Wastewater based microalgal biorefinery for bioenergy production: Progress and challenges

Shashi Kant Bhatia, Sanjeet Mehariya, Ravi Kant Bhatia, Manu Kumar, Arivalagan Pugazhendhi, Mukesh Kumar Awasthi, A. E. Atabani, Gopalakrishnan Kumar, Wooseong Kim, Seung Oh Seo, Yung Hun Yang

Research output: Contribution to journalReview articlepeer-review

41 Citations (Scopus)

Abstract

Treatment of industrial and domestic wastewater is very important to protect downstream users from health risks and meet the freshwater demand of the ever-increasing world population. Different types of wastewater (textile, dairy, pharmaceutical, swine, municipal, etc.) vary in composition and require different treatment strategies. Wastewater management and treatment is an expensive process; hence, it is important to integrate relevant technology into this process to make it more feasible and cost-effective. Wastewater treatment using microalgae-based technology could be a global solution for resource recovery from wastewater and to provide affordable feedstock for bioenergy (biodiesel, biohydrogen, bio-alcohol, methane, and bioelectricity) production. Various microalgal cultivation systems (open or closed photobioreactors), turf scrubber, and hybrid systems have been developed. Although many algal biomass harvesting methods (physical, chemical, biological, and electromagnetic) have been reported, it is still an expensive process. In this review article, resource recovery from wastewater using algal cultivation, biomass harvesting, and various technologies applied in converting algal biomass into bioenergy, along with the various challenges that are encountered are discussed in brief.

Original languageEnglish
Article number141599
JournalScience of the Total Environment
Volume751
DOIs
Publication statusPublished - 2021 Jan 10

Bibliographical note

Funding Information:
The authors would like to acknowledge the KU Research Professor Program of Konkuk University, Seoul, South Korea. This study was supported by the National Research Foundation of Korea (NRF) (NRF-2019R1F1A1058805 and NRF-2019M3E6A1103979), Research Program to solve social issues of the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT, South Korea (2017M3A9E4077234). This work was also supported by Polar Academic Program (PAP, PE20900). This study was also carried out with the support of R&D Program for Forest Science Technology (Project No. 2020261C10-2022-AC02) provided by Korea Forest Service (Korea Forestry Promotion Institute). Shashi Kant Bhatia: Conceptualization, Writing - Review & Editing, Sanjeet Mehriya: Writing - Review & Editing, Visualization, Ravi Kant Bhatia: Writing - Review & Editing, Manu Kumar: Writing - Original Draft, Arivalagan Pugazhendhi: Writing - Original Draft, Mukesh Kumar Awasthi: Writing - Original Draft, A.E Atabani: Writing - Review & Editing, Gopalakrishnan Kumar: Writing - Original Draft, Wooseong Kim: Review & Editing, Seung-Oh Seo: Review & Editing, Yung-Hun Yang: Conceptualization, Writing - Review & Editing, Supervision.

Funding Information:
The authors would like to acknowledge the KU Research Professor Program of Konkuk University, Seoul, South Korea. This study was supported by the National Research Foundation of Korea (NRF) ( NRF-2019R1F1A1058805 and NRF-2019M3E6A1103979 ), Research Program to solve social issues of the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT, South Korea ( 2017M3A9E4077234 ). This work was also supported by Polar Academic Program (PAP, PE20900 ). This study was also carried out with the support of R&D Program for Forest Science Technology (Project No. 2020261C10-2022-AC02 ) provided by Korea Forest Service (Korea Forestry Promotion Institute).

Publisher Copyright:
© 2020 Elsevier B.V.

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution

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