River course laying method for substantially increasing self cleaning capacity of city inland river

Abstract

The invention belongs to the field of pollution treatment, and discloses a river course laying method for substantially increasing the self cleaning capacity of a city inland river. The river course laying method is characterized by giving different functions to different segments of a river course through segmentally distributing a flotage removing zone, an oxygen enriching and desilting zone and a comprehensive treatment zone by utilizing inner space of the river course. The river course laying method comprises the following steps: laying grilles for removing flotage in the river course and a water retaining dam for laying a foundation for enriching oxygen in river water; controlling the running of the grilles according to the quantity of the flotage in the river course; laying gravel, thus increasing the content of dissolved oxygen in the river water through rapid scouring of the river water, and achieving the effect of enriching oxygen in the river water; planting plants which are in cloning propagation and can resist water logging so as to strengthen a river bed and obstruct silt in the river water at the same time, thus achieving the effect of primary desilting, and forming the oxygen enriching and desilting zone; laying the comprehensive treatment zone of the river water, thus substantially reducing pollutants in the river water through all components in a water ecological system. According to the river course laying method disclosed by the invention, the effects of flotage removing, oxygen enriching and desilting, and pollutant removing are respectively achieved, and stabilization or improvement of the water quality is finally realized.

Description

technical field [0001] The invention belongs to the field of pollution control, and in particular relates to a river layout method for greatly improving the self-purification capacity of urban inland rivers. Background technique [0002] The root cause of black and odorous water or substandard water is that the amount of pollution exceeds the self-purification capacity of the water. The concept of "external source control + internal source control + improvement of self-purification capacity + comprehensive management" should be followed in the comprehensive improvement of rivers. External source control is mainly to cut off pollution sources and comprehensively control point source pollution and non-point source pollution; internal source control is to remove and solidify internal source pollutants (such as river dredging, etc.); improving self-purification capacity is to connect water systems and maintain Improve the fluidity of water bodies, restore the self-purification ...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the problems existing in the existing technology are: existing methods for improving the self-purification capacity of urban inland rivers have problems such as large space requirements for ecological restoration and high technical requirements, resulting in poor river purification capacity

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