Cited by 188Algal biology and biofuel productionPharmaceutical and Antibiotic Environmental ImpactsEnvironmental and Analytical Chemistry Studies

Microalgae based wastewater treatment for the removal of emerging contaminants: a review of challenges and opportunities

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Maryjoseph, Shanthamareen, Ketheesan, Balachandran·2020·Case Studies in Chemical and Environmental Engineering

Abstract

Emerging contaminants (ECs) are attracting considerable attention due to their potential risk to human health and ecosystem. The past decade has seen a renewed importance in microalgae for bioremediating ECs from wastewater. Several proof of concept studies have been published to rationalize the use of microalgae for bioremediating ECs at laboratory conditions. However, there has been little discussion on real world application of microalgae for bioremediation purposes. This review paper sheds new light on obstacles faced in commercial use of microalgae for bioremediating ECs. The presence of multiple ECs and their affinity for microalgae raise some concern about the validity of laboratory findings. Dynamic changes of environmental conditions and accidental contaminations can significantly influence rate of bioremediation in large scale system. Appropriate pilot scale studies may bridge the gap between the laboratory scale studies and commercial scale applications. Considering the fate of ECs in microalgal cell, more research is needed in the direction of biodegradation assisted bioremediation due to end use of algal biomass. In fact, a wide range of extremophile microalgae species can be screened for selective removal of ECs. In-depth investigations are needed to characterize the quality of wastewater effluent after the separation of microalgal biomass. Notably, life cycle analysis related studies are needed to look at the viability of microalgae assisted bioremediation of ECs.

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  • Implementing microalgae to treat wastewater faces challenges including harvesting the biomass to recover molecules synthesized by microalgae and the potential presence of toxic compounds such as antibiotics when microalgae are cultured in livestock wastewater.

    “Implementing microalgae to treat WW still faces several challenges, including harvesting the biomass to recover molecules synthesized by microalgae and the potential presence of toxic compounds when microalgae are cultured in livestock WW, such as antibiotics [165,166].”

    From Microalgae-based wastewater treatment: Mechanisms, challenges, recent advances, and future prospects (2023) · cites this paper as [166]

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  1. G. Hodaifa, A.M. Romero, M. Halioui, S. S anchez, November. Combined process for olive oil mill wastewater treatment based in flocculation, photolysis, microfiltration and microalgae culture, in: Euro-Mediterranean Conference for Environmental Integration, Springer, Cham, 2017, pp. 1127-1129.
  2. J.Q. Xiong, S.J. Kim, M.B. Kurade, S. Govindwar, R.A. Abou-Shanab, J.R. Kim, H.S. Roh, M.A. Khan, B.H. Jeon, Combined effects of sulfamethazine and sulfamethoxazole on a freshwater microalga, Scenedesmus obliquus: toxicity, biodegradation, and metabolic fate. Journal of hazardous materials 370 (2019) 138-146.

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Authors
Maryjoseph, S., & Ketheesan, B.
Affiliations
University of Jaffna (LK)
Corresponding author
Ketheesan, Balachandran
Venue
Case Studies in Chemical and Environmental Engineering
Publisher
Elsevier BV
Published
2020-09
Volume
2
Pages
100046
ISSN
2666-0164 (ISSN-L)
OpenAlex
W3091860063
Cited by
188
References
104
Citations by year
2026: 18 · 2025: 34 · 2024: 44 · 2023: 32 · 2022: 36 · 2021: 23 · 2020: 1
FWCI
4.55
Type
journal article
Language
en
Open access
Locations
  • Case Studies in Chemical and Environmental Engineering (publishedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
World Bank Group
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Physical Sciences › Environmental Science › Pollution › Pharmaceutical and Antibiotic Environmental Impacts
  • Physical Sciences › Environmental Science › Water Science and Technology › Environmental and Analytical Chemistry Studies
Keywords
microalgae, wastewater treatment, emerging contaminants, bioremediation, microalgal biomass, biodegradation, pilot-scale study, life cycle assessment, algal biomass utilization, wastewater effluent quality

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