Drainage channel structure for nitrogen and phosphorus treatment for agricultural non-point source pollution treatment

Abstract

The invention provides a nitrogen and phosphorus treatment drainage channel structure for agricultural non-point source pollution treatment, and relates to the field of drainage channels. According to the nitrogen and phosphorus treatment drainage channel structure for agricultural non-point source pollution treatment, the nitrogen and phosphorus treatment drainage channel structure comprises a first section and a second section, a filter box is arranged between the first section and the second section, a prefabricated bottom plate is laid at the bottom of the nitrogen and phosphorus treatment drainage channel structure, and cement baffles are arranged on the two sides of the prefabricated bottom plate; grass planting bricks are laid on side slopes on the two sides of the drainage channel structure for nitrogen and phosphorus treatment, a first porous medium is laid between the two cement baffles in the first section, cobblestones are laid on the first porous medium, ceramsite is further laid on the second section on the basis of the first section, and the first porous medium and the second porous medium are laid on the basis of the second section. Second porous media are laid on the lower portion of the side slope of the drainage channel structure for nitrogen and phosphorus treatment and the two sides of the cobblestones. By adopting the modes of plant planting and microbiological treatment, the water channel has the purification capacity.

Description

technical field [0001] The invention relates to the technical field of drains, in particular to a drain structure used for nitrogen and phosphorus control of agricultural non-point source pollution. Background technique [0002] Agricultural production refers to the production activities of growing crops. Agricultural machinery replaces hand-made farm tools, which liberates the labor force and improves labor productivity; the input of chemical fertilizers and pesticides can promote agricultural output. In the operation of rice, a large amount of water is needed to meet the production of rice. At the same time, the rice planting area has abundant rainfall. For drainage and immediate irrigation of rice, ditches are basically built on one side of the rice field. [0003] Existing canals are basically only for water diversion. But during growing, the fertilizer applied will be washed by rainwater into the drain. Not only has it caused the loss of fertilizer, but the untreate...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a drainage channel structure for nitrogen and phosphorus treatment for the control of agricultural non-point source pollution, which solves the problems of the existing channel with single function and no water purification

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