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首页> 外文会议>International Conference on the Biogeochemistry of Trace Elements >Influence of coal ash/organic waste application on distribution of trace metals in soil, plant, and water
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Influence of coal ash/organic waste application on distribution of trace metals in soil, plant, and water

机译：煤灰/有机废物应用对土壤，植物和水中痕量金属分布的影响

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This study was conducted to evaluate effects of coal ash mixture (coal ash, biosolids and yard waste compost ratio of 1:1:1 v/v) on accumulation of trace metals in soil and their distribution in crop leaves and fruits, and its leaching potential into groundwater. Coal ash mixture was applied at rates of 0, 25, 75 Mg ha~(-1). Samples of soil and tomato (Lycopersicon esculentum Mill. cv. 'Sanibel') tissue (leaves and fruits) were collected and analyzed for trace metals (Zn, Cu, Mn, Fe, Cd, Pb, Ni, and Mo). Zero-tension pan lysimeters were installed to monitor water quality. Application of the coal ash mixture significantly increased AB-DTPA extractable Fe, Ni and Mo in treated soils and concentrations of Mn and Mo in tomato leaves. Only concentrations of Fe and Mo in tomato fruits from plots treated with this coal ash mixture were greater than those from control plots. Application of 75 Mg ha~(-1) coal ash mixture significantly increased total amounts of Zn, Pb and Mo collected in lysimeter water during 12 months following application. Concentrations of trace metals analyzed in this study were very low. The maximum concentrations of Mn, Pb and Cd in lysimeter water samples from both treated and control plots were only occasionally greater than MCL (Manxmen Contaminant Level for drinking water). Therefore, appropriate application of coal ash mixture should not lead to any significant detriment to soil, food, and groundwater.
机译：进行该研究以评估煤灰混合物（煤灰，生物糖和围场废物堆肥比例为1：1：1 V / V）对土壤中痕量金属的积累及其在作物叶片和水果中的分布，及其浸出潜在进入地下水。将煤灰混合物以0,25,75mg Ha〜（-1）的速率施用。土壤和番茄样品（Lycopersicon Esculentum Mill。CV.）收集并分析'SANIBEL'）组织（叶片和水果）以分析痕量金属（Zn，Cu，Mn，Fe，Cd，Pb，Ni和Mo）。安装零张力平移型号，以监测水质。煤灰混合物的应用显着增加了AB-DTPA可提取的Fe，Ni和Mo在番茄叶中处理的土壤和Mn和Mo的浓度。仅由该煤灰混合物处理的图中番茄果实中的Fe和Mo浓度大于来自对照图的番茄果实。施用75mg HA〜（-1）煤灰混合物在施用后12个月内显着增加了在溶血仪水中收集的Zn，Pb和Mo的总量。本研究分析的痕量金属的浓度非常低。来自治疗和对照图中的溶血仪水样中的Mn，Pb和Cd的最大浓度仅偶尔大于MCL（饮用水的曼克斯门污染物水平）。因此，适当应用煤灰混合物不应导致土壤，食物和地下水的任何显着损害。

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