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Activity of nitrifying bacteria in aerobic granular sludge treating food industry wastewater

2019-07-21Conference object Open access
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dc.contributor.authorPaulo, Ana M. S.
dc.contributor.authorAmorim, Catarina L.
dc.contributor.authorCastro, Paula M. L.
dc.date.accessioned2019-07-09T14:17:22Z
dc.date.available2019-07-09T14:17:22Z
dc.date.issued2019-07-21
dc.description.abstractAerobic Granular Sludge (AGS) is an innovative wastewater biological treatment, which uses less energy and space compared to other technological solutions. AGS presents a diverse microbial community responsible for the simultaneous removal of carbon and nutrients. These communities are protected by extracellular polymeric substances (EPS), which provide a compact structure to the granules. As a result, bacteria present in the aerobic granules are more resistant to variable wastewater composition, as commonly produced in food industry. In this study, carbon and NH4+ removal from a fish canning plant wastewater was evaluated using an AGS-SBR (sequential batch reactor), operated during 90 days. Chemical oxygen demand (COD) at the outlet was below the discharge limit of 125 mg O2 L-1 throughout the operation. Nitrification occurred during the first 23 days of operation. Between days 24 and 60, nitrification was completely inhibited, without ammonium removal from the wastewater. Nitrifying bacteria recovered their activity right after a decrease in the wastewater organic load, showing that the inhibition of the nitrification process was reversible. This study will contribute to our knowledge on the application of the AGS process to food industry wastewater treatment.pt_PT
dc.description.versionN/Apt_PT
dc.identifier.citationPaulo, A.M.S., Amorim, C.L., Castro, P.M.L. (2019) Activity of nitrifying bacteria in aerobic granular sludge treating food industry wastewater. In 10th IWA International Symposium on Waste Management Problems in Agro-Industries, June 19-21, 2019 Rhodes Island, Greecept_PT
dc.identifier.urihttp://hdl.handle.net/10400.14/27878
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationMultiBiorefinery SAICTPAC/0040/2015 (POCI-01-0145-FEDER-016403)pt_PT
dc.relationCentre for Biotechnology and Fine Chemistry
dc.subjectAerobic granulespt_PT
dc.subjectWastewaterpt_PT
dc.subjectNitrificationpt_PT
dc.subjectOrganic Loadpt_PT
dc.subjectFish canningpt_PT
dc.subjectFood Industrypt_PT
dc.titleActivity of nitrifying bacteria in aerobic granular sludge treating food industry wastewaterpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleCentre for Biotechnology and Fine Chemistry
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMulti%2F50016%2F2019/PT
oaire.citation.conferencePlaceJune 19-21, 2019 Rhodes Island, Greecept_PT
oaire.citation.title10th IWA International Symposium on Waste Management Problems in Agro-Industriespt_PT
oaire.fundingStream6817 - DCRRNI ID
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isProjectOfPublication1f76a7db-2520-482f-b56b-7e01ea36dd1f
relation.isProjectOfPublication.latestForDiscovery1f76a7db-2520-482f-b56b-7e01ea36dd1f

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