About: http://webisa.webdatacommons.org/259519018

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	Microorganisms in wastewater consume some dissolved materials, but others, such as heavy metals, are difficult to remove by conventional treatment.
http://www.w3.org/ns/prov#wasQuotedFrom	all-about-wastewater-treatment.com