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Slope soil infiltration system for treating rural domestic sewage

A technology for soil infiltration and domestic sewage, applied in filtration treatment, special treatment targets, water/sewage treatment, etc. Resource utilization efficiency, improving water distribution efficiency and water distribution uniformity, and improving hydraulic load effects

Inactive Publication Date: 2020-08-04
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to statistics, my country's annual agricultural and forestry waste reaches more than 700 million tons. In the vast rural areas, a large amount of agricultural and forestry waste is difficult to be properly utilized, and most of them are incinerated. This not only wastes resources but also causes serious harm to air quality.
Most of the construction waste such as concrete fragments and waste bricks are landfilled, which also causes a serious waste of land resources.

Method used

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  • Slope soil infiltration system for treating rural domestic sewage
  • Slope soil infiltration system for treating rural domestic sewage
  • Slope soil infiltration system for treating rural domestic sewage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment is tested on a 10° slope next to a farmer's house in Shanggaozhuang Village, Wugong County, Yangling District, Shaanxi Province. The structure is as follows figure 1 as shown,

[0040] From top to bottom, there are: plant layer 1, planting soil layer 2, water distribution pipe 3, water distribution layer 4, soil infiltration layer 5, drainage plate 6, barrier plate 7, packing layer 8, supporting layer 9, outlet Water inlet 11, anti-seepage walls 10 are arranged around and at the bottom of the infiltration system. Plant layer 1 is planted with ryegrass on the ground. The planting soil layer 2 consisted of cultivated soil with a thickness of 10 cm. The water distribution pipe 3 includes a DN10PVC water distribution main pipe and a DN5PVC water distribution branch pipe; the water distribution branch pipes are located on both sides of the water distribution main pipe, forming an angle of 45° with the main pipe, and there are several percolation holes on th...

Embodiment 2

[0043] This embodiment is tested on a 13° slope next to a farmer's house in Dashuikeng Village, Yanchi County, Wuzhong City, Ningxia Hui Autonomous Region.

[0044] structured as figure 1 as shown,

[0045] From top to bottom, there are: plant layer 1, planting soil layer 2, water distribution pipe 3, water distribution layer 4, soil infiltration layer 5, drainage plate 6, barrier plate 7, packing layer 8, supporting layer 9, outlet Water inlet 11, anti-seepage walls 10 are arranged around and at the bottom of the infiltration system. Plant layer 1 is planted with alfalfa on the ground. The planting soil layer 2 consisted of cultivated soil with a thickness of 10 cm. The water distribution pipe 3 includes a DN10PVC water distribution main pipe and a DN5PVC water distribution branch pipe; the water distribution branch pipes are located on both sides of the water distribution main pipe, forming an angle of 45° with the main pipe, and there are several percolation holes on the...

Embodiment 3

[0048] This embodiment is tested on a 15° slope next to a farmer's house in Dashi Township, Gangu County, Tianshui City, Gansu Province.

[0049] structured as figure 1 as shown,

[0050] From top to bottom, there are: plant layer 1, planting soil layer 2, water distribution pipe 3, water distribution layer 4, soil infiltration layer 5, drainage plate 6, barrier plate 7, packing layer 8, supporting layer 9, outlet Water inlet 11, anti-seepage walls 10 are arranged around and at the bottom of the infiltration system. Plant layer 1 is planted with alfalfa on the ground. The planting soil layer 2 consisted of cultivated soil with a thickness of 10 cm. The water distribution pipe 3 includes a DN10PVC water distribution main pipe and a DN5PVC water distribution branch pipe; the water distribution branch pipes are located on both sides of the water distribution main pipe, forming an angle of 45° with the main pipe, and there are several percolation holes on the side of the branch...

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Abstract

The invention provides a slope soil infiltration system for treating rural domestic sewage, and belongs to the technical field of sewage treatment; the slope soil infiltration system sequentially comprises a plant layer, a planting soil layer, a water distribution pipe, a water distribution layer, a soil infiltration layer, a filler layer and a supporting layer from top to bottom; the inclinationangle of the slope soil infiltration system ranges from 10 degrees to 15 degrees; a water outlet is formed in the lower end of the supporting layer of the slope soil infiltration system; the water distribution layer comprises waste concrete fragments; the filler layer comprises crop straw particles, corncob particles, sawdust and loessal soil; the supporting layer comprises waste concrete fragments; drainage plates are laid in the soil infiltration layer and the filler layer; a plurality of baffle plates are vertically distributed on the slope soil infiltration system. The infiltration systemdisclosed by the invention can stably operate, is uniform in water distribution, not easy to block, high in hydraulic load and high in pollutant removal efficiency, and is suitable for domestic sewagetreatment under the condition of a land with a large slope in a remote rural area.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a slope soil infiltration system for treating rural domestic sewage. Background technique [0002] Soil infiltration treatment system is a sewage ecological engineering treatment technology with simple operation and low energy consumption. It uses soil with good permeability such as sandy soil and loess soil to filter sewage, and at the same time, it further purifies the sewage through the combined physical, chemical and biological actions of animals, plants and microorganisms in the soil, and finally realizes the harmlessness of sewage and resources. change. The existing soil infiltration treatment technology has defects such as unstable operation, uneven water distribution, easy blockage of the system, low hydraulic load, large land occupation and difficulty in adapting to land conditions with large slopes in remote areas. [0003] my country is a large agricultural ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/30C02F101/16C02F101/10
CPCC02F9/00C02F3/34C02F3/32C02F1/44C02F1/001C02F1/281C02F2101/30C02F2101/16C02F2101/105C02F2203/006C02F2303/02C02F2209/08C02F2209/14C02F2209/16
Inventor 吴海明李文李明董璐赵欣贾利霞冯立魁王瑞刚
Owner NORTHWEST A & F UNIV
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