<http://webisa.webdatacommons.org/315357942>	<http://www.w3.org/ns/prov#value>	"Methods such as adsorption, precipitation, ion exchange and membrane processes have been employed for F- removal." .
<http://webisa.webdatacommons.org/315357942>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/53167258>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/315357942> .
<http://webisa.webdatacommons.org/315357942>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<uj.ac.za> .