Good day, thank you Prem. Technologies and markets for energy, fertilisers, sand...etc... from wastewater exist so poor populations should be able to benefit the return of their own waste.  Those technologies should increase the return on investment for the wastewater transformation but I am interested to understand your views/experiences about the reasons why there is not more sanitation put in place and disadvantaged population not enabled to benefit the return of their own resources?

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Good day, thank you Prem. Technologies and markets for energy, fertilisers, sand...etc... from wastewater exist so poor populations should be able to benefit the return of their own waste.  Those technologies should increase the return on investment for the wastewater transformation but I am interested to understand your views/experiences about the reasons why there is not more sanitation put in place and disadvantaged population not enabled to benefit the return of their own resources?