ASSESSING the POTENTIAL of RAINWATER HARVESTING and REUSE for SUSTAINABLE UNIVERSITY CAMPUS

Abstract

Water resource management, one of the paradigms for creating sustainable universities, ensures that universities both manage the quantity of water used and maintain the quality of water. Water resource management models that begin with campus priority create input for cities at a higher scale. Water resource management encompasses a variety of sustainable practices. One of the most applicable is the reuse of rainwater. Based on these findings, the main objective of the study is to re-evaluate the rainwater harvested with proposed solutions on site and contribute to nature and the water cycle. In the study, the “Rational Method” was used as the method for calculating the amount of rainwater. Hardscape (roads, parking lots), landscaped areas (landscaped and wooded areas) and roofing materials within the campus were determined. The efficiency coefficients of the materials were determined. The area occupied by each material was calculated. The total amount of rainwater was calculated by multiplying by the rainfall data. Studies on rainwater harvesting usually only calculate the amount harvested from roof surfaces. This study calculated the amount of rainwater harvested from hardscape, landscape and rooftop areas. In one year, an average of 243,000 liters of water is needed to use the reservoir and 54,530,000 liters of water for plant irrigation. The total water consumption was calculated at 54,773,000 liters. The annual rainwater volume is 494,000,000 liters and the useful volume is 296,400,000 liters. It can be seen that a volume is achieved that is approximately 5 times the amount of water required.