Composite surface flow wetland system

Abstract

The invention provides a composite surface flow wetland system, which comprises a water distribution channel used for water inflow, water collection channels positioned on the two sides of the water distribution channel and used for water discharge, and a plurality of deep grooves used for communicating the water distribution channel with the water collection channels, wherein the adjacent deep grooves are communicated through at least two shallow grooves to form a plurality of planting base cells; a mixed planting zone in the middle and emerged plant zones at the periphery of the mixed planting zone are arranged in each planting base cell; and emerged plants and submerged plants are interplanted in the mixed planting zones. Due to the stereoscopic plant configuration of the composite surface flow wetland system, the solar radiation can be effectively utilized, the plant photosynthesis in unit area can be improved, the habitat for growth can be enlarged, the redox capability of a wetland substrate can be improved, the purifying efficiency of the surface flow type artificial wetland can be improved, and the engineering construction and operation costs can be saved.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a composite surface flow wetland system based on bionics. Background technique [0002] At present, public water bodies such as lakes and rivers have been polluted to varying degrees. In order to ensure the safety of drinking water sources, it is necessary to improve the water quality of existing water sources through the construction of backup water sources or through purification projects, so as to avoid the growing water supply risks and eliminate or reduce them. The impact of water pollution incidents on the lives of residents. As a kind of purification project, constructed wetland can not only ensure the safety of drinking water sources, but also provide landscape effects. Through the adsorption and enhanced purification of the roots, stems, leaves and attached microorganisms of aquatic plants in the wetland, the adsorption and interception of water in the ...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the general surface flow wetland base generates a uniform hydraulic load through topographical construction, and only emergent plants are planted. The plant configuration mainly focuses on screening plants with a single strong purification ability and organic combinations between different plants. Little consideration has been given to the construction of habitat diversity, different plant heights, sufficient and reasonable acceptance of solar radiation, and the enhancement of photosynthetic capacity per unit area, especially the simultaneous planting of emergent and submerged plants on the same planting base in wetland units. Configuration, water distribution, water delivery and water collection systems occupy a large area, and the actual effective use area and utilization efficiency of the wetland purification system are relatively low

To sum up, various surface flow wetlands now have obvious defects such as single habitat conditions, low effective use area of ​​wetland systems, insufficient consideration of plant three-dimensional configuration, etc., and the water purification ability of constructed wetlands will decrease after plants wither in winter. A Surface Flow Wetland System with Efficient Purification Effect

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