About: http://webisa.webdatacommons.org/81331921

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	Impurities, such as hydrogen sulfide and water, are removed and the resulting biogas is then commonly used in boilers or combined heat and power systems.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com