Cited by 86Algal biology and biofuel productionAdsorption and biosorption for pollutant removalEnvironmental and Analytical Chemistry Studies

Microalgae-based bioremediation of refractory pollutants: an approach towards environmental sustainability

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El-Sheekh, Mostafa M., El-Kassas, Hala Y., Ali, Sameh S.·2025·Microbial Cell Factories

Abstract

Abstract Extensive anthropogenic activity has led to the accumulation of organic and inorganic contaminants in diverse ecosystems, which presents significant challenges for the environment and its inhabitants. Utilizing microalgae as a bioremediation tool can present a potential solution to these challenges. Microalgae have gained significant attention as a promising biotechnological solution for detoxifying environmental pollutants. This is due to their advantages, such as rapid growth rate, cost-effectiveness, high oil-rich biomass production, and ease of implementation. Moreover, microalgae-based remediation is more environmentally sustainable for not generating additional waste sludge, capturing atmospheric CO 2 , and being efficient for nutrient recycling and sustainable algal biomass production for biofuels and high-value-added products generation. Hence, microalgae can achieve sustainability's three main pillars (environmental, economic, and social). Microalgal biomass can mediate contaminated wastewater effectively through accumulation, adsorption, and metabolism. These mechanisms enable the microalgae to reduce the concentration of heavy metals and organic contaminants to levels that are considered non-toxic. However, several factors, such as microalgal strain, cultivation technique, and the type of pollutants, limit the understanding of the microalgal removal mechanism and efficiency. Furthermore, adopting novel technological advancements (e.g., nanotechnology) may serve as a viable approach to address the challenge of refractory pollutants and bioremediation process sustainability. Therefore, this review discusses the mechanism and the ability of different microalgal species to mitigate persistent refractory pollutants, such as industrial effluents, dyes, pesticides, and pharmaceuticals. Also, this review paper provided insight into the production of nanomaterials, nanoparticles, and nanoparticle-based biosensors from microalgae and the immobilization of microalgae on nanomaterials to enhance bioremediation process efficiency. This review may open a new avenue for future advancing research regarding a sustainable biodegradation process of refractory pollutants.

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  • From an environmental perspective, the narrative surrounding microalgae is about their major impact on bioremediation, where they capture CO2 from the atmosphere and absorb pollutants from wastewater, while also producing value-added biomass.

    “From an environmental perspective, the narrative surrounding microalgae is about their major impact on bioremediation, where they capture CO2 from the atmosphere and absorb pollutants from wastewater, while also producing value-added biomass (Bhatt et al., 2022; El-Sheekh et al., 2025).”

    From Microalgae biotechnology and its role in sustainable and healthy food design (2025) · cites this paper as El-Sheekh et al., 2025

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Research works printed but not linked: 12

  1. [42]Sforza E, Gris B, de Farias Silva C, Morosinotto T, Bertucco A. Effects of light on cultivation of Scenedesmus obliquus in batch and continuous flat plate photobioreactor. Chem Eng. 2014;38:211.
  2. [51]Gani P, Sunar NM, Matias-Peralta HM, Apandi N. An overview of environmental factor’s effect on the growth of microalgae. J Appl Chem Nat Resour. 2019;1(2):1–5.
  3. [68]Athira K, Sathish A, Nithya K, Guhananthan A. Corn cob immobilised Chlorella sorokiniana for the sequestration of chromium ions from aqueous solution. Mater TodayProc. 2020;33:2148–55.
  4. [160]Rajasulochana P, Dhamotharan R, Murugesan S, Murthy ARC. Bioremediation of oil refinery effluent by using Scenedesmus obliquus. J Am Sci. 2009;5(4):17–22.
  5. [161]Abraham J, Nanda S. Evaluation of textile effluents before and after treatment with cyanobacteria. J Ind Pollut Control. 2010;26:149–52.
  6. [184]Gelebo GG, Tessema LH, Kehshin KT, Gebremariam HH, Gebremikal ET, Motuma MT, Ayele A, Getachew D, Benor S, Suresh A. Phycoremediation of synthetic dyes in an aqueous solution using an indigenous Oscillatoria sp., from Ethiopia. Ethiop J Sci Sustain Dev. 2020;7(2):14–20.
  7. [188]Naji NS, Salman JM. Effect of temperature variation on the efficacy of Chlorella vulgaris in decolorization of Congo red from aqueous solutions. Biochem Cell Arch. 2019;19(2):4169–74.
  8. [193]Brahmbhatt NH, Jasrai RT. Biodegradation of reactive dyes by two microalgal species. Int J Sci Res. 2016;4(5):1697–702.
  9. [196]Brahmbhatt NH, Jasrai RT. The role of algae in bioremediation of textile effluent. Methods. 2016;21:28.
  10. [198]Kiruthika S, Rajendran R. A review on bioremediation of a zo dyes using microbial consortium from different sources. Asian J Microbiol Biotech Environ Sci. 2020;22(4):614–30.
  11. [206]Kehrein P, Van Loosdrecht M, Osseweijer P, Garfí M, Dewulf J, Posada J. A critical review of resource recovery from municipal wastewater treatment plants–market supply potentials, technologies and bottlenecks. Environ Sci: Water Res Technol. 2020;6(4):877–910.
  12. [240]Agarwal P, Gupta R, Agarwal N. Advances in synthesis and applications of microalgal nanoparticles for wastewater treatment. J Nanotechnol. 2019;2019(1):7392713.

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Authors
El-Sheekh, M. M., El-Kassas, H. Y., & Ali, S. S.
Affiliations
  • Tanta University (EG)
  • National Institute of Oceanography and Fisheries (EG)
Corresponding author
El-Sheekh, Mostafa M.
Venue
Microbial Cell Factories
Published
2025-01-14
Volume
24
Issue
1
Pages
19-19
ISSN
1475-2859 (ISSN-L)
OpenAlex
W4406362337
Cited by
86
References
263
Citations by year
2026: 49 · 2025: 37
FWCI
3.94
Type
journal article
Language
en
Open access
Locations
  • Microbial Cell Factories (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Tanta University
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Environmental Science › Water Science and Technology › Environmental and Analytical Chemistry Studies
Keywords
microalgae, bioremediation, recalcitrant pollutants, heavy metals, organic pollutants, dye removal, pesticide removal, pharmaceutical pollutants, industrial wastewater, microalgal biomass, nanomaterials, nanoparticle biosensors, microalgae immobilization, wastewater treatment, CO2 capture, biofuels, nanotechnology
MeSH terms
Biodegradation, Environmental, Environmental Pollutants, Biomass, Metals, Heavy, Microalgae

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