Heavily polluted river habitat reconstruction process

Abstract

The invention relates to a heavily polluted river habitat reconstruction process, which comprises the following steps of sequentially dividing a heavily polluted river flowing through cities and towns into a primary purification section, an intensified purification section and a stability maintenance section from two ends to the center by region; clearing bottom sediment and reconstructing riverbeds; arranging a water flow slow down device on the primary purification section; arranging a porous ecological wall between the stability maintenance section and the intensified purification section; arranging a plurality of artificial seaweeds sections and a plurality of artificial aeration sections in the intensified purification section; planting variety of submerged plants on the riverbed of the stability maintenance section; when the water level of the stability maintenance section is maintained in 1.3-1.8m, arranging a three-dimensional ecology platform on a water surface, planting floating-leaved plants on the bottom part of a water body, and stocking variety of fishes and snails in the water body. The method provided by the invention is applied to ecological management of common rivers, especially ecological management of tidal waterway city heavily polluted rivers, and is a scientific, effective and environment friendly management method with sustainable development.

Description

technical field [0001] The invention relates to the technical field of river channel ecology, in particular to a high-pollution river channel habitat reconstruction process. Background technique [0002] A large amount of pollutants in the river channel flowing through the population gathering area are directly discharged into the river without treatment, causing serious pollution to the water body. Especially in cities, in order to meet the needs of flood discharge, river reconstruction is only considered from an engineering point of view, the river is cut and straightened, and the three sides of the river are solidified with cement and steel. The living environment of organisms disappears, and its ecological function and purification ability also degrades, which directly leads to the disappearance of a large number of organisms in the river, and the domestic sewage, catering wastewater, production sewage, industrial sewage of some enterprises and agricultural non-point sou...

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Problems solved by technology

[0003] Tidal cities also face another problem, that is, seawater intrusion will seriously affect the growth and reproduction of freshwater organisms in the river and destroy the ecological balance in the river.

[0004] In view of the above description, there is an urgent need for a habitat reconstruction process suitable for highly polluted rivers, which can solve the serious pollution of rivers, improve the ecological environment of riverside and coastal areas, create a beautified urban environment, and effectively avoid the impact of seawater intrusion on freshwater organisms in restored rivers.

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