About: http://webisa.webdatacommons.org/276269769

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	Thus, when a fuel, free of sulfur and nitrogen, such as natural gas, is being supplied to the burner, 4, scrub water will only be needed to remove nitrogen oxides formed from the combustion air.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com