Heavy metal remediation from wastewater using microalgae: Recent advances and future trends. (October 2022)

• Record Type: Journal Article
• Authors: Priya, A.K.; Jalil, A.A.; Vadivel, Sethumathavan; Dutta, Kingshuk; Rajendran, Saravanan; Fujii, Manabu; Soto-Moscoso, Matias
• Is Part Of: Chemosphere. Volume 305(2022)
• Publication Date: 2022-10
• Subjects: Microalgae -- Heavy metals -- Wastewater -- Cost-effective -- Environmentally friendly; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2022.135375
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: Microalgae-based wastewater treatment has previously been carried out in huge waste stabilization ponds. Microalgae, which can absorb carbon dioxide while reusing nutrients from sewage, has recently emerged as a new trend in the wastewater treatment business. Microalgae farming is thought to be a potential match for the modern world's energy strategy, which emphasizes low-cost and environmentally benign alternatives. Microalgae are being used to treat wastewater and make useful products. Microalgae, for example, is a promising renewable resource for producing biomass from wastewater nutrients because of its quick growth rate, short life span, and high carbon dioxide utilization efficacy. Microalgae-based bioremediation has grown in importance in the treatment of numerous types of wastewater in recent years. This solar-powered wastewater treatment technology has huge potential. However, there are still issues to be resolved in terms of land requirements, as well as the process's ecological feasibility and long-term viability, before these systems can be widely adopted. Due to cost and the need for a faultless downstream process, it is difficult to deploy this technology on a large scale. Other recent breakthroughs in wastewater microalgae farming have been investigated, such as how varied pressures affect microalgae growth and quality, as well as the number of high-value components produced. In this review, the future of this biotechnology has also been examined. Graphical abstract: Image 1 Highlights: The elements that influence the microalgal harvesting process were thoroughly addressed. Microalgae show how important they are in the field of cleaning up the environment. Microalgae bioremediation mechanisms and affecting factors are improved. Hybrid systems based on microalgae improve wastewater bioremediation.