About: http://webisa.webdatacommons.org/321258048

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	If further purification is necessary or desired, the spray contacting procedure of steps a) and b) may be repeated, or other contacting techniques or schemes, such as use of a sparged tower or towers, may be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com