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Ventilating and baffling artificial wetland simulator

A technology of artificial wetlands and simulation devices, which is applied in the direction of sustainable biological treatment, water/sludge/sewage treatment, biological water/sewage treatment, etc., can solve the problems of low removal rate and large changes, and improve the removal effect and plant Vigorous growth and increased hydraulic retention time

Inactive Publication Date: 2007-11-07
ZHEJIANG UNIV
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Problems solved by technology

The database shows that the removal rate of BOD and COD in wetland can reach 80-90%, but the removal rate of nitrogen and phosphorus is relatively low, and the change is also large, generally around 50%.

Method used

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  • Ventilating and baffling artificial wetland simulator

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Embodiment Construction

[0024] The present invention mainly considers the following factors. 1) General free surface flow constructed wetlands have the problems of mosquitoes and flies and odors in summer, which greatly reduces the ornamental value of constructed wetlands. Therefore, the submerged flow water distribution adopted by the present invention is not only beneficial to the purification of sewage by plant roots, but also increases the appreciation of the constructed wetland. 2) Generally, the sewage in the vertical subsurface flow wetland system flows vertically from the surface of the wetland to the bottom of the packing bed, and the hydraulic retention time is short, which is not conducive to the sufficient purification of sewage in the wetland. Therefore, the present invention adopts the baffle method to greatly increase the hydraulic retention time of the sewage in the wetland, so that the wetland can fully exert its potential and effectively treat the sewage. 3) The water body in the g...

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Abstract

The present invention discloses one kind of ventilating and baffling artificial wetland simulator with one ventilating and baffling artificial wetland body set inside an organic glass container. The ventilating and baffling artificial wetland body has a clay layer with a water distributing pipe connected through the first cut-off valve and a liquid flowmeter to a water pump in a water tank, a sandstone layer, a cinder layer, a gravel layer, a water outlet pipe with the second cut-off valve, the third baffle between the gravel layer and the cinder layer, and the second baffle between the cinder layer and the sandstone layer and with an air distributing pipe connected through a needle valve and a gas flowmeter to an air pump, the first baffle between the sandstone layer and the clay layer. The present invention is suitable for simulating sewage treatment in artificial wetland.

Description

technical field [0001] The invention relates to an aeration and deflection artificial wetland simulation device. Background technique [0002] With the development of social economy and the sharp increase of population, various pollutions also increase accordingly. Among them, water pollution (industrial wastewater, domestic sewage, agricultural non-point source sewage) is the most serious. According to relevant data, 85% of the rivers and lakes in my country have been polluted to varying degrees. In 1994, the national urban wastewater discharge was as high as 36 billion tons. 80% of the waste water is directly discharged into rivers and lakes without treatment. Since the beginning of the 21st century, people have paid more attention to the improvement of the quality of life. Both the government and individuals have recognized the seriousness of the water pollution problem, which requires finding an effective way to solve the problem. In recent years, with the implementatio...

Claims

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Application Information

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IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 李松陈英旭曹志洪
Owner ZHEJIANG UNIV
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