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Feasibility Study of Rainwater Harvesting from Large Rooftops (Case Study: Ahvaz City, Iran)

Document Type : Research Paper

Authors

1 Msc Student, Department of Water Structures, Faculty of Water and Environmental Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran.

2 Assistant Professor, Department of Hydrology and Water Resources, Faculty of Water and Environmental Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran.

10.22077/jwhr.2024.7602.1136

Abstract

Humanity is currently facing one of its greatest challenges a shortage of renewable and accessible water resources. One of the best and most cost-effective solutions for sustainable water resource utilization is rainwater harvesting system (RWS). Rooftops of buildings can act as water micro-catchment surfaces and store rainwater before it turns into runoff losses. In order to  investigate the potential of rainwater conservation and recycling, in this study, the feasibility of utilizing rainwater harvesting from rooftops of public and large buildings of  Ahvaz city was evaluated. To achieve the goal, we utilized annual precipitation data, the Statistical Yearbook of the Ahvaz Metropolitan Area, and satellite imagery from Google Earth. Large buildings were categorized into 6 groups, and the total rooftop area suitable for implementing a rainwater harvesting system was estimated. It was calculated that approximately 222,708 m3 of rainwater could be harvested annually from the rooftops of these buildings. The volume of harvestable water was distributed among different building categories, with industrial sites having the largest share, followed by governmental offices and educational centers. The results form the Sotnikova equations showed that by help of RWS could meet 11.42% of Ahvaz's industrial water demand, leading to a reduction in dependency on external water sources and economic savings. Recycled rainwater could supply up to 34.56% of the water demand for urban parks in Ahvaz.

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References
Abbas, S., Mahmood, M. J., & Yaseen, M. (2021). Assessing the potential for rooftop rainwater harvesting and its physio and socioeconomic impacts, Rawal watershed, Islamabad, Pakistan. Environment, Development and Sustainability, 23(12), 17942-17963. https://doi.org/10.1007/s10668-021-01422-z
Adugna, D., Jensen, M. B., Lemma, B., & Gebrie, G. S. (2018). Assessing the potential for rooftop rainwater harvesting from large public institutions. International journal of environmental research and public health, 15(2), 336.
Campisano, A., Butler, D., Ward, S., Burns, M. J., Friedler, E., DeBusk, K., Fisher-Jeffes, L. N., Ghisi, E., Rahman, A., & Furumai, H. (2017). Urban rainwater harvesting systems: Research, implementation and future perspectives. Water research, 115, 195-209.
Domènech, L., & Saurí, D. (2011). A comparative appraisal of the use of rainwater harvesting in single and multi-family buildings of the Metropolitan Area of Barcelona (Spain): social experience, drinking water savings and economic costs. Journal of Cleaner Production, 19(6), 598-608. https://doi.org/10.1016/j.jclepro.2010.11.010
Ebrahimi, P., & Mohseni Saravi, M. (2021). Economic study of the rainwater collection system in drought conditions. Water Harvesting Research, 4(2), 227-237. 10.22077/jwhr.2022.5246.1058
García-Montoya, M., Bocanegra-Martínez, A., Nápoles-Rivera, F., Serna-González, M., Ponce-Ortega, J. M., & El-Halwagi, M. M. (2015). Simultaneous design of water reusing and rainwater harvesting systems in a residential complex. Computers & Chemical Engineering, 76, 104-116.
Ghahremani, R., & Omidvar, E. (2020). Review of rainwater harvesting methods with emphasis on advantages and disadvantages 9th National Conference on Rainwater Catchment Systems, Tabriz [In Persian].
Gleick, P. H. (1996). Basic water requirements for human activities: Meeting basic needs. Water international, 21(2), 83-92.
Jacque, H., Knox, J. W., Gush, M., & Holman, I. P. (2023). Modelling the potential of rainwater harvesting to improve the sustainability of landscape and public garden irrigation. Journal of Environmental Management, 348, 119167. https://doi.org/https://doi.org/10.1016/j.jenvman.2023.119167
Jahangiri, s., & asareh, a. (2019). Determination of runoff coefficient and threshold of flow start from the surface of backroof under Ahwaz climatic conditions The 2nd National Conference on Natural Resources Management, Focusing on Water, Flood and the Environment, Gonbad-e Qabus, Iran [In Persian].
Kakoulas, D. A., Golfinopoulos, S. K., Koumparou, D., & Alexakis, D. E. (2022). The Effectiveness of Rainwater Harvesting Infrastructure in a Mediterranean Island. Water, 14(5), 716. https://www.mdpi.com/2073-4441/14/5/716
Kim, K., & Yoo, C. (2009). Hydrological Modeling and Evaluation of Rainwater Harvesting Facilities: Case Study on Several Rainwater Harvesting Facilities in Korea. Journal of Hydrologic Engineering - J HYDROL ENG, 14. https://doi.org/10.1061/(ASCE)HE.1943-5584.0000030
Maddah, M., & Ahmadi, F. (2020). Sustainable Water Resource Management through Rainwater Harvesting from Rooftop Catchments 9th National Conference on Rainwater Catchment Systems, Tabriz, Iran [In Persian].
Neshastegar, s., & Taghavijeloudar, M. (2021). Feasibility study of rainwater utilization as a renewable water source using Google Earth aerial maps and meteorological data (Case study: Tehran city) 6th. National Congress on civil engineering, architecture and urban development, Tehran, Iran [In Persian].
Porhemmat, J., Jafari Bibalan, B., & Qazi Mir Saeed, A. (2019). Feasibility study of rainwater harvesting for different demands in urban areas (Case Study: Ministry of Energy main building and Tavanir Area) 8th National Conference on Rainwater Catchment Systems, Mashhad, Iran [In Persian].
Seydi, A. N., & Gondomkar, A. (2021). Investigation of climate change in Ahvaz in relation to Regional development and urban planning. Quarterly Journal of Human Geography, 13(2), 159-169. magiran.com/paper/2248206 [In Persian].
Sheikh, V. (2021). Assessing the Status and Importance of Rainwater Harvesting from Public Perceptions (Case Study: Six Regional Capital Cities of Iran). Water Harvesting Research, 4(1), 40-53. 10.22077/jwhr.2020.3457.1036
Sotnikova, K., NV, K., & AP, T. (2012). Expert decision-making system for reconstruction of buildings taking into account the principles of" Green building. Engineering systems and constructions(1), 98-105.
Statistical Yearbook of Ahvaz Metropolitan Area. (2022).
Water Harvesting Research
Volume 7, Issue 1
March 2024
Pages 51-60
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