Household separate rainwater collecting and processing device and method for drought regions

Abstract

Provided is a household separate rainwater collecting and processing device for drought regions. The device comprises a roof rainwater gully, a water drainage pipe, a roof initial rainwater collection case, a ground rainwater collection port, a ground rainwater collection pipe, a ground initial rainwater collection tank, a clean rainwater collection tank, a coagulative precipitation tank and a filter tank, wherein the roof rainwater gully is arranged at the eave of the roof; the roof initial rainwater collection case, the coagulative precipitation tank and the filter tank are all arranged on the ground; the ground initial rainwater collection tank and the clean rainwater collection tank are arranged underground; and the upper end of the ground initial rainwater collection tank and the upper end of the clean rainwater collection tank upwards protrude out of the ground. The invention further discloses a rainwater collecting and processing method with the household separate rainwater collecting and processing device adopted. The household separate rainwater collecting and processing device and method achieve separation of initial rainwater which is polluted severely in the initial period from clean rainwater in the middle and later periods, the initial rainwater with high pollutant content is sealed in the initial rainwater tank for environment-friendly irrigation, road sprinkling and other purposes; and after the clean rainwater in the middle and later periods is further intensified, the clean rainwater is made into drinking water.

Description

technical field [0001] The invention belongs to the technical field of rainwater utilization, and in particular relates to a family-type rainwater collection and treatment device and method used in arid areas. Background technique [0002] Drinking water is the source of life and the foundation of survival. In many remote water-scarce regions around the world, rainwater is the main source of drinking water for local residents. Taking my country as an example, in some remote areas such as the northwest of our country, affected by the level of social and economic development and the lack of water resources, rainwater has become the source of drinking water for local residents, and projects such as rainwater cellars and storage ponds are used to collect rainwater The main facilities, such as the "121 Rainwater Harvesting Project" in Gansu, the "Kiln Agriculture" in the southern mountainous area of ​​Ningxia, and the "112 Rainwater Harvesting and Water-Saving Irrigation Project"...

AI Technical Summary

Problems solved by technology

[0003] However, existing studies have shown that for a rainfall, the first few millimeters of rainwater runoff are most polluted, and almost all the pollutants carried in the runoff are concentrated, which may contain organic matter, nitrogen and phosphorus, pathogens, heavy metals, and oils , suspended solids and other pollutants

Before the rainwater enters the rainwater cellar, it only undergoes simple sedimentation treatment, which can only remove suspended solids such as sediment, but the removal effect of dissolved pollutants in it is poor, resulting in poor quality of collected rainwater, which will harm the drinkers. harm to the health of

At the same time, the existing norms and actual projects often only focus on the collection of rainwater, but ignore the treatment of rainwater. Even if the method of collecting rainwater by quality is adopted, the clean rainwater still inevitably contains pollutants. Only by effectively removing them pollutants in order to obtain qualified drinking water and ensure the safety of water users

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