About: http://webisa.webdatacommons.org/225474201

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The process leaves a thick sludge, mostly the calcium carbonate and other minerals removed from the water.
http://www.w3.org/ns/prov#wasQuotedFrom	marginalrevolution.com