CN115745315A - Household sewage treatment device and using method thereof - Google Patents

Abstract

The invention relates to the technical field of household sewage treatment, in particular to a household sewage treatment device and a using method thereof. The invention aims to solve the technical problems that the grease sewage treatment device does not have the function of treating grease sewage, the cleaning and the maintenance in the later period are troublesome, and the sterilization cannot be realized. In order to solve the technical problem, the invention provides a household sewage treatment device which comprises a precipitation device, wherein one side of the precipitation device is fixedly connected with a filter box, the other side of the filter box is fixedly connected with a sterilization box, one side opposite to the inner wall of the filter box is respectively nested with a first switch pipe valve matched with the precipitation device and a second switch pipe valve matched with the sterilization box, the first electronic pipe valve is matched with a stirring rod, the grease-containing domestic sewage is fully mixed with a sewage treatment agent to generate a flocculation reaction, and the precipitated water is discharged through the first switch pipe valve, so that the sewage is precipitated and then filtered in a physical mode, and the filtering effect is improved.

Description

Household sewage treatment device and using method thereof

Technical Field

The invention relates to the technical field of household sewage treatment, in particular to a household sewage treatment device and a using method thereof.

Background

The domestic sewage is waste water generated by people in domestic water discharge, domestic sanitary facilities and other places in life, more garbage and bacteria exist in the domestic sewage, and if the domestic sewage is directly discharged to the outside, the pollution of rivers and even underground water can be caused.

The prior patent (publication No. CN 108975595A) discloses a domestic sewage treatment device, and at least the following problems are not solved in the prior art: 1. in the process of domestic sewage treatment, the separation and removal of grease are troublesome, and the current sewage treatment device does not have the function of treating sewage containing grease; 2. the existing device is provided with a slag discharge port, but waste residues are easy to occur, the cleaning is troublesome and dirty, filtering consumables cannot be replaced, and the overall structure is not beneficial to later cleaning and maintenance; 3. the sewage treatment device has no disinfection and sterilization function, contains a large amount of bacteria in the sewage, and can cause the growth of the bacteria without clearing, thereby causing the increase of the peculiar smell of the sewage after being discharged and bringing pollution to the environment.

In addition, a plurality of filtering units are often adopted in the existing domestic sewage treatment device to carry out sewage filtering treatment, and the filtering units need to be periodically removed and then cleaned, so that the filtering units need to be frequently detached and replaced.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a household sewage treatment device and a using method thereof, and solves the problems that the device does not have the function of treating grease sewage, is troublesome to clean and maintain in the later period, and cannot disinfect and sterilize.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a domestic sewage treatment plant, includes and deposits the device, one side fixedly connected with rose box of depositing the device, and the opposite side fixedly connected with sterilization case of rose box, the relative one side of rose box inner wall nests respectively and deposits device matched with first switch tube valve and with sterilization case matched with second switch tube valve, filter equipment and the sealed lid of second have been pegged graft respectively at the top of rose box and sterilization case, the bottom fixedly connected with ultraviolet tube of the sealed lid of second, and ultraviolet tube alternates at the sterilization incasement, the logical mouth department of depositing device one side is pegged graft and is had filter-pressing device, the top surface fixedly connected with of depositing the device has the inlet tube rather than inside intercommunication, the third electron tube valve of one side fixedly connected with rather than inside intercommunication of sterilization case, one side fixedly connected with control switch of depositing the device, the equal fixedly connected with liquid level sensor in one side of sterilization case and the device inner wall that deposits.

Wherein filter equipment includes the filter cartridge, every filter cartridge includes the heterogeneous filtration consumptive material of three vertical direction parallel arrangement, wherein be provided with the baffle between the adjacent filtration consumptive material, the top and the bottom of adjacent baffle respectively with filter cartridge box body between the top and the bottom reserve and have an opening, an electromagnetic switch valve is installed to this opening part, rivers are horizontal S type flow between three baffle, wherein be provided with a plurality of archs on being close to the PP cotton and the active carbon cotton of baffle plate body distolaterally, time-sharing switches the on-off state of two electromagnetic switch valves under the self-cleaning mode.

