CN216472712U - Soil infiltration sewage treatment plant with unpowered drainage function of moisturizing - Google Patents

Abstract

The utility model provides a soil infiltration sewage treatment device with unpowered waterlogging drainage and moisturizing functions, which can drain and collect redundant water through inclined pipes during waterlogging; during drought, water is supplied by utilizing the self-absorption property of the water-absorbing material without power, so that the low-cost adjustment of the soil humidity and the high-efficiency operation of a soil infiltration system are realized.

Description

Soil infiltration sewage treatment plant with unpowered drainage function of moisturizing

Technical Field

The utility model belongs to the technical field of sewage carbon neutralization land treatment, and particularly relates to a soil infiltration sewage treatment device with unpowered waterlogging draining and moisturizing functions. The organic pollutants are treated mainly through soil and the root system of the surface plant, power and energy consumption is not needed in the treatment process, and carbon emission is zero; and the plants absorb carbon dioxide to generate carbon sink effect, so that the carbon neutralization treatment of rural domestic sewage is realized, the policy trend is met, and the application prospect is wide.

Background

The soil infiltration system is a type of sewage land treatment technology, and the system is used for dosing sewage into a soil layer which has a certain structure, a certain depth from the ground and good permeability, enabling the sewage to diffuse around through capillary infiltration and soil infiltration, and enabling the sewage to be purified through processes of filtration, precipitation, adsorption, biodegradation and the like. It is a small-scale sewage treatment technology combining natural ecological purification and artificial technology.

The soil infiltration sewage treatment system is a dispersed sewage treatment technology based on the ecological principle and has the advantages of stable effluent quality, small influence of seasons, low operation cost and the like. The process of treating sewage by using the subsurface infiltration system is also a process of recycling sewage, nutrient substances in the sewage are absorbed by surface landscape plants, and effluent can be recycled. Based on the advantages, the soil infiltration sewage treatment system has better application prospect in the field of rural distributed sewage treatment.

Some uncontrollable factors also exist in the ecological treatment system. The system is usually placed in an outdoor open environment, and the water load is not easy to control; due to seasonal climate in northern areas, rainfall difference is large all the year round, a common sudden infiltration system cannot keep relatively stable soil humidity, and operation treatment efficiency is low.

After investigation, rural domestic sewage treatment faces the problems of low operating capital and low water quantity for a long time and is not suitable for adopting a centralized treatment mode. The traditional distributed ecological treatment process (such as soil infiltration) still has the problems of low operation efficiency and difficult operation and supervision. The utility model adopts the special waterlogging drainage and water absorption unpowered measures to adjust the humidity of the soil infiltration layer, improves the efficiency of the soil infiltration sewage treatment, realizes zero operation cost and zero discharge of sewage recycling, and provides great help for rural distributed domestic sewage treatment. The device can be widely popularized in the distributed courtyard treatment of rural domestic sewage.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a soil infiltration sewage treatment device with unpowered waterlogging drainage and moisture preservation functions, which can drain and collect redundant water through an inclined pipe during waterlogging; during drought, water is replenished without power by utilizing self-absorption property of the water-absorbing material, so that low-cost adjustment of soil humidity and high-efficiency operation of a soil infiltration system are realized. The structure of the filter layer filler of the device is improved according to the structure of the natural soil layer and the functional requirements of the device, so that the economic, durable and low-maintenance characteristics are obtained, and the device is more suitable for low-cost treatment of the rural domestic grey water.

In order to achieve the purpose, the technical scheme is as follows: excessive water in the percolation layer is discharged by adopting an up-flow inclined tube overflow mechanism and is collected in a bearing layer at the bottom of the device through a drainage conduit; the two ends of the water diversion rope are respectively embedded in the middle of the percolation layer and the bottom of the bearing layer, and water is supplemented to the soil percolation layer from bottom to top by utilizing the self-absorption function of the water absorption material. Realize the unpowered drainage waterlogging moisturizing function of soil filtration sewage treatment plant based on above-mentioned drainage and moisturizing technical scheme.

