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首页> 外文期刊>Environmental Monitoring and Assessment >Effect of citric acid on metals mobility in pruning wastes and biosolids compost and metals uptake in Atriplex halimus and Rosmarinus officinalis
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Effect of citric acid on metals mobility in pruning wastes and biosolids compost and metals uptake in Atriplex halimus and Rosmarinus officinalis

机译：柠檬酸对