Further preferably, the sediment device includes the box, and box fixed connection is in one side of rose box, sediment cabin and medicament cabin have been seted up in the box, and the bottom in medicament cabin and the top fixed connection who deposits the cabin, the fixed interlude in bottom of medicament cabin inner wall has first electron tube valve, and inside the sediment cabin that the bottom of first electron tube valve runs through the medicament cabin and extend to the below, the material feeding pipe of the top fixedly connected with and the inside intercommunication of medicament cabin of box, one side fixedly connected with motor of box, the relative one side swing joint of sediment cabin inner wall has the puddler, and the one end of puddler runs through the output fixed connection who deposits the cabin and rather than the motor of avris, the top surface and the bottom surface of box respectively fixedly connected with deposit the inlet tube and the second electron tube valve of cabin inside intercommunication, the filter-pressing device alternates in the sediment cabin, and one side joint of filter-pressing device and the one side of depositing the cabin inner wall.

Further preferably, filter equipment includes the filter cassette, and the filter cassette pegs graft in the rose box, the top joint of filter cassette has first sealed lid, and the interpolation of filter cassette has three filtration consumptive materials.

Further preferred, the filter-pressing device includes the filter-pressing box, and the filter-pressing box is pegged graft in the logical mouth department of sediment device one side, filter-pressing cabin and machinery cabin have from left to right been seted up in the filter-pressing box in proper order, one side in filter-pressing cabin runs through to the avris of filter-pressing box, and the avris swing joint of filter-pressing box has the chamber door with filter-pressing cabin looks adaptation, and one side fixedly connected with electron telescopic link of machinery cabin inner wall, the one end of electron telescopic link runs through to the filter-pressing cabin and rather than one side fixed connection of the inside filter-pressing board, the bottom surface nestification of filter-pressing box inner wall has the filter plate that runs through to its bottom surface, and the top surface of filter-pressing box inner wall sets up the water inlet that runs through to its top surface, and water inlet and inlet tube looks adaptation.

Further preferably, through holes penetrating through the inner wall of the filtering device are formed in two sides of the filtering device, and the two through holes are respectively matched with the positions of the first switch pipe valve and the second switch pipe valve.

Preferably, the bottom of the inner wall of the medicament cabin is provided with a drainage slope, and the top of the feeding pipe is clamped with a sealing cover matched with the feeding pipe.

Further preferably, the inside equidistance of filter cartridge is seted up the slot that three avris communicates in proper order, and three filtration consumptive material pegs graft respectively in three slot, and three filtration consumptive material is PP cotton, MBR filtration membrane and active carbon cotton respectively.

A using method of a domestic sewage treatment device comprises the following steps:

s1, at first with inlet tube connection to kitchen sink pipeline, when pouring sewage, sewage gets into the filter-pressing under-deck from the inlet tube, falls on the filter screen, and vegetables food waste is blockked on the filter screen, and when filter-pressing under-deck residue was long-pending full or need clear up the filter-pressing under-deck, promote the filter-pressing board through the electron telescopic link and compress vegetables food waste, opens the chamber door again, and the residue after making the compression continues to be promoted to taking out the residue completely by the filter-pressing board, and the filter-pressing box can take out completely and wash.

S2, sewage filtered by a filter screen falls into the settling chamber, the water level height is sensed by a liquid level sensor, whether a sewage treatment agent is added or not is controlled, the first electronic tube valve is controlled to be opened by a control switch, the sewage treatment agent is quantitatively put into the settling chamber, a started motor drives a stirring rod to rotate and stir for a set time, then stirring is stopped, the sewage and the sewage treatment agent are fully mixed to generate flocculation reaction and then are kept stand for settling, precipitates can be deposited on the bottom of the settling chamber, and the precipitates are discharged out of the settling chamber through a second electronic tube valve after clear water is discharged.

