期刊
RESOURCES CONSERVATION AND RECYCLING
卷 167, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.resconrec.2020.105378
关键词
Rainwater; Water savings; Reliability; Rainfall; Australia
资金
- Australian Bureau of Meteorology
This study examined the viability of rainwater harvesting system in Australia in terms of water savings, reliability and financial viability, revealing different results for different water use scenarios and certain cost-effective conditions for implementing the system.
Y In this study, we have examined the viability of rainwater harvesting system in whole Australia in terms of water savings, reliability and financial viability. Three different cases of water use have been considered: (i) toilet flushing and laundry; (ii) irrigation; and (iii) combination of toilet flushing, laundry and irrigation (combined). The analysis is performed using data from 601 Australian rainfall stations. The results show that the reliability of a rainwater harvesting system is considerably high (80-100%) for 'toilet flushing and laundry' use. For 'combined' use, the reliability drops below 50% for most of the continent. We have presented the detail results of spatial distribution of reliability and water savings for a tank size of 7.5 kL. It is found that the benefit cost ratio for rainwater harvesting system over one can be achieved under certain conditions. The findings of this study will be useful in sustainable water resource management in Australia using rainwater harvesting system.
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