Research method of plant diversity configuration scheme of constructed wetland in Northeast wetland

Abstract

A research method of a plant diversity configuration scheme of a constructed wetland in Northeast wetland relates to environmental engineering constructed wetland living sewage treatment technology. The research method aims at the problems of dispersed pollution sources, unideal winter low temperature treatment effect and the like of sewage treatment in northern small towns in China, by the use of constructed wetland treatment technology, investment management fees can be effectively reduced, but application prospects of constructed wetlands in Northeast area in China are limited by single plant planting specie, poor low temperature ecological stability and the like. By survey of plant ecotype, habitat water level characteristic, community dominant position and other factors of plants in Northeast area, a combination of a natural type of domesticated natural aquatic plants is introduced, a plant configuration scheme suitable for application in north is determined, the constructed wetland in the plant configuration scheme has the advantages of good purifying effect, high ecological stability, large pollution load bearing capacity, and the like, and has some landscape effects.

Description

technical field [0001] The invention belongs to the field of environmental ecology, and relates to a method research on the application of plant diversity configuration in artificial wetlands in Northeast China. Background technique [0002] According to the provisions of Chapter 27, Chapter 7 of the "National New Urbanization Plan (2014-2020)", improve the system and mechanism to promote the green, circular and low-carbon development of urbanization, implement the most stringent ecological environment protection system, and form a resource-saving At the same time, establish and improve the environmental protection management system that strictly supervises the discharge of all pollutants. However, the small towns in northern my country have underdeveloped economies and relatively low regulatory capabilities. Domestic sewage is mainly composed of organic matter, nitrogen, phosphorus and other pollutants. Constructed wetlands have become the preferred sewage treatment method in...

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Problems solved by technology

[0006] The present invention aims at the problems of low treatment efficiency, poor anti-pollution load impact capability, poor ecological stability and the like when single-planted artificial wetlands treat secondary effluent of sewage treatment plants in Northeast China, and provides a plant configuration scheme suitable for application in Northeast China. It has higher N and P removal rates and ecological stability while taking into account the landscape effect, which is conducive to improving the operation effect and operation stability of the secondary effluent of small town sewage treatment plants in Northeast China

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