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首页> 外文期刊>Universal Journal of Environmental Research and Technology >Remediation of trace metal Contaminated Auto-mechanic soils with Mineral Supplemented-organic Amendments
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Remediation of trace metal Contaminated Auto-mechanic soils with Mineral Supplemented-organic Amendments

机译：矿物补充有机物修复修复痕量金属污染的自动机械土壤

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Trace metal contamination of soil and surface waters arising from increased emissions from industries,traffic, auto-mechanic activities and agriculture raise concern on human health and environmental quality. The aim of this study was to find practical and cost-effective measures to reduce metal uptake in crops grown on metal contaminated soils. A laboratory batch experiment using 6 potential mineral-organic amendment combinations in the ratio 1: 2, (a)composted Farm yard manure (cFYM) + Gravel sludge ( GrS), (b) Vemicompost ( VC) + GrS, (c) composted sewage sludge (cSS)+ GrS , ( d) Red mud (RM)+ cFYM), (e) RM + VC, (f) cSS+ RM, were used to treat trace metal contaminated soil in a completely randomized pot experiment using Amaranthus viridis as a test crop. Result showed that all the amendment combinations had varied potential to reduce metal uptake by Amaranthus viridis when compared to control. There was appreciable reduction in metal leachability across all the amendments: Cd ( cFYM +RM> cSS+GrS>cSS+RM>Control>VC+RM >VC+GrS.Acid extractable (DTPA) fractions of Cd, Pb, Cu and Zn were reduced by up to 76%, 79%, 65% and 49%, respectively in amended soils. Investigations on long term effects of metal mobility is recommended.
机译：由于工业，交通，自动机械活动和农业排放增加而引起的土壤和地表水中微量金属污染引起了人们对人类健康和环境质量的关注。这项研究的目的是找到减少金属污染土壤上种植的作物中金属吸收的实用且具有成本效益的措施。实验室分批实验，使用6种潜在的矿物质-有机改良剂组合，比例为1：2，（a）堆肥（cFYM）+碎石污泥（GrS），（b）半堆肥（VC）+ GrS，（c）堆肥污水污泥（cSS）+ GrS，（d）赤泥（RM）+ cFYM），（e）RM + VC，（f）cSS + RM，在使用A菜的完全随机盆栽试验中用于处理痕量金属污染的土壤作为试验作物。结果表明，与对照相比，所有的改良剂组合具有减少potential菜中金属吸收的潜力。在所有修订中，金属的浸出性均显着降低：Cd（cFYM + RM> cSS + GrS> cSS + RM> Control> VC + RM> VC + GrS.Cd，Pb，Cu和Zn的可萃取酸（DTPA）在改良土壤中，这些元素分别减少了76％，79％，65％和49％，建议对金属迁移率的长期影响进行研究。

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