지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
오류제보하기
Objectives : Rainwater harvesting (RWH) is one of the most promising alternative water sources, since rainwater can easily be collected and used without significant treatment for non-potable purposes. However, the economical viability of these systems is not always assured. The objective of this study is to assess the potential water saving and financial performance of an RWH systems for a typical multifunctional building (with a rooftop area of 2,725 ㎡) in Guangzhou, China.
Methods : The water saving and economic feasibility of the RWH system were examined using a yield after supply model for fourteen rainwater tank schemes (from 1 ㎥ to 30 ㎥).
Results and Discussion : According to the simulation results, an annual potable water saving of 3,923.56 ㎥ can be achieved and a corresponding annual revenue of 11,496.04 CNY can be obtained from the RWH system. The economic viability expressed by benefit cost ratio is 1.50 and by payback periods are within 6.26 year, respectively. Sensitivity analysis indicates that the water price is the most important factor affecting the economic viability of an RWH systems. The widespread implementation of rainwater harvesting systems in the public buildings will not only lead to economic savings, but also go further to relive pressure on urban drainage systems and natural water body. Therefore, the actual benefits achieved by a RWH system will be greater than we predicted in current study.
Conclusions : These results demonstrating that the application of RWH system is a very promising adaptation strategy for coping with the water crisis and climate change in urban areas of southern China.
Methods : The water saving and economic feasibility of the RWH system were examined using a yield after supply model for fourteen rainwater tank schemes (from 1 ㎥ to 30 ㎥).
Results and Discussion : According to the simulation results, an annual potable water saving of 3,923.56 ㎥ can be achieved and a corresponding annual revenue of 11,496.04 CNY can be obtained from the RWH system. The economic viability expressed by benefit cost ratio is 1.50 and by payback periods are within 6.26 year, respectively. Sensitivity analysis indicates that the water price is the most important factor affecting the economic viability of an RWH systems. The widespread implementation of rainwater harvesting systems in the public buildings will not only lead to economic savings, but also go further to relive pressure on urban drainage systems and natural water body. Therefore, the actual benefits achieved by a RWH system will be greater than we predicted in current study.
Conclusions : These results demonstrating that the application of RWH system is a very promising adaptation strategy for coping with the water crisis and climate change in urban areas of southern China.
목차
1. Introduction
2. Methodology
3. Results and analysis
4. Discussion
5. Conclusions
References
참고문헌 (26)
참고문헌 신청
W. Zhang, C. Wang, Y. Li, P. Wang, Q. Wang, D. Wang, Seeking sustainability: multiobjective evolutionary optimization for urban wastewater reuse in China, Environ. Sci. Technol., 48(2), 1094-1102(2014).
X. Lin, L. He, R. Zhang, X. Guo, H. Li, Rainwater in Guangzhou, China: oxidizing properties and physicochemical characteristics, Atmos. Pollut. Res., 10(1), 303-312(2019).
Y. Zhang, A. Grant, A. Sharma, D. Chen, L. Chen, Alternative water resources for rural residential development in Western Australia, Water Resour. Manag., 24, 25(2010).
A. Rahman, J. Keane, M. A. Imteaz, Rainwater harvesting in greater Sydney: water savings, reliability and economic benefits, Resour. Conserv. Recycl., 61, 16-21(2012).
H. Yang, K. C. Abbaspour, Analysis of wastewater reuse potential in Beijing, Desalination, 212(1-3), 238-250(2007).
X. Lin, L. He, R. Zhang, X. Guo, H. Li, Rainwater in Guangzhou, China: oxidizing properties and physicochemical characteristics, Atmos. Pollut. Res., 10(1), 303-312(2019).
Y. Zhang, A. Grant, A. Sharma, D. Chen, L. Chen, Alternative water resources for rural residential development in Western Australia, Water Resour. Manag., 24, 25(2010).
A. Rahman, J. Keane, M. A. Imteaz, Rainwater harvesting in greater Sydney: water savings, reliability and economic benefits, Resour. Conserv. Recycl., 61, 16-21(2012).
H. Yang, K. C. Abbaspour, Analysis of wastewater reuse potential in Beijing, Desalination, 212(1-3), 238-250(2007).
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