Unlock instant, AI-driven research and patent intelligence for your innovation.

Terraced soil-stratification overflow water purification system and terraced soil-stratification type overflow water purification method

A technology of soil stratification and purification system, applied in the field of water treatment, to achieve the effect of increasing the oxygen content of water body and large environmental benefits

Inactive Publication Date: 2015-03-04
北京土人城市规划设计股份有限公司 +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the cost of sewage treatment, many enterprises even directly discharge sewage into rivers, causing irreversible environmental problems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Terraced soil-stratification overflow water purification system and terraced soil-stratification type overflow water purification method
  • Terraced soil-stratification overflow water purification system and terraced soil-stratification type overflow water purification method
  • Terraced soil-stratification overflow water purification system and terraced soil-stratification type overflow water purification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 Terrace type soil layered overflow water purification system (1)

[0023] like Figure 1-Figure 3 As shown, a terraced soil layered overflow water purification system includes several terraced paddy field layers 1, each paddy field layer is distributed in a step shape from high to low, and retaining walls 2 are arranged on the outer periphery of each paddy field layer. In order to ensure that the water flow rate is neither too fast nor too slow, the paddy field layer 1 is 3-4 levels, and the width of each paddy field layer along the slope direction of the steps is 4-6m, which avoids the problem of low water purification rate in the water surface with too long width. Increased water purification efficiency. The height difference between adjacent paddy field layers 1, that is, the distance from the surface of the higher paddy field layer to the surface of the lower paddy field layer is 0.5-1m, which forms the oxygenation process of the water body falling rep...

Embodiment 2

[0029] Embodiment 2 Terrace type soil layered overflow water purification system (two)

[0030] The structure of this embodiment is substantially the same as that of Embodiment 1, except that a gravel layer 9 is provided between the zeolite layer and the compacted clay anti-seepage layer for collecting purified water.

Embodiment 3

[0031] Example 3 Sewage purification using platform soil layered overflow purification system

[0032] Utilize the platform type soil layered overflow purification system described in embodiment 2 to carry out sewage purification, the paddy field layer has six layers in total, the width of the paddy field layer is 5m, the height difference between adjacent paddy field layers is 0.5m, and the planting layer 3 It is sandy soil with a thickness of 400mm, and the planting plants are reeds; the thickness of the coarse sand layer is 300mm, the thickness of the zeolite layer is 250mm, the diameter of the zeolite is Φ5-10mm, the thickness of the gravel layer is 300mm, and the thickness of the rammed clay anti-seepage layer is 600mm, which is clay The proportion is 100% yellow clay, the permeability coefficient is 5mm / d, and the compaction coefficient is 95%. The sewage source water is an artificial river in Beijing, and the pollutant content of the source water is: TN: 24.8mg / L, TP: 0...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a terraced soil-stratification overflow water purification system and a terraced soil-stratification overflow water purification method. The terraced soil-stratification overflow water purification system comprises a plurality of terraced field layers, and all the field layers are distributed like steps in sequence from top to bottom; two ends of each field layer are respectively provided with a retaining wall; each field layer comprises a plant cultivating layer, a coarse-sand layer, a zeolite layer and a compacted impervious clay layer in sequence from top to bottom, wherein the plant cultivating layer is used for adsorbing nutrients in water, the coarse-sand layer is used for filtering suspended solid matters, the zeolite layer is used for further filtering and keeping water flowing, and the compacted impervious clay layer is used for preventing the infiltrating of water; plants are cultivated on each plant cultivating layer, and the upper surface of each plant cultivating layer is lower than the upper ends of the retaining walls on two ends; the upper end of each compacted impervious clay layer is higher than the lower ends of the retaining walls on two ends; an overflow pipe is arranged between every two adjacent field layers, an inlet of the overflow pipe is positioned on each zeolite layer of a higher field layer, an outlet of the overflow pipe is positioned on the upper part of each plant cultivating layer of a lower field layer, and is lower than the lowest retaining wall of the retaining walls on two ends of the higher field layer. The sewage introduced into the terraced soil-stratification overflow water purification system can be purified effectively and easily.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a platform type soil layered overflow water purification system and method. Background technique [0002] With the development of the economy and the prosperity of the industry, the sewage generated in the production process has become an urgent problem to be solved. In order to reduce the cost of sewage treatment, many enterprises even directly discharge sewage into rivers, causing irreversible environmental problems. At present, the sewage treatment process is generally divided into three levels: first-level treatment: through mechanical treatment, such as grille, sedimentation or air flotation, to remove stones, sand and gravel, fat, grease, etc. contained in sewage; second-level treatment: biological treatment, Pollutants in sewage are degraded and converted into sludge under the action of microorganisms; tertiary treatment: advanced treatment of sewage, which includ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 俞孔坚俞宏前方渊史书菡王佳俞晴霞
Owner 北京土人城市规划设计股份有限公司