CN113800695A - Rural breeding and domestic wastewater treatment device and treatment method thereof - Google Patents

Abstract

The application discloses a rural breeding and domestic wastewater treatment device, which comprises a stirring assembly and a filtering assembly, wherein the stirring assembly comprises a motor, a stirring rod, a scraper plate, a stirring blade and a stirring tank, and the stirring rod is rotatably installed in the stirring tank through a sealing bearing; the filter assembly comprises a filter tank, three first filter screens, an activated carbon layer, a sepiolite layer, a grit layer and a filter pipe; the processing method comprises the following steps: s1, mounting, namely butting a waste water outlet of rural breeding or a domestic waste water outlet with a water inlet pipe of a treatment device; s2, stirring, wherein after the butt joint is completed, the wastewater enters a stirring tank, and a medicament for treating harmful substances in the wastewater is put into the stirring tank from a feed hopper; s3, filtering; and S4, sterilizing. The scheme can effectively improve the wastewater treatment quality and reduce the harm of direct wastewater discharge to rural environment.

Description

Rural breeding and domestic wastewater treatment device and treatment method thereof

Technical Field

The invention relates to the technical field of wastewater treatment, in particular to a rural breeding and domestic wastewater treatment device and a rural breeding and domestic wastewater treatment method.

Background

The water treatment mode comprises physical treatment and chemical treatment. The mode of human being's water treatment has been quite a lot of years history, and the physical method includes utilizing the different filter media of various aperture sizes, utilizes absorption or separation mode, gets rid of the impurity in aquatic outside, and the more important person in the absorption mode is for adsorbing with active carbon, and separation method is to pass through the filter media with water, lets the impurity of bigger volume can't pass through, and then obtains comparatively clean water. In addition, the physical methods also include precipitation methods, which are obtained by floating impurities with a smaller specific gravity on the water surface or precipitating impurities with a larger specific gravity below the water surface. The chemical method is to convert the impurities in water into substances which are less harmful to human bodies by various chemicals or concentrate the impurities, and the longest historical chemical treatment method can be that alum is added into water, and after the impurities in the water are collected, the volume is increased, and then the impurities can be removed by a filtration method.

Waste water generated by rural planting, breeding and living is generally directly discharged into a river, the waste water is decomposed under the self-cleaning action of a water body, and along with the living standard and the increase of biochemical products used in the planting and breeding industries, the waste water discharged into the river is difficult to be decomposed through the self-cleaning of the water body, so that the river pollution is gradually intensified, and therefore, the device and the method for treating the waste water generated by the rural planting and breeding and living are provided.

Disclosure of Invention

The main purpose of the application is to provide a rural breeding and domestic wastewater treatment device and a treatment method thereof, so as to solve the problems in the related art.

In order to achieve the purpose, the application provides a rural breeding and domestic wastewater treatment device which comprises

The stirring assembly comprises a motor, a stirring rod, a scraping plate, a stirring blade and a stirring tank, wherein the stirring rod is rotatably installed in the stirring tank through a sealing bearing, the upper end of the stirring rod penetrates through the central position of the inner top of the stirring tank, one end of the stirring rod is connected with a rotating shaft of the motor through a coupler, the stirring blade is fixedly welded on the stirring rod, the scraping plate is fixedly welded on the side wall of the stirring rod through a connecting rod, one side of the scraping plate is attached to the inner wall of the stirring tank, and the motor is installed at the central position of the top of the stirring tank through a motor base;

filter assembly, filter assembly is including filtering jar, three first filter screen, activated carbon layer, sepiolite layer, coarse sand stone layer and chimney filter, filter the jar pass through the aqueduct with the agitator tank is linked together, and is three first filter screen is all installed in filtering the jar, activated carbon layer, sepiolite layer and coarse sand stone layer are placed respectively three on the first filter screen, the chimney filter is installed filter in the jar, the one end of chimney filter run through in filter tank's lateral wall, the chimney filter is located threely the below of first filter screen.

Preferably, the lower end of the stirring rod is fixedly welded with a conveying rod, and the side wall of the conveying rod is provided with a helical blade.

Preferably, the bottom central point department of putting intercommunication of agitator tank has the pipe of slagging tap, the bottom of agitator tank sets up to the toper end, just install vibrating motor through the bolt on the bottom lateral wall of agitator tank, the lateral part intercommunication of agitator tank has the inlet tube, the upper end intercommunication of agitator tank has the feeder hopper, install the apron through the hinge on the feeder hopper.

Preferably, the guide way has been seted up on filtering tank's the inner wall, guide way slidable mounting has the guide bar, the lateral part of guide bar with the lateral part fixed connection of first filter screen, the articulated cover of installing in filtering tank's upper portion, the intercommunication has the blast pipe on the cover, install activated carbon net in the blast pipe.

Preferably, the chimney filter includes nonrust steel pipe and second filter screen, a plurality of bar holes have been seted up on the lateral wall of nonrust steel pipe, the bar hole is annular array and distributes on the lateral wall of nonrust steel pipe, the second filter screen is the cast setting, second filter screen screw thread is installed on the nonrust steel pipe.

Preferably, the both ends of second filter screen are welded fastening respectively has first annular circle and second annular circle, the internal thread has been seted up on the inner wall of first annular circle, the bonding is fixed with the flexible layer on the inner wall of second annular circle.

Preferably, the outer wall of the stainless steel pipe is provided with an external thread matched with the internal thread, the side wall of the flexible layer is attached to the outer wall of the stainless steel pipe, and the strip-shaped hole is located in the second filter screen.

Preferably, the stainless steel pipe is provided with a convex block, the bottom side of the filtering tank is provided with a threaded hole, the convex block is installed in the threaded hole in a threaded manner, and one end of the stainless steel pipe is abutted to the inner wall of the filtering tank.

Preferably, the fixed hose that has cup jointed in one end of nonrust steel pipe, the one end intercommunication of hose has the subassembly that disinfects, the subassembly that disinfects is including disinfecting case and ultraviolet lamp, ultraviolet lamp installs the top of disinfecting the case, just ultraviolet lamp's illuminating part is located disinfect the incasement, the one end that nonrust steel pipe was kept away from to the hose with the inlet tube intercommunication of disinfecting the case.

The invention also provides a method for treating rural breeding and domestic wastewater, which comprises the following steps:

s1, mounting, namely butting a waste water outlet of rural breeding or a domestic waste water outlet with a water inlet pipe of a treatment device;

s2, stirring, wherein after the butt joint is completed, the wastewater enters a stirring tank, a medicament for treating harmful substances in the wastewater is put into the stirring tank from a feed hopper, and then a motor is started to drive a stirring rod to stir the wastewater in the stirring tank at 30 r/S;

s3, filtering, standing for a period of time, opening a valve on the water guide pipe, allowing the stirred wastewater to enter a filtering tank through the water guide pipe, and discharging the wastewater into a sterilization box after the wastewater is filtered by the activated carbon layer, the sepiolite layer, the rough sandstone layer, the first filter screen and the filter pipe;

and S4, sterilizing, namely irradiating the filtered water entering the sterilization box by ultraviolet rays generated by an ultraviolet lamp, sterilizing and disinfecting, and discharging the sterilized water from the sterilization box to finish the treatment of the wastewater.

Compared with the prior art, the beneficial effects of this application are:

1. through the use of the stirring assembly, after wastewater enters the stirring tank, the agent for cleaning the wastewater is added into the stirring tank from the feed hopper, the motor is started to drive the stirring rod to rotate, so that the stirring blade can stir the wastewater and the agent in the stirring tank, and through the use of the scraper blade, when the stirring rod rotates, the scraper blade can be driven to clean the inner wall of the stirring tank, so that dirt adhered to the inner wall of the stirring tank can be scraped off, and then the stirring rod is stood, so that the mixing of the wastewater and the agent can be accelerated;

2. the valve on the water guide pipe is opened, the wastewater in the stirring tank is discharged into the filtering tank, then the wastewater falls to the bottom of the filtering tank after being filtered by the activated carbon layer, the sepiolite layer, the grit layer and the first filter screen, and then the filtered water is discharged into the sterilizing component after being filtered by the filtering pipe, so that the wastewater can be filtered and decolored, and impurities in the water can be effectively removed;

3. through the matching use of the material conveying rod and the helical blade, when slag is discharged from the stirring tank, the stirring rod is driven to rotate by the motor, so that the material conveying rod drives the helical blade to rotate, the slag in the stirring tank is discharged, and the slag pipe is prevented from being blocked by the slag;

4. through the use of the sterilization assembly, when waste water flows through the sterilization box, the waste water after being filtered is sterilized and disinfected by ultraviolet rays generated by the ultraviolet lamp, and then the waste water can be discharged from the external environment, so that the waste water treatment quality can be effectively improved, and the harm of the direct discharge of the waste water to the rural environment is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view, partially in section, of a second screen according to the present invention;

FIG. 3 is a schematic view of the stainless steel tube axis of the present invention;

FIG. 4 is a schematic cross-sectional view of a filter tube of the present invention;

FIG. 5 is an enlarged view of the portion A of FIG. 4 according to the present invention;

FIG. 6 is a schematic cross-sectional view of a blender jar of the present invention;

FIG. 7 is a block flow diagram of the present invention.

