About: http://webisa.webdatacommons.org/382637126

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	In a system such as this, the majority of the activated sludge is directed back into the aeration tank, and this sludge is commonly called the return or seed sludge.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com