In this file photo, a technician is seen at the wastewater treatment plant in Saint-Jean-de-Cornies, southern France. Photo: Sylvain Thomas/AFP
Would you take a swig of water from your faucet if it originally came from the sewer?
Treating wastewater to put it back into public use can help against water crises around the world, according to the United Nations, though the practice has to overcome the "yuck" factor among the public.
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