Plant grid used for improving graff water quality

Abstract

The invention belongs to the technical field of surface source pollution (namely non-point source pollution), and particularly relates to a plant grid used for improving the graff water quality. The plant grid is mainly composed of a grid body, an external end stabilizing wall and a filler area, and the external end stabilizing wall comprises a water inlet wall, a water drainage wall and the like. The whole plant grid is built in a trench or an inland river, the grid is arranged at the front end of the trench or the inland river, the external end stabilizing wall is of a reinforced-concrete or brick-concrete structure, and is arranged at the downstream part of the grid. The plant grid is used for growth of microorganisms and aquatic plants, improves the runoff quality of the cement hardened trench and the inland river, and mainly solves the problems that due to blank and riverbed hardening of the trench and the inland river, plants grow difficultly in the trench or the inland river, the smooth inner boundary is lack of media where the microorganisms adhere and grow, cement products and concrete products block a runoff from making contact with soil and the self purification capacity of soil is lost. The plant grid is applicable to processing of countryside agricultural runoffs and urban runoffs, and particularly applicable to processing of runoffs of the cement hardened trench and the inland river in the future.

Description

technical field [0001] The invention belongs to the technical field of surface source pollution (non-point source) control, and in particular relates to a plant grill for improving the water quality of rivers and canals. Background technique [0002] In recent years, cement and concrete products have been widely used in the construction of urban and rural drainage channels and inland rivers, which prevents the growth of weeds in channels and inland rivers, facilitates the smooth drainage of channels and inland rivers, and ensures the flood discharge of channels and inland rivers. At the same time, cement The hardened canal also effectively maintains the water and soil erosion of the canal and inland river, reduces the labor and mechanical expenses caused by dredging the canal and inland river, and reduces the management cost. But at the same time, the hardening of ditches and inland river embankments and riverbeds makes it difficult for plants to grow in them; the smooth inn...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a plant grid for improving the water quality of river canals (including inland rivers or ditches), so as to solve the problem of hardening of ditches and inland river embankments and riverbeds, making it difficult for plants to grow in them, and the smooth inner interface lacks the attachment and growth of microorganisms The medium, cement and concrete products cut off the contact between the runoff and the soil, and lose the self-purification ability of the soil, etc.

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