We are working towards making our facilities more and more water –sustainable. This has been achieved with the use of water efficient fixtures, waste water treatment technologies, rain water harvesting and smart metering for monitoring.
Aerators: we have installed Aerators in all our wash basins across the campuses during the last fiscal year 2015-16. Aerators provide a constant flow rate of 0.5 GPM through variable pressure optimizing water use to great extent.
Water less urinals: We have retrofitted existing urinal system with water less urinal system by installing key valves in some of the locations. This system doesn’t require water for flushing. This in turn has reduced water consumption and energy related to pumping of the system.
Smart water metering: We have installed smart water meters in our campuses to ensure continuous monitoring of water consumption data in real time. These smart meters have enabled us to identify wasteage areas so that immediate action can be taken.
Waste water reuse: Entire waste water generated in the campus is treated at our sewage treatment plants. Recycled water is used for landscaping and flushing. We have installed Ultrafiltration and Reverse osmosis in three of our major locations and reusing the treated water for cooling systems, this has reduced our fresh water consumption by 40%. The water quality is monitored on a regular basis ensuring standards and safety of the employees.
Nanofiltration: Conventional water softeners is being replaced by membrane softeners (Nanofiltration) which gives good quality softened water. Nanofiltration removes nearly all viruses, most of the natural organic matter and a range of salts. Nanofiltration removes divalent ions, which make water hard, so it is used to soften hard water.
Rain water Harvesting: Rainwater harvesting and integration into freshwater use is a significant improvement area for water sustainability across our campuses. We plan to integrate rain water use into primary freshwater use cycle across identified large campuses over the next two year period. Presently rain water constitutes 2% of the total fresh water.
Employee Participation: We are encouraging employee to participate and share their view on the sensitive issues like water and waste. We celebrate world water day along with the employees.