Catch basin with incipient rain separation and purification function

Abstract

The invention provides a catch basin with an incipient rain separation and purification function. The catch basin is characterized by comprising an inner well, an outer well, a well lid, a screen, a settling tank, a water return ring and biological stuffing; the inner well and the outer well adopt an inner pipeline structure and an outer pipeline structure which are different in height; the screen is connected to the top end of the wall of the inner well and the inner wall of the outer well; a cavity is formed among the inner well, the outer well and the screen; when incipient rain falls into the outer well, floatage and silt are blocked by the screen and the settling tank; rain overflows from the settling tank, passes the water return ring, uniformly passes through the biological stuffing, and is purified by microbes in the biological stuffing; purified rain water enters a coarse sand layer outside the catch basin through porous channels, and is then injected into groundwater; later rainfall falls into the inner well directly, and enters a rain water collection system through a water draining and collecting pipeline for discharging or recycling. The catch basin is simple in structure and maintenance management, small in occupied area, and obvious in economic benefit.

Description

technical field [0001] The invention relates to the technical field of rainwater collection and utilization, in particular to a rainwater well with the function of separating and purifying initial rainfall. Background technique [0002] Rainwater recycling is an effective way to solve the shortage of water resources, and it is also an important part of the construction of sponge cities. The collection and utilization of rainwater can not only reduce the environmental pollution of initial rainwater, but also effectively prevent urban waterlogging. The most critical issue in rainwater harvesting and utilization is to separate the heavily polluted early rainfall from the late rainfall. At present, the common practice is to discard the initial rainwater, collect the later rainfall with better water quality, and reuse it after simple treatment. This approach is not a good solution to the environmental pollution of the initial rainfall. For this reason, the research work on a r...

AI Technical Summary

Problems solved by technology

This approach is not a good solution to the environmental pollution caused by the initial rainfall

For this reason, the research work on a rainwater well with the function of separating and purifying the initial rainfall was carried out. , filtration, and biodegradation for purification, which makes the initial rainfall cause environmental pollution and other problems

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