Food Industries Wastewater Recycling for Biodiesel Production through Microalgal Remediation

Amit, Divakar Dahiya, Uttam K. Ghosh, Poonam S. Nigam and Amit K. Jaiswal
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Amit: Department of Polymer and Process Engineering, Indian Institute of Technology, Roorkee 247667, India
Divakar Dahiya: Biomedical Sciences Research Institute, Ulster University, Coleraine BT52 1SA, Northern Ireland, UK
Uttam K. Ghosh: Department of Polymer and Process Engineering, Indian Institute of Technology, Roorkee 247667, India
Poonam S. Nigam: Biomedical Sciences Research Institute, Ulster University, Coleraine BT52 1SA, Northern Ireland, UK
Amit K. Jaiswal: School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin—City Campus, Central Quad, Grangegorman, D07 ADY7 Dublin, Ireland

Sustainability, 2021, vol. 13, issue 15, 1-17

Abstract: This article is an overview of a biosystem of food-industry wastewater (WW) treatment using microalgae towards circular bioeconomy through biosynthesis of compounds of added-value. Focusing on circular bioeconomy with concern to environmental pollution, the management of water-resource and energy-crisis could be combined; by upgrading conventional WW treatment and simultaneously producing a renewable and sustainable source of energy algal-lipids for biodiesel production. Phyco-remediation of food WW using microalgae has revealed many advantages that can fulfill new demands for the WW treatment. WWs can be valuable resources of micronutrients and organic content (carbon source) for algal cultivation. In this review, prospective routes for the production of value-added compounds (polysaccharides, amino acids, biofuels, and biopigments) along with the bioremediation of food industry WW have been discussed. Furthermore, limitations and issues of phyco-remediation of WW using microalgae have also been reviewed with perspectives for further research and development.

Keywords: food; agriculture; environment; biofuel; biodiesel; Algae; wastewater; lipid; circular bioeconomy (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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