{"Page URL":"https://www.appropedia.org/Slow_sand_filtration","Page description":"Explore slow sand filtration on Appropedia—a low-tech method for producing clean, safe drinking water sustainably.","Page image":"File:Slow sand filter.jpg","Page language":"en","Page license":"CC-BY-SA-3.0","Page title":"Slow sand filtration","Page views":"1209","Page year":"Thursday, 01-Jan-09 00:00:00 UTC","Modification date":"Thursday, 27-Nov-25 23:50:11 UTC"}