Rainwater collection system

Abstract

The invention provides a rainwater collection system. The rainwater collection system comprises an initial rainwater tank used for storing initial rainwater, a non-initial rainwater tank used for delaying discharging or reusing non-initial rainwater after storing the non-initial rainwater, a rainwater collection pipe used for collecting the initial rainwater and the non-initial rainwater and an intake canal communicated with the rainwater collection pipe and used for making the initial rainwater collected by the rainwater collection pipe flow into the initial rainwater tank and making the non-initial rainwater collected by the rainwater collection pipe flow into the intake canal after the collection of the initial rainwater is completed. According to the rainwater collection system, it canbe avoided that instantaneous rainwater generates impact load on a rainwater net tube or a sewage net tube, quantitative closure and separation can be efficiently conducted on the rainwater, proper recycle can be conducted on the rainwater according to different conditions, and the implement cost is lower.

Description

technical field [0001] The invention relates to rainwater collection and utilization technology, in particular to a rainwater collection system for separately collecting initial rainwater and non-initial rainwater. Background technique [0002] Rainwater runoff pollution caused by rainwater erosion is an important part of non-point source pollution. Especially in the initial stage of a rainfall, the initial runoff, which accounts for 20% of the total runoff, scours and discharges 80% of the runoff sewage. In some plant areas with polluting projects (such as hazardous waste treatment plants, manure treatment plants, livestock and poultry treatment plants, etc.), the initial rainwater runoff contains more complex components (such as organic matter, nitrogen, phosphorus, grease, heavy metals, etc.). Because the rainwater runoff pollution has the characteristics of large concentration changes, poor biodegradability, and complex components, if it is directly discharged into the ...

AI Technical Summary

Problems solved by technology

However, during the whole rainfall process, the abandoned flow pipe has been in the abandoned flow state, which is likely to cause a large impact load on the sewage pipe network. unstable

[0006] To sum up, the various existing initial rainwater abandonment systems have a certain effect of intercepting the initial rainwater runoff to varying degrees, but the above-mentioned systems are likely to cause great damage to the rainwater pipe network or sewage pipe network when dealing with large rainwater flows. At the same time, the rainwater cannot be effectively quantitatively intercepted and separated

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