CN212581719U

CN212581719U - Small-size family formula sewage treatment unit

Info

Publication number: CN212581719U
Application number: CN202020879546.XU
Authority: CN
Inventors: 彭焘
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-23
Filing date: 2020-05-23
Publication date: 2021-02-23
Anticipated expiration: 2030-05-23

Abstract

The utility model relates to the field of environmental protection, in particular to a small household domestic sewage treatment device, which comprises a sand setting area, an anoxic area, an aerobic area, an artificial wetland, a deep filtering area and a water collecting area, wherein the sand setting area is positioned above the anoxic area, and the anoxic area is adjacent to the aerobic area; the artificial wetland is positioned above the aerobic zone, the side surfaces of the artificial wetland are respectively adjacent to the sand settling zone and the water collecting zone, and the deep filtering zone is positioned at the upper part of the water collecting zone. The utility model discloses in, each module can clear up the maintenance alone, and easy operation, when satisfying sewage purification, has saved investment cost, area and working costs greatly, and the rural population of abundant adaptation is comparatively dispersed, and no sewage pipe network can't realize sewage centralized processing's characteristics, the domestic sewage accessible of every family daily production the device is handled on the spot, discharges on the spot.

Description

Small-size family formula sewage treatment unit

Technical Field

The patent relates to the field of environmental protection, in particular to a small household domestic sewage treatment device.

Background

Domestic sewage contains a large amount of organic matters, nitrogen, phosphorus and other nutrient substances, and is considered as pollutants relative to natural water. The domestic sewage is stable in water quality, turbid, deep in color, accompanied by odor, slightly alkaline, generally free of toxic substances, and contains a large amount of bacteria, viruses and parasitic ova.

The activated sludge treatment process is generally used for large-scale domestic sewage treatment systems, and different treatment processes such as an oxidation ditch process, an SBR process, a biological rotating disk, an MBR and the like are adopted according to the water quality requirements of inlet and outlet water. The main principle is that pollutants in sewage are removed through the suction action of microorganisms in activated sludge. The system mainly has the following problems:

(1) the traditional process mainly aims at large-scale sewage treatment, needs a matched sewage pipe network, occupies a large area, is indispensable for each treatment structure, and needs special personnel to operate and maintain;

(2) for daily treatment scale 5m³The following domestic sewage treatment has high investment cost, cannot adapt to the time change characteristics of single domestic drainage, is difficult to maintain an activated sludge system, and cannot ensure the water quality of treated effluent.

The land treatment method mainly adopts an artificial wetland system, usually adopts a vertical flow or surface flow mode, and has the defects of large occupied area and small sewage load; in winter, the surface in the north can be frozen, wetland plants wither, and the treatment effect is seriously reduced; mosquitoes and flies can be bred in summer, and odor is accompanied; the sewage is blocked due to the hard shell formed by the biofilm, so that the sewage cannot be purified, the service life of the artificial wetland is extremely short, and the seasonal performance difference is large; and the artificial wetland has higher requirements on the quality of inlet water, and the content of pollutants cannot be too high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a small-size family formula sewage treatment unit to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a small-size family formula sewage treatment unit, includes grit zone, anoxic zone, aerobic zone, constructed wetland, degree of depth filtering zone, water catch bowl, the grit zone is located the top in anoxic zone, anoxic zone and aerobic zone are adjacent between, constructed wetland is located the top in aerobic zone, constructed wetland's side is adjacent with grit zone, water catch bowl respectively, degree of depth filtering zone is located the upper portion in water catch bowl.

Furthermore, the upper part and the bottom of the anoxic zone are respectively provided with an upper opening and a lower opening which are communicated with the aerobic zone.

Furthermore, the grit zone comprises a grid and a grit water tank, the grid is communicated with the residential sewage outlet, the grid is positioned on the upper portion of the grit water tank, an overflow port is formed in the upper portion of the grit zone and communicated with the artificial wetland, and the grid and the grit water tank are movable.

Furthermore, a microporous aeration pipe is laid at the bottom of the aerobic zone.