The side wall of the device is provided with an overflow port which is round. According to different drainage depths, multiple layers of overflow ports can be arranged, the number of the layers is controlled to be 2, the buried depth of the overflow port at the lowest layer is higher than that of the waterproof layer and is not less than 0.5m, the buried depth of the overflow port at the uppermost layer is not less than 0.5m, and equipment faults in winter are avoided while the drainage requirements are met. According to the drainage load, the aperture of the opening is 40-50 mm, the arrangement density is preferably 3-5/square meter, the number of the openings in each layer is N, N +1 is arranged, the transverse and longitudinal spacing is equal, and preferably 0.3-0.5 m is selected.

The number and the pipe diameter of the overflow inclined pipes can be designed according to the drainage load, the density is preferably 3-5 pieces/square meter, the number is consistent with the overflow port, and the length is preferably 500-1000 mm according to the planar area design of the infiltration device. The pipe chute evenly arranges inside the infiltration device, for preventing silt siltation jam in the pipeline, outside-in is 45 downwards to be connected with the device wall, and the upper end mouth of pipe docks with the internal face overflow mouth, and inside the lower extreme mouth of pipe stretched into the infiltration layer, was located the water barrier top, was not less than 200mm apart from the water barrier vertical height. The hemp rope is stuffed in the lower end pipe orifice to avoid the oil film from blocking the pipeline. When the rain and water logging occurs, the water level in the device gradually rises, when the water level exceeds the designed water level, the redundant water can be discharged along the inclined pipe from bottom to top by the inclined pipe, and meanwhile, the soil loss can be avoided in the drainage process due to the filtering effect of the pipe opening and the sedimentation effect of the inclined pipe.

The water diversion rope can be made of an economical, durable and environment-friendly polymer fiber water absorption material. The diversion ropes need to be uniformly arranged according to the water supply range, the number of the diversion ropes is designed according to the water demand load and the water supply capacity, and the density is 5-9 per square meter; burying the upper end of the water diversion rope in the middle of the soil percolation layer, wherein the burying depth is determined according to the root depth of the crops planted on the ground surface; the lower end of the supporting layer is embedded into the bottom of the supporting layer, and the water is supplemented to the soil infiltration layer from bottom to top by utilizing the self-absorption function of the water absorption material.

The filler in the land infiltration device is mainly divided into four layers according to the grain size, and the four layers are respectively a bearing layer, a water-resisting layer, an infiltration layer and a covering soil layer from bottom to top. The bearing layer mainly comprises gravels and volcanic rocks with the grain diameters of 10-50mm, and the mixing ratio is 1: 2-1: 1, the microbial carrier can be used as a microbial carrier to enhance the removal effect of organic pollutants in water while meeting the strength requirement; carrying out the thickness range of the bearing layer by 400-600 mm according to the drainage and water storage load of the region; the filler gap can be used for storing and collecting excessive water as a water replenishing source. The water-resisting layer is positioned between the bearing layer and the percolation layer, is mainly clay, has the thickness of about 200mm and the buried depth of about 1.5-2 m, and is mainly used for preventing the water in the percolation layer from excessively losing; the filler of the percolation layer is mainly a mixture of sandy soil, active carbon, shells and wood chips, and the mixing ratio is controlled to be 8: 1-15: 1, good air permeability and water permeability can be provided, and the sewage treatment effect and the economy are improved; the sandy soil is less than 2mm in particle size and 1-1.8 m in thickness, and is uniformly filled with 20-mesh, 60-mesh and 100-mesh materials from bottom to top in sequence, so that good water permeability is ensured. The uppermost layer is a covering soil layer and can be used for planting various plants such as flowers, vegetables and the like. The filling material can be selected according to the construction site, so as to ensure water permeability, air permeability and no hardening, and the thickness is not more than 0.5m.

