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Ecological restoration of coal fly ash–dumped area through bamboo plantation

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Abstract

The present study entails the phytoremediation potential of different bamboo species on 5-year-old FA-dumped site near Koradi thermal power plant of Nagpur, Maharashtra, India. The selected FA-dumped site was treated with farmyard manure, press mud, and bio fertilizer followed by plantation of six promising species of bamboo namely Bambusa balcooa Roxb., Dendrocalamus stocksii (Munro.) M. Kumar, Remesh and Unnikrishnan, Bambusa bambos (L.) Voss, Bambusa wamin E.G. Camus, Bambusa vulgaris var. striata (Lodd. ex Lindl.) Gamble, and Bambusa vulgaris var. vittata Riviere and Riviere. The experimental results indicated that the organic input in the FA-dumped site nourished the soil by improving its physico-chemical, and biological characteristics. The results revealed the contamination of the site with different trace elements in varied quantity including Cr (89.29 mg kg−1), Zn (84.77 mg kg−1), Ni (28.84 mg kg−1), Cu (22.91 mg kg−1), Li (19.65 mg kg−1), Pb (13.47 mg kg−1), and Cd (2.35 mg kg−1). A drastic reduction in concentration of heavy metals in FA was observed after 1 year of bamboo plantation as compared to the initial condition. The results showed that bamboo species are good excluders of Ba, Co, Cr, Li, Ni, Mn, and Zn, whereas they are good accumulators of Cd, Pb, and Cu. The values of biochemical parameters, such as pH, total chlorophyll, ascorbic acid (AA), and relative water content of all the bamboo leaves ranged from 5.11–5.70, 1.56-6.33 mg g−1, 0.16-0.19 mg g−1, and 60.23–76.68%, respectively. It is thereby concluded that the bamboo plantation with biofertilizers and organic amendments may indicate adaptive response to environmental pollution on FA-dumped site.

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Abbreviations

FA:

Fly ash

BCF:

Bioconcentration factor

TF:

Translocation factor

TPPs:

Thermal power plants

VAM:

Vesicular arbuscular mycorrhiza

AA:

Ascorbic acid

TCS:

Total carbon sequestration

MTs:

Million tonnes

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Acknowledgments

All the authors are grateful to M/S MAHAGENCO Ltd., Koradi, Maharashtra, India and the Director, CSIR-NEERI for facilitating and supporting the activities.

Availability of data and materials

All data generated or analyzed during this study are included in this published article [and its supplementary information files].

Funding

M/S MAHAGENCO Ltd., Koradi, Maharashtra, India

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Authors and Affiliations

Authors

Contributions

Raushan Kumar (investigation, formal analysis, writing—original draft), Mohan Manu T (software, validation, visualization), Manoj Kumar (supervision), Sanjog Tarachand Thul (resources), Vimal Chandra Pandey (resources), Swati Yadav (investigation, methodology), Lal Singh (funding acquisition, data curation, project administration, and writing), and Sunil Kumar (writing—review and editing).

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Correspondence to Lal Singh or Sunil Kumar.

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The authors declare that they have no competing interests.

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Responsible Editor: Elena Maestri

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Kumar, R., Thangaraju, M.M., Kumar, M. et al. Ecological restoration of coal fly ash–dumped area through bamboo plantation. Environ Sci Pollut Res 28, 33416–33432 (2021). https://doi.org/10.1007/s11356-021-12995-7

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  • DOI: https://doi.org/10.1007/s11356-021-12995-7

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