<http://webisa.webdatacommons.org/171479107>	<http://www.w3.org/ns/prov#value>	"Chemicals such as acids, bases, and oxidizing and reducing reagents such as ozone or hydrogen peroxide can be added to the water before it flows into the vibrating iron filter." .
<http://webisa.webdatacommons.org/prov/455762477>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/171479107> .
<http://webisa.webdatacommons.org/171479107>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com.au> .
<http://webisa.webdatacommons.org/171479107>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .