Large-area constructed wetland treatment system and treatment method

Abstract

The invention discloses a large-area constructed wetland treatment system and a treatment method. The large-area constructed wetland treatment system comprises a plurality of treatment units; a constructed wetland is divided into a plurality of areas, any area is provided with a plurality of treatment units in an array mode, and the treatment units are inserted into mud at the bottom of the constructed wetland; each treatment unit comprises a plurality of annular pieces which are concentrically arranged in a sleeving manner, the annular pieces are respectively marked as a first annular piece,a second annular piece, a third annular piece... and an Nth annular piece along the tangential direction, any annular piece comprises a plurality of flexible plates which are arranged at intervals, and a plurality of through holes are formed in each flexible plate at intervals; a gap between every two adjacent annular pieces is adopted to form a treatment area, a water inlet piece is arranged on one side of each treatment area, water is injected into the treatment areas through water inlet pieces, and the water sequentially flows through the plurality of treatment units; the two flexible plates at the corresponding positions of the two adjacent annular pieces in any treatment unit are connected in a matched mode to form an adjusting piece, and the adjusting piece can adjust the capacity ofthe corresponding treatment area.

Description

technical field [0001] The invention relates to the fields of artificial wetland treatment and water quality treatment, in particular to a large-area artificial wetland treatment system and treatment method. Background technique [0002] Wetland is an important ecosystem on the earth. It can not only regulate water storage, regulate climate, provide a good habitat for rare animals, but also purify sewage. Constructed wetland is a comprehensive ecosystem. It uses the symbiosis of species in the ecosystem. , The principle of material recycling and regeneration, the principle of structure and function coordination, under the premise of promoting the virtuous cycle of pollutants in wastewater, give full play to the production potential of resources, prevent environmental re-pollution, and obtain the best benefits of sewage treatment and resource utilization. The plants in the constructed wetland can also transport oxygen to the water body and increase the activity of the water b...

AI Technical Summary

Problems solved by technology

The accumulation of a large amount of clogging substances on the surface and upper layers of the wetland not only has a great impact on the hydraulic retention time of the wetland, but also causes problems such as surface flow and short flow in the wetland, thus affecting the treatment effect of the wetland on sewage

[0003] Traditional artificial wetlands are not suitable for large-scale treatment due to their poor water mobility, and in the process of treatment, different treatment methods for different areas cannot be used to treat predetermined indicators, and the treatment effect is poor. In addition, it is impossible to use flexible The swing of the plate can flexibly adjust the capacity of the treatment area or the water flow rate. There are no flexible plates of different sizes, which cannot play a certain role in diverting water, resulting in water accumulation. Finally, the height of the flexible plate cannot affect water. It has a certain diversion effect, so that the water cannot flow along the predetermined path, and it cannot evacuate or gather water, and the use effect is poor

Images