About: http://webisa.webdatacommons.org/433671245

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	Gravity separation (such as in a settling tank) causes solids such as sludge and dirt to settle at the bottom of the tank.
http://www.w3.org/ns/prov#wasQuotedFrom	pacificmarine.net