All Rights Reserve; BeiJing Huaguang solar filter plant factory
Address: Beijing Changping District Small Town-East Village on the 12th Zip  Code: 102209
Telephone: 010-82911848  Fax:010-82951634

Rainwater harvesting

It is not fresh to collect and use rainwater. As early as in the period of the Qin and Han Dynasties, our country had the record about building ponds to collect rainwater for domestic living, and the construction of water cellars in the northwest region has already had a history of several hundred years. There are also records about rainwater collection and utilization at abroad. Nowadays, the rainwater collection and utilization in truly modern sense, especially that in urban areas, had developed within about 20 years from 1980s~1990s. Along with the further accelerated urbanization, the conflict of lack of water in urban areas is also further deepened, and environmental and ecological problems have also been expanded synchronously. To solve such a series of conflicts in terms of lack of water, environment and ecology, etc., people have paid attention to the rainwater collection and utilization. This subject could just solve such series of problems in lack of water, environment and ecology. Overseas countries have started research on this subject relatively early, and among domestic cities, Beijing has started rainwater collection and utilization relatively early, while Shanghai has not paid sufficient attention to rainwater collection and utilization, since that Shanghai is not lack of water even though the water quality is not so good. However, what solved by rainwater collection and utilization is not only the problem of water, it could also relieve such problems in Shanghai area as increasingly huge pressure of tap water supply and water accumulation on road surface, etc. And also, it could relieve the water and soil losses, and river water pollution, etc. at some certain degree.