Promising strategies of circular bioeconomy using heavy metal phytoremediated plants – A critical review

• Published in: Chemosphere (Oxford) 2023-02, Vol.313, p.137097, Article 137097
• Main Authors: Iyyappan, J., Baskar, G., Deepanraj, B., Anand, A. Vivek, Saravanan, R., Awasthi, Mukesh Kumar
• Format: Article
• Language: English
• Subjects: Biodegradation, Environmental; Bioproducts; Circular bioeconomy; Heavy metals; Metals, Heavy - toxicity; Phytoremediation; Plants; Reutilization; Soil Pollutants - toxicity
• ISSN: 0045-6535; 1879-1298
• DOI: 10.1016/j.chemosphere.2022.137097

Phytoremediation is an excellent method for removing harmful heavy metals from the environment since it is eco-friendly, uses little energy, and is inexpensive. However, as phytoremediated plants can turn into secondary sources for heavy metals, complete heavy metal removal from phytoremediated plants is necessary. Elimination of toxic heavy metals from phytoremediated plants should be considered with foremost care. This review highlights about important sources of heavy metal contamination, health effects caused by heavy metal contamination and technological breakthroughs of phytoremediation. This review critically emphasis about promising strategies to be engaged for absolute reutilization of heavy metals and spectacular approaches of production of commercially imperative products from phytoremediated plants through circular bioeconomy with key barriers. Thus, phytoremediation combined with circular bioeconomy can create a new platform for the eco-friendly life. [Display omitted] •Phytoremediation is a promising technology for elimination of toxic heavy metals.•Consequences of toxic metals in phytoremediated plants were discussed.•Complete elimination of heavy metals is essential to achieve eco-friendly life.•Conversion of phytoremediated plant into bio products could lead to increase bioeconomy.