About: http://webisa.webdatacommons.org/108834714

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	due to cations such as calcium and magnesium ions. The nanofiltration operates to remove 50 to 80% of the scale-forming precipitates.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com