Shallow water river channel/small watershed ecological treatment system

Abstract

The invention discloses a shallow water river channel / small watershed ecological treatment system. The system comprises anti-impacting biological carpets which are laid on two embankments of a river channel and a plurality of water retaining flow slowing structures which are constructed in the river channel; the water retaining flow slowing structures are arranged in the water flow direction of the river channel sequentially, the water retaining flow slowing structures comprise reinforced ecological dams, underwater forests and wing dam type artificial wet lands, wherein the underwater forestsare constructed on upstream water retaining areas of the reinforced ecological dams, a plurality of the wing dam type artificial wet lands are arranged, the wing dam type artificial wet lands are constructed on downstream water retaining areas of the reinforced ecological dams, the wing dam type artificial wet lands are sequentially and staggeredly arranged in the water flow direction of the river channel, the adjacent two wing dam type artificial wet lands are connected with two river banks of the river channel respectively, and the wing dam type artificial wet lands are arranged to allow the water flow direction of the river channel to always be serpentine. The system has the advantages that the problem of poor shallow water river channel caused by the non-distinguished river channel and lake treatment in China, the water body self-cleaning capability is enhanced, and the long-effect purifying of the river channel is achieved.

Description

technical field [0001] The invention relates to the technical field of environmental engineering water environment treatment, in particular to a shallow water channel / small watershed ecological treatment system. Background technique [0002] As the carrier of urban water systems, urban rivers not only have natural functions such as flood discharge and sewage discharge, but also have comprehensive functions such as hydrophilicity, leisure, ecology, and landscape. However, with the acceleration of urbanization in our country, the impact of man-made damage on rivers is more serious. Some rivers are turbid to varying degrees, dry all the year round, lack of clear water, eutrophication makes it difficult for some aquatic animals and plants to survive, and even mixed with fishy smell and other problems. , It takes a long time and a lot of money to make the shore green and the scenery beautiful, but in the end it is too difficult to improve the water quality, and there is an embarr...

AI Technical Summary

Problems solved by technology

However, with the acceleration of urbanization in our country, the impact of man-made damage on rivers is more serious. Some rivers are turbid to varying degrees, dry all the year round, lack of clear water, eutrophication makes it difficult for some aquatic animals and plants to survive, and even mixed with fishy smell and other problems. , it takes a long time and a lot of money to make the shore green and the scenery beautiful, but in the end, it is too difficult to improve the water quality, and there is an embarrassing situation of beautiful scenery and sewage, and it is difficult to achieve satisfactory results.

[0003] The technologies commonly used in river channel management are mainly focused on the research and application of single technologies such as dredging, water diversion, aeration, chemical flocculation, biological purification, etc., and it is difficult to effectively integrate and apply them. At the same time, lakes and rivers are common in China River management adopts a set of governance technology models - "source control and sewage interception - water quality improvement - ecological restoration", without a more targeted core governance technology model for the characteristics of changes in water level and flow velocity in the river, which will easily lead to In the treatment of rivers, there is no distinction between pollution, medium and clean, and the method of "cooking in one pot" is adopted, resulting in increased costs and reduced efficiency.

[0004] Chinese patent CN104674752B discloses "A Urban River Management System and Its River Improvement Method", which is characterized by adopting the methods of "segmentation and governance", "dividing water and governance", "cross-strait interconnection" and "three river diversions" Urban rivers with high flood control requirements, but for shallow rivers, small watersheds and rivers with low flood control standards, the engineering volume is relatively large and unnatural, resulting in certain limitations in its governance

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