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Botanical filler constructed subsurface wetland constructing and running method

A subsurface wetland and plant matter technology is applied in the field of plant matter filler artificial subsurface wetland construction and operation, which can solve the problems of high construction cost and maintenance cost, reduced application prospects, lack of solutions, etc., and achieves poor denitrification effect. , reduce waste of resources and secondary pollution, and build simple effects

Inactive Publication Date: 2017-04-05
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its high construction cost and maintenance cost will undoubtedly greatly reduce the application prospects
[0007] To sum up, in the prior art, there is still no effective solution to the problem of how to supplement carbon sources in constructed wetlands and achieve cost control at the same time

Method used

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  • Botanical filler constructed subsurface wetland constructing and running method
  • Botanical filler constructed subsurface wetland constructing and running method
  • Botanical filler constructed subsurface wetland constructing and running method

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Embodiment 1: As introduced in the background technology, there are shortcomings in the prior art that artificial wetlands lack carbon sources and have high costs. In order to solve the above technical problems, this application proposes a plant material filled artificial subsurface flow wetland construction. The constructed wetland construction provided by this embodiment has a structure such as figure 1 and Figure 7 Shown:

[0047] The packing bed 12 of the main body of the wetland has an aspect ratio of 2:1 and a slope of 4%. The overflow weir 2 is built along the water flow direction, and the water distribution baffle 3 is arranged at the outlet of the overflow weir 2. The water distribution baffle 3 is evenly distributed. Arrange water holes 11 with a diameter of 20 mm, and fill the packed bed 12 with a height of 90 cm, and fill the gravel with a thickness of 20 cm and a particle size of 40-50 mm in order from bottom to top, so that it becomes the lower gravel la...

Embodiment 2

[0054] Embodiment 2: A kind of plant matter filler artificial subsurface flow wetland construction, such as figure 2 and Figure 7 As shown, the constructed wetland is a horizontal subsurface flow constructed wetland. The aspect ratio of the packing bed 12 of the main body of the wetland is 2:1, and the slope is 4%. The water baffle 3 and the water distribution baffle 3 are uniformly arranged with water holes 11 with an aperture of 20mm, and the packing bed 12 is 90cm high, and the gravel with a thickness of 20cm and a particle size of 60-70mm is filled in order from bottom to top, so that it become the lower gravel layer 8;

[0055] A certain amount of lotus seed shell and water chestnut skin mixture, its thickness is 30cm, makes it become lotus seed shell and water caltrop skin mixed filler layer 13 (i.e. plant material layer);

[0056] Gravel with a thickness of 15 cm and a particle size of about 20 mm, making it the upper gravel layer 6;

[0057] A certain amount of sa...

Embodiment 3

[0061] Embodiment 3: A kind of artificial subsurface flow wetland construction of plant matter filler, such as image 3 and Figure 7 As shown, the constructed wetland is a horizontal subsurface flow constructed wetland. The length-to-width ratio of the packing bed 12 in the main body of the wetland is 2:1, and the slope is 5%. The water baffle 3 and the water distribution baffle 3 are evenly arranged with water holes 11 with a diameter of 20mm, and the packing bed 12 is 90cm high, and the gravel with a thickness of 20cm and a particle size of 40-50mm is filled in order from bottom to top, so that it become the lower gravel layer 8;

[0062] A certain amount of lotus seed shell and Gorgon fruit mixture, the thickness of which is 30cm, makes it a lotus seed shell and Gorgon fruit mixed filler layer 14 (i.e. plant matter layer);

[0063] Gravel with a thickness of 15 cm and a particle size of about 20 mm, making it the upper gravel layer 6;

[0064] A certain amount of sand, ...

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Abstract

The invention relates to a botanical filler constructed subsurface wetland constructing and running method. The method solves the problems of difficulty in carbon source feeding and difficulty in cost control of present constructed wetlands, and has the advantages of low cost and sufficient carbon source. A constructed subsurface wetland construction part comprises a filler bed and a matrix filled in the filler bed, one side of the filler bed communicates with a water inlet pipe, and the other side of the filler bed communicates with a water outlet pipe; and the matrix sequentially comprises a lower gravel layer, a botanical layer, an upper gravel layer and a sandy soil layer from bottom to top, and wetland plants are planted on the sandy soil layers.

Description

technical field [0001] The invention relates to the technical field related to environmental engineering, in particular to a method for constructing and operating an artificial underflow wetland filled with plant matter. Background technique [0002] In recent years, with the rapid development of my country's economy, the process of industrialization has been accelerating, people's living standards have been improving day by day, and the C / N of urban sewage has gradually decreased, resulting in a low removal rate of total nitrogen and causing great harm to the environment. [0003] The constructed wetland sewage treatment system is a treatment system in which sewage is transported in an orderly manner to a long-term water-saturated matrix, and aquatic plants are planted in the matrix, and the sewage is purified in the flow under the joint action of aquatic plants and the matrix. . As a typical sewage ecological treatment technology, constructed wetlands can not only effecti...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/32C02F3/34C02F3/30
CPCC02F1/001C02F3/305C02F3/32C02F3/34C02F9/00C02F2209/16C02F2301/08C02F2305/06Y02W10/10
Inventor 张建兰伟张成禄胡振范金林张馨文
Owner SHANDONG UNIV
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