Rainwater collecting and recycling system for urban green land and plaza

Abstract

The invention discloses a rainwater collecting and recycling system for an urban green land and a plaza; the rainwater collecting and recycling system comprises the green land, roads around the green land and the plaza; the green land is of a sunken structure which is lower than the roads and the plaza; the plaza is of a dome structure which is slightly lower at four sides; and the roads are of arched structures which are higher at the middle and slightly lower at two sides; rainwater on the roads and the plaza enters a water collecting well which is connected with a covered filtering channel; the water drain end of the covered filtering channel is connected with an underground impounding reservoir; a concrete cover plate layer is arranged at the upper part of the impounding reservoir; the green land is arranged at the upper part of the concrete cover plate layer; a water pump is arranged in the underground impounding reservoir; and the water outlet of the water pump is connected with a green land irrigation spray head. The rainwater collecting and recycling system for the urban green land and the plaza relieves the pressures on sewage disposal, municipal water supplying and shortage of urban water sources, realizes rainwater recovery and gives full play to the ideas of energy conservation, emission reduction and sustainable development.

Description

technical field [0001] The invention relates to a rainwater recycling system, in particular to a rainwater collection and reuse system for urban green squares. Background technique [0002] With the development of urbanization, the problem of lack of urban water resources is becoming more and more serious. However, in daily life, the amount of rainwater accumulated in urban squares and surrounding roads cannot be underestimated. If this part of rainwater can be collected and reused, resources can be saved to a certain extent. [0003] The representative researches on rainwater utilization in foreign countries include Germany, Japan, the United States and other countries. Germany is one of the countries with the most advanced rainwater collection, treatment and utilization technologies in the world. In order to ensure the implementation of rainwater utilization, a complete and practical theoretical and technical system has basically been formed, and relevant laws and regulat...

AI Technical Summary

Problems solved by technology

However, when analyzed from the perspective of urban green space, there is no systematic theoretical guidance, and more of it stays at the level of urban green space. Most green space irrigation fails to utilize rainwater resources.

The traditional concave road surface is easy to cause a large amount of water accumulation. After the rainwater on the road dries up, particulate pollutants such as dust and sand (from atmospheric deposition and carried by people and vehicles) will still remain on the road surface. It will be dusty and cause secondary pollution

Images