Ecological landscape revetment for river water quality control

Abstract

The invention relates to an ecological landscape revetment for river water quality control. The ecological landscape revetment comprises an aeration device as well as a base cushion layer and a plurality of module assembling layers which are arranged adjacent to a river revetment and from bottom to top, wherein a staircase structure extending from top to bottom is formed by the base cushion layerand the module assembling layers; each module assembling layer comprises a filler layer and an enclosing support layer surrounding the outer periphery of the filler layer; flow guiding holes are formed in each module assembling layer except the uppermost module assembling layer along the vertical direction and the horizontal direction in a penetrating manner; and the aeration device comprises an aerator on the river bank, an aeration branch pipe embedded in the lowermost module assembling layer and an aeration main pipe in fluid communication with an air outlet of the aerator and an air inletof the aeration branch pipe. The ecological landscape revetment disclosed by the invention not only has the functions of protecting the bank and purifying water, but also has the functions of increasing the dissolved oxygen in the water body through the aeration device and enhancing the pollutant removing effect.

Description

technical field [0001] The present disclosure relates to the technical field of environmental engineering, in particular to an ecological landscape revetment used for river water quality control. Background technique [0002] In recent years, my country has fully launched urban black and odorous river improvement projects, and incomplete interception of sewage is the main reason affecting the water environment of urban rivers. With the rapid development of the economy, the difficulty of sewage interception has further increased, resulting in the imperfection of urban sewage interception, resulting in the intrusion of various point and non-point sources of pollution such as urban domestic sewage, agricultural sewage, domestic garbage and initial rainwater. The nutrient content of the river water is too high and the dissolved oxygen is too low, so that the water body gradually loses its self-purification ability. In addition, the fluidity of some tributary water bodies is sma...

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Problems solved by technology

[0004] In the process of river improvement, the use of artificial wetlands and artificial medium biological ropes as the center of gravity to comprehensively control river water bodies still cannot overcome the following four problems: 1. There is no construction space for sewage interception pipes and pool structure facilities in wetlands; 2. .It is difficult to avoid secondary leakage, difficult maintenance and poor landscape for sewage interception and storage pipes in the river; 3. The artificial media water purification equipment and materials arranged in the riverbed are likely to cause riverbed siltation, which also has a certain impact on river navigation; 4. Water quality control and Slope protection is separated, both sides of the river are hard revetments and there are many outfalls, the form is rigid and the landscape is poor, which isolates the ecological circulation path and does not have the function of ecological purification

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