S3, the first switch pipe valve is controlled to be opened through the control switch, the precipitated clear water part enters the filter box and sequentially passes through the three filter consumables to filter fine impurities, and the filter box can be periodically detached, cleaned and replaced by the filter consumables.

S4, enabling the filtered sewage to flow into a sterilization box, sterilizing by irradiating an ultraviolet lamp tube, and opening a third electronic tube valve to discharge purified water when the sewage needs to be used or reaches the detection height of a liquid level sensor;

s5, when self-cleaning is needed, only two electromagnetic valves need to be opened in a periodic time-sharing mode, so that the flow of water flow is changed periodically, the PP cotton and the activated carbon cotton are impacted up and down, the PP cotton and the activated carbon cotton can be squeezed transversely while being overstocked up and down by virtue of the bulges arranged on the PP cotton and the activated carbon cotton, the PP cotton and the activated carbon cotton can be self-cleaned, and the taking-out and replacement period is greatly delayed.

(III) advantageous effects

The invention provides a household sewage treatment device and a using method thereof, and the household sewage treatment device has the following beneficial effects:

(1) The utility model discloses a domestic sewage treatment device, including liquid level sensor, motor, stirring rod, valve, switch tube valve, make the domestic sewage that contains grease and sewage treatment agent intensive mixing produce flocculation reaction, water through depositing after discharges through first switch tube valve, make sewage filter through physical mode again after depositing, and then improved the filter effect, the in-service use demand has been satisfied, open mode through first electronic tube valve of liquid level sensor control and motor, do not start when the water level is not high enough, save electric power and sewage treatment agent, automatic start when the water level is high enough, high durability and convenient use, need not dependent manual operation.

(2) During sewage got into the filter-pressing box through inlet tube and water inlet, filter solid-state debris through the filter plate, rethread electronic telescopic link promoted the filter-pressing plate and released the filter-pressing box after with its compression, conveniently clear up debris, and the filter-pressing box, it is removable all can to dismantle filtration consumptive material and ultraviolet tube, make things convenient for the maintenance clearance and the use in later stage, and has simple structure, and low in manufacturing cost, easily advantages such as installation, make most families all can use, thereby the water economy resource, and the life cost is reduced.

(3) The sewage in the rose box is convenient for filter and adsorb the peculiar smell through filtering the consumptive material, can disinfect to the water of disinfecting the incasement through ultraviolet tube, convenient and fast, and the environmental protection, the water that has handled can be used to water flowers or wash the closestool etc. can not cause secondary pollution for the environment.

Drawings

FIG. 1 is a front cross-sectional view of the structure of the present invention;

FIG. 2 is a front view of the structure of the present invention;

fig. 3 is a top cross-sectional view of the inventive structure.

In the figure: 1. a precipitation device; 101. a box body; 102. a settling chamber; 103. a medicament compartment; 104. a first electronic tube valve; 105. a feeding pipe; 106. a motor; 107. a stirring rod; 2. a filter box; 3. sterilizing; 4. a first on-off tube valve; 5. a second on-off tube valve; 6. a filtration device; 601. a filter cartridge; 602. a first sealing cover; 603. filtering consumables; 7. a second sealing cover; 8. a filter pressing device; 801. pressing the filter box; 802. a filter pressing cabin; 803. a machinery compartment; 804. an electronic telescoping rod; 805. pressing the filter plate; 806. filtering the plate; 807. a water inlet; 9. a water inlet pipe; 10. a second electronic tube valve; 11. an ultraviolet lamp tube; 12. a third electronic tube valve; 13. a control switch; 14. a liquid level sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a domestic sewage treatment device, including precipitating device 1, one side fixedly connected with rose box 2 of precipitating device 1, and the opposite side fixedly connected with sterilization box 3 of rose box 2, the relative one side of rose box 2 inner wall is respectively nested have with precipitate 1 first switch tube valve of matched with 4 of device and with sterilization box 3 matched with second switch tube valve 5, filter box 2 and sterilization box 3's top is pegged graft respectively has filter equipment 6 and the sealed lid 7 of second, the bottom fixedly connected with ultraviolet tube 11 of the sealed lid 7 of second, and ultraviolet tube 11 alternates in sterilization box 3, the through-hole department of precipitating device 1 one side is pegged graft and is had filter pressing device 8, the top surface fixedly connected with inlet tube 9 rather than inside intercommunication of precipitating device 1, one side fixedly connected with third electron tube valve 12 rather than inside intercommunication of sterilization box 3, one side fixedly connected with control switch 13 of precipitating device 1, the equal fixedly connected with liquid level sensor 14 in one side of sterilization box 3 and precipitating device 1 inner wall.