The outer side wall of the land infiltration device is provided with a drainage conduit corresponding to the overflow port, the upper end of the conduit is provided with an exhaust hood, and the lower end of the conduit is communicated with the bottom of the bearing layer. When the waterlogging is drained, water passes through the overflow port through the inclined pipe and flows into the drainage conduit, and then passes through the backflow hole from the lower end and flows into the bearing layer.

The opening of the exhaust hood is downward, the exhaust hood is reversely buckled at the upper port of the drainage conduit, the plane size is slightly larger than the section of the drainage conduit, and an exhaust channel with the width of 30mm is reserved. The exhaust hood is arranged at the upper port of the drainage conduit, so that the internal and external air pressure difference of the conduit can be balanced, the drainage is ensured to be smooth, and meanwhile, soil can be prevented from entering the conduit, and the maintenance is reduced.

The utility model has the advantages that the utility model improves the technology of inclined pipe drainage and self-absorption water replenishing, helps the soil infiltration device to realize the function of unpowered drainage and moisture preservation, and leads the operation of the sewage treatment system to be more stable and efficient; the structure is simple, and zero maintenance can be basically realized. Has the technical characteristics of simplicity, practicability, high efficiency and low cost. The utility model can drain and collect the redundant water through the inclined pipe when raining and waterlogging; during drought, water is replenished without power by utilizing the water diversion effect of the water-absorbing material, so that the low-cost adjustment of the soil humidity and the high-efficiency operation of a soil infiltration system are realized.

Description of the drawings:

the utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a plan view of the soil infiltration apparatus for unpowered drainage of stagnant water and moisture preservation according to example 1;

FIG. 2 is a vertical arrangement view (A-A) of the inclined tube in accordance with example 1;

FIG. 3 is an elevation view of the inclined tube of example 1 (B-B);

FIG. 4 is a schematic view of the drainage flow direction in embodiment 1;

FIG. 5 is a diagram showing the arrangement of fillers in example 1;

FIG. 6 is a structural view of a dust cover and an exhaust hood in accordance with embodiment 1.

FIG. 7 is a plan view of the soil infiltration apparatus for unpowered drainage of stagnant water and moisture preservation according to example 2;

FIG. 8 is a vertical arrangement view of the inclined tube in accordance with example 2 (A-A);

FIG. 9 is an elevation view of the inclined tube of embodiment 2 (B-B);

FIG. 10 is a schematic view of the drainage flow direction in embodiment 2;

FIG. 11 is a diagram of the packing layout of example 2;

FIG. 12 is a structural view of a dust cover according to embodiment 2.

The method comprises the following steps of 1-unpowered drainage and moisturizing soil infiltration sewage treatment device pool body, 2-overflow inclined pipe, 3-drainage guide pipe, 4-dustproof exhaust hood, 5-water diversion rope, 6-overflow port, 7-reflux port, 8-stone particle bearing layer, 9-clay water-resisting layer, 10-fine sand infiltration layer, 11-soil covering layer and 12-plant.

Detailed Description

Example 1

As shown in figure 1, the unpowered waterlogging-draining and moisturizing soil infiltration device is an uncovered rectangular box (or called a pool body) with an internal cavity of 5m in length, 3m in width and 3m in height. An overflow inclined pipe, a water diversion rope and a filler are arranged in the device, and a drainage guide pipe is vertically arranged on the outer wall surface of the box body. The drainage conduit is provided with an overflow port, and the top of the drainage conduit is provided with a dustproof exhaust hood.

As shown in fig. 2, 9 drainage conduits are vertically arranged on the side walls of the opposite two sides of the box body respectively, and each middle drainage conduit is provided with 1 overflow port; the overflow port is designed into a round hole shape, and the diameter of the overflow port is 50 mm; the longitudinal and transverse center distances of the overflow ports are 0.5m, the overflow ports are arranged in 2 layers along the transverse direction, and the overflow ports on the 9 drainage conduits are alternately arranged on two layers of transverse different layers in a staggered manner in sequence. The distance from the upper layer overflow port to the upper surface of the covering soil layer is 0.8m, and the distance from the center of the lower layer overflow port to the upper surface of the waterproof layer is 0.94 m.

