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dc.contributor.authorWang, Qilin
dc.contributor.authorHao, Xiaodi
dc.contributor.authorYuan, Zhiguo
dc.date.accessioned2017-06-13T02:25:59Z
dc.date.available2017-06-13T02:25:59Z
dc.date.issued2016
dc.identifier.issn0045-6535
dc.identifier.doi10.1016/j.chemosphere.2015.10.069
dc.identifier.urihttp://hdl.handle.net/10072/339734
dc.description.abstractFree nitrous acid (FNA i.e. HNO2) was revealed to be effective in enhancing biodegradability of secondary sludge. Also, nitrite-oxidizing bacteria were found to be more susceptible to FNA than ammonium-oxidizing bacteria. Based on these findings, a novel FNA-based sludge treatment technology is proposed to enhance energy recovery from wastewater/sludge. Energy analysis indicated that the FNA-based technology would make wastewater treatment become an energy generating process (yielding energy at 4 kWh/PE/y; kWh/PE/y: kilowatt hours per population equivalent per year), rather than being a large energy consumer that it is today (consuming energy at 24 kWh/PE/y). Importantly, FNA required for the sludge treatment could be produced as a by-product of wastewater treatment. This proposed FNA-based technology is economically and environmentally attractive, and can be easily implemented in any wastewater treatment plants. It only involves the installation of a simple sludge mixing tank. This article presents the concept of the FNA-based technology.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherElsevier
dc.relation.ispartofpagefrom1869
dc.relation.ispartofpageto1873
dc.relation.ispartofjournalChemosphere
dc.relation.ispartofvolume144
dc.subject.fieldofresearchEnvironmental Biotechnology not elsewhere classified
dc.subject.fieldofresearchcode100299
dc.titleTowards energy positive wastewater treatment by sludge treatment using free nitrous acid
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorWang, Qilin


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