Integral stereoscopic wetland wastewater treatment effluent TN control device and method

A technology of sewage treatment and control device, applied in biological water/sewage treatment, water/sludge/sewage treatment, adjustment method of biological treatment, etc.

Pending Publication Date: 2018-07-13
JIANGSU PROVINCIAL ACAD OF ENVIRONMENTAL SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to address the problem of rural domestic sewage pollution control, and provide an integrated three-dimensional wetland sewage treatment effluent TN control device and method, through the treatment of rural domestic sewage, reduce the content of harmful substances such as nitrogen, phosphorus and organic matter in rural domestic sewage Avoid eutrophication of water bodies such as rivers and lakes, and protect the ecological environment around the countryside

Method used

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  • Integral stereoscopic wetland wastewater treatment effluent TN control device and method
  • Integral stereoscopic wetland wastewater treatment effluent TN control device and method
  • Integral stereoscopic wetland wastewater treatment effluent TN control device and method

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Embodiment 1

[0026] Embodiment 1: The present invention is described in further detail below according to the accompanying drawings:

[0027] control figure 1, using concrete 1, plastic partitions 2, and steel wire screens 3 to construct an integrated wetland sewage treatment device, the size of which is 3m×4m×4m. The device is designed into 4 partitions, one is the sewage pretreatment area, the second is the horizontal flow wetland sewage purification area, the third is the vertical flow wetland sludge purification area, and the fourth is the vertical flow sewage purification area. The volume ratio of the four partitions is set to 1 :0.6:0.15:1. The sewage purification area of ​​the horizontal flow wetland and the sludge purification area of ​​the vertical flow wetland are separated by plastic partitions. Aquatic plants 4 are planted in both wetlands, and the matrix 8 is designed to be cinder (particle size 4~6mm, specific surface area 0.25~0.35m 2 / g), the substrate depth is designed ...

Embodiment 2

[0033] Embodiment 2: The difference between this embodiment and Embodiment 1 is that when the temperature is <12°C, the treatment efficiency of the constructed wetland is low, and the filling ratio needs to be increased to achieve the required water quality standard. When the filling ratio is less than 60%, TN can not meet the standard of surface water environmental quality V; when the filling ratio is 60%, TN can reach the standard of surface water environmental quality V. The specific implementation effect is shown in Table 1.

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Abstract

The invention provides an integral stereoscopic wetland wastewater treatment effluent TN control device and method. The treatment device comprises a wastewater pretreatment region, a horizontal flow wetland wastewater purification region, a vertical flow wetland sludge purification region and a vertical flow wastewater purification region, wherein the horizontal flow wetland wastewater purification region and the vertical flow wetland sludge purification region are arranged in parallel above the wastewater pretreatment region; and the vertical flow wastewater purification region is arranged onthe side edge, is partitioned with a concrete structure and is sequentially provided with a crushed stone layer, a natural vermiculite layer, a riversand layer and a biological filler ball layer fromtop to bottom, the layers are assembled by adopting a module type, and the filling ratio of biological filler balls in the biological filler ball layer is 20-65 percent. The method is small in occupied area, stable in treatment effect and convenient in operation management, does not cause secondary pollution and is suitable for various wastewater treatments.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and specifically relates to an integrated three-dimensional wetland sewage treatment effluent TN control device and method, which can reduce the content of nitrogen, phosphorus and organic matter in domestic sewage, so as to protect the water environment, and is especially suitable for rural areas in my country. Background technique [0002] my country is a large agricultural country with a large population, and the per capita water resources are about 2200m 3 , less than 1 / 4 of the world's average level, and there is a serious shortage of water resources. With the continuous improvement of my country's economic level and people's living standards, the resulting deterioration of the water environment has also received people's attention. However, people only pay attention to the water environment problems in cities, thus ignoring the water pollution in rural areas, especially the proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F101/10C02F101/16C02F101/30
CPCC02F3/006C02F3/32C02F2101/16C02F2101/105C02F2101/30
Inventor 许明李明白永刚刘伟京涂勇
Owner JIANGSU PROVINCIAL ACAD OF ENVIRONMENTAL SCI
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