The filtering device 6 comprises filtering boxes 601, each filtering box 601 comprises three filtering consumables 603 which are arranged in parallel in the vertical direction, a partition is arranged between the adjacent filtering consumables 603, an opening is reserved between the top and the bottom of each adjacent partition and the top and the bottom of the box body of the filtering box 601 respectively, an electromagnetic switch valve is installed at the opening, water flows transversely flow between the three partitions in an S shape, a plurality of bulges are arranged on the side, close to the sides of the PP cotton and the activated carbon cotton, of the partition plate body, the on-off states of the two electromagnetic switch valves are switched in a self-cleaning mode in a time-sharing mode, the design can enable filtering equipment to be self-cleaned, frequent taking and replacing operations are not needed, the cleaning cycle is greatly increased, specifically, when self-cleaning is needed, only two electromagnetic valves are periodically opened in a time-sharing mode, flow rate of the water flows periodically changes, PP cotton and activated carbon cotton are impacted vertically, PP cotton and activated carbon cotton can be squeezed horizontally while pressure is accumulated up and down by virtue of the bulges arranged on the filtering equipment, thus PP cotton and activated carbon cotton can be squeezed horizontally.

According to the invention, the sedimentation device 1 comprises a box body 101, the box body 101 is fixedly connected to one side of the filter box 2, a sedimentation cabin 102 and a medicament cabin 103 are arranged in the box body 101, the bottom of the medicament cabin 103 is fixedly connected with the top of the sedimentation cabin 102, a first electronic pipe valve 104 is fixedly inserted into the bottom of the inner wall of the medicament cabin 103, the bottom end of the first electronic pipe valve 104 penetrates through the medicament cabin 103 and extends into the sedimentation cabin 102 below, the top of the box body 101 is fixedly connected with a feeding pipe 105 communicated with the inside of the medicament cabin 103, one side of the box body 101 is fixedly connected with a motor 106, a stirring rod 107 is movably connected to the side opposite to the inner wall of the sedimentation cabin 102, one end of the stirring rod 107 penetrates through the sedimentation cabin 102 and is fixedly connected with the output end of the motor 106 on the side of the pipe valve, the top surface and the bottom surface of the box body 101 are respectively fixedly connected with a water inlet pipe 9 and a second electronic pipe 10 communicated with the inside of the sedimentation cabin 102, a filter pressing device 8 is inserted into the sedimentation cabin 102, and one side of the filter pressing device 8 is clamped with one side of the inner wall of the sedimentation cabin 102. Grease sewage treatment agent can be added into the medicament chamber 103. The top of the settling tank 102 is opened with two drainage slopes which are axisymmetrical with the center line of the front of the settling tank 102 as an axis, and the second electronic pipe valve 10 is located between the two drainage slopes.

In the invention, the filtering device 6 comprises a filtering box 601, the filtering box 601 is inserted into the filtering box 2, the top of the filtering box 601 is clamped with a first sealing cover 602, and three filtering consumables 603 are inserted into the filtering box 601.

