Rainwater collection and treatment system based on building drainage pipe

Abstract

The invention relates to the technical field of water treatment, and discloses a rainwater collection and treatment system based on a building drainage pipe. The rainwater collection and treatment system comprises the drainage pipe and a water collection hopper arranged at the upper end of the drainage pipe, a water inlet pipe is arranged on the side surface of the upper end of the drainage pipe,a rainwater filtering processor is connected to the outer end of the water inlet pipe, a water outlet pipe is arranged on the rainwater filtering processor, the outer end of the water outlet pipe is connected with a water tank, a split-flow pipe is arranged at the bottom of the rainwater filtering processor and is connected with the drainage pipe through a return pipe, an electrical control valveis arranged at the portion, located between the water inlet pipe and the return pipe, on the drainage pipe, the water tank is internally provided with a liquid level sensor, and when the liquid levelsensor detects that signals exist, the electrical control valve is switched on. The rainwater collection and treatment system has the advantages that after being collected and treated, the rainwater can serve as domestic water, and the fresh water resource is saved.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a rainwater collection and treatment system based on house drainage pipes. Background technique [0002] The shortage of fresh water resources is a serious problem facing the world at present, and fresh water resources are highly valued by various countries. Rainwater is a very good freshwater resource. The natural rainwater has good water quality. During the rainfall process, the rainwater falls on the surface and scours the surface. Therefore, the initial rainwater contains a large amount of pollutants. As the rainfall continues, the rainwater runoff The pollutant content gradually decreased and tended to be stable. At present, drainage pipes are installed on the outer walls of many houses. On rainy days, the rainwater from the roof will enter the drainage pipes, and then be directly discharged into the sewers through the drainage pipes. A large amount of rainwater is ...

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Problems solved by technology

[0003] In order to solve the problem in the prior art that the roof rainwater is directly discharged into the sewer through the drainpipe and cause waste of fresh water resources, the present inven

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