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Evaluation of chlorella sorokiniana biomass recovery by using different chemical-based flocculants

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dc.contributor.author Fonseca, Gustavo Graciano
dc.contributor.author Menegazzo, Mariana Lara
dc.contributor.author Ribeiro, Dagon Manoel
dc.contributor.author de Oliveira, Nathanya Nayla
dc.contributor.author Marques, Otavio Gonçalves Benites
dc.date.accessioned 2022-08-31T01:03:57Z
dc.date.available 2022-08-31T01:03:57Z
dc.date.issued 2022-03
dc.identifier.citation Fonseca , G G , Menegazzo , M L , Ribeiro , D M , de Oliveira , N N & Marques , O G B 2022 , ' Evaluation of chlorella sorokiniana biomass recovery by using different chemical-based flocculants ' , Journal of Applied Biotechnology Reports , vol. 9 , no. 1 , pp. 477-483 . https://doi.org/10.30491/JABR.2021.291113.1405
dc.identifier.issn 2322-1186
dc.identifier.other PURE: 57852513
dc.identifier.other PURE UUID: 683c0641-c3e0-49f4-a7ad-c9d26e54bfef
dc.identifier.other Scopus: 85129514636
dc.identifier.uri https://hdl.handle.net/20.500.11815/3402
dc.description Funding Information: The authors gratefully acknowledge the Brazilian research funding agencies CNPq (National Council for Scientific and Technological Development), FUNDECT (Mato Grosso do Sul State Foundation for the Support and Development of Education, Science and Technology) and CAPES (Federal Agency for the Support and Improvement of Higher Education) for their financial support. Publisher Copyright: © Baqiyatallah University of Medical Sciences. All rights reserved.
dc.description.abstract Introduction: The nature and the concentration of the chemical agents responsible for cell flocculation are the bottlenecks for microalgae recovery. The aim of the present study was to evaluate different chemical-based flocculants for Chlorella sorokiniana flocculation. Materials and Methods: The biomass recovery efficiency was evaluated by comparing self-flocculation and flocculation with the ferric chloride, sodium hydroxide, aluminum sulfate, and zinc sulfate. After identifying the best flocculating agent, its concentration was varied to determine the optimal condition by rapid agitation followed by sedimentation (0.25 to 1 g/L). Results: Zinc sulfate was unsuitable for this strain due to an efficiency lower than 40%. Self-flocculation and sodium hydroxide were fairly efficient (48.65% and 58.06%, respectively). Aluminum sulfate produced moderate results (56.27%), but flocculation took a long time to become efficient. Ferric chloride showed the best potential for flocculation, and in the analysis of different concentrations (0.25 to 1 g/L) showed to be fast and efficient (nearly 80% of biomass recovery in 10 min) at a concentration of 0.75 g/L. Conclusions: All the flocculants tested in this study can be utilized for biomass recovery, except for the zinc sulfate. The procedure was efficient, inexpensive, and contaminant-free for the recovery of C. sorokiniana biomass.
dc.description.abstract Introduction: The nature and the concentration of the chemical agents responsible for cell flocculation are the bottlenecks for microalgae recovery. The aim of the present study was to evaluate different chemical-based flocculants for Chlorella sorokiniana flocculation. Materials and Methods: The biomass recovery efficiency was evaluated by comparing self-flocculation and flocculation with the ferric chloride, sodium hydroxide, aluminum sulfate, and zinc sulfate. After identifying the best flocculating agent, its concentration was varied to determine the optimal condition by rapid agitation followed by sedimentation (0.25 to 1 g/L). Results: Zinc sulfate was unsuitable for this strain due to an efficiency lower than 40%. Self-flocculation and sodium hydroxide were fairly efficient (48.65% and 58.06%, respectively). Aluminum sulfate produced moderate results (56.27%), but flocculation took a long time to become efficient. Ferric chloride showed the best potential for flocculation, and in the analysis of different concentrat ions (0.25 to 1 g/L) showed to be fast and efficient (nearly 80% of biomass recovery in 10 min) at a concentration of 0.75 g/L. Conclusions: All the flocculants tested in this study can be utilized for biomass recovery, except for the zinc sulfate. The procedure was efficient, inexpensive, and contaminant-free for the recovery of C. sorokiniana biomass.
dc.format.extent 7
dc.format.extent 477-483
dc.language.iso en
dc.relation.ispartofseries Journal of Applied Biotechnology Reports; 9(1)
dc.rights info:eu-repo/semantics/openAccess
dc.subject Lífmassi
dc.subject Gerlar
dc.subject Ferric Chloride
dc.subject Flocculation
dc.subject Microalgae
dc.subject Sedimentation
dc.subject Biotechnology
dc.title Evaluation of chlorella sorokiniana biomass recovery by using different chemical-based flocculants
dc.type /dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article
dc.description.version Peer reviewed
dc.identifier.doi https://doi.org/10.30491/JABR.2021.291113.1405
dc.relation.url http://www.scopus.com/inward/record.url?scp=85129514636&partnerID=8YFLogxK
dc.contributor.school School of Business and Science


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