Filtering ecological concrete drainage channel

Abstract

The invention belongs to the field of non-point source pollution control engineering and discloses a filtering ecological concrete drainage channel. The filtering ecological concrete drainage channel comprises a channel body which is of a concrete structure, and the cross section of the channel body is in a shape of a trapezoid. Filtering boxes are arranged at the bottom of the channel body and distributed at intervals in a staggered mode along the length direction of the channel body. An ecological floating bed and a water body overflowing adjusting valve are arranged in the channel body. The filtering ecological concrete drainage channel is simple in structure, practical, low in manufacture cost, convenient to lay, efficient, simple and convenient to operate and maintain, good in absorbing capacity of nitrogen and phosphorus in farmland runoff water, capable of effectively solving the problem that peripheral water body eutrophication is severe and good in application and popularization.

Description

technical field [0001] The invention belongs to the field of surface source pollution control engineering, and in particular relates to a filtering type ecological concrete drain. Background technique [0002] Farmland non-point source pollution refers to the environment formed by the surface runoff and seepage of farmland through the surface runoff and farmland seepage of nutrients such as nitrogen and phosphorus, pesticides, and other organic or inorganic pollutants during farmland production activities. Pollution mainly includes chemical fertilizer pollution, pesticide pollution, livestock and poultry manure pollution, farmland solid waste pollution, etc. With the continuous increase of fertilizer consumption in the process of farmland planting, the content of nitrogen and phosphorus in farmland soil and the loss of nitrogen and phosphorus continue to increase, resulting in increased environmental pollution of farmland soil and water bodies. At present, agricultural non-...

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Problems solved by technology

[0004] Aiming at the shortcomings in the prior art, the present invention provides a simple, efficient, practical, economical, easy-to-maintain, and popularized filter-type ecological concrete drainage channel for preventing and controlling farmland non-point source pollution. Difficult to intercept non-point source pollution, effectively intercept N, P and other nutrients in farmland planting drainage, so as to curb the serious eutrophication of surrounding water bodies

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