Abstract
A pilot scale study was conducted to find out the different forms of metals if fly ash (FA) and bioaccumulation of these metals in the naturally growing vegetation on FA dumps. The total, acid extractable, bioavailable and water soluble fraction of metals of Fe, Cu, Mn, Zn, Ni, Co and Pb, and their bioaccumulation coefficients (BAC) on naturally growing vegetation were determined. FA samples had a neutral pH, low electrical conductivity, low organic C and trace amounts of N and P. The relative abundance of total metals in FA were found in the order Fe ≤ ≤ Zn ≤ Ni ≤ Co ≤ Cu. The concentration of bioavailable (DTPA) metals depend on the type and nature of coal used in thermal power stations. In the water the extract solution, only Fe and Zn were found above detection limits. After one year only four species of naturally occurring herbaceous vegetation were found growing and Cynodon dactylon (grass) covered almost entire surface of the FA. Iron accumulated to the greatest extent in vegetation followed by Mn, Zn, Cu, Pb, Ni and Co. The sequence of BAC for different metals were Fe (202) ≤ Mn (90) ≤ Zn (63) ≤ Pb (49) ≤ Ni (41) ≤ Cu (24). The experimental study revealed that Cynodon grass could be used for remediation of fly ash without any amendments, as this grass species act as metal excluder type.
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Aitkin, R. L. and Bell, L. C.: 1985, ‘Plant uptake and phytotoxicity of boron in Australian fly ash’, Plant Soil 84, 245–257.
Alloway, B. J.: 1990, Heavy Metals in Soils, Blackie, Glasgow and London, pp. 339.
Anon, 2000, ‘Indian Energy Sector — key issues: Managing fly ash’, http://www.teriin.org/energy/ flyash.htm.
Anon, 2002, ‘The potential for beneficial reuse of coal fly ash in Southwest Virginia mining environments’. Virginia cooperative extension, Pub No. 460-134, January 2002.
Carlson, C. L. and Adriano, D. C.: 1993, ‘Environmental impacts of coal combustion residues’, J. Environ. Qual. 22, 227–247.
Furr, A. K., Parkinson, T. F., Helfron, C. L., Reid, J. T., Haschek, W. M., Guetenmann, W. H., Guetenmann, W. H., Bache, C. A., St. John Jr., L. E. and Lisk, D. J.: 1978, ‘Elemental contents of tissues and excreta of lambs, goats and kids fed white clover growing on fly ash’, J. Agric. Food Chem. 26, 867–851.
Kabata, K. A. and Pendias, K.: 1992, Trace Elements in Soils and Plants, 2nd ed., CRC Press, Boca Raton, Florida, USA.
Khan, M. R. and Khan, M. W.: 1996, ‘The effect of fly ash on plant growth and yield of tomato’, Environ. Pollut. 92, 105–111.
Mehra, A., Farago, M. E. and Banerjee, D. K.: 1998, ‘Impact of fly ash from coal fired stations in Delhi, with particular reference to metal contamination’, Environ. Monit. Assess. 50, 15–35.
Misra, L. C. and Shukla, K. N.: 1986, ‘Effects of fly ash deposition on the growth metabolic and dry matter production on maize and soyabean’, Environ. Pollut. (Ser. A) 42, 1–3.
Rai, U. N., Pandey, K., Sinha, S., Singh, A., Saxena, R. and Gupta, D. K.: 2003, ‘Revegetating fly ash landfills with Prosopis juliflora L.: Impact of different amendments and Rhizobium inoculation’, Environ. Int. (in press).
Rai, U. N., Panday, K., Sinha, S., Singh, A., Saxena, R. and Gupta, D. K.: 2003, ‘Revegetating fly ash landfills with Prosopis juliflora L.: Impact of different amendments and Rhizobium inoculation’, Environ. International (in press) (www.Sciencedirect.com).
Reeves, R.D.: 2002, ‘Metal tolerance and metal accumulating plant exploration and exploitation. 9th New Phytologist symposium’, Heavy Metals and Plants. Philadelphia.
Sahu, K. C.: 1994, ‘Cost of coal combustion’, in: Survey of the Environment, The Hindu, Madras, pp. 47–51.
Sahu, K. C.: 1998, ‘Impact of residual soil on heavy metal leachate from fly ash pond at Korba-en experimental approach’, Indian J. Environ. Prot. 18, 498–504.
Shu, W. S., Ye, Zh., Lan, C. Y., Zhang, Z. Q. and Wong, M. H.: 2002, ‘Lead, zinc and copper accumulation and tolerance in populations of Paspalum distichum and Cynodon dactylon’, Environ. Pollu. 120, 445–453.
Sinha, S., Rai, U. N., Bhatt, K., Pandey, K. and Gupta, A. K.: 2004, ‘Fly ash induced oxidative stress and tolerance in Prosopis juliflora L. grown on different amended substrates’, Environ. Monit. Assess xxx, 1–11.
Tripathi, R. D., Vajpayee, P., Singh, N., Rai, U. N., Kumar, A., Ali, M. B., Kumar, B. and Yunus, M.: 2004, ‘Efficacy of various amendments for amelioration of fly ash toxicity: Growth performance and metal composition of Cassia siamea Lamk’, Chemosphere 54, 1581–1588.
Ure, A. M.: 1990, ‘Methods of analysis for heavy metals in soils’, in: B. J. Alloway (ed.), Heavy Metals in Soils, Blackie, Glasgow, pp. 40–80.
Wang, X., Shan, X., Zhang, S. and Wen, B.: 2004, ‘A model for evaluation of the phytoavailability of trace elements to vegetable under the field conditions’, Chemosphere 55, 811–822.
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Maiti, S.K., Nandhini, S. Bioavailability of Metals in Fly Ash and Their Bioaccumulation in Naturally Occurring Vegetation: A Pilot Scale Study. Environ Monit Assess 116, 263–273 (2006). https://doi.org/10.1007/s10661-006-7355-5
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DOI: https://doi.org/10.1007/s10661-006-7355-5