Landscape-type multifunctional three-dimensional artificial wetland

Abstract

The invention provides a landscape-type multifunctional three-dimensional artificial wetland, and relates to a sewage treatment structure formed by connecting multiple layers of artificial wetland units in series. Each layer of the artificial wetland unit comprises a water distribution groove, a wetland main body and a water discharge groove; the artificial wetland units are positioned in a building formed by floor surfaces and beam columns so as to form a three-dimensional structure arrayed as the shape of floors; the water distribution grooves and water discharge grooves of the artificial wetland units of the adjacent floors are opposite in directions; the wetland main body comprises wetland plants and matrix. The landscape-type multifunctional three-dimensional artificial wetland is constructed by stacking the existing artificial wetlands in a three-dimensional manner so as to be shaped like the floors, so that the land occupation area is greatly reduced; the treatment of seepage-proofing areas can also be reduced. Thus, the construction cost of the artificial wetland is lowered. Compared with the existing artificial wetland, the landscape-type multifunctional three-dimensional artificial wetland provided by the invention has better natural aeration functions and can be used for oxygenating sewage well because waterfall-type water dropping modes among the floors can be adopted. The landscape-type multifunctional three-dimensional artificial wetland can perform thermal insulation to a certain extent, so that the difficult problem that the treatment effect of the traditional artificial wetland is decreased in winter due to the fact that the temperature is too low is solved.

Description

technical field [0001] The invention relates to a sewage treatment structure, in particular to a landscape-type multifunctional three-dimensional artificial wetland. Background technique [0002] Constructed wetlands are defined as artificially designed and constructed complexes composed of saturated substrates, emergent and submerged vegetation, animals and water bodies. kind). [0003] At present, constructed wetlands are divided into three types: surface flow constructed wetlands (SFW), subsurface flow constructed wetlands (SFS) and vertical flow constructed wetlands (VCW). Subsurface flow constructed wetlands are the most widely studied and applied types in various countries. [0004] Constructed wetland system is a semi-open and semi-closed ecological system, which forms a good internal circulation, low investment, low construction and operation costs, about 1 / 10 to 1 / 5 of the cost of traditional sewage treatment plants, and the effect of sewage treatment Obviously, t...

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Problems solved by technology

[0005] By searching the literature of the past ten years, it is found that the problem of the large area of ​​constructed wetlands has not been effectively solved so far

At present, the optimized combination of matrix, aquatic plants and microorganisms in the constructed wetland is mainly used to improve the efficiency of wetland treatment to reduce the occupied area, but the results are not satisfactory.

Today, when the land is in short supply and the land is expensive, the large area seriously restricts the wide application of constructed wetlands. Therefore, whether the land occupation can be reduced is a crucial issue affecting the future development of constructed wetlands.

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