Phytoremediation Potential of Heavy Metals Using Biochar and Accumulator Plants: A Sustainable Approach Towards Cleaner Environments
- Author: mycolabadmin
- 11/14/2025
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Summary
Researchers tested whether mixing coconut fiber biochar with contaminated mine soil could help plants called Sanvitalia procumbens clean up heavy metal pollution. The plants absorbed less toxic metals when grown in the biochar-amended soil, grew bigger, stayed healthier with more green coloring, and experienced less genetic damage. Using this natural byproduct from coconut processing as a soil amendment proved to be an effective and sustainable way to reduce heavy metal contamination risks to the environment and food chain.
Background
Heavy metal contamination from mining activities poses significant environmental and health risks. Native plant species combined with organic amendments like biochar show promise for remediating mine tailings. This study evaluates coconut fiber biochar as a sustainable amendment for phytoremediation strategies.
Objective
To evaluate the capability of coconut fiber biochar in combination with Sanvitalia procumbens to phytostabilize heavy metals in mine tailings. The study analyzes heavy metal bioaccumulation levels in plant tissues and effects on morphological, physiological, and genotoxic parameters.
Results
S. procumbens accumulated metals in the pattern Zn > Pb > Cu > Cd. Plants grown in tailing/biochar substrate showed significantly lower heavy metal bioaccumulation (2.12-3.10 times lower) compared to tailing substrate. Biochar treatment increased biomass production, chlorophyll concentration, and reduced genetic damage levels.
Conclusion
Incorporating coconut fiber biochar as a soil amendment significantly improves heavy metal phytostabilization efficiency by reducing bioaccumulation and enhancing plant health. This sustainable approach utilizing agro-industrial waste represents an effective strategy for reducing ecological risk and environmental contamination.
- Published in:Plants (Basel),
- Study Type:Experimental Study,
- Source: PMC12656689; PMID: 41304621; DOI: 10.3390/plants14223470