Hydraulic power oxygenation constructed wetland

Abstract

The invention relates to a hydraulic power oxygenation constructed wetland, belonging to the technical field of constructed wetland, waterbody ecosystem restoration and sewage treatment. A plurality of monolater modules of the hydraulic power oxygenation constructed wetland are in a stepped shape to construct the hydraulic power oxygenation constructed wetland; and each level constructed wetland is composed of a water intake device, a wetland main body and a water discharging device. The wetlands in the adjacent two layers are linked with a water intake and discharging connection device so as to ensure that the processed waterbody flows through a first level, a second level...nlevel hydraulic power oxygenation constructed wetland successively and is exhausted after carrying out the n numbered level processing. The invention solves the problems of low dissolved oxygen level of constructed wetland matrix, sludge plugging of the matrix, unstable operation and the like, improves microorganism activity of the bed body, and forms a new sewage processing technology with high efficiency, stability, energy saving and perennial operation. The invention is suitable for the aspects of distributed domestic sewage processing, non-point source control, tail water processing of sewage plant, the waterbody ecological restoration engineering and zoology slope protection.

Description

technical field [0001] The invention relates to a hydraulic oxygen-increasing artificial wetland, which belongs to the technical fields of artificial wetland technology, water body ecological restoration and sewage treatment. Background technique [0002] With the development of my country's economy and the improvement of people's living standards, the pollution of water bodies by daily life and industrial production is gradually deteriorating and expanding. At the same time, with the development of socialist spiritual civilization and the construction of new socialist countryside, people have higher and higher requirements for environmental quality, especially water environment quality. The water quality improvement of a series of natural rivers, urban inland rivers, natural lakes and lakes in urban parks is urgently needed to be solved, and rural non-point source pollution also urgently needs to be controlled. As an ecological sewage treatment technology, artificial wetla...

AI Technical Summary

Problems solved by technology

Constructed wetland is an ecological treatment technology with plants as the core of sewage treatment. It overcomes the shortcomings of traditional processes such as low N / P removal rate, complex process, high cost and complicated operation and maintenance. Treatment of sewage by plant absorption, matrix adsorption, microbial degradation, and nitrification and denitrification

However, due to the biochemical processes such as root zone absorption and microbial degradation in the process of plant adsorption, dissolved oxygen is required. In the current domestic and foreign artificial wetland sewage treatment technology, the hydraulic retention time of sewage in wetland is long, the water flow is relatively stable, and plant roots and fillers are soaked in the wetland for a long time. In the water, the level of dissolved oxygen in the constructed wetland matrix is ​​low, which limits the effect of wetland sewage treatment

At the same time, the silting problem of constructed wetlands has also become one of the important factors restricting the development of constructed wetlands.

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