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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/24768
Title: An approach for dairy wastewater remediation using mixture of microalgae and biodiesel production for sustainable transportation
Authors: Chandra R.
Pradhan S.
Patel A.
Ghosh, Uttam Kumar
Published in: Journal of Environmental Management
Abstract: The aim of this work is remediation of dairy wastewater (DWW) for biodiesel feedstock production using poly-microalgae cultures of four microalgae namely Chlorella minutissima (C. minutissima), Scenedesmus abundans (S. abundans), Nostoc muscorum (N. muscorum) and Spirulina sp. The poly-microalgae cultures were prepared as C. minutissima + N. muscorum (CN), C. minutissima + N. muscorum + Spirulina sp. (CNSS) and S. abundans + N. muscorum + Spirulina sp. (SNSS). Poly-microalgae culture CNSS cultivated on 70% DWW achieved 75.16, 61.37, 58.76, 84.48 and 84.58%, removals of biological oxygen demand (BOD), chemical oxygen demand (COD), total nitrogen (TN), total phosphorus (TP), and suspended solids (SS), respectively, at 12:12 h photoperiod that resulted into total biomass and lipid yield of 3.47 ± 0.07 g/L and 496.32± 0.065 mg/L. However, maximum biomass and lipid yields of 5.76 ± 0.06 and 1152.37 ± 0.065 mg/L were achieved by poly-microalgae culture CNSS cultivated on 70% DWW + 10 g/L of glucose at 18:6 h photoperiod. Fatty acid methyl ester (FAME) analysis shown presence of C14:0 (myristic acid) C16:0 (palmitic acid), C16:1 (palmitoleic acid), C18:0 (stearic acid), C18:2 (linoleic acid) and C18:3 (linolenic acid), it indicates that the lipids produced from poly-microalgae cultures are suitable for biodiesel production. Thus, poly-microalgae cultures could be more efficient than mono-microalgae cultures in the remediation of DWW and for biodiesel feedstock production. © 2021 Elsevier Ltd
Citation: Journal of Environmental Management, 297
URI: https://doi.org/10.1016/j.jenvman.2021.113210
http://repository.iitr.ac.in/handle/123456789/24768
Issue Date: 2021
Publisher: Academic Press
Keywords: Biodiesel
Dairy wastewater
Lipid
Nutrients
Poly-microalgae cultures
ISSN: 3014797
Author Scopus IDs: 57116151100
55877611100
55930061600
7006049333
Author Affiliations: Chandra, R., Bioenergy Research Laboratory, Polymer and Process Engineering Department, Indian Institute of Technology Roorkee (Saharanpur Campus), Saharanpur, Uttar Pradesh 247001, India
Pradhan, S., Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Doha, Qatar
Patel, A., Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, Lulea, 97187, Sweden
Ghosh, U.K., Bioenergy Research Laboratory, Polymer and Process Engineering Department, Indian Institute of Technology Roorkee (Saharanpur Campus), Saharanpur, Uttar Pradesh 247001, India
Funding Details: The first author is thankful to the Ministry of Education (MoE) previously called as Ministry of Human Resource and Development ( MHRD ), Government of India, India for providing financial assistance to accomplish this work. Ministry of Human Resource Development, MHRD; Kementerian Pendidikan Malaysia, KPM
Corresponding Author: Ghosh, U.K.; Bioenergy Research Laboratory, India; email: uttam.ghosh@pe.iitr.ac.in
Appears in Collections:Journal Publications [PE]

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