Lead remediation is promoted by phosphate-solubilizing fungi and apatite the enhanced production of organic acid.

Front Bioeng Biotechnol

Anhui Province Key Laboratory of Farmland Conservation and Pollution Prevention, College of Resources and Environment, Anhui Agricultural University, Hefei, China.

Published: March 2023

Lead (Pb) is one of the most common heavy metal pollutants in the environment, which can indirectly or directly threaten human health. Lead immobilization by apatite can reduce the effectiveness of Pb cations the formation of pyromorphite (Pyro). However, the formation of Pyro is always depending on the release of phosphorus (P) from apatite. Phosphate-solubilizing fungi (PSF) can secrete large amounts of organic acid to promote the release of P from apatite. Although the combination of PSF and apatite has shown a huge potential in Pb remediation, this pathway needs to be more attention, especially for organic acid secretion by PSF. This research mainly reviews the possible pathway to strengthen Pb immobilization by PSF and apatite. Meanwhile, the limitation of this approach is also reviewed, with the aim of a better stabilizing effect of Pb in the environment and promoting the development of these remediation technologies.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10097878PMC
http://dx.doi.org/10.3389/fbioe.2023.1180431DOI Listing

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