Rainwater Harvesting at Vaageswari College of Engineering Karimnagar

According to the United Nations Population Fund’s (UNFPA) State of the World population 2018 report, India’s population grew at 1.2% a year between 2010 and 2019, marginally higher than the global average of 1.1.% a year and also double than China’s population 0.5% a year. These will lead to high rate of consumption of most valuable natural resource “Water” resulting in augmentation of pressures on the permitted fresh and drinking water resources. Ancient method of damming river and transporting water to urban area has its own issues of eternal troubles causing socially and politically. In order to conserve and maintain the daily demand of water requirement, we need to think for alternative cost-effective and relatively simple technological methods of conserving water. Rainwater harvesting is one of the best methods fulfilling these requirements of water. The technical aspects of this paper are rainwater harvesting collected from rooftop which is considered to be catchment areas from institute’s departmental building at Vaageswari College of Engineering (S₄ campus), Thimmapur, Karimnagar, Telangana (India). Data is collected, i.e., catchment areas & hydrological rainfall data. Water harvesting potential for the S₄ campus is calculated, and the tank capacity with suitable design is being considered. Volume of tank has been calculated with most appropriate method of estimation of water. Optimum location of tank on the basis of hydrological analysis and GIS analysis was done in the college campus. Finally, Gutter design, its analysis, first flush, and filtration mechanism are also carried out in detail.