1. AQUA-EDF “Sustainable Solution for Fluoride Mitigation” By Abhijeet Gan Director & CEO

2. Time of India – May 2, 2012 – Front page news 2 Fluoride Problem in India

3. Sources of Fluoride in Water & Health Impact Fluorspars, Rock phosphates and Phosphorities Different contact periods between groundwater and fluoride-bearing rocks Groundwater of Indian aquifers varies from < 1 to 25 ppm Another cause is over-exploitation of groundwater resources for agricultural and drinking water purposes The quantum of water drawn from the aquifers exceeds aquifer re-charge that aids the concentration of fluoride in the aquifers

4. Health Impacts (Fluoride in drinking water) Skeletal Fluorosis Dental Fluorosis 4

5. Innovation AQUA-EDF Technology Based on principle of “Electro Coagulation” Electro chemically generated aluminiun removes fluoride by precipitation and adsorption Aluminium generated acts as coagulant by combining with pollutants to form large size flocs The flocs settle down thereby removing fluoride DC Supply Al(OH) 3 F-F- Al Al 3+ H2 H2 OH - + – Al(OH) 3 - xFx

6. Electro-Chemical Technology

7. Breakthrough Solution De-Centralized AQUA EDF Rural Community Water Centre 7

8. AQUA-EDF Plant

9. The Concept: Community Water Centre (AQUA-EDF) Set up of De-Centralized Water Treatment plant at the village having water quality problem (Micro Utility Approach) Plant based on existing contaminated water sourcePlant designed to provide water for drinking & cooking only servingWater provided at 5-10 lpcd (litre per person per day)Civil or Pre fabricated room to house the plantOperation by local community & Maintenance by Rite Water 9

10. Distribution through Stand Post 10

11. Home Delivery through 20L Cans Operator delivers water at doorstep via Rickshaw in 20L Cans 11

12. Chemical Precipitation Activated Alumina R.O.AQUA-EDF Efficiency LowestLowVery High (Almost 100%) Treatment Cost/M 3 10 – 1210 - 14608-10 Treatment Time 2 – 4 Hrs Very Slow flow Continuous30 Min Water Recovery High 50-60%Very High Regeneration/ Maintenance Not RequiredRegeneration + Backwash RequiredNot Required Man Power Requires manpower Skilled Manpower Unskilled Person Sludge MaximumHigh Lowest Disinfection No YesYES AQUA EDF – Advantages over present alternatives

13. High recovery >95% & hence Minimal Sludge The compound formed in sludge is irreversible in nature No Leaching of fluoride back to ground This makes sludge safe and easy to dispose Only solution that ensures complete fluoride removal from ground !!! Reject & Sludge Management

14. Plant based on Solar Energy (Nalanda Bihar – Pilot) 14

15. High Environmental Impact  High Water Recovery with minimum rejection  Chemical Free technologies  Best in class sludge management Practices  Use of Clean Energy (Solar) 15

16. Awards & Recognitions  Selected among top 5 SMEs across India creating Impact in “Masterpreneur” TV Show by CNBC TV-18 – 2014  Winner at Bihar Innovation Forum 2014 and awarded at hands of Hon CM Shri Nitish Kumar & Onno Ruhl Director World Bank  Tata Strategic Management Group (TSMG) has recognized RWS contribution in the space of community drinking water and case study is being published by them in upcoming forum in Oct 2013  Recipient of BITSAA International Global 30 under 30 Achievement award in field of social entrepreneurship – 2012  MP Govt. (PHED) has recognized the success of AQUA-EDF plants by publishing this as state success story for MP in PHED Annual Report  Recognized by Ministry of Rural Water Supply (GoI) for showcasing success story before all states in National Seminar on Water Quality (Rite Water founder was youngest speaker at this forum) – 2011 16 Received LOI from Govt. of UK-DFID & SVCL Samriddhi Fund to scale our operation across 8 low income states of India

17. Press Coverage (Print, TV, Online)

18. Changing Rural India 18