Concave sleeve type domestic sewage courtyard absorption and resource recycling system

Abstract

The invention discloses an inner concave sleeve type domestic sewage courtyard consumption and resource recycling system, and relates to the technical field of environmental protection. Comprising a three-grid septic tank, a multi-stage composite filler percolation system, a water storage tank, a water distribution tank and a rhizosphere water distribution system which are connected in sequence, the multi-stage composite filler percolation system comprises a pit located on the ground, a multi-layer composite filler layer and an earth surface planting layer, the composite filler layer adopts a modular structure, the modular structure comprises a box body with an opening in the upper part, corresponding filler is filled in the box body, a boss matched with the opening of the box body is arranged at the bottom of the box body, and a water leakage hole is formed in the bottom of the box body; the earth surface planting layer adopts backfill soil; and a blow-off pipe of the house is connected with the three-grid septic tank. Compared with a traditional percolation system, each layer of the multistage composite filler percolation system is an independent modular functional layer, construction is not needed, the multistage composite filler percolation system can be directly used and installed, daily maintenance is not needed, and the functional module layers can be replaced regularly.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection, and in particular to an inwardly concave sleeve type domestic sewage courtyard disposal and resource recycling system. Background Art

[0002] The domestic sewage courtyard disposal system is an indispensable technology in the treatment and utilization of rural domestic sewage. At present, with the advancement of environmental protection technology, the domestic sewage courtyard disposal technology has gradually matured, and more and more residents are willing to participate in the practice of domestic sewage courtyard disposal. Although courtyard disposal technology has been applied in some areas, the overall penetration rate is still low, especially in remote and economically underdeveloped rural areas. The water quality conditions, climate characteristics, soil types, etc. in different regions vary greatly, resulting in some technologies may not be suitable for all regions, and targeted selection and optimization of technologies are needed. The daily operation and maintenance of the domestic sewage courtyard disposal system requires professional knowledge and technical support, but in rural areas, professional talents and operation and maintenance capabilities are relatively lacking. Summary of the invention

[0003] The main purpose of the present invention is to provide an inwardly concave and adaptable domestic sewage courtyard disposal and resource recycling system to solve the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the present invention provides an inward-concave adaptable domestic sewage courtyard disposal and resource reuse system, comprising a three-compartment septic tank, a multi-stage composite filler infiltration system, a water storage tank, a water distribution tank and a rhizosphere water distribution system connected in sequence; the multi-stage composite filler infiltration system comprises a pit located on the ground, and a multi-layer composite filler layer arranged in the pit and a surface planting layer arranged on the top of the multi-layer composite filler layer, the composite filler layer adopts a modular structure, the modular structure comprises a box body with an upper opening, the box body is filled with corresponding fillers, the bottom of the box body is provided with a boss matching the opening of the box body, and the bottom of the box body is provided with a leakage hole; the surface planting layer adopts backfill soil; the sewage pipe of the house is connected to the three-compartment septic tank.

[0005] Furthermore, a sewage suction pump is provided in the three-compartment septic tank, and the water outlet of the sewage suction pump is connected to the composite filler layer located on the top layer through a first water outlet pipe; one side of the composite filler layer located on the bottom layer is connected to the water storage tank through a second water outlet pipe; a water suction pump is provided in the water storage tank, and the water outlet of the water suction pump is connected to the water distribution tank through a third water outlet pipe; a water distribution pump is provided in the water distribution tank, and the water outlet of the water distribution pump is connected to the rhizosphere water distribution system through a fourth water outlet pipe, and the rhizosphere water distribution system is located above the surface planting layer.

[0006] Furthermore, each composite filler layer is formed by splicing a plurality of modular structures, and water leakage holes are arranged on the four side walls of the box body.

[0007] Furthermore, the multi-layer composite filler layer is respectively a composite sand material layer, a porous expanded clay filler layer, a straw activated biochar filler layer, a mature cow dung filler layer and a charcoal-burned coarse sand filter material layer arranged in sequence from bottom to top.

[0008] Furthermore, the filler in the carbon-burned coarse sand filter material layer is coarse sand that has been carbon-burned at 600-1000 degrees.

[0009] Furthermore, a replaceable filter brush structure is provided at the outlet of the three-compartment septic tank.

[0010] Furthermore, the rhizosphere water distribution system includes a pipe body and a plurality of nozzles arranged on the pipe body.

[0011] Furthermore, the box body is made of PVC material.

[0012] The present invention has the following beneficial effects:

[0013] The multi-stage composite filler infiltration system of the present invention is innovatively designed as an inward-concave application type. Compared with the traditional infiltration system, each layer is an independent modular functional layer, which does not require construction and can be directly applied and installed. It can be freely matched and combined according to the user's sewage generation, purification requirements, and courtyard area. No daily maintenance is required, and the functional module layer can be replaced regularly according to the life of the filler. The entire system does not require complex construction procedures and realizes modular operation. Farmers can complete the installation by referring to the instructions. It not only realizes the on-site disposal of farmers' domestic sewage, but also realizes the reuse of effluent to form a self-circulating system. No professional and technical personnel are required for management and maintenance, saving later maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of an inwardly concave and adaptable domestic sewage courtyard disposal and resource recycling system of the present invention.

[0015] Figure 2 It is a top view of the modular structure of an inwardly concave adaptable domestic sewage courtyard disposal and resource recycling system of the present invention.

[0016] Figure 3 It is a modular structural cross-sectional view of an inwardly concave adaptable domestic sewage courtyard disposal and resource recycling system of the present invention.

[0017] Among them, 1-house; 2-sewage pipe; 3-three-compartment septic tank; 4-sewage suction pump; 5-first outlet pipe; 6-pit; 7-composite sand layer; 8-porous expanded clay filler layer; 9-straw activated biochar filler layer; 10-matured cow dung filler layer; 11-charcoal-burned coarse sand filter layer; 12-surface planting layer; 13-second outlet pipe; 14-storage tank; 15-water suction pump; 16-third outlet pipe; 17-distribution tank; 18-distribution pump; 19-fourth outlet pipe; 20-root water distribution system; 21-box; 22-filler; 23-boss; 24-leakage hole. DETAILED DESCRIPTION

[0018] In order to achieve the above-mentioned purpose and effect, the technical means and structures adopted by the present invention are described in detail with reference to the accompanying drawings for the features and functions of the preferred embodiments of the present invention.

[0019] like Figure 1-3As shown, the present invention provides an inward-recessed adaptable domestic sewage courtyard disposal and resource recycling system, comprising a three-compartment septic tank 3, a multi-stage composite filler infiltration system, a water storage tank 14, a water distribution tank 17 and a rhizosphere water distribution system 20 connected in sequence; the three-compartment septic tank is mainly used for pretreatment of domestic sewage, the outlet of the three-compartment septic tank 3 is structurally optimized, and a replaceable filter brush structure is added to filter the effluent of the three-compartment septic tank 3 to avoid clogging the rear-end multi-stage composite filler infiltration system, and the multi-stage composite filler infiltration system is used for purifying domestic sewage; the water storage tank 14 is mainly used for storing the effluent of the multi-stage composite filler infiltration system, which can be used to monitor the water quality of the effluent and can be pumped to the water distribution tank 17 by the water suction pump 15 at a fixed time and quantity; the water distribution tank 17 is mainly used for the reuse and distribution of the purified effluent of the system, according to the planting The water body is pumped to the rhizosphere water distribution system 20 through the water distribution pump 18 according to the needs of crop growth; the rhizosphere water distribution system 20 is mainly used for quantitative transportation and distribution of water reuse to the surface planting layer 12; the multi-stage composite filler infiltration system includes a pit 6 located on the ground, a multi-layer composite filler layer arranged in the pit 6 and a surface planting layer 12 arranged on the top of the multi-layer composite filler layer, the composite filler layer is innovatively designed as an inward concave application structure, each layer is a modular structure, the modular structure includes a box body 21 with an upper opening, the box body 21 is made of PVC material, the box body 21 is equipped with a corresponding filler 22, the bottom of the box body 21 is provided with a boss 23 matching the opening of the box body 21, and the bottom of the box body 21 is provided with a leak hole 24; this modular structure does not require construction, and can be directly applied and installed. According to the amount of sewage generated by the user, purification requirements, and courtyard area, it can be freely matched and combined. No daily maintenance is required, and the composite filler layer can be replaced regularly according to the life of the filler. The surface planting layer 12 is made of backfill soil, and is mainly used for planting vegetables, flowers and plants in the courtyard according to the regional environmental characteristics and the habits of farmers, which can improve the living environment; the sewage pipe 2 of the house 1 is connected to the three-compartment septic tank 3, and a sewage suction pump 4 is arranged in the three-compartment septic tank 3, and the water outlet of the sewage suction pump 4 is connected to the composite filler layer located on the top layer through the first outlet pipe 5; one side of the composite filler layer located on the bottom layer is connected to the water storage tank 14 through the second outlet pipe 13; a suction pump 15 is arranged in the water storage tank 14, and the water outlet of the suction pump 15 is connected to the water distribution tank 17 through the third outlet pipe 16, and a water distribution pump 18 is arranged in the water distribution tank 17, and the water outlet of the water distribution pump 18 is connected to the rhizosphere water distribution system 20 through the fourth outlet pipe 19, and the rhizosphere water distribution system 20 is located above the surface planting layer 12.

