Diatom mediated heavy metal remediation: A review

Bioresource Technology
Thomas Kiran MarellaArchana Tiwari

Abstract

Exposure to heavy metals is a major threat to aquatic bodies and is a global concern to our four main spheres of the earth viz. atmosphere, biosphere, hydrosphere, and lithosphere. The biosorption of pollutants using naturally inspired sources like microalgae has considerable advantages. Diatoms are the most dominant and diverse group of phytoplankton which accounts for 45% oceanic primary productivity. They perform a pioneer part in the biogeochemistry of metals in both fresh and marine water ecosystems. The diatoms play a significant role in degradation, speciation, and detoxification of chemical wastes and hazardous metals from polluted sites. Herein, an overview is presented about the ability of diatom algae to phycoremediate heavy metals by passive adsorption and active assimilation from their aqueous environments with an emphasis on extracellular and intracellular mechanisms involved in contaminant uptake through the frustules for preventing heavy metal toxicity.

Citations

May 22, 2020·Bulletin of Environmental Contamination and Toxicology·Thien Q NguyenR J Neil Emery
Sep 28, 2020·Environmental Science and Pollution Research International·Varinder Singh KanwarLata Rani
Jan 7, 2021·International Journal of Phytoremediation·R F Al-Thani, B T Yasseen
Nov 22, 2020·The Science of the Total Environment·A Gil-IzquierdoJ A Gabaldón
Feb 16, 2021·Journal of Hazardous Materials·Yixin HeHong Li
Apr 15, 2021·Ecotoxicology·Kariyil Veettil NeethuShambanagouda R Marigoudar
Jun 6, 2021·Environmental Pollution·Shweta Tripathi, Krishna Mohan Poluri
Jun 22, 2021·ACS Biomaterials Science & Engineering·Navid RabieeRajender S Varma
Oct 27, 2021·The Science of the Total Environment·Muhammad AkramQinyan Yue

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