In the figure: 100. a stirring assembly; 110. a motor; 120. a stirring rod; 121. a material conveying rod; 122. a helical blade; 130. a squeegee; 140. stirring blades; 150. a stirring tank; 151. a slag pipe; 152. a vibration motor; 153. a water inlet pipe; 154. a feed hopper; 200. a filter assembly; 210. a filter tank; 211. a guide groove; 212. a guide bar; 213. a can lid; 214. an exhaust pipe; 215. an activated carbon mesh; 220. a first filter screen; 230. an activated carbon layer; 240. a layer of sepiolite; 250. a coarse gravel layer; 260. a filter tube; 261. a stainless steel tube; 262. a second filter screen; 263. a strip-shaped hole; 264. a first annular ring; 265. a second annular ring; 266. an internal thread; 267. a flexible layer; 268. an external thread; 269. a bump; 270. a water conduit; 310. a threaded hole; 320. a hose; 400. a sterilization assembly; 410. a sterilization box; 420. an ultraviolet lamp.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, 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 only partial embodiments of the present application, but not all embodiments. 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 terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

In addition, the term "plurality" shall mean two as well as more than two.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1

Referring to fig. 1-7, the present application provides a rural breeding and domestic wastewater treatment device, which comprises a stirring assembly 100 and a filtering assembly 200;

stirring component 100 includes motor 110, puddler 120, scraper blade 130, stirring leaf 140 and agitator tank 150, puddler 120 passes through sealed bearing and rotates to be installed in agitator tank 150, the upper end of puddler 120 run through in agitator tank 150's interior top central point puts the department, the one end of puddler 120 pass through the shaft coupling with motor 110's pivot axis is connected, stirring leaf 140 welded fastening is in on the puddler 120, scraper blade 130 passes through connecting rod welded fastening on the lateral wall of puddler 120, one side of scraper blade 130 with agitator tank 150's inner wall laminates mutually, motor 110 passes through the motor cabinet to be installed in agitator tank 150's top central point puts the department, through stirring component 100's use, after waste water enters into agitator tank 150, will clear up the medicament of waste water and add the agitator tank 150 in from feeder hopper 154, open motor 110 and drive puddler 120 and rotate, therefore, the stirring blade 140 stirs the wastewater and the medicament in the stirring tank 150, and through the use of the scraper 130, when the stirring rod 120 rotates, the scraper 130 can be driven to clean the inner wall of the stirring tank 150, so that the dirt adhered to the inner wall of the stirring tank 150 can be scraped off, and then the stirring rod stands still, so that the mixing of the wastewater and the medicament can be accelerated;

the filter assembly 200 comprises a filter tank 210, three first filter screens 220, an activated carbon layer 230, a sepiolite layer 240, a sandstone layer 250 and a filter pipe 260, wherein the filter tank 210 is communicated with the stirring tank 150 through a water guide pipe 270, the three first filter screens 220 are all installed in the filter tank 210, the activated carbon layer 230, the sepiolite layer 240 and the sandstone layer 250 are respectively placed on the three first filter screens 220, the filter pipe 260 is installed in the filter tank 210, one end of the filter pipe 260 penetrates through the side wall of the filter tank 210, the filter pipe 260 is positioned below the three first filter screens 220, when in use, a valve on the water guide pipe 270 is opened, wastewater in the stirring tank 150 is discharged into the filter tank 210, and then the wastewater falls on the bottom of the filter tank 210 after being filtered by the activated carbon layer 230, the sepiolite layer 240, the sandstone layer 250 and the first filter screens 220, then the water after filtration is discharged to the sterilization component 400 after being filtered by the filter tube 260, and the wastewater can be filtered and decolorized, so that impurities in the water can be effectively removed.

