Organic Waste Amendments Effect on Pb Uptake by Sunflower from Highly Pb-Contaminated Soil
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Abstract
A pot experiment was conducted to study the effects of three organic waste types (i.e., cow manure, sewage sludge and municipal solid waste compost) on Lead (Pb) uptake by sunflower (Helianthus annuus L.) from highly Pb-contaminated soil. The organic wastes were applied to the soil at the rates of 100-3,000 kg N/ha in the presence of EDTA at 5 mmol/kg. The results indicated that the application of the organic wastes, especially of the cow manure, led to plant growth and biomass increment. The concentration of Pb in roots, leaves, and stems of sunflower significantly decreased when the organic waste were applied. The Pb concentration of sunflower ranged from 2,218 to 3,382 mg/kg, 622 to 3,055 mg/kg and 382 to 959 mg/kg in roots, leaves, and stems, respectively. For a comparison of the three plant parts, leaves accounted for the majority for the Pb uptake and accumulation. Sequential fractionations of the soil after harvesting indicated that addition of these organic wastes can redistribute Pb in the soil from more to less mobile fractions.
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Copyright @2021 Engineering Transactions
Faculty of Engineering and Technology
Mahanakorn University of Technology
References
E.M. Cooper, J.T. Sims, S.D. Cunningham, J.W. Huang and W. R. Berti, “Chelate-assisted phytoextraction of lead from contaminated soils”, Journal of Environmental Quality, vol. 28, no. 6, pp. 1709-1719, 1999.
J. W. Wong, W. W. Wong, Z. Wei, and H. Jagadeesan, “Alkaline biosolids and EDTA of phytoremediation of an acidc loamy soil spiked with cadmium”, Science of The Total Environment, vol. 324, no. 1-3 pp. 235-246, 2004.
J. R. Henry, “An overview of phytoremediation of lead and mercury, U.S. Environmental Protection Agency, http://clu-in.org, 2000.
P. Alvarenga, A.P. Goncalves, R.M. Fernandes, A. da Varennes, G. Vallini, E. Duarte and A.G. Cunha-Queda, “Organic residues as immobilizing agents in aided phytostabilization: effects on soil chmical characteristics”, Chemosphere, vol. 74, no. 10, pp. 1292-1300, 2009.
ธิพา พานิช และ ศุภเกียรติ ศรีพนมธนากร “ผลของการเติมของเสียอินทรีย์ที่มีต่อลักษณะการชะละลายจากดินปนเปื้อนตะกั่วในระดับสูง”วิศวกรรมสารฉบับวิจัยและพัฒนา ปีที่ 21 ฉบับที่ 3 หน้า 35-45, 2553.
กรมส่งเสริมการเกษตร กระทรวงเกษตรและสหกรณ์ “ทานตะวัน” http://www.doae.go.th/library, 2541.
A. Tessier, P.G.C. Cambell and M. Bisson, “Sequential extraction procedure for the speciation of particulate trace metals”, Analytical Chemistry, vol. 51, pp 844-851, 1979.
N. Tawinteung, Physico Chemical Technique, Soil Washing and Soil Flushing for Remediation of Lead Contaminated Soils, PhD. Dissertation, Inter-University Program on Environmental Toxicology, Asian Institute of Technology, Thailand, 2004.
Y. Chen, X.D. Li and Z.G. Shen, “Leaching and uptake of heavy metals by ten different species of plants during an EDTA-assisted phytoextraction process”, Chemosphere, vol. 57, no. 3, pp. 187-196, 2004.
B. Boonyapookana,“Phytoremediation techniques for a Lead contaminated site focusing hyperaccumulating plants”, PhD. Dissertation, Technical Science, Asian Institute of Technology, Thailand, 2004.