About: http://webisa.webdatacommons.org/414510495

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	Steel pickling produces acidic waste liquor that has a high metal content and contains other compounds, including nitrogen compounds such as nitrite.
http://www.w3.org/ns/prov#wasQuotedFrom	ingentaconnect.com