As shown in fig. 2, each overflow port is connected with 1 overflow chute. The diameter of the inclined tube is 50mm, the length of the inclined tube is 1m, and the lower end face of the inclined tube is a tangent plane which forms an angle of 45 degrees with the axis of the inclined tube. As shown in figure 3, a horizontal short pipe (which penetrates through the side wall of the box body) with the length of 50mm and an elbow are used for connecting the overflow port with the overflow inclined pipe, so that the overflow inclined pipe and the inner wall surface of the device form a 45-degree downward direction, the opening surface faces downward, and the plane of the lower end opening is a horizontal plane. The lower port of the lower overflow inclined pipe is at a distance 243mm from the upper boundary of the water-resisting layer.

As shown in fig. 6, the drainage guide pipes are vertically arranged on the outer wall of the box body, the transverse distance between adjacent drainage guide pipes is 50mm, an inverted U-shaped dustproof exhaust hood is arranged at the opening at the upper end of each guide pipe (the upper opening end of each drainage guide pipe is communicated with the atmosphere), and the lower end of each drainage guide pipe is butted with a backflow port arranged on a bearing layer at the bottom of the side wall; the section of the drainage conduit is 150mm long and 100mm wide; the dustproof exhaust hood has an inner cavity with the length of 210mm, the width of 130mm and the height of 130mm, and is reversely buckled on an opening at the upper end of the drainage conduit.

As shown in figure 2, the bottom of the box wall is provided with a backflow port communicated with the lower end of the drainage pipe under each overflow port, the backflow port is square, 150mm long, 200mm high, 9 on one side, 18 on two sides, the distance is 50mm, and the single size ensures that drainage water flows smoothly flow into the bottom bearing layer.

As shown in fig. 5, 4 layers of fillers are filled in the box body, and a stone grain bearing layer, a clay water-resisting layer, a percolation layer and a soil covering layer are sequentially paved from bottom to top. The supporting layer at the bottom is filled with volcanic rocks and gravels with the grain diameter of 10-50mm, and the mixing mass ratio is 1: 1, the thickness is 550 mm; the middle water-resisting layer is filled with water-proof clay, and the thickness of the water-resisting layer is 200 mm; and filling a mixture of fine sand and activated carbon in the upper percolation layer, wherein the mixing mass ratio is 10: 1, the grain diameter of the fine sand is 1-2 mm; the activated carbon is prepared by pressing coconut shells, is columnar granular activated carbon with the diameter of 2mm and the length of 5-10mm, and has a percolation layer with the thickness of 1750 mm; the soil covering layer is filled with loam (mainly black soil) near the construction site, and the thickness of the loam is 500 mm. As shown in figures 1 and 5, when filling, 60 water diversion ropes with the diameter of 30mm and the length of 1.2m are vertically and uniformly arranged in a box body, the main material of the water diversion ropes is polyurethane fiber, the type xq85/12 is produced in sponge products factories of Huangjiang Xiangqing of Dongguan city, and the water diversion ropes are uniformly distributed in a percolation layer; the length of the lower section of the diversion rope is 0.3mm in the bearing layer, the length of the upper section of the diversion rope is 0.7m in the infiltration layer, and the distance between the upper end of the diversion rope and the ground is 1.55 m.

As shown in figure 4, when the device drains stagnant water, water in the percolation layer flows upwards along the overflow inclined pipe, flows out of the overflow port and flows into the bearing layer at the bottom of the device through the backflow hole along the drainage guide. When water is supplemented, water passes through the water-resisting layer from the bearing layer and is diffused to the infiltration layer through the water-resisting layer under the water absorption action of the water diversion rope.

As shown in figure 5, February is planted on the top layer filler of the device, the plant spacing is 100mm, and the row spacing is 100mm, so that the synergistic treatment effect of the plants and soil on sewage is enhanced.

The product has good application effect in a motor home camp scene. Within the range of occupying 15 square meters, the treatment load of 2 tons/day domestic sewage can be met, and the unpowered, zero-emission and low-cost sewage treatment is realized. Due to the specific microcirculation soil infiltration treatment process of the device, the device also has the following outstanding characteristics in the project construction and operation process: 1. the project is friendly in use condition, and drainage and electric power matching are not required to be considered; 2. the construction is simple, and the complete equipment is suitable for project construction and installation; 3. the bionic sewage treatment process is convenient for the management and maintenance of the operation of the device and reduces the operation and maintenance cost; 4. the method is environment-friendly, and realizes zero discharge of sewage and sludge; 5. the carbon sink effect of plants and soil is utilized to realize negative carbon treatment of sewage, and meanwhile, certain economic and social benefits are generated, and the method has a pioneering guiding effect on the development direction of the distributed sewage treatment technology.

Example 2

As shown in figure 7, the unpowered waterlogging draining and moisturizing soil infiltration device is a square box (or called a pool body) with an inner cavity of 3m in length, 3m in width and 2.5m in height and without a cover. An overflow inclined pipe, a water diversion rope and a filler are arranged in the device, and a drainage guide pipe is vertically arranged on the outer wall of the box body. The drainage conduit is provided with an overflow port, and the top of the drainage conduit is provided with a dustproof exhaust hood.

As shown in fig. 8, 5 drainage conduits are vertically arranged on the side walls of the opposite two sides of the box body, and 1 overflow port is arranged in the middle of each drainage conduit; the overflow port is designed into a round hole shape, and the diameter of the overflow port is 50 mm; the longitudinal and transverse center distances of the overflow ports are 0.5m, the overflow ports are arranged in 2 layers along the transverse direction, and the overflow ports on the 5 drainage conduits are alternately arranged on two layers of different transverse layers in a staggered manner in sequence. The distance between the center of the upper layer overflow port and the top of the device is 0.62m, and the distance between the center of the lower layer overflow port and the upper boundary of the water-resisting layer is 0.7 m.

As shown in fig. 8, 1 overflow chute is connected to each overflow port. The diameter of the inclined tube is 50mm, the length of the inclined tube is about 0.8m, and the lower end surface of the inclined tube is a tangent plane which forms an angle of 45 degrees with the axis of the inclined tube. As shown in figure 9, the overflow port and the overflow inclined pipe are connected by a horizontal short pipe (penetrating through the side wall of the box body) with the length of 50mm and an elbow, so that the overflow inclined pipe and the inner wall surface of the device form a 60-degree downward direction, the opening surface faces downward, and the plane of the lower end opening is a horizontal plane. The lower port of the lower overflow inclined pipe is 0.3m away from the upper boundary of the water-resisting layer.

As shown in fig. 12, the drainage guide pipes are vertically arranged on the outer wall of the box body, the transverse distance between adjacent drainage guide pipes is 50mm, an inverted U-shaped dust-proof exhaust hood is arranged at the opening at the upper end of each guide pipe (the upper opening end of each drainage guide pipe is communicated with the atmosphere), and the lower end of each drainage guide pipe is butted with a backflow port arranged on a bearing layer at the bottom of the side wall; the section of the drainage conduit is 150mm long and 100mm wide; the dustproof exhaust hood has an inner cavity with the length of 210mm, the width of 130mm and the height of 130mm, and is reversely buckled on an opening at the upper end of the drainage conduit.

As shown in figure 8, the bottom of the box wall is provided with a backflow port communicated with the lower end of the drainage pipe under each overflow port, the backflow port is square, 150mm long, 200mm high, 5 on one side, 10 on two sides, the center distance is 50mm, and the single size ensures that drainage water flows smoothly flow into the bottom bearing layer.

As shown in fig. 11, 4 layers of fillers are filled in the box body, and a stone grain bearing layer, a clay water-resisting layer, a percolation layer and a soil covering layer are sequentially paved from bottom to top. The supporting layer at the bottom is filled with volcanic rocks and gravels with the grain diameter of 10-50mm, and the mixing mass ratio is 1: 1, the thickness is 0.5 m; the middle water-resisting layer is filled with water-proof clay, and the thickness of the water-resisting layer is 0.18 m; and filling a mixture of fine sand and activated carbon in the upper percolation layer, wherein the mixing mass ratio is 10: 1, the grain diameter of the fine sand is 1-2 mm; the activated carbon is prepared by pressing coconut shells, is columnar granular activated carbon with the diameter of 2mm and the length of 5-10mm, and has the infiltration layer thickness of 1.52 m; the soil covering layer is filled with loam (mainly black soil) near the construction site, and the thickness of the loam is 0.3 m.

As shown in fig. 7 and 11, when filling, 50 diversion ropes with a diameter of 25mm and a length of 1.2m are vertically and uniformly arranged in the box body, and the main material of the diversion ropes is polyurethane fiber which is produced in a sponge product factory of Huangjiang auspicious celebration in Dongguan city, the model of which is xq85/12 and is uniformly distributed in a percolation layer; the lower section of the diversion rope is embedded with a supporting layer with the length of 0.32mm, the upper section of the diversion rope is embedded with a percolation layer with the length of 0.7m, and the distance between the upper end of the diversion rope and the ground is 1.12 m.

As shown in figure 10, when the device drains stagnant water, water in the percolation layer flows upwards along the overflow inclined pipe, flows out of the overflow port and flows into the bearing layer at the bottom of the device through the backflow hole along the drainage guide. When water is supplemented, water passes through the water-resisting layer from the bearing layer and is diffused to the infiltration layer through the water-resisting layer under the water absorption action of the water diversion rope.

As shown in figure 11, sunflower is planted on the filler on the top layer of the device, the plant spacing is 150mm, the row spacing is 200mm, and the synergistic treatment effect of the plants and the soil on the sewage is enhanced.

The product has good application effect in the rural domestic sewage courtyard treatment scene without the pipe network. Within the range of occupying 9 square meters, the treatment load of 1 ton/day of domestic sewage (grey water) can be met, and unpowered, zero emission and low cost of sewage treatment are realized. Provides an optimal solution for the rural domestic sewage decentralized treatment problem.

Claims (11)

1. The utility model provides a soil filtration sewage treatment plant with unpowered drainage moisturizing function which characterized in that:

comprises a cylindrical tank body with an upper end open and a lower end closed, wherein a stone particle bearing layer, a clay water-resisting layer, a percolation layer and a soil covering layer are sequentially paved in the tank body from bottom to top;

an overflow inclined pipe is arranged in the tank body, and two open ends of the overflow inclined pipe are both positioned in the region of the percolation layer; a drainage guide pipe is arranged on the side wall of the tank body, an overflow port connected with one open end of the overflow inclined pipe is arranged on the side wall surface of the drainage guide pipe, the lower open end of the drainage guide pipe is communicated with the supporting layer, and the upper open end of the drainage guide pipe is communicated with the atmosphere; one opening end of the overflow inclined pipe is communicated with the drainage guide pipe through an overflow port on the side wall surface of the drainage guide pipe, the overflow inclined pipe is arranged in the pool body in a downward inclined mode from the overflow port, and the other opening end of the overflow inclined pipe is located between the plane where the bottom of the overflow port is located and the plane of the waterproof layer;

a water diversion rope is arranged in the tank body, the upper end of the water diversion rope is arranged at the middle upper part in the percolation layer, and the lower end of the water diversion rope penetrates through the water-resisting layer and extends into the middle lower part or the bottom in the bearing layer.

