, filter effect is more preferable.

Embodiment 4

Based on embodiment 1, as shown in Figure 1, there are two support plate 25, the supports for setting in the two stage treatment device 2 The two stage treatment device 2 is separated into the anoxic chamber 22 of the anaerobic cavity 20 on top, the aerobic cavity 21 at middle part and lower part by plate 25, often Multiple second through-holes 49 are provided in a support plate 25, the lower part of each support plate 25 is provided with pulling plate 23, institute The third through-hole 26 for being provided on pulling plate 23 and communicating or be staggered with the second through-hole 49 is stated, each pulling plate 23 extends to described two 23 end of the pulling plate in the outside of grade processing unit 2,2 outside of two stage treatment device is provided with the second motor 24, described It is provided with oxygen supply mechanism in aerobic cavity 21, the first vent window 27, the aerobic cavity 21 are provided on the side wall of the aerobic cavity 21 The top of the interior support plate 25 is provided with the second filter screen 33, and the side wall upper part of the anoxic chamber 22 is provided with the second vent window 35, cover 36 is provided on the outside of the vent window, and 36 bottom of cover is provided with lift drive mechanism.

Start the second motor 24, third through-hole 26 is made to be staggered completely with the second through-hole 49, the water come out from the first water-supply-pipe 4 It is introduced into anaerobic cavity 20, there is polyP bacteria in anaerobic cavity 20, under anaerobic condition, phosphorus is released under the action of polyP bacteria, Zhi Hou The pulling plate 23 of two motors 24 driving, 20 bottom of anaerobic cavity makes the second through-hole 49 and third through-hole 26 be staggered, the water in anaerobic cavity 20 It is flow in aerobic cavity 21 under the effect of gravity, becomes better in oxygen supply mechanism and provide oxygen in oxygen chamber 21, the polyP bacteria under aerobic state Phosphorus is absorbed, is trapped in the form of excess sludge on the second filter screen 33, while organic nitrogen is thin by nitrification in aerobic cavity 21 Bacterium resolves into ammonia nitrogen, and ammonia nitrogen is further converted into nitrate nitrogen, and the water in aerobic cavity 21 enters anoxic chamber under the effect of gravity later 22, under anoxic conditions, nitrate nitrogen is reduced into nitrogen by denitrifying bacteria and overflows, to achieve the purpose that denitrogenation；First ventilation Window 27 plays a part of total with ambient pressure, the second vent window 35 and cover 36 and driving mechanism in ventilation and balance aerobic cavity 21 With manufacture anaerobic environment；By the setting of anaerobic cavity 20, aerobic cavity 21 and anoxic chamber 22 from top to bottom, make to complete top process Water be directly entered under the effect of gravity lower part processing, occupation area of equipment is small, reduces the use of pump, energy conservation and environmental protection.

Embodiment 5

Based on embodiment 1, as shown in Figure 1, the oxygen supply mechanism includes oxygen supply case 28, the oxygen supply case 28 passes through oxygen supplying tube 29 are connected to the aerobic cavity 21, and multiple apertures 32, the second level are provided on the oxygen supplying tube 29 in the aerobic cavity 21 Blower 30 and the 6th valve 31 are provided on the oxygen supplying tube 29 in 2 outside of processing unit.

The 6th valve 31 is opened, under the effect of blower 30, the oxygen in case 28 will be supplied oxygen and pass through oxygen supplying tube 29 and aperture 32 Aerobic cavity 21 is inputted, to provide oxygen in aerobic cavity 21.

Embodiment 6

Based on embodiment 1, as shown in Figure 1, the lifting drive includes the telescopic rod positioned at 36 bottom of cover 37 and the third motor 38 positioned at 37 bottom of telescopic rod.

Third motor 38 drives telescopic rod 37 to stretch upward or downward, so that cover 36 is covered the second vent window 35 or leaves the Two vent windows 35 enable air to enter or do not enter anoxic chamber 22, to manufacture anaerobic environment.

Embodiment 7

Based on embodiment 1, as shown in Figure 1,38 bottom of third motor is provided with bracket 39.

Bracket 39 plays a supportive role to third motor 38.

Embodiment 8

Based on embodiment 1, as shown in Figure 1, the side of second filter screen 33 is provided with the second sewage draining exit 34.

Second sewage draining exit 34 is for being discharged remaining sludge.

Embodiment 9

Based on embodiment 1, as shown in Figure 1, rabbling mechanism is provided in the tertiary treatment device 3, the tertiary treatment The top of device 3 is provided with dosing mouth 51, and the bottom of the tertiary treatment device 3 is provided with outlet pipe 43, the outlet pipe 43 On be provided with the 5th valve 44.

Sodium hypochlorite is added from dosing mouth 51, sterilizing is carried out to water body under the stirring of rabbling mechanism, later from out Water pipe 43 is discharged.

Embodiment 10

Based on embodiment 1, as shown in Figure 1, the rabbling mechanism includes stirring rod 40 and is located on the stirring rod 40 Stirring blade 42, the top of the stirring rod 40 extends to the top outer of the tertiary treatment device 3, the stirring rod 40 Top be provided with the 4th motor 41.

4th motor 41 drives stirring rod 40 to rotate, and stirring rod 40 drives stirring blade 42 to stir water body, makes sodium hypochlorite It can be come into full contact with water body, Disinfection Effect is good.