Specifically, the lower end of the stirring rod 120 is welded and fixed with a material conveying rod 121, the side wall of the material conveying rod 121 is provided with a helical blade 122, the bottom center position of the stirring tank 150 is communicated with a slag discharging pipe 151, the bottom of the stirring tank 150 is provided with a conical bottom, so that dregs can be collected to the bottom of the stirring tank 150 conveniently, a vibration motor 152 is mounted on the side wall of the bottom of the stirring tank 150 through a bolt, when discharging materials, the dregs can be discharged from the stirring tank 150 conveniently through the vibration motor 152, the side part of the stirring tank 150 is communicated with a water inlet pipe 153, the upper end of the stirring tank 150 is communicated with a feed hopper 154, a cover plate is mounted on the feed hopper 154 through a hinge, the feed hopper 154 is used for placing a medicament for removing harmful substances in waste water into the stirring tank 150, and when the stirring tank 150 discharges the dregs through the cooperation of the material conveying rod 121 and the helical blade 122, the stirring rod 120 is driven to rotate by the motor 110, so that the conveying rod 121 drives the helical blade 122 to rotate, dregs in the stirring tank 150 are discharged, and the dregs are prevented from blocking the dreg discharging pipe 151.

Specifically, guide way 211 has been seted up on the inner wall of filter tank 210, guide way 211 slidable mounting has guide bar 212, the lateral part of guide bar 212 with the lateral part fixed connection of first filter screen 220, the articulated cover 213 of installing in upper portion of filter tank 210, the intercommunication has blast pipe 214 on the cover 213, install activated carbon net 215 in the blast pipe 214, use through the cooperation of guide way 211 and guide bar 212, can make first filter screen 220 slide in filter tank 210, conveniently regularly with first filter screen 220, clean first filter screen 220.

Specifically, the chimney filter 260 includes nonrust steel pipe 261 and second filter screen 262, and nonrust steel pipe 261 is the nonrust steel pipe of one end seal, a plurality of bar holes 263 have been seted up on nonrust steel pipe 261's the lateral wall, bar hole 263 is the annular array and distributes on nonrust steel pipe 261's the lateral wall, second filter screen 262 is the cast setting, second filter screen 262 threaded mounting is in on the nonrust steel pipe 261, through the use of chimney filter 260, after the waste water after the process filtration falls into the bottom of filtering tank 210, waste water passes second filter screen 262, enters into nonrust steel pipe 261 from bar hole 263 in, discharges by nonrust steel pipe 261 again, can be further filter waste water, improves the waste water treatment quality.

Specifically, the both ends of second filter screen 262 are welded fastening respectively has first annular circle 264 and second annular circle 265, internal thread 266 has been seted up on the inner wall of first annular circle 264, the bonding is fixed with flexible layer 267 on the inner wall of second annular circle 265, set up on the outer wall of stainless steel pipe 261 with internal thread 266 assorted external screw thread 268, the lateral wall of flexible layer 267 with the outer wall of stainless steel pipe 261 is laminated mutually, bar hole 263 is located in the second filter screen 262, flexible layer 267 sets up to the rubber layer for hug closely with the outer wall of stainless steel pipe, make waste water only flow in bar hole 263 from second filter screen 262, through the use of internal thread 266, convenience of customers installs second filter screen 262 on stainless steel pipe 261, conveniently cleans and changes second filter screen 262.

Specifically, a bump 269 is arranged on the stainless steel pipe 261, a threaded hole 310 is formed in the bottom side of the filter tank 210, the bump 269 is threadedly mounted in the threaded hole 310, one end of the stainless steel pipe 261 abuts against the inner wall of the filter tank 210, and through the use of the bump 269 and the threaded hole 310, the stainless steel pipe 261 can be taken out of the filter tank 210 simply and conveniently, so that the filter pipe 260 is cleaned conveniently.

Specifically, the fixed hose 320 that has cup jointed of one end of nonrust steel pipe 261, the one end intercommunication of hose 320 has the subassembly 400 that disinfects, the subassembly 400 that disinfects is including disinfecting case 410 and ultraviolet lamp 420, ultraviolet lamp 420 is installed disinfect the top of case 410, just ultraviolet lamp 420's illuminating part is located disinfect in the case 410, the one end that nonrust steel pipe 261 was kept away from to hose 320 with disinfect the inlet tube intercommunication of case 410, through the use of subassembly 400 that disinfects, when the case 410 was disinfected in the waste water flow-through, the ultraviolet ray that ultraviolet lamp 420 produced disinfected and disinfect the waste water after the filtration, then can discharge in the external environment, can effectively improve the waste water treatment quality, reduce the harm of waste water direct discharge to rural environment.

