PURIFICATION SYSTEM FOR ROOF WATER HARVESTING

Abstract

Due to the filter clogging, majority of the roof water harvesting systems are dysfunctional after a very short span of life of their commissioning. In this context, an alternative filter system with high filtration efficiency and easy to clean provision will be a great boon in solving the roof water harvesting issue. The upward flow mesh filter is the solution; it can be made in different mesh sizes. The existing one is 100 micron mesh filter and its filtration efficiency is found to be 84.6%. For improving the efficiency of the system, 60, 40 and 25 micron mesh filter has been designed and has been compared with the 100 micron mesh filter. It is found that by using 60, 40 and 25 micron mesh filter, efficiency is increased to 86.2%, 87.53% and 88.4%. As part of the study, quality of roof water from different kinds of roofing materials has been conducted and the parameters viz. pH, EC, TDS, suspended matters and microbial content have been evaluated.