About: http://webisa.webdatacommons.org/41569214

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 addition, flyash, slag, cement waste, and other industrial wastes can provide sufficient alkalinity to remove at least a portion of the protons and/or provide a sufficient pH change for precipitation.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca