Microalgae-biorefinery with cascading resource recovery design associated to dairy wastewater treatment.

Autor: Hemalatha M; Bioengineering and Environmental Sciences Lab, CEEFF, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), Hyderabad, India., Sravan JS; Bioengineering and Environmental Sciences Lab, CEEFF, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), Hyderabad, India., Min B; Department of Environmental Science and Engineering, Kyung Hee University, Seocheon-dong, Yongin-si, Gyeonggi-do 446-701, Republic of Korea., Venkata Mohan S; Bioengineering and Environmental Sciences Lab, CEEFF, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), Hyderabad, India; Department of Environmental Science and Engineering, Kyung Hee University, Seocheon-dong, Yongin-si, Gyeonggi-do 446-701, Republic of Korea. Electronic address: svmohan@iict.res.in.
Jazyk: angličtina
Zdroj: Bioresource technology [Bioresour Technol] 2019 Jul; Vol. 284, pp. 424-429. Date of Electronic Publication: 2019 Mar 21.
DOI: 10.1016/j.biortech.2019.03.106
Abstrakt: The potential of microalgae for the treatment of dairy wastewater (DWW) was studied by integrating with bioethanol production. At the end of treatment, organic carbon removal was observed to be 90% with simultaneous removal of nutrients. Biomass concentration increased from 3 rd day and reached to a maximum of 1.4 g L -1 by the end of cycle. The biomolecular composition of microalgae comprised of 38% carbohydrates, 15% proteins and 22% lipids. Reducing sugars extracted from deoiled microalgae showed highest percentage of glucose (54.12%) than other monomers. The reducing sugars obtained were utilized for the production of bioethanol via yeast fermentation using Saccharomyces cerevisiae. This resulted in the production of ethanol (3G) upto 116.2 mg g -1 with simultaneous decrease in reducing sugars upto 92 mg g -1 . The results obtained indicate potential of microalgae to produce multiple biobased products in a biorefinery framework.
(Copyright © 2019 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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