Ecotype rainwater quality-divided accumulation and storage system and building method for hilly region

Abstract

The invention relates to an ecotype rainwater quality-divided accumulation and storage system and building method for the hilly region. The system comprises preposition ecological grass planting trenches, an initial rainwater flow abandoning device, a preliminary filtering and water collection integrated device and a plurality of accumulation and storage filtering pools which are separated from the ground surface and sequentially lowered in the direction of a slope. The operation and building method includes the steps that ground rainwater enters the initial rainwater flow abandoning device after flowing through the ecological grass planting trenches, after the rainwater flow abandoning device is full, later rainwater runoff is accumulated on the preliminary filtering and water collection integrated device, rainwater is gathered to a discharging opening after being preliminarily filtered by the preliminary filtering and water collection integrated device and then enters the multiple accumulation and storage filtering pools which are sequentially lowered in the direction of the slope, available water of all levels of water quality is obtained after multiple times of accumulation, storage and filtering, and it is convenient for users to use the water. By means of the system, the terrain can be utilized to achieve power-free preliminary flow abandoning, preliminary and deep filtering, accumulation and storage and utilization.

Description

technical field [0001] The invention belongs to the field of water conservancy engineering and municipal engineering, and in particular relates to an ecological rainwater quality collection system and method in hilly areas. Background technique [0002] Water resources are an important natural resource indispensable to the development of the national economy. In a narrow sense, water resources refer to the amount of fresh water that can be restored and renewed year by year. One of the important components of the source of fresh water is surface water, which is formed by the confluence of rainfall. [0003] For hilly areas, most of the current collection and utilization of surface rainwater is limited to agricultural irrigation. A large amount of rainfall evaporates, seeps and flows into rivers every year, and cannot be used reasonably and effectively. However, with the continuous deepening of my country's urbanization process and the improvement of rural residents' living s...

AI Technical Summary

Problems solved by technology

However, there is currently no rainwater quality storage system that can meet different water quality requirements for hilly areas

Images