Potential for potable water savings by using rainwater: An analysis over 62 cities in southern Brazil
- 作者：Enedir Ghisi ; Andreza Montibeller and Richard W. Schmidt
- 关键词：Water availability ; Potable water savings ; Rainwater usage in southern Brazil
- 刊名：Building and Environment
- 出版年：2006
- 期刊代码：21_03601323
- 类别：et
- 出版时间：2006
- 卷：41
- 期：2
- 页码：204-210
- 文件大小：320 K
摘要
Water availability has been a matter of concern all over the world. This paper describes the water availability scenario in the state of Santa Catarina, southern Brazil, and evaluates the potential for potable water savings estimated for the residential sector of 62 cities in the state. Water availability in Santa Catarina amounts to about 
per capita per year, but it is predicted to be lower than 3440619022b30cc70ee9eacda4">
per capita per year from 2100 onwards. As for the potential for potable water savings by using rainwater, it is shown that it ranges from 34%to 92%depending on the potable water demand verified in the 62 cities, with an average potential for potable water savings of 69%. Results demonstrate that if there were a government programme to promote potable water savings by rainwater usage, there would be significant potable water savings and a consequent preservation of water resources in the state of Santa Catarina.