Roof garden rainwater diversion purification box

Abstract

The invention relates to a roof garden rainwater deep purification system capable of achieving automatic diversion and belongs to the field of sewage treatment. According to the technical scheme, the system comprises a plant box, a water storage tank, an initial rainwater purification module and a later rainwater purification box, and can conduct diversion on initial rainwater and later rainwater according to the amount of rainfall; the initial rainwater purification module comprises a filtering layer, a root-resistant layer, a filter element layer and a bearing layer, and can conduct deep purification on the initial rainwater; the later rainwater purification box conducts simple filtering on the later rainwater; the content of pollutants in the initial rainwater is high, deep filtering is needed, the content of pollutants in the later rainwater is low, and no deep filtering is needed. By means of a diversion mode, the initial rainwater is separated from the later rainwater, the rainwater treatment load of an initial rainwater filtering device is reduced, all modules in the purification system are mutually independent, assembly is simple, maintenance is convenient, and all the components can be quickly replaced and washed; the system consumes no energy, the rainwater treatment function is achieved and the system further has a landscape value.

Description

technical field [0001] The invention relates to the field of rainwater purification, in particular to a roof garden rainwater collection and purification box. Background technique [0002] Urban building clusters encroach on a large area of ​​the original ecological green space, block the infiltration of rainwater, and increase the surface rainwater runoff, especially the initial rainwater, which carries a large amount of pollutants and directly pollutes urban water bodies; hard roofs exacerbate the urban heat island effect, It affects people's life and health, especially in the hot season. The high temperature of the city will inevitably increase the energy consumption of indoor cooling; in addition, the monotonous color of the roof of the building seriously weakens the aesthetic feeling of the city and weakens the artistic charm of the city. In order to comply with the call of low-carbon life and respond to the national sponge city construction, the roof garden constructio...

AI Technical Summary

Problems solved by technology

[0004] At present, there is a rainwater collection and utilization system for roof gardens, including rainwater collection tanks, filter planting layers, aquifers, etc. After being treated by the filter planting layer, the water enters the aquifer or is discharged from the water outlet; The diversion problem, especially the high pollutant content of the initial rainwater, requires deep filtration; the low pollutant content of the later rainwater itself does not require deep filtration, and the hydraulic load of the initial rainwater purification module should be reduced; in addition, the existing rainwater collection system is a closed space , It is not easy to clean and rinse after the matrix layer and filter layer are clogged, and the filter element cannot be replaced, which reduces the purification efficiency and effect of rainwater; in addition, it is impossible to empty the water storage tank, and the water in the aquifer is easy to rot, which affects the storage of rainwater. water quality

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