The invention also provides a method for treating rural breeding and domestic wastewater, which comprises the following steps:

s1, mounting, namely butting a waste water outlet of rural breeding or a domestic waste water outlet with a water inlet pipe 153 of the treatment device;

s2, stirring, wherein after the butt joint is completed, the wastewater enters the stirring tank 150, the medicament for treating the harmful substances in the wastewater is put into the stirring tank 150 from the feed hopper 154, and then the motor 110 is turned on, so that the motor 110 drives the stirring rod to stir the wastewater in the stirring tank 150 at 30 r/S;

s3, filtering, standing for a period of time, opening a valve on the water guide pipe 270, allowing the stirred wastewater to enter the filter tank 210 through the water guide pipe 270, and discharging the wastewater into the sterilization box 410 after the wastewater is filtered by the activated carbon layer 230, the sepiolite layer 240, the grit layer 250, the first filter screen 220 and the filter pipe 260;

and S4, sterilizing, namely irradiating the filtered water entering the sterilization box 410 by ultraviolet rays generated by the ultraviolet lamp 420, sterilizing and disinfecting, and then discharging the sterilized water from the sterilization box 410 to finish the treatment of the wastewater.

Specifically, this rural kind of breed and life effluent treatment plant's theory of operation: when the wastewater treatment device is used, after wastewater enters the stirring tank 150, the agent for cleaning the wastewater is added into the stirring tank 150 from the feed hopper 154, the motor 110 is turned on to drive the stirring rod 120 to rotate, so that the stirring blade 140 stirs the wastewater and the agent in the stirring tank 150, the scraper 130 is used, when the stirring rod 120 rotates, the scraper 130 can be driven to clean the inner wall of the stirring tank 150, dirt adhered to the inner wall of the stirring tank 150 can be scraped off, then the stirring rod stands still, the mixing of the wastewater and the agent can be accelerated, the valve on the water guide pipe 270 is opened, the wastewater in the stirring tank 150 is discharged into the filter tank 210, then the wastewater falls at the bottom of the filter tank 210 after being filtered by the activated carbon layer 230, the sepiolite layer 240, the coarse sandstone layer 250 and the first filter screen 220, then the filtered water is discharged into the sterilization component 400 after being filtered by the filter pipe 260, and the wastewater can be filtered, and decolors waste water, can effectually get rid of the impurity of aquatic, through the use of subassembly 400 that disinfects, when waste water flows through sterilization case 410, the waste water after the ultraviolet lamp 420 produced disinfects and disinfects, then can discharge in the external environment, can effectively improve waste water treatment quality, reduces the harm of waste water direct discharge to rural environment.

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 (10)

1. A rural breeding and domestic wastewater treatment device is characterized by comprising

The stirring assembly (100) comprises a motor (110), a stirring rod (120), a scraper (130), a stirring blade (140) and a stirring tank (150), wherein the stirring rod (120) is rotatably installed in the stirring tank (150) through a sealing bearing, the upper end of the stirring rod (120) penetrates through the center of the inner top of the stirring tank (150), one end of the stirring rod (120) is connected with a rotating shaft of the motor (110) through a coupler, the stirring blade (140) is fixedly welded on the stirring rod (120), the scraper (130) is fixedly welded on the side wall of the stirring rod (120) through a connecting rod, one side of the scraper (130) is attached to the inner wall of the stirring tank (150), and the motor (110) is installed at the center of the top of the stirring tank (150) through a motor base;

filter element (200), filter element (200) is including filtering jar (210), three first filter screen (220), activated carbon layer (230), seafoam stone layer (240), coarse gravel layer (250) and chimney filter (260), filter jar (210) through aqueduct (270) with agitator tank (150) are linked together, and are three first filter screen (220) are all installed in filtering jar (210), activated carbon layer (230), seafoam stone layer (240) and coarse gravel layer (250) are placed respectively threely on first filter screen (220), chimney filter (260) are installed in filtering jar (210), the one end of chimney filter (260) run through in the lateral wall of filtering jar (210), chimney filter (260) are located threely the below of first filter screen (220).

