PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The sludge so generated from the purification of water in these units is likely to contain heavy metals such as copper, nickel, zinc and lead, due to the ion exchange process occurring in the ETPs.It is, however, surprising that the board is dependent on technical experts for monitoring the crucial field work, which should be managed from the scientific point of view.
http://www.w3.org/ns/prov#wasQuotedFrom
  • tribuneindia.com