Outdoor courtyard rainwater resource recycling integrated system and rainwater purification method

Abstract

An outdoor courtyard rainwater resource recycling integrated system and a rainwater purification method are disclosed. Rainwater on a roof is collected through a roof rainwater pipe, initial rainwateris shunted through a flow abandoning device and then enters a rainwater tank, and roof rainwater collection is achieved; ground rainwater is collected to a rainwater wetland through a permeable concrete pavement, a permeable driving surface, a rainwater wetland and greenbelt, and ground rainwater collection is achieved. After rainwater is collected, the rainwater is subjected to sewage interception, filtration and permeation through a groove type volcanic detention pond of the rainwater wetland, and enters a sedimentation pond through a perforated collection pipe to be settled, so that further purification treatment is realized; after being treated by the sedimentation pond, the rainwater enters a PP water storage module tank through the flow guide pipe to be stored and lifted through a clear water pump and a sewage pump, clear water and sewage are separated, the sewage is discharged through the sewage pump, the clear water passes through a water supply pipe to a purification all-in-one machine for further purification, addition of rainwater purifying agents for purification is not needed, and rainwater recycling, water saving, energy saving and environmental protection are achieved.

Description

technical field [0001] The invention relates to the field of water cycle treatment, in particular to an integrated system for recycling rainwater resources in an outdoor courtyard and a rainwater purification method. Background technique [0002] my country's urban water resources are extremely scarce, and the city's annual water shortage is about 6 billion m 3 , The annual economic loss due to water shortage is about 200 billion yuan. The serious water shortage problem directly affects the process of my country's urban modernization, the growth of GDP and the improvement of residents' living standards. [0003] Improving the recycling of natural rainwater is an important way to improve the lack of urban water resources. After the rainwater falls to the ground, about 10% of it constitutes surface runoff, about 40% is consumed in road surface evaporation and filling, and about 50% is stored in the groundwater table and above through infiltration. In the aerated zone of the s...

AI Technical Summary

Problems solved by technology

At present, the existing rainwater collection systems are often large in scale and occupy a large area, which is not suitable for the use and promotion of courtyards. For offices and families with courtyards, on the one hand, the relatively large roof area makes rainwater collection possible, but The problems of filtration devices, rainwater purification, and rainwater storage have not yet been well resolved; on the other hand, the lawn trees in the courtyard have irrigation needs, and indoor domestic water also has needs. Without the addition of purifiers, the rainwater purification effect is poor, and adding them will directly affect The use of rainwater, how to reasonably allocate and meet the above needs is also a problem that needs to be solved

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