2. The rural breeding and domestic wastewater treatment device according to claim 1, wherein a material conveying rod (121) is welded and fixed to the lower end of the stirring rod (120), and helical blades (122) are arranged on the side wall of the material conveying rod (121).

3. The rural breeding and domestic wastewater treatment device according to claim 1, wherein a slag discharging pipe (151) is connected to the central position of the bottom of the stirring tank (150), the bottom of the stirring tank (150) is set to be a conical bottom, a vibration motor (152) is installed on the side wall of the bottom of the stirring tank (150) through a bolt, a water inlet pipe (153) is connected to the side of the stirring tank (150), a feed hopper (154) is connected to the upper end of the stirring tank (150), and a cover plate is installed on the feed hopper (154) through a hinge.

4. The rural breeding and domestic wastewater treatment device according to claim 1, wherein a guide groove (211) is formed in the inner wall of the filter tank (210), a guide rod (212) is slidably mounted in the guide groove (211), the side portion of the guide rod (212) is fixedly connected with the side portion of the first filter screen (220), a tank cover (213) is hinged to the upper portion of the filter tank (210), an exhaust pipe (214) is communicated with the tank cover (213), and an activated carbon net (215) is mounted in the exhaust pipe (214).

5. The rural breeding and domestic wastewater treatment device according to claim 1, wherein the filtering pipe (260) comprises a stainless steel pipe (261) and a second filtering net (262), a plurality of strip-shaped holes (263) are opened on the side wall of the stainless steel pipe (261), the strip-shaped holes (263) are distributed on the side wall of the stainless steel pipe (261) in an annular array, the second filtering net (262) is arranged in a pipe shape, and the second filtering net (262) is installed on the stainless steel pipe (261) in a threaded manner.

6. The rural breeding and domestic wastewater treatment device according to claim 5, wherein a first annular ring (264) and a second annular ring (265) are respectively welded and fixed at two ends of the second filter screen (262), an internal thread (266) is formed on the inner wall of the first annular ring (264), and a flexible layer (267) is bonded and fixed on the inner wall of the second annular ring (265).

7. The rural breeding and domestic wastewater treatment device according to claim 6, wherein the outer wall of the stainless steel pipe (261) is provided with an external thread (268) matched with the internal thread (266), the side wall of the flexible layer (267) is attached to the outer wall of the stainless steel pipe (261), and the strip-shaped hole (263) is located in the second filter screen (262).

8. The rural breeding and domestic wastewater treatment device and the treatment method thereof according to claim 7, wherein a protrusion (269) is disposed on the stainless steel pipe (261), a threaded hole (310) is opened on the bottom side of the filter tank (210), the protrusion (269) is threadedly installed in the threaded hole (310), and one end of the stainless steel pipe (261) is abutted against the inner wall of the filter tank (210).

9. The rural breeding and domestic wastewater treatment device according to claim 8, wherein a hose (320) is fixedly sleeved at one end of the stainless steel pipe (261), one end of the hose (320) is communicated with a sterilization assembly (400), the sterilization assembly (400) comprises a sterilization box (410) and an ultraviolet lamp (420), the ultraviolet lamp (420) is installed at the top of the sterilization box (410), a light emitting part of the ultraviolet lamp (420) is located in the sterilization box (410), and one end of the hose (320) far away from the stainless steel pipe (261) is communicated with a water inlet pipe of the sterilization box (410).

10. A rural breeding and domestic wastewater treatment method is characterized by comprising the following steps:

s1, mounting, namely butting a waste water outlet of rural breeding or a domestic waste water outlet with a water inlet pipe of a treatment device;

s2, stirring, wherein after the butt joint is completed, the wastewater enters a stirring tank, a medicament for treating harmful substances in the wastewater is put into the stirring tank from a feed hopper, and then a motor is started to drive a stirring rod to stir the wastewater in the stirring tank at 30 r/S;

s3, filtering, standing for a period of time, opening a valve on the water guide pipe, allowing the stirred wastewater to enter a filtering tank through the water guide pipe, and discharging the wastewater into a sterilization box after the wastewater is filtered by the activated carbon layer, the sepiolite layer, the rough sandstone layer, the first filter screen and the filter pipe;

and S4, sterilizing, namely irradiating the filtered water entering the sterilization box by ultraviolet rays generated by an ultraviolet lamp, sterilizing and disinfecting, and discharging the sterilized water from the sterilization box to finish the treatment of the wastewater.

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