Furthermore, the constructed wetland adopts a movable type fence frame structure arranged above the aerobic zone, wetland fillers with microorganism carriers are filled in the fence frame, the wetland fillers are soaked in the sewage in the aerobic zone, the surface layer of the wetland fillers is exposed out of the liquid level and is planted with wetland plants, and a water outlet is arranged at the position of the liquid level below the surface layer of the wetland fillers.

Furthermore, a suspended packing box is arranged in the depth filtering area, a partition plate is arranged in the packing box and used for longitudinally separating the packing box and communicating the bottom of the packing box, and a zigzag overflow weir is arranged at the upper part of the packing box and communicated with the water collecting area.

Furthermore, the water collecting area is installed beside the artificial wetland in a suspension mode, and a water tank cover plate is arranged at the top of the water collecting area.

Furthermore, an equipment room is arranged below the water collecting area, a ventilating pipe is arranged to be communicated with the ground, a detachable waterproof cover plate is arranged at the top of the equipment room, and a fan connected with the microporous aeration pipe is arranged in the equipment room.

Furthermore, a mud guard is arranged below the sand setting water tank, and a spring is arranged at one end of the mud guard to keep the mud guard at a horizontal position.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the device has the advantages that the device meets the requirements of sewage purification treatment, greatly saves investment cost, floor area and operating cost, is fully suitable for the characteristics of dispersed rural population, no sewage pipe network and incapability of realizing sewage centralized treatment, and domestic sewage generated by each household every day can be treated and discharged on site through the device;

2. the air blower is started and closed at regular time without the operation of a specially-assigned person, and has no cultural level requirement;

3. the device is small and exquisite, all modules are prefabricated, and the field can be directly lapped, so that the engineering quantity is small;

4. each module can be cleaned and maintained independently, and the operation is simple.

Drawings

Fig. 1 is a schematic plan view of the present invention;

FIG. 2 is a schematic sectional view taken along line A-A of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line B-B of the present invention;

fig. 4 is a schematic structural diagram of the hurdle frame 704 of the present invention.

In the figure: 1-a sand setting zone; 101-an overflow port; 102-a grid; 103-a sand setting water tank; 104-a mudguard; 105-a spring; 2-anoxic zone; 201-upper opening; 202-lower opening; 3-an aerobic zone; 301-microporous aeration pipe; 4-equipment room; 401-a fan; 402-waterproof cover plate; 403-a breather pipe; 5-a depth filtration zone; 501-a stuffing box; 502-a separator; 503-overflow weir; 6-a water collecting area; 601-water tank cover plate; 7-artificial wetland; 701-wetland packing; 702-a water outlet; 703-wetland plants; 704-column frame.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

a small-sized family domestic sewage treatment device comprises a sand setting zone 1, an anoxic zone 2, an aerobic zone 3, an artificial wetland 7, a deep filtration zone 5, a water collection zone 6 and an equipment room 4, wherein the sand setting zone 1 is positioned above the anoxic zone 2, the sand setting zone 1 is connected with a residential sewage discharge outlet and comprises a mesh-shaped grid 102 and a sand setting water tank 103, the grid 102 intercepts sundries in sewage, then the sewage overflows from the sand setting water tank 103 and enters the anoxic zone 2, and the grid 102 and the sand setting water tank 103 are movable and can be taken out for cleaning and replacement; a mud guard 104 is arranged below the sand setting water tank 103, the mud guard 104 is fixed by a low damping spring 105, so that the mud guard 104 is kept at a horizontal position, when certain sewage is collected above the mud guard 104, the mud guard is automatically opened under the pressure generated by the weight of the sewage, and the sewage enters the anoxic zone 2; the sand setting water tank 103 is mainly used for preventing solid impurities such as fine sand grains in the sewage from entering the anoxic zone 2 and has the function of regulating water quantity; the upper part of the sand setting area 1 is provided with an overflow port 101, and when the instantaneous drainage is large and the inflow area is stagnant, the sewage can directly enter the artificial wetland 7 through the overflow port 101.

