https://scholars.lib.ntu.edu.tw/handle/123456789/289171
標題: | The effects of chemical remediation treatments on the extractability and speciation of cadmium and lead in contaminated soils | 作者: | ZUENG-SANG CHEN Lee, G.J. Liu, J.C. |
公開日期: | 2000 | 卷: | 41 | 期: | 1-2 | 起(迄)頁: | 235-242 | 來源出版物: | Chemosphere | 摘要: | Two rural soils contaminated by cadmium (Cd) and lead (Pb) were used to evaluate the effect of different chemical treatments on changes in speciation and extractability of Cd and Pb, and in phytoavailability to wheat. Triplicates of seven chemical treatments were tested to compare and evaluate the remediation techniques for contaminated soils using pot experiments. Treatments applied were calcium carbonate, a high quantity of phosphate salt, hog composts, iron oxide, manganese oxide, zeolite, and unamended control. Wheat (Triticum aestivum) was planted in the different amended soils for a further one month to evaluate the effectiVeneSs of treatments on uptake of Cd and Pb by the wheat shoots. Results indicated that addition of calcium carbonate, manganese oxide, or zeolite reduces the extractability of Cd or Pb in both soils, and significantly reduce the uptake of Cd and Pb by wheat shoots. Changes in the extractability and metal sequential fractionations indicate that the exchangeable (or available) form of Cd and Pb in two soils can be transformed into unavailable forms after these amendments. (C) 2000 Elsevier Science Ltd. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-0034102007&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/289171 |
DOI: | 10.1016/S0045-6535(99)00416-6 | SDG/關鍵字: | cadmium; calcium carbonate; lead; phosphate; extraction; heavy metal; pollutant removal; soil remediation; speciation (chemistry); article; chemical analysis; composting; environmental impact assessment; extraction; nonhuman; soil pollution; soil treatment; wheat; Biological Availability; Cadmium; Calcium Carbonate; Environmental Pollution; Inorganic Chemicals; Lead; Soil Pollutants; Triticum; Triticum aestivum |
顯示於: | 農業化學系 |
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