Cited by 253Pharmaceutical and Antibiotic Environmental ImpactsAdsorption and biosorption for pollutant removalConstructed Wetlands for Wastewater Treatment

Algae-mediated antibiotic wastewater treatment: a critical review

Open access
Li, Shengnan, Show, Pau Loke, Ngo, Huu Hao, Ho, Shih-Hsin·2022·Environmental Science and Ecotechnology

Abstract

The existence of continually increasing concentrations of antibiotics in the environment is a serious potential hazard due to their toxicity and persistence. Unfortunately, conventional treatment techniques, such as those utilized in wastewater treatment plants, are not efficient for the treatment of wastewater containing antibiotic. Recently, algae-based technologies have been found to be a sustainable and promising technique for antibiotic removal. Therefore, this review aims to provide a critical summary of algae-based technologies and their important role in antibiotic wastewater treatment. Algal removal mechanisms including bioadsorption, bioaccumulation, and biodegradation are discussed in detail, with using algae-bacteria consortia for antibiotic treatment, integration of algae with other microorganisms (fungi and multiple algal species), hybrid algae-based treatment and constructed wetlands, and the factors affecting algal antibiotic degradation comprehensively described and assessed. In addition, the use of algae as a precursor for the production of biochar is highlighted, along with the modification of biochar with other materials to improve its antibiotic removal capacity and hybrid algae-based treatment with advanced oxidation processes. Furthermore, recent novel approaches for enhancing antibiotic removal, such as the use of genetic engineering to enhance the antibiotic degradation capacity of algae and the integration of algal antibiotic removal with bioelectrochemical systems are discussed. Finally, some based on the critical review, key future research perspectives are proposed. Overall, this review systematically presents the current progress in algae-mediated antibiotic removal technologies, providing some novel insights for improved alleviation of antibiotic pollution in aquatic environments.

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  • In co-culturing, microalgae cooperate symbiotically with heterotrophic microorganisms such as yeast, bacteria, and fungi, resulting in exchange of nutrients and metabolites, which increase algae biomass yield and enhance bioremediation.

    “In a co-culturing approach, microalgae cooperate symbiotically with heterotrophic microorganisms such as yeast, bacteria, and fungi, resulting in the exchange of nutrients and metabolites, which, in turn, increase algae biomass yield and enhance bioremediation [37,38].”

    From Microalgae-based wastewater treatment: Mechanisms, challenges, recent advances, and future prospects (2023) · cites this paper as [38]

    In Perspective #1, the algae–bacteria consortia section says symbiotic communication with bacteria may improve algal biodegradation, while the algae–fungi section describes joint nutrient assimilation and improved antibiotic removal. These passages support the co-culture and bioremediation aspects, but do not establish yeast involvement or that nutrient and metabolite exchange increases algal biomass yield. The biomass discussed in the fungi section is fungal biomass, not increased algal yield. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Co-culturing of microalgae with other microbes enhances wastewater treatment efficiency.

    “Another promising strategy is co-culturing of microalgae with other microbes to enhance WWT efficiency.”

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Authors
Li, S., Show, P. L., Ngo, H. H., & Ho, S.-H.
Affiliations
  • Harbin Institute of Technology (CN)
  • University of Nottingham Malaysia Campus (MY)
  • University of Technology Sydney (AU)
Corresponding author
Ho, Shih-Hsin
Venue
Environmental Science and Ecotechnology
Publisher
Elsevier BV
Published
2022-01
Volume
9
Pages
100145
ISSN
  • 2096-9643 (ISSN-L)
  • 2666-4984
OpenAlex
W4206995827
Cited by
253
References
130
Citations by year
2026: 45 · 2025: 68 · 2024: 51 · 2023: 47 · 2022: 42
FWCI
2.97
Type
journal article
Language
en
Open access
Locations
  • Environmental Science and Ecotechnology (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Natural Science Foundation of China (52070057)
  • National Key Research and Development Program of China (2019YFC0408503, 51961165104)
Topics
  • Physical Sciences › Environmental Science › Pollution › Pharmaceutical and Antibiotic Environmental Impacts
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Environmental Science › Waste Management and Disposal › Constructed Wetlands for Wastewater Treatment
Keywords
antibiotic removal, algae-based wastewater treatment, biosorption, bioaccumulation, biodegradation, constructed wetlands, biochar, biochar modification, advanced oxidation processes, genetic engineering of algae, bioelectrochemical systems, antibiotic pollution, aquatic environment

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