Journal
ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY
Volume 13, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.ese.2022.100205
Keywords
Bioremediation; Wastewater treatment; Environmental applications; Microalgae; Co-culturing
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The rapid expansion of the global economy and human population has led to a shortage of water resources suitable for direct human consumption, making water remediation a global priority. Microalgae cultivation in various types of wastewaters has shown promise in removing contaminants from industrial and urban effluents. Microalgae-based wastewater treatment has gained attention for its low energy requirements, ability to thrive in diverse environmental conditions, and potential to transform wastewater nutrients into valuable compounds. This review highlights the application of microalgae in wastewater remediation, including the removal of various pollutants and the potential for resource recovery through different mechanisms.
The rapid expansion of both the global economy and the human population has led to a shortage of water resources suitable for direct human consumption. As a result, water remediation will inexorably become the primary focus on a global scale. Microalgae can be grown in various types of wastewaters (WW). They have a high potential to remove contaminants from the effluents of industries and urban areas. This review focuses on recent advances on WW remediation through microalgae cultivation. Attention has already been paid to microalgae-based wastewater treatment (WWT) due to its low energy re-quirements, the strong ability of microalgae to thrive under diverse environmental conditions, and the potential to transform WW nutrients into high-value compounds. It turned out that microalgae-based WWT is an economical and sustainable solution. Moreover, different types of toxins are removed by microalgae through biosorption, bioaccumulation, and biodegradation processes. Examples are toxins from agricultural runoffs and textile and pharmaceutical industrial effluents. Microalgae have the po-tential to mitigate carbon dioxide and make use of the micronutrients that are present in the effluents. This review paper highlights the application of microalgae in WW remediation and the remediation of diverse types of pollutants commonly present in WW through different mechanisms, simultaneous resource recovery, and efficient microalgae-based co-culturing systems along with bottlenecks and prospects. (c) 2022 The Authors. Published by Elsevier B.V. on behalf of Chinese Society for Environmental Sciences, Harbin Institute of Technology, Chinese Research Academy of Environmental Sciences. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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