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A Review on the reliability analysis of rainwater harvesting systems from rooftop catchments
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Hadi Memarian *    |
| Associate Professor, Department of Watershed Management, Faculty of Natural Resources and Environment, University of Birjand, Birjand, Iran, Email: hadi_memarian@birjand.ac.ir |
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Abstract: (511 Views) |
| Rainwater harvesting (RWH) systems represent a sustainable approach to managing freshwater resources, especially in regions with limited water supply. The effectiveness of these systems is critically influenced by policy, design, and climatic conditions. Policies and regulations are foundational to the reliability of RWH systems. They establish standards for system components, ensuring safety and preventing failures. Effective policies encourage RWH adoption by providing guidelines for design standards and incentives such as rebates. Regular maintenance and safety checks mandated by regulations contribute to system reliability, with policies also influencing the permissible uses of harvested rainwater, which can range from non-potable to potable applications. Several factors interplay to determine the reliability of RWH systems: Climatic Conditions: Rainfall frequency, intensity, and distribution are essential for water collection. Erratic rainfall makes systems less reliable. System Design: Properly designed systems tailored to local climatic patterns improve reliability. Key design elements include catchment area, storage capacity, and filtration mechanisms. Geographical Considerations: Variability in reliability across different settings necessitates context-specific designs to maximize effectiveness and cost-efficiency. Advancements in technology enhance RWH systems' reliability and efficiency. Innovations contribute to better integration into urban planning, addressing challenges posed by climate change and urbanization. As technology evolves, RWH systems are expected to become integral to sustainable urban design. Reliability analysis incorporates water balance simulations, statistical analysis, and modeling approaches, aiding in the design and evaluation of systems against climatic variability. This comprehensive approach ensures a consistent water supply, particularly in water-scarce regions. Studies indicate favorable benefit-cost ratios for RWH systems when appropriately designed. Cost-benefit analyses in various settings show that these systems can be economically viable and environmentally beneficial, supporting water conservation efforts. In conclusion, the integration of effective policies, innovative designs, and aquifer recharging projects, with reliability analysis methodologies, is crucial for the success of RWH systems. These systems play a significant role in sustainable water management, especially in the face of increasing water scarcity challenges. |
Article number: 7 |
| Keywords: Reliability, sustainability, innovation, climate change, maintenance, filteration |
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Full-Text [PDF 865 kb]
(95 Downloads)
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Type of Study: Research |
Subject:
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