[0020] The domestic sewage of farmers enters the three-compartment septic tank 3 through the sewage pipe 2. After harmless pretreatment, it enters the multi-stage composite filler infiltration system to purify the domestic sewage. The purified water enters the water storage tank 14. The water can be pumped to the distribution tank 17 in a regular and quantitative manner through the water suction pump 15. Then, according to the growth needs of the crops, the water body is pumped to the rhizosphere water distribution system 20 through the water distribution pump 18. It is mainly used for the quantitative transportation and reuse of nutrients and water during the growth of crops in the surface planting layer 12.

[0021] In another embodiment, each composite filler layer is formed by splicing a plurality of modular structures, and water leakage holes 24 are arranged on the surrounding side walls of the box body 21 .

[0022] In another embodiment, the multi-layer composite filler layer is respectively arranged from bottom to top in sequence as a composite sand layer 7, a porous ceramsite filler layer 8, a straw activated biochar filler layer 9, a mature cow dung filler layer 10 and a charcoal-burned coarse sand filter layer 11. The charcoal-burned coarse sand filter layer 11 is mainly used for the removal of organic pollutants in sewage. Compared with conventional coarse sand, the surface of the coarse sand after charcoal burning will produce a microporous structure, increase its specific surface area, improve adsorption capacity, and also improve soil fertility. The mature cow dung filler layer 10 is mainly used for the removal efficiency of COD, total phosphorus, total nitrogen and ammonia nitrogen in sewage, and can also provide the microorganisms in the sewage treatment process with the nutrients required for growth, and improve the activity and reproduction capacity of the microorganisms. The straw activated biochar filler layer 9 is mainly used to adsorb organic pollutants in water, remove suspended matter, adjust pH value, and can also improve soil structure and improve soil water retention capacity. The porous ceramsite filler layer 8 is mainly used to enhance the removal efficiency of pollutants such as organic matter and ammonia nitrogen in sewage, and the composite sand layer 7 is mainly used for the rear-end purification of the system effluent to improve the effluent water quality.

[0023] In another embodiment, the rhizosphere water distribution system 20 includes a pipe body and a plurality of nozzles disposed on the pipe body, and the crops on the surface planting layer 12 are watered through the nozzles.

[0024] The above descriptions are only preferred embodiments of the present invention, not all embodiments. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, belong to the protection scope of the present invention.

Claims

1. A concave-type domestic sewage yard disposal and resource recycling system, characterized in that: It includes a three-compartment septic tank, a multi-stage composite filler infiltration system, a water storage tank, a water distribution tank and a rhizosphere water distribution system connected in sequence; the multi-stage composite filler infiltration system includes a pit located on the ground, a multi-layer composite filler layer arranged in the pit and a surface planting layer arranged on the top of the multi-layer composite filler layer, the composite filler layer adopts a modular structure, the modular structure includes a box body with an upper opening, the box body is filled with corresponding fillers, the bottom of the box body is provided with a boss matching the opening of the box body, and the bottom of the box body is provided with a leakage hole; the surface planting layer adopts backfill soil; the sewage pipe of the house is connected to the three-compartment septic tank.

2. The concave-type domestic sewage yard disposal and resource recycling system according to claim 1 is characterized in that: A suction pump is provided in the three-compartment septic tank, and the water outlet of the suction pump is connected to the composite filler layer on the top layer through a first outlet pipe; one side of the composite filler layer on the bottom layer is connected to the water storage tank through a second outlet pipe; a suction pump is provided in the water storage tank, and the water outlet of the suction pump is connected to the water distribution tank through a third outlet pipe; a water distribution pump is provided in the water distribution tank, and the water outlet of the water distribution pump is connected to the rhizosphere water distribution system through a fourth outlet pipe, and the rhizosphere water distribution system is located above the surface planting layer.

3. The concave-type domestic sewage yard disposal and resource recycling system as claimed in claim 1 or 2, characterized in that: Each composite filler layer is formed by splicing a plurality of modular structures, and water leakage holes are arranged on the four side walls of the box body.

4. The concave-type domestic sewage yard disposal and resource recycling system as claimed in claim 3 is characterized in that: The multi-layer composite filler layers are respectively a composite sand layer, a porous expanded clay filler layer, a straw activated biochar filler layer, a mature cow dung filler layer and a charcoal-burned coarse sand filter layer, which are arranged in sequence from bottom to top.

5. The concave-type domestic sewage yard disposal and resource recycling system as claimed in claim 4 is characterized in that: The filler in the carbon-burned coarse sand filter layer is coarse sand that has been carbon-burned at 600-1000 degrees.

6. The concave-type domestic sewage yard disposal and resource recycling system as claimed in claim 1, characterized in that: A replaceable filter brush structure is provided at the outlet of the three-compartment septic tank.

7. The concave-type domestic sewage yard disposal and resource recycling system as claimed in claim 1, characterized in that: The rhizosphere water distribution system comprises a pipe body and a plurality of nozzles arranged on the pipe body.

8. The concave-type domestic sewage yard disposal and resource recycling system as claimed in claim 1, characterized in that: The box body is made of PVC material.

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