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A construction method of constructed wetland industrialization

A technology of artificial wetlands and construction methods, applied in chemical instruments and methods, botany equipment and methods, agriculture, etc., can solve the problems of insufficient sewage treatment capacity and saturation, and achieve convenient plant root absorption, less land occupation, high The effect of economic value

Active Publication Date: 2018-05-04
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Generally, various fillers are used as substrates in constructed wetlands. These substrates can initially absorb pollutants such as nitrogen and phosphorus, but they all have the problem of saturation. If the substrate is not replaced in time after saturation, pollutants will be released into the water body and become a source of pollution.
[0005] With the increase of population and economic growth, the problem of water pollution in my country is becoming more and more serious, but the sewage treatment capacity is still insufficient

Method used

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  • A construction method of constructed wetland industrialization
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Examples

Experimental program
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Effect test

Embodiment 1

[0035] Such as figure 1 As shown, an industrial construction method of constructed wetland in this embodiment is used to purify domestic sewage and aquaculture wastewater, and produce vegetables or grass at the same time, including:

[0036] (1) Build a plastic greenhouse:

[0037] The plastic greenhouse is composed of white plastic film and steel support. The film is detachable. The width of the greenhouse is 5 meters, the height is 5 meters, and the length is 35 meters. The plastic film is covered when the temperature is lower than 20 ℃, and the plastic film is removed when the temperature is higher than 20 ℃.

[0038] (2) Construction of multi-level pure hydroponic vertical flow artificial wetland:

[0039] The vertical flow artificial wetland cement pool has a width of 2 meters, the primary purification pool has a length of 5 meters, a height of 60 cm, and a width of 2 meters; the secondary purification pool has a length of 5 meters, a height of 40 cm, and a width of 2 mete...

Embodiment 2

[0049] An industrial construction method of a constructed wetland in this embodiment is used to purify factory sewage and produce economic plants such as lawns and flowers, including:

[0050] (1) Build a plastic greenhouse:

[0051] The plastic greenhouse is composed of white plastic film and steel support. The film is detachable. The width of the greenhouse is 15 meters, the height is 5 meters, and the length is 55 meters. The plastic film is covered when the temperature is lower than 20 ℃, and the plastic film is removed when the temperature is higher than 20 ℃.

[0052] (2) Construction of multi-level pure hydroponic vertical flow artificial wetland:

[0053] The vertical flow artificial wetland cement pool has a width of 2 meters, the primary purification pool has a length of 10 meters, a height of 60 cm, and a width of 2 meters; the secondary purification pool has a length of 20 meters, a height of 30 cm, and a width of 2 meters; the final purification pool has a length ...

Embodiment 3

[0063] An industrial construction method of a constructed wetland in this embodiment is used to purify agricultural non-point source pollution and reclaimed water discharged from sewage treatment plants, including:

[0064] (1) Build a plastic greenhouse:

[0065] The plastic greenhouse is composed of white plastic film and steel support. The film is detachable. The width of the greenhouse is 20 meters, the height is 5 meters, and the length is 15 meters. The plastic film is covered when the temperature is lower than 20 ℃, and the plastic film is removed when the temperature is higher than 20 ℃.

[0066] (2) Construction of multi-level pure hydroponic vertical flow artificial wetland:

[0067] The vertical flow artificial wetland cement pool has a width of 2 meters, the primary purification pool has a length of 5 meters, a height of 30 cm, and a width of 2 meters; the secondary purification pool has a length of 5 meters, a height of 20 cm, and a width of 2 meters; there is no ...

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Abstract

The invention relates to an industrial construction method of an efficient and high-yield constructed wetland. The method comprises steps as follows: (1) constructing a plastic greenhouse; (2) constructing a multi-stage pure water culture vertical flow constructed wetland in the plastic greenhouse; (3) producing a seedbed from plant fibers; (4) culturing target plants on the seedbed; (5) placing the seedbed carrying the target plants on the vertical flow constructed wetland; (6) taking away the seedbed and the plants as a whole after a period to use the whole as a biological material or an economic product. Efficient purification and high yield of plant materials are realized through maximum absorption and utilization of pollutants by the target plants in the fast vegetative growth period, the industrialization construction mode can be realized, domestic sewage, aquaculture wastewater, industrial wastewater, reclaimed water in sewage treatment plants and the like can be purified efficiently, and the high economic value is created. The constructed wetland has the characteristics that the constructed wetland occupies a small area, is not affected by seasons and regions and is economical and efficient, is particularly suitable to be constructed around factory parks, rural areas and polluted water bodies and can realize the win-win effect of pollution control and economy.

Description

technical field [0001] The invention belongs to the technical field of ecological restoration, and in particular relates to an industrial construction method for high-efficiency and high-yield constructed wetlands. Background technique [0002] Constructed wetlands can use the triple action of physics, chemistry and biology in the ecosystem to achieve enhanced purification of sewage. Compared with other water quality treatment methods, the use of constructed wetlands for decontamination has the advantages of economical construction, convenient management, and low energy consumption; it has received more and more attention around the world. Constructed wetlands, which take into account decontamination ability and economic benefits, are the development trend of the next generation of structured wetland research and application. [0003] According to the way of water distribution, constructed wetlands can be divided into surface flow wetlands, subsurface flow wetlands and vert...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32C02F3/34A01G31/02A01G31/00A01G9/14
CPCA01G9/14A01G31/00A01G31/02C02F3/327C02F3/34C02F2203/006Y02A40/25Y02P60/21Y02W10/10
Inventor 关保华葛滢常杰
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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