About: http://webisa.webdatacommons.org/352190835

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	However, some disadvantages of these technologies, such as high cost, sensitive operating conditions and production of secondary sludge [3, 4].
http://www.w3.org/ns/prov#wasQuotedFrom	sciepub.com