Publication Details

Feasibility Study of Rainwater Harvesting System in Public Building

Water use is directly impacted by the growth of public buildings, including public halls, schools, government buildings, mosques, and hospitals. Every year, this tends to raise water costs and use, hence water efficiency initiatives must be implemented. Water efficiency is the process of using as little potable water as possible to meet desired needs. Therefore, this article aims to identify the feasibility study on the adaptation of rainwater harvesting system in public premises to decrease the amount of water for consumption used by (1) analyse the potential water savings and associated financial benefits of implementing a rainwater harvesting system, and (2) assess the environmental impact of implementing a rainwater harvesting system. Through the qualitative and quantitative case study analysis of one case study, our results show that the rainwater harvesting system is help to reduce the dependency to current potable water supply between 380m3 to 1025m3 per month based on the demand and cost saving between RM 20,000.00 to RM 22,000.00 per year or RM1,600 to RM 1,900 per month. The increase of the rainwater harvesting use, will reduce demand to the volume of water supply. The findings will be useful when implementing RWHS in public buildings.