Rainwater-collection recycling system and construction method thereof

Abstract

The invention discloses a rainwater-collection recycling system and a construction method thereof. The rainwater-collection recycling system comprises a control system, an initial-rainwater flow dividing well, a water storage pool, a first lifting well, a filtering disinfecting chamber, a clean water pool and a second lifting well, wherein the initial-rainwater flow dividing well, the water storage pool, the first lifting well, the filtering disinfecting chamber, the clean water pool and the second lifting well are sequentially communicated. The first lifting well is communicated with the bottom of the water storage pool and arranged in the water storage pool, and the second lifting well is communicated with the bottom of the clean water pool, arranged in the clean water pool and connected with a recycling point pipe; a stopping weir is arranged in the initial-rainwater flow dividing well, a flow discarding groove is formed in the lower portion of the stopping weir, a rainwater feeding pipe is arranged on the side wall of a water distribution area, the height of the rainwater feeding pipe and the height of the pipe bottom of a first water discharging pipe are larger than or equal to the height of the groove top of the flow discarding groove, and the pipe bottom of an overflowing pipe is flush with the groove bottom of the flow discarding groove; a plurality of back washing pipes are laid on the bottom of the water storage pool, the outer surface of the water storage pool and the outer surface of the clean water pool are sequentially covered with an anti-seepage film layer preventing water seepage and a geotechnical cloth layer from inside to outside, construction and maintenance are convenient, and the recycled rainwater quality is high.

Description

technical field [0001] The invention relates to the field of rainwater collection, in particular to a rainwater collection and reuse system applied to large stadium buildings and a construction method thereof. Background technique [0002] The development of green buildings is in line with the strategic national policy of building a resource-saving and environment-friendly society, which is conducive to saving resources and protecting the environment. The application system of rainwater harvesting and recycling has attracted more and more people's attention and attention, especially for large venues and buildings, which cover a large area and have high requirements for the quality of recycled rainwater. Washing toilets, fire pool storage, car washing, etc., this puts forward higher requirements for rainwater recycling application technology. [0003] In the existing rainwater collection application system, the initial separation effect after the initial collection of rainwa...

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Problems solved by technology

[0003] In the existing rainwater collection application system, the initial separation effect after the initial collection of rainwater is not ideal, and the quality requirements of the rainwater entering the storage tank are not up to standard, and most of them currently use a single storage tank. The recovered rainwater is poor in quality and often fails to meet the hygienic require

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