Good development for addressing the problem of drinking water in arsenic affected areas. I have seen similar hand pump attach units installed in fluoride affected areas. These are based on resin based component adsorbing fluoride. After a gap of few days there is need to regenerate the resin bed as adsorption capacity reduces due to increase of concentrate load. Following are the reasons which led to failure of project:1. Lack of trained manpower for regeneration of resin bed.2. Non availability of good quality Alum in villages required for generation3. The treatment process was slower than the discharge received from hand pump, this resulted the overall flow of treated water. People use to spend more time at hand pump4. No knowledge provided to users about replacement of resin bed. It has a certain life, after 3 - 4 years of operation there was need to replace it. 5. Risk of re-contamination was not addressed, the concentrate emitted from regeneration process discharged nearby to hand pumps. Hope this innovation addresses all these points.
Published by Subhash Jain, Independent Development Consultant
Good development for addressing the problem of drinking water in arsenic affected areas.
I have seen similar hand pump attach units installed in fluoride affected areas. These are based on resin based component adsorbing fluoride. After a gap of few days there is need to regenerate the resin bed as adsorption capacity reduces due to increase of concentrate load. Following are the reasons which led to failure of project:1. Lack of trained manpower for regeneration of resin bed.2. Non availability of good quality Alum in villages required for generation3. The treatment process was slower than the discharge received from hand pump, this resulted the overall flow of treated water. People use to spend more time at hand pump4. No knowledge provided to users about replacement of resin bed. It has a certain life, after 3 - 4 years of operation there was need to replace it. 5. Risk of re-contamination was not addressed, the concentrate emitted from regeneration process discharged nearby to hand pumps.
Hope this innovation addresses all these points.
I have seen similar hand pump attach units installed in fluoride affected areas. These are based on resin based component adsorbing fluoride. After a gap of few days there is need to regenerate the resin bed as adsorption capacity reduces due to increase of concentrate load. Following are the reasons which led to failure of project:1. Lack of trained manpower for regeneration of resin bed.2. Non availability of good quality Alum in villages required for generation3. The treatment process was slower than the discharge received from hand pump, this resulted the overall flow of treated water. People use to spend more time at hand pump4. No knowledge provided to users about replacement of resin bed. It has a certain life, after 3 - 4 years of operation there was need to replace it. 5. Risk of re-contamination was not addressed, the concentrate emitted from regeneration process discharged nearby to hand pumps.
Hope this innovation addresses all these points.