Rainwater comprehensive utilization system

Abstract

The invention relates to the technical field of municipal engineering, in particular to a rainwater comprehensive utilization system which is used for collecting, storing, seeping and draining rainwater integrally. A silica sand water filtering ditch, a setting sand distributing pond, a purifying and storage pond and an infiltration well are sequentially connected to one another through a pipeline; and the infiltration well is connected to drained water through a pipeline. The rainwater comprehensive utilization system has comprehensive functions of rainwater collecting and filtering, purifying and storing, oxygen supplying and quality guaranteeing, infiltration and supplementing, overflowing draining, storage adjustment and recycling; land resources can be protected; peak discharge is reduced; flood peak time is delayed; rainwater is filtered and purified thoroughly; the rainwater comprehensive utilization system is used for greening a city, flushing a road and supplementing underground water; the moisture content and the air humidity of soil are increased; natural hydrological cycle is maintained; and an ecological environment is repaired.

Description

technical field [0001] The invention relates to the technical field of municipal engineering, in particular to a rainwater comprehensive utilization system, in particular to a comprehensive utilization system that integrates rainwater collection, storage, infiltration and drainage. Background technique [0002] At present, the global energy and water resources are scarce, and there are many water-deficient places around the world. In many water-deficient areas, people's drinking water has become a problem. In order to solve the water shortage problem in these areas, many areas have drilled wells, but groundwater is still in short supply. These Wells are often maintained by rainwater, river water, etc. The water quality has not been filtered and is not suitable for drinking; the water can be clearer after a long period of sedimentation, but the water tends to become smelly and deteriorate after a long time; and the well water maintained by rainwater will soon seep into underg...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is that relying on municipal rainwater pipes to collect rainwater in the current technology, the rainwater is quickly drained and wastes water resources. Most of the existing collection systems are assembled with polyethylene and poured with concrete, and the production materials need to consume a lot of rocks, Land and other resources are developed or mined at the cost of destroying the local ecological environment, and if polyethylene is decomposed, it will easily cause soil or groundwater pollution, and it mainly relies on gaps, large pores, or materials with poor water permeability, which seriously affects rainwater. Infiltration, stagnant storage, poor water quality, and low dissolved oxygen content can easily cause groundwater pollution.

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