SPEAKER PROFILE: With 34 years of experience in the water, waste-water and sanitation sector, S Viswanath is an expert in the design of rainwater harvesting, aquifer recharge and wastewater recycling systems. Viswanath is the Director at Biome Environmental Solutions, a Bangalore based ecological architecture firm, a member of the sustainable sanitation alliance, international water association and various policy committees including rainwater harvesting policy and law Bengaluru, the waste-water policy Karnataka and the water policy for Karnataka, drafted by the Karnataka Knowledge Commission. He teaches at the Azim Premji University on Water and writes a column Water wise in The Hindu newspaper