Technical staff in the field should be appreciated that first motor 14 described in this programme, the second motor 24, third motor 38, the 4th motor 41, the first water pump 7 and the second water pump 9 belong to the prior art and can be purchased on the market according to specific requirements arrive The product of different model and specification, such as in the utility model, first motor, the second motor, third motor and the 4th motor Model is Y-180L-8, and the model of the first water pump and the second water pump is WNY600.

The above are the main feature of this programme and its advantages, It should be understood by those skilled in the art that this programme is not It is restricted to the described embodiments, the above embodiments and description only describe the principles of this programme, are not departing from this Under the premise of scheme spirit and scope, this programme be will also have various changes and improvements, these changes and improvements both fall within requirement and protect In the scope of the invention of shield, this programme is claimed range and is defined by the appending claims and its equivalent thereof.

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to dismantling connection, or It is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate media's letter can also be passed through It is situated between and is connected, can be the connection inside two elements.It for the ordinary skill in the art, can be as the case may be Understand the concrete meaning of above-mentioned term in the present invention.

Claims

1. at a kind of sewage disposal system, including water inlet pipe (45), coagulation device (1), two stage treatment device (2) and three-level It manages device (3), which is characterized in that the coagulation device (1) passes through the first water-supply-pipe (4) and the two stage treatment device (2) it being connected to, the two stage treatment device (2) is connected to by the second water-supply-pipe (5) with the tertiary treatment device (3), and described the The first water pump (7) and the second water pump (9) are respectively arranged on one water-supply-pipe (4) and second water-supply-pipe (5), at the level-one Managing device (1) includes filter cylinder (10), and the periphery of the filter cylinder (10) is provided with shell (11), the filter cylinder (10) and the shell (11) cavity is formed between, the water inlet pipe (45) extends in the filter cylinder (10), is arranged on the periphery of the filter cylinder (10) There are multiple first through hole (12), at least one layer of first filter screen is provided in the cavity of first water-supply-pipe (4) (17)。

2. a kind of sewage disposal system according to claim 1, which is characterized in that the lower part of the filter cylinder (10) is provided with The bottom of funnel shaped sludge-tank (46), the filter cylinder (10) is provided with the first sewage draining exit (50), setting in the filter cylinder (10) Have shaft (13), the outside of the filter cylinder (10) is extended at the top of the shaft (13), the is provided at the top of the shaft (13) One motor (14) is provided with scraping blade (16) in the shaft (13) in the filter cylinder (10), and the bottom of the shaft (13) is provided with Scraper plate (15), the scraper plate (15) cover first sewage draining exit (50), and the bottom of the sludge-tank (46) is provided with blowdown Cylinder (47) is provided with the second valve (48) on the pollutant discharge tube (47).

3. a kind of sewage disposal system according to claim 2, which is characterized in that the lower part of each first filter screen (17) Side is provided with sewage pipe (18), is provided with the first valve (19) on the sewage pipe (18), and the sewage pipe (18) is located at institute It states in sludge-tank (46).

4. a kind of sewage disposal system according to claim 1, which is characterized in that set in the two stage treatment device (2) Set there are two support plate (25), the support plate (25) the two stage treatment device (2) is separated into top anaerobic cavity (20), The aerobic cavity (21) at middle part and the anoxic chamber (22) of lower part are provided with multiple second through-holes on each support plate (25) (49), the lower part of each support plate (25) is provided with pulling plate (23), is provided with and the second through-hole on the pulling plate (23) (49) third through-hole (26) for communicating or being staggered, each pulling plate (23) extend to the outside of the two stage treatment device (2), The pulling plate (23) end on the outside of the two stage treatment device (2) is provided with the second motor (24), in the aerobic cavity (21) It is provided with oxygen supply mechanism, is provided with the first vent window (27) on the side wall of the aerobic cavity (21), the interior institute of aerobic cavity (21) The top for stating support plate (25) is provided with the second filter screen (33), and the side wall upper part of the anoxic chamber (22) is provided with the second ventilation Window (35) is provided with cover (36) on the outside of the vent window, and cover (36) bottom is provided with lift drive mechanism.

5. a kind of sewage disposal system according to claim 4, which is characterized in that the oxygen supply mechanism includes oxygen supply case (28), the oxygen supply case (28) is connected to by oxygen supplying tube (29) with the aerobic cavity (21), described in the aerobic cavity (21) It is provided on oxygen supplying tube (29) multiple apertures (32), is arranged on the oxygen supplying tube (29) on the outside of the two stage treatment device (2) There are blower (30) and the 6th valve (31).

6. a kind of sewage disposal system according to claim 4, which is characterized in that the lifting drive includes being located at The telescopic rod (37) of cover (36) bottom and the third motor (38) for being located at the telescopic rod (37) bottom.

7. a kind of sewage disposal system according to claim 6, which is characterized in that third motor (38) the bottom setting There are bracket (39).

8. a kind of sewage disposal system according to claim 4, which is characterized in that the side of second filter screen (33) It is provided with the second sewage draining exit (34).

9. a kind of sewage disposal system according to claim 1, which is characterized in that set in the tertiary treatment device (3) It is equipped with rabbling mechanism, is provided with dosing mouth (51) at the top of the tertiary treatment device (3), the tertiary treatment device (3) Bottom is provided with outlet pipe (43), is provided with the 5th valve (44) on the outlet pipe (43).

10. a kind of sewage disposal system according to claim 9, which is characterized in that the rabbling mechanism includes stirring rod (40) and the stirring blade (42) that is located on the stirring rod (40), the three-level is extended at the top of the stirring rod (40) The top outer of processing unit (3) is provided with the 4th motor (41) at the top of the stirring rod (40).