The anoxic zone 2 is adjacent to the aerobic zone 3, the upper part and the bottom of the anoxic zone 2 are respectively provided with an upper opening 201 and a lower opening 202 which are communicated with the aerobic zone 3, and sewage and activated sludge can circularly flow between the anoxic zone 2 and the aerobic zone 3; a microporous aeration pipe 301 is laid at the bottom of the aerobic zone 3, and oxygen is provided for microorganisms in the aerobic zone 3 through a fan 401; the aerobic zone 3 is filled with microorganism carrier fiber filler, which can enrich the types and the quantity of microorganisms, and strengthen the stability of the system and the nitrogen and phosphorus removal effect.

The constructed wetland 7 is positioned above the aerobic zone 3, the side surface of the constructed wetland 7 is respectively adjacent to the sand settling zone 1 and the deep filtration zone 5, a fence frame 704 of the constructed wetland is made of stainless steel mesh and is suspended at the upper part of the aerobic zone 3, wetland fillers 701 with different varieties and particle sizes are filled in the fence frame 704 and are directly soaked in the sewage of the aerobic zone 3, wetland plants 703 are planted on the surface layer exposed out of the liquid level, and the nitrogen, phosphorus and other nutrient components in the sewage are further removed through the adsorption of the wetland fillers 701 and the absorption of the root system of the wetland plants 703.

The water collecting area 6 is adjacent to the artificial wetland 7, the depth filtering area 5 is positioned at the upper part of the water collecting area 6, the depth filtering area 5 is arranged close to the artificial wetland 7, and the water collecting area and the artificial wetland can be integrally and freely taken out by adopting a suspension type. A stuffing box 501 filled with stuffing is arranged in the deep filtering area 5, and a partition plate 502 which is longitudinally separated from the bottom is arranged in the stuffing box 501, so that the water passing time is prolonged, and the sewage is further purified; the effluent flows into the water collection area 6 through the zigzag overflow weir 503, the water collection area 6 has a certain water collection volume, and the collected water can be used for sprinkling roads and vegetable fields or directly discharged.

An equipment room 4 is arranged below the water collecting area 6, a detachable waterproof cover plate 402 is arranged at the top of the equipment room 4, a fan 401 connected with the microporous aeration pipe 301 is arranged in the equipment room 4, an aeration pipe 403 is arranged in the equipment room 4 and communicated with the ground, and the fan 401 runs at regular time according to the set time.

The process flow is that residential sewage is connected into a sand setting zone 1, the residential sewage is filtered by a grating 102 and flows into a sand setting water tank 103, then enters an anoxic zone 2, a fan 401 is started at regular time, oxygen is provided for microorganisms in the aerobic zone 3 through aeration of a microporous aeration pipe 301 at the bottom in the aerobic zone 3, the sewage circularly flows between the aerobic zone 3 and the anoxic zone 2, meanwhile, nutrient components such as nitrogen, phosphorus and the like in the sewage are further removed through adsorption of wetland fillers 701 and absorption of root systems of wetland plants 703, the primarily purified water flows into a deep filtration zone 5 again, and the primarily purified water flows into a water collection zone 6 for other purposes after being filtered again.

Compared with the conventional activated sludge process, the upper part of the anoxic zone is provided with a mudguard, and the upper part of the aerobic zone is provided with the separation and adsorption of the artificial wetland module, so that the odor generated in the sewage treatment process can be eliminated. Due to the special water outlet mode, a secondary sedimentation tank is not required to be arranged, and the outlet water is subjected to multiple filtration. The whole device is arranged underground, and can isolate the noise generated during aeration. The aerobic zone is aerated at the drainage peak time every day to provide oxygen for decomposing and absorbing various organic matters and nutrient components by microorganisms, activated sludge can enter the anoxic zone through the channels at the bottoms of the aerobic zone and the anoxic zone, and sewage can circulate through the channels at the upper parts of the aerobic zone and the anoxic zone. According to the characteristics of the water discharge of each household, the fan is opened and closed at regular time, the required aeration quantity is small, the power consumption of the corresponding fan is small, the operation cost is greatly reduced, and only the power-on is required to be kept without personnel operation.

