untreated domestic sewage
There are six polluted rivulets spaced an average of 150 meters of each other, three of which have a wider catchment area, though I believe that is only domestic waste. I would like to get some idea if it’s possible to treat the water locally, and if it’s possible to do it in an environmental […]
Douro’s Valley
[ image : Arquitectura Popular em Portugal] [ image : Arquitectura Popular em Portugal] [ image : Rui Monteiro April 1988 ]
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