About: http://webisa.webdatacommons.org/385502423

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	There are also biological filtration methods that use living organisms such as plants and bacteria in order to filter water from toxic ions and other unwanted matter.
http://www.w3.org/ns/prov#wasQuotedFrom	puwater.com