In the invention, a filter pressing device 8 comprises a filter pressing box 801, the filter pressing box 801 is inserted into a through hole at one side of a precipitation device 1, a filter pressing cabin 802 and a mechanical cabin 803 are sequentially arranged in the filter pressing box 801 from left to right, one side of the filter pressing cabin 802 penetrates through to the side of the filter pressing box 801, the side of the filter pressing box 801 is movably connected with a box door 808 matched with the filter pressing cabin 802, one side of the inner wall of the mechanical cabin 803 is fixedly connected with an electronic telescopic rod 804, one end of the electronic telescopic rod 804 penetrates through the filter pressing cabin 802 and is fixedly connected with one side of a filter pressing plate 805 inside the electronic telescopic rod 804, the bottom surface of the inner wall of the filter pressing box 801 is nested with a filter plate 806 penetrating through to the bottom surface of the inner wall of the filter pressing box 801, the top surface of the inner wall of the filter pressing box 801 is provided with a water inlet 807 penetrating to the top surface of the inner wall of the filter pressing box 801, and the water inlet 807 is matched with a water inlet pipe 9.

In the invention, through holes penetrating to the inner wall of the filtering device 6 are formed on two sides of the filtering device, and the two through holes are respectively matched with the positions of the first switch pipe valve 4 and the second switch pipe valve 5.

In the invention, the bottom of the inner wall of the medicament cabin 103 is provided with a drainage slope, and the top of the feeding pipe 105 is clamped with a sealing cover matched with the feeding pipe.

In the invention, three slots with sequentially communicated sides are formed in the filter box 601 at equal intervals, three filter consumables 603 are respectively inserted into the three slots, and the three filter consumables 603 are respectively PP cotton, MBR filter membrane and activated carbon cotton.

The invention makes the domestic sewage containing grease and sewage treatment agent fully mixed to generate flocculation reaction through the matching of the first electronic pipe valve 104 and the stirring rod 107, the precipitated water is discharged through the first switch pipe valve 4, the sewage is filtered in a physical mode after precipitation, thereby improving the filtering effect, meeting the actual use requirement, controlling the opening state of the first electronic pipe valve 104 and the motor 106 through the liquid level sensor 14, not starting when the water level is not high enough, saving electric power and sewage treatment agent, automatically starting when the water level is high enough, being convenient to use, and needing no manual operation, the sewage enters the filter pressing box 801 through the water inlet pipe 9 and the water inlet 807, filtering solid sundries through the filter plate 806, pushing the filter pressing plate 805 to compress the compressed substances through the electronic expansion rod 804 and then pushing the compressed substances out of the filter pressing box 801, thus being convenient to clean up sundries, and being convenient for later maintenance, cleaning and use, having the advantages of simple structure, low manufacturing cost, easy to install and the like, thereby saving most of the household, reducing the cost of water resources, being convenient for carrying out the secondary sterilization and sterilization of the sewage in the filter box 603, and facilitating the sterilization of the environment pollution caused by the toilet water in the environment, and sterilizing water in the toilet, and sterilizing the toilet water tank 2, and the toilet.

A using method of a domestic sewage treatment device comprises the following steps:

s1, firstly, a water inlet pipe 9 is connected to a kitchen sink pipeline, when sewage is poured, the sewage enters a filter pressing cabin 802 from the water inlet pipe 9 and falls onto a filter screen 806, vegetable food residues are blocked on the filter screen 806, when the filter pressing cabin 802 is full of residues or the filter pressing cabin 802 needs to be cleaned, the filter pressing plate 805 is pushed by an electronic telescopic rod 804 to compress the vegetable food residues, then a box door 808 is opened, the compressed residues are continuously pushed by the filter pressing plate 805 to be completely taken out, and a filter pressing box 801 can be completely taken out and cleaned.

S2, sewage filtered by the filter screen 806 falls into the settling chamber 102, the water level height is sensed by the liquid level sensor 14, whether a sewage treatment agent is added or not is controlled, the first electronic pipe valve 104 is controlled to be opened by the control switch 13, the sewage treatment agent is quantitatively fed into the settling chamber 102, the started motor 106 drives the stirring rod 107 to rotate and stir for a set time, then stirring is stopped, the sewage and the sewage treatment agent are fully mixed to generate flocculation reaction and then stand for settling, sediment can be deposited at the bottom of the settling chamber 102, and the sediment is discharged out of the settling chamber 102 through the second electronic pipe valve 10 after clear water is discharged.