2. The processing apparatus of claim 1, wherein: the supporting layer is formed by filling stone particles with the particle size of 10-50 mm; the thickness range of the bearing layer is 0.4-0.6 m;

the water-resisting layer is arranged above the supporting layer and is formed by filling clay with impermeability, and the thickness of the water-resisting layer is 0.18-0.22 m;

the percolation layer is positioned above the water-resisting layer and is formed by filling a mixture of fine sand with the particle size of 1-2mm and one or more than two of active carbon, shell powder and wood dust with the particle size of 5-10mm as a filler, and the thickness range is 1-1.8 m;

the covering soil layer is located above the percolation layer, is the uppermost layer in the filler, is filled with soil which is suitable for plant growth and has the capabilities of loosening, ventilating, retaining water and fertilizer, and the thickness range is 0.2-0.5 m.

3. The processing apparatus of claim 1, wherein:

the number of the drainage guide pipes is more than 2; the drainage conduit is vertically arranged on the side wall of the tank body, and the arrangement position of the drainage conduit can be one or more than two of the following: is positioned on the inner side wall surface of the tank body, or positioned in the side wall surface of the tank body, or positioned on the outer side wall surface of the tank body;

the overflow inclined pipe is horizontally and hermetically connected with an overflow port on the side wall surface of the drainage conduit through an elbow.

4. The processing apparatus according to claim 1 or 2, wherein:

the overflow ports are more than 2 and are circular, and are arranged in multiple layers from top to bottom, and the number of the layers is preferably controlled to be 2-3; the longitudinal and transverse center distances of the overflow ports are both 0.5m, and the overflow ports on the upper and lower different layers are sequentially staggered along the transverse direction;

the distance from the center of the overflow port at the lower layer to the upper surface of the waterproof layer is 0.7-1.0m, the distance from the center of the overflow port at the uppermost layer to the upper surface of the covering soil layer is preferably 0.5-0.8 m, and the aperture of the opening is selected from 40-50 mm.

5. The processing apparatus according to claim 4, wherein:

the arrangement density of the overflow mechanism is designed according to 1-1.5 per square meter by the cross section area of the cylindrical tank body, and the overflow mechanism comprises an overflow inclined pipe and an overflow port;

the number of the overflow inclined pipes is more than 2, and the overflow inclined pipes are straight pipes; the lower opening ends of the two layers are arranged in a plurality of layers from top to bottom, and the number of the layers is preferably controlled to be 2-3; the longitudinal center distance of the lower opening ends between the adjacent 2 layers is preferably controlled to be 0.3-0.5 m; the transverse center distance of the lower opening end between the same layers is preferably controlled to be 0.3-0.5 m.

6. The processing apparatus according to claim 4, wherein: the overflow inclined pipe is a straight pipe; the length of the horizontal shaft is preferably 500-1000 mm, the axis of the horizontal shaft forms an included angle of 30-60 degrees with the horizontal plane, the plane where the lower end opening is located is the horizontal plane, and the opening face is downward.

7. The processing apparatus of claim 6, wherein: the axis of the overflow inclined pipe and the horizontal plane form an included angle of 45 degrees.

8. The processing apparatus of claim 1, wherein: the water diversion rope is woven by environment-friendly polymer fiber water absorption materials or high water absorption biomass materials, the length range of the water diversion rope is 0.8-1.2m, and the diameter range of the water diversion rope is 20-30 mm.

9. The processing apparatus of claim 1, wherein:

the distribution density of the diversion ropes is 3-5 per square meter calculated by the cross sectional area of the inner cavity of the cylindrical tank body, and the diversion ropes are uniformly distributed in the percolation layer.

10. The processing apparatus of claim 1, wherein:

a dustproof exhaust hood is arranged at the upper opening end of the drainage conduit communicated with the atmosphere, and a cylindrical dustproof exhaust hood with an opening at the lower end and a closed upper end is buckled at the upper port of the drainage conduit;

one or more than two plants of flowers and vegetables are planted on the soil covering layer.

11. The processing apparatus of claim 2, wherein:

the mixing mass ratio of the gravels to the volcanic rocks in the bearing layer is 1: 2-1: 1;

the mixing mass ratio of the fine sand to one or more than two of the active carbon, the shell powder and the wood dust in the percolation layer is 8: 1-15: 1.

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