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World Toilet Day improve sanitation septic tank pit latrines sanitation models sanitation service chain pit desludging sludge transport treatment disposal resource recovery fecal sludge dewatering health and environmental risks productive utilizing waste nutrients organic matters fertilizer pellets
19 November 21
Global
https://www.youtube.com/watch?v=mpWHsttQCoI&list=PLCFD0BB5F1019383E&index=9
This World Toilet Day we celebrate the progress made in improving sanitation, and look at what still must be done