Compared with the conventional artificial wetland process, the artificial wetland in the application does not need to be subjected to anti-seepage treatment and does not need to be provided with a water distributor. The artificial wetland module is an independent structure and can be directly taken out as required to maintain and replace wetland plants and wetland fillers; because the water inflow of the artificial wetland is in a bottom-to-top overflowing mode, only sewage can enter the wetland filler layer, and the problem that the wetland filler is blocked by sludge is avoided; the water outlet is positioned below the surface layer of the wetland filler, so that the surface of the wetland is kept dry, and the problems of breeding of mosquitoes and flies, generation of odor and the like do not exist.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a small-size family formula sewage treatment unit, includes sand setting district (1), anoxic zone (2), aerobic zone (3), constructed wetland (7), degree of depth filtering area (5), water collection zone (6), its characterized in that: the sand setting zone (1) is located above the anoxic zone (2), the anoxic zone (2) is adjacent to the aerobic zone (3), the artificial wetland (7) is located above the aerobic zone (3), the side surfaces of the artificial wetland (7) are adjacent to the sand setting zone (1) and the water collection zone (6) respectively, and the depth filtering zone (5) is located on the upper portion of the water collection zone (6).

2. The small-sized domestic sewage treatment apparatus according to claim 1, wherein: the upper part and the bottom of the anoxic zone (2) are respectively provided with an upper opening (201) and a lower opening (202) which are communicated with the aerobic zone (3).

3. The small-sized domestic sewage treatment apparatus according to claim 2, wherein: the sand setting area comprises a grid (102) and a sand setting water tank (103), the grid (102) is communicated with a residential sewage outlet, the grid (102) is located on the upper portion of the sand setting water tank (103), an overflow port (101) is further arranged on the upper portion of the sand setting area (1), the overflow port (101) is communicated with the artificial wetland (7), and the grid (102) and the sand setting water tank (103) are movable.

4. A small-sized domestic sewage treatment apparatus according to claim 3, wherein: and a microporous aeration pipe (301) is laid at the bottom of the aerobic zone (3).

5. The small-sized domestic sewage treatment apparatus according to claim 4, wherein: constructed wetland (7) adopt movable fence frame (704) structure set up in the top in aerobic zone (3), the wetland that has the microorganism carrier in fence frame (704) packs (701), wetland packs (701) soak in aerobic zone (3) sewage, the surface layer of wetland packing (701) exposes the liquid level and is planted wetland plant (703), the liquid level position of wetland packing (701) top layer below is equipped with delivery port (702).

6. The small-sized domestic sewage treatment apparatus according to claim 5, wherein: the deep filtration area (5) is provided with a suspended packing box (501), a partition plate (502) which longitudinally partitions the packing box (501) and communicates the bottom of the packing box is arranged in the packing box (501), and a zigzag overflow weir (503) which is communicated with the water collection area (6) is arranged at the upper part of the packing box (501).

7. The small-sized domestic sewage treatment apparatus according to claim 6, wherein: the water collecting area (6) is mounted beside the artificial wetland (7) in a suspension mode, and a water tank cover plate (601) is arranged at the top of the water collecting area (6).

8. The small-sized domestic sewage treatment apparatus according to claim 7, wherein: the lower part of catchment area (6) is provided with equipment room (4), equipment room (4) are equipped with breather pipe (403) and communicate with each other with ground, the top of equipment room (4) is equipped with detachable waterproof apron (402), be equipped with in equipment room (4) with fan (401) that micropore aeration pipe (301) are connected.

9. A small-sized domestic sewage treatment apparatus according to claim 3, wherein: a mud guard (104) is arranged below the sand setting water tank (103), and a spring (105) is arranged at one end of the mud guard (104) to keep the mud guard (104) at a horizontal position.