Ecological drainage ditch with sewage interception and water control functions and construction method thereof

Abstract

The invention relates to the technical field of drainage ditch construction, in particular to an ecological drainage ditch with sewage interception and water control functions and a construction method thereof.The ecological drainage ditch comprises a water separation ditch, the water separation ditch is used for separating farmland sewage, and a plurality of drainage openings are formed in the water separation ditch in the length direction and used for draining water; a water outlet is formed in the side, away from the water outlet, of the water separation channel, a sewage intercepting and water controlling device is installed at the water outlet, a self-embedded retaining wall is arranged on the side, away from the water outlet, of the water outlet, a drainage channel is arranged on the side, away from the water separation channel, of the self-embedded retaining wall, and a plurality of filter dams are arranged on the drainage channel in the length direction. The method has the advantages that the nitrogen and phosphorus adsorption and removal capacity is enhanced, interception and pollution control are achieved, environmental protection and energy conservation are achieved, and the growth requirements of terrestrial plants are met.

Description

technical field [0001] The application relates to the technical field of drainage ditch construction, in particular to an ecological drainage ditch with the function of intercepting pollution and controlling water and a construction method thereof. Background technique [0002] In agricultural production activities, due to the use of a large amount of fertilizers and pesticides, nutrients such as nitrogen and phosphorus or pollutants such as pesticides cause serious pollution to the water environment through surface runoff and seepage of farmland. In order to prevent the breeding of algal blooms caused by farmland drainage, traditional construction often sets up riverside ecological ponds or artificial wetlands and other purification ecological facilities at the outlets of agricultural irrigation canals, but it needs to occupy forest land, farmland and even the blue line of the river, which makes construction difficult for reasonable and effective layout. , and the conventio...

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Problems solved by technology

In order to prevent the breeding of algal blooms caused by farmland drainage, traditional construction often sets up riverside ecological ponds or artificial wetlands and other purification ecological facilities at the outlets of agricultural irrigation canals, but it needs to occupy forest land, farmland and even the blue line of the river, which makes construction difficult for reasonable and effective layout. , and the conventional drainage system is uncontrolled, it only meets the requirements of high agricultural yield and drainage from the aspect of drainage, without considering the effect of drainage ditches to purify water quality; although the traditional technology has played a certain role in the ecological restoration of farmland and the improvement of water environment However, there are still problems such as incomplete ecological transformation of ditches, single species of aquatic plants, unpurified water quality, and plants withering and dying due to lack of water in dry seasons.

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