Building and community rainwater quality-divided treatment process based on waterfront space

Abstract

The invention provides a building and community rainwater quality-divided treatment process based on a waterfront space. The process comprises the following steps of (1) source distributed collection:draining rainwater on a building roof into a rainwater collection well through a rainwater vertical pipe, and draining rainwater on a road surface into the rainwater collection well after treatment by a source purification facility; (2) midway pipe network transportation: collecting rainwater in the rainwater collection well into a rainwater drainage header pipe; and (3) tail end centralized purification: inputting rainwater from the rainwater collection well into a tail end purification facility through the rainwater drainage header pipe for treatment. Compared with the prior art, the schemehas the advantages that initial rainwater runoff pollution can be efficiently reduced on the premise of ensuring the landscape effect of a community, natural accumulation, natural permeation and natural purification of rainwater are realized, quality-divided treatment is carried out on runoff rainwater of roads and roofs in buildings and communities, the engineering cost and the later maintenancecost are reduced, and meanwhile, the drainage safety is realized.

Description

technical field [0001] The invention relates to the field of rainwater treatment, in particular to a water quality treatment process for buildings and communities based on waterfront spaces. Background technique [0002] Buildings and communities are the starting point of the urban rainwater drainage system, occupying nearly 70% of the city's area. In the development and construction of buildings and communities, the original underlying surface has been transformed, increasing the impermeable area of ​​the site, reducing the site's ability to infiltrate and absorb rainwater, and changing the original natural drainage method of the site. The rapid discharge of pipelines increases the peak flow, making the development and construction of buildings and communities a major cause of frequent urban waterlogging. Therefore, with the proposal of the concept of sponge city construction, the construction of buildings and communities with natural accumulation, natural infiltration, an...

AI Technical Summary

Problems solved by technology

This type of practice mainly has the following problems: the quality of runoff rainwater from buildings and residential areas is obviously better than that of road surfaces. Using the same technical measures to treat road and roof runoff water will not only increase the investment cost, but also cause the scale of facilities to be too large. Sunken green space, less room for landscape design in the community, and poor integration with facilities, resulting in poor landscape effects

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