Multistage baffled rainwater garden system used for processing initial rainwater and application of multistage baffled rainwater garden system

Abstract

The invention relates to a multistage baffled rainwater garden system used for processing initial rainwater and application of the multistage baffled rainwater garden system.The system comprises a filter area, multiple stages of baffled areas and an infiltration and reuse area which are sequentially connected in series.A non-overflow partition is arranged between the filter area and the first baffled area.The bottom of the filter area is communicated with the bottom of the first-stage baffled area.Overflow partitions are arranged between the odd-number baffled areas and the even-number baffled areas which are adjacent to the rear ends of the odd-number baffled areas.Non-overflow partitions are arranged between the even-number baffled areas and the odd-number baffled areas adjacent to the rear ends of the even-number baffled areas.The bottoms of the even-number baffled areas are communicated with the bottoms of the even-number baffled areas adjacent to the rear ends of the even-number baffled areas.An overflow partition is arranged between the last stage of baffled area and the infiltration and reuse area.The system can be suitable for gardens, communities, schools, urban green lands and the like, and pollutant in initial rainwater can be effectively processed; meanwhile, processed clean rainwater can infiltrate underground or be collected to be reused, and therefore the runoff volume and the runoff peak value are decreased, and the aims of environment protection and landscape improvements are achieved.

Description

technical field [0001] The invention relates to a multi-stage baffle type rain garden system for treating initial rainwater and its application. Background technique [0002] With the continuous acceleration of urbanization, the problems of urban waterlogging, initial rainwater pollution and black and smelly rivers are becoming more and more serious. These problems seriously affect the life and health of residents. The main reason is that due to the rapid development of urbanization, the water system in the city has been continuously reduced, and the coverage of impermeable pavement has gradually increased, resulting in the infiltration of rainfall runoff through the ground, resulting in serious urban waterlogging in the city after the formation of accumulated water. At the same time, due to the serious problem of urban non-point source pollution, the rainwater runoff washing the road surface will also cause the problem of initial rainwater pollution. Some studies have shown...

AI Technical Summary

Problems solved by technology

However, there are still some shortcomings in the traditional rain garden system, such as the serious decline in the treatment effect in cold climates, and even the problem of plant death; after a period of operation, the soil is polluted and compacted, which affects the infiltration effect; the rainwater of the traditional design method The garden’s removal efficiency of pollutants cannot reach a high level; most of the currently published patents are to improve the runoff reduction effect of the rain garden or to transform the landscape effect, and have not effectively strengthened the treatment of nitrogen pollutants in the initial rainwater Treatment means, there is still a problem that the nitrogen pollution content of the effluent is still high

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