Water level variable composite constructed wetland device

Abstract

The invention belongs to the field of artificial wetland, and relates to a composite horizontal subsurface flow constructed wetland device. The device comprises a buffering selecting water distribution area, a water level variable treatment area, a biological trickling filter area and a water outlet area. The buffering selecting water distribution area comprises a water distribution area front baffle, a water distribution area rear baffle, a water distribution area left baffle, a water distribution area water distribution plate, a water distribution area bottom plate and a water inlet pipe; the water level variable treatment area comprises a treatment area front baffle, a treatment area rear baffle, a treatment area right baffle, a treatment area bottom plate, a siphon outer sleeve and a siphon inner water outlet pipe; the biological trickling filter area comprises a trickling filter area front baffle, a trickling filter area rear baffle, a trickling filter area left baffle, a trickling filter area right baffle, a trickling filter area lower water distribution plate, a trickling filter area upper water distribution plate and a trickling filter area vent hole; and the water outlet area comprises a water outlet area front baffle, a water outlet area rear baffle, a water outlet area left baffle, a water outlet area right baffle, an inclined bottom plate, a water outlet pipe and awater outlet area vent hole. The constructed wetland provided by the invention can improve the degradation efficiency of organic pollutants and nitrification efficiency of nitrogen.

Description

technical field [0001] The invention belongs to the field of constructed wetlands, and relates to a composite horizontal subsurface flow constructed wetland device capable of optimizing microbial population structure, impact load resistance, autonomously controlling the operating water level, and having the function of biological filtration. Background technique [0002] Constructed wetland is a biological water treatment technology, which can deal with various pollutants including nitrogen, phosphorus, organic matter and heavy metals. In terms of water pollution control, constructed wetlands have the advantages of low construction and operation and maintenance costs, simple operation, easy management, and good effluent quality. They are more suitable for the prevention and control of non-point source pollution and become a beneficial supplement to traditional sewage treatment processes. Constructed wetlands are divided into subsurface flow and surface flow constructed wetla...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the above-mentioned problems existing in the existing horizontal subsurface flow constructed wetland sewage treatment technology, and provides a method that can realize the autonomous control of the water level in the constructed wetland, has the function of biological filtration, strengthens the efficiency of reoxygenation, and improves the degradation of organic pollutants and nitrogen nitrification. High-efficiency composite horizontal subsurface flow constructed wetland device

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