About: http://webisa.webdatacommons.org/69949400

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	Likewise, the time required for settling, hence, the amount of time devoted to aeration and recycling of sludge can vary depending on the initial sludge conditions, temperature, sludge age, and other variables.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com