Hi David, Can you describe ...

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Hi David,

Can you describe the WASH project a little bit? Where is it, what is the climate? Why would you want to use polluted river water as a source of water for instance? What is the type of pollution? Is there any possibility to use any other source for potable purposes, e.g. rainwater? Can you introduce UDDTs in order to avoid using water for excreta transport and ultimately most likely further pollute the river? Can you treat the river water to service water quality for laundry and other household purposes (what are other "municipal" water uses?), e.g. in a wetland, which can be implemented at low external cost, most of the investment being work that can be provided locally?

Also think of closing loops, both water and substances from households, especially nitrogen, phosphorus and carbon, even in very decentralised small treatments for households or buildings. Here, too, wetlands can play a role, e.g. wetlands built in small plastic containers of 1 m³ or so to recycle the laundry water. A friend and colleague in India uses the treated water to water his paddy fields on the terrace of his house, which provide 3 harvest and enough rice for a household of three.

Best regards,
Martin