Ecological system for reducing pollutants at into-lake rain discharge outlet

Abstract

The invention discloses an ecological system for reducing pollutants at an into-lake rain discharge outlet. The system comprises an into-lake drain outlet; an inspection well is arranged at the into-lake drain outlet and is internally provided with a solid waste collection hanging basket; a biological film treatment zone is arranged at the periphery of the into-lake drain outlet, and the two endsof the biological film treatment zone extend to the lakeshores at the two sides of the into-lake drain outlet; the biological film treatment zone comprises floating beds which are sequentially connected, and hygrophytes are planted on the floating beds; artificial aquatic mats are hung on the floating beds; the floating beds are connected with floating bed foundation piles by means of nylon ropes;aquatic plants are planted in an area defined by the biological film treatment zone, and the area defined by the biological film treatment zone is also provided with a fountain aerator. The ecological system provided by the invention is simple and convenient to use, simple in construction technology and free from civil engineering content. The ecological system is wider in application scope and easy to maintain. The ecological system has a rich Water landscape effect while reducing pollution load.

Description

technical field [0001] The invention mainly relates to the professional fields of environmental engineering and ecology, and in particular relates to an ecological system for reducing pollutants in lake rainwater discharge outlets. It is suitable for small and medium-sized lake water bodies with sewage outlets, and can reduce pollutants entering the lake while enriching the water surface landscape. Background technique [0002] Natural water bodies, especially small and medium-sized lakes in cities, have become a good place for people to get in touch with and get close to nature. These lakes often shoulder the functions of water bodies for people's leisure and entertainment. However, due to the development of cities, small and medium-sized lakes in cities often become places for sewage discharge. Sewage outlets and rainwater outlets carry various non-point source runoff pollutants directly into the lake, polluting the water quality, and further damaging the lake's ecosystem,...

AI Technical Summary

Problems solved by technology

[0003] The first essence of water pollution control and ecological restoration of small and medium-sized urban lakes is to control water first, and then to intercept pollution. However, some urban lakes are often located in the core areas of cities and towns. Extensive confluence outlets, coupled with well-developed surrounding businesses and dense residential buildings, make it relatively difficult to promote the work of sewage interception and management.

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