S3, the control switch 13 controls the first switch pipe valve 4 to be opened, so that the precipitated clear water enters the filter box 2 and sequentially passes through the three filter consumables 603 to filter out fine impurities, and the filter box 601 can be periodically detached, cleaned and replaced by the filter consumables 603.

S4, the filtered sewage flows into the sterilization box 3, is sterilized by irradiation of the ultraviolet lamp tube 11, and is used when the sewage needs to be used or reaches the detection height of the liquid level sensor 14, and the third electronic tube valve 12 is opened to discharge purified water;

s5, when self-cleaning is needed, only two electromagnetic valves need to be opened in a periodic time-sharing mode, so that the flow of water flow is changed periodically, the PP cotton and the activated carbon cotton are impacted up and down, the PP cotton and the activated carbon cotton can be squeezed transversely while being overstocked up and down by virtue of the bulges arranged on the PP cotton and the activated carbon cotton, the PP cotton and the activated carbon cotton can be self-cleaned, and the taking-out and replacement period is greatly delayed.

Claims (8)

1. The utility model provides a domestic sewage treatment plant, includes the sediment device, its characterized in that: one side of the precipitation device is fixedly connected with a filter box, the other side of the filter box is fixedly connected with a sterilization box, one side, opposite to the inner wall of the filter box, is respectively nested with a first switch pipe valve matched with the precipitation device and a second switch pipe valve matched with the sterilization box, the tops of the filter box and the sterilization box are respectively inserted with a filter device and a second sealing cover, the bottom of the second sealing cover is fixedly connected with an ultraviolet lamp tube, the ultraviolet lamp tube is inserted in the sterilization box, a through hole at one side of the precipitation device is inserted with a filter pressing device, the top surface of the precipitation device is fixedly connected with a water inlet pipe communicated with the interior of the precipitation device, one side of the sterilization box is fixedly connected with a third electronic pipe valve communicated with the interior of the sterilization box, one side of the precipitation device is fixedly connected with a control switch, and one sides of the inner walls of the sterilization box and the precipitation device are both fixedly connected with liquid level sensors;

wherein filter equipment includes the filter cartridge, every filter cartridge includes the different types of filtration consumptive material of three vertical direction parallel arrangement, wherein be provided with the baffle between the adjacent filtration consumptive material, the top and the bottom of adjacent baffle respectively with filter cartridge box body between the top and the bottom reserve have an opening, an electromagnetic switch valve is installed to this opening part, rivers are horizontal S type flow between three baffle, wherein be provided with a plurality of archs on being close to the PP cotton on the baffle plate body and the active carbon cotton distolateral, the on-off state of time sharing switching two electromagnetic switch valves under the self-cleaning mode.

2. A domestic sewage treatment apparatus according to claim 1 wherein: the utility model discloses a deposit the filter tank, including the filter tank, deposit the device and include the box, and box fixed connection is in one side of rose box, set up precipitation cabin and medicament cabin in the box, and the bottom in medicament cabin and the top fixed connection who deposits the cabin, the fixed interlude in bottom of medicament cabin inner wall has first electron tube valve, and inside the precipitation cabin that the bottom of first electron tube valve runs through the medicament cabin and extend to the below, the dog-house of the top fixedly connected with and the medicament cabin inside intercommunication of box throws the material pipe, one side fixedly connected with motor of box, one side swing joint that the precipitation cabin inner wall is relative has the puddler, and the one end of puddler runs through the precipitation cabin and rather than the output fixed connection of the motor of avris, the top surface and the bottom surface of box respectively fixedly connected with deposit the inlet tube and the second electron tube valve of cabin inside intercommunication, the filter-pressing device alternates in the precipitation cabin, and one side joint of filter-pressing device and one side of precipitation cabin inner wall.

3. A domestic sewage treatment apparatus according to claim 1 wherein: the filter box is inserted in the filter box, and a first sealing cover is clamped at the top of the filter box.

4. A domestic sewage treatment apparatus according to claim 1 wherein: the filter-pressing device includes the filter-pressing box, and the filter-pressing box is pegged graft in the logical mouth department of sediment device one side, filter-pressing cabin and machinery cabin have from left to right been seted up in proper order in the filter-pressing box, one side of filter-pressing cabin runs through to the avris of filter-pressing box, and the avris swing joint of filter-pressing box has the chamber door with filter-pressing cabin looks adaptation, and one side fixedly connected with electron telescopic link of machinery cabin inner wall, the one end of electron telescopic link runs through to the filter-pressing cabin and rather than one side fixed connection of the filter-pressing board of inside, the bottom surface nestification of filter-pressing box inner wall has the filter plate that runs through to its bottom surface, and the water inlet that runs through to its top surface is seted up to the top surface of filter-pressing box inner wall, and water inlet and inlet tube looks adaptation.

5. A domestic sewage treatment apparatus according to claim 1 wherein: through holes penetrating through the inner wall of the filtering device are formed in the two sides of the filtering device, and the two through holes are matched with the positions of the first switch pipe valve and the second switch pipe valve respectively.

6. A domestic sewage treatment apparatus according to claim 2 wherein: the bottom of the inner wall of the medicament cabin is provided with a drainage slope, and the top of the feeding pipe is clamped with a sealing cover matched with the feeding pipe.

7. A domestic sewage treatment apparatus according to claim 3 wherein: the inside equidistance of filter cartridge sets up the slot that three avris communicates in proper order, and three filtration consumptive material pegs graft respectively in three slot, and three filtration consumptive material is PP cotton, MBR filtration membrane and active carbon cotton respectively.

8. The use method of a domestic sewage treatment apparatus according to claim 1, comprising the steps of:

s1, at first with inlet tube connection to kitchen sink pipeline, when pouring sewage, sewage gets into the filter-pressing cabin from the inlet tube in, falls on the filter screen, and vegetables food residue is blockked on the filter screen, when filter-pressing cabin interior residue is amassed or need clear up the filter-pressing cabin, promotes the filter-pressing board through the electron telescopic link and compresses vegetables food residue, opens the chamber door again, makes the residue after the compression continue to be promoted to taking out the residue completely by the filter-pressing board, and the filter-pressing box can take out completely and wash.

S2, sewage filtered by the filter screen falls into the settling chamber, the water level height is sensed by the liquid level sensor, whether a sewage treatment agent is added or not is controlled, the first electronic tube valve is controlled to be opened by the control switch, the sewage treatment agent is quantitatively put into the settling chamber, the started motor drives the stirring rod to rotate and stir for a set time, then stirring is stopped, the sewage and the sewage treatment agent are fully mixed to generate flocculation reaction and then are stood for settling, precipitates can be deposited at the bottom of the settling chamber, and the precipitates are discharged out of the settling chamber through the second electronic tube valve after clear water is discharged.

S3, the first switch pipe valve is controlled to be opened through the control switch, the precipitated clear water part enters the filter box and sequentially passes through the three filter consumables to filter out fine impurities, and the filter box can be periodically detached, cleaned and replaced with the filter consumables.

S4, enabling the filtered sewage to flow into a sterilization box, sterilizing by irradiating an ultraviolet lamp tube, and opening a third electronic tube valve to discharge purified water when the sewage needs to be used or reaches the detection height of a liquid level sensor;

s5, when self-cleaning is needed, only two electromagnetic valves need to be opened in a periodic time-sharing mode, so that the flow of water flow is changed periodically, the PP cotton and the activated carbon cotton are impacted up and down, the PP cotton and the activated carbon cotton can be squeezed transversely while being overstocked up and down by virtue of the bulges arranged on the PP cotton and the activated carbon cotton, the PP cotton and the activated carbon cotton can be self-cleaned, and the taking-out and replacement period is greatly delayed.

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