Full-section water wetland purification system suitable for normal water level of river

Abstract

The invention discloses a full-section water wetland purification system suitable for a normal water level of a river. The system comprises four parts, namely an overflow weir, a water distribution dike, a wetland for purifying water and a main flood period overflowing river. In low water seasons and the normal water level, all the water from the upstream flows through the wetland, thus the system can play a role in purifying the water; and at a flood period, the water level exceeds the overflow weir, the water flows through all sections, a narrow trapezoidal diversion port constructed in the system plays roles of water bundling and damming during the flood, the resistance is higher if the flood is greater, and more flood is compelled to flow to the wider and tendency-along flood discharge trunk river so as to reduce the flood flow of the wetland on the premise of not obstructing the flood discharge capacity and effectively protect the wetland. Moreover, according to the specific terrain of the river, structure forms of the wetland purification system can be connected in series so that the river water can be subjected to multistage purification. The construction method can be used for effectively purifying the water.

Description

technical field [0001] The invention relates to a full-section water wetland purification system suitable for non-navigable rivers with relatively gentle water flow under normal water levels, and belongs to the field of river water environment management and ecological restoration. Background technique [0002] The basic components of a river include banks (levees), river beds, and channel water bodies. For a long time, experts and scholars have proposed many technologies and methods for in-situ pollution prevention and ecological restoration of rivers according to the different characteristics of the three. For the river bank (levee), various ecological revetment technologies and methods have been developed; for river water bodies, technologies and methods such as biologically enhanced purification and aquatic plant restoration have been proposed; for river beds, technologies and methods for ecological dredging to reduce endogenous pollution have been proposed. [0003] Ge...

AI Technical Summary

Problems solved by technology

There are no literature reports on how to use the river bed to construct wetlands in situ, and then purify the river water.

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