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dc.contributor.author
Kumar, Pratik
dc.contributor.author
Hegde, Krishnamoorthy
dc.contributor.author
Brar, Satinder Kaur
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dc.contributor.author
Cledón, Maximiliano
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dc.contributor.author
Kermanshahi pour, Azadeh
dc.contributor.author
Roy Lachapelle, Audrey
dc.contributor.author
Galvez Cloutier, Rosa
dc.date.available
2022-07-16T02:47:05Z
dc.date.issued
2019-03
dc.identifier.citation
Kumar, Pratik; Hegde, Krishnamoorthy; Brar, Satinder Kaur; Cledón, Maximiliano; Kermanshahi pour, Azadeh; et al.; Novel fluidized-bed biofilm reactor for concomitant removal of microcystin-LR and organics; Elsevier Science SA; Chemical Engineering Journal; 359; 3-2019; 99-111
dc.identifier.issn
1385-8947
dc.identifier.uri
http://hdl.handle.net/11336/162270
dc.description.abstract
Fluidized bed biofilm reactor (FBBR) was evaluated for the removal of microcystin-LR (MC-LR) from drinking water-sludge (0.3% w/v). Biofilm formed inside the solid media carriers (biocarriers) were studied for the MC-LR degradation in FBBRs via known MC-LR degraders: Arthrobacter ramosus (reactor A: RA) and Bacillus sp. (reactor B: RB), along with the heterogeneous bacterial community (HBC) present in the sedimentation-unit sludge as a background matrix. Their ability to form biofilm inside the immobilized biocarriers was periodically quantified for over 300 days to determine the duration of mature biofilm growth, sloughing event and then re-maturation. The bioreactor performance was mainly evaluated in terms of MC-LR, nitrate, nitrite, ammonia removal, and soluble-chemical oxygen demand (s-COD) removal. Biological degradation of MC-LR showed significant role over the physical adsorption, as the removal efficiency increased by around 30% and 26% for RA and RB respectively, as compared to the control bioreactor RD (without any bacterial cells) and an increase by over 15% and 11% when compared to reactor RC (contained only HBC). Mass spectra analysis for RA, RB, and RC strengthen the possibility of a toxic-free degradation mechanism. Overall, RA showed the best MC-LR removal efficiency of around 93.7%, which comprised no MC-LR in the supernatant phase and around 3 µg/L in the sludge-mixture phase. Toxicity assessment of biodegraded sample (using bioindicator) further revealed the toxic-free nature by RA with >80% removal for ammonia, nitrate, and nitrite. Scale-up of laboratory scale FBBR (2 L) is also proposed to handle 200 m3 of feed water per day based on a similar volumetric mass transfer coefficient (kLa) to study the feasible process economics.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science SA
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BIOFILM
dc.subject
CYANOTOXIN
dc.subject
DRINKING WATER
dc.subject
FLUIDIZED-BED REACTOR
dc.subject
MICROCYSTIN
dc.subject
SCALE-UP
dc.subject.classification
Biotecnología Medioambiental
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dc.subject.classification
Biotecnología del Medio Ambiente
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Novel fluidized-bed biofilm reactor for concomitant removal of microcystin-LR and organics
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-04-26T17:25:05Z
dc.journal.volume
359
dc.journal.pagination
99-111
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Kumar, Pratik. Centre Eau Terre Environnement; Canadá
dc.description.fil
Fil: Hegde, Krishnamoorthy. Centre Eau Terre Environnement; Canadá
dc.description.fil
Fil: Brar, Satinder Kaur. Centre Eau Terre Environnement; Canadá
dc.description.fil
Fil: Cledón, Maximiliano. Universidad Nacional del Comahue. Centro de Investigación Aplicada y Transferencia Tecnológica en Recursos Marinos "Almirante Storni". - Provincia de Río Negro. Ministerio de Agricultura, Ganadería y Pesca. Centro de Investigación Aplicada y Transferencia Tecnológica en Recursos Marinos "Almirante Storni". Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Centro Nacional Patagónico. Centro de Investigación Aplicada y Transferencia Tecnológica en Recursos Marinos "Almirante Storni"; Argentina
dc.description.fil
Fil: Kermanshahi pour, Azadeh. Dalhousie University Halifax; Canadá
dc.description.fil
Fil: Roy Lachapelle, Audrey. University of Montreal; Canadá. Environment Canada; Canadá
dc.description.fil
Fil: Galvez Cloutier, Rosa. Laval University; Canadá
dc.journal.title
Chemical Engineering Journal
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cej.2018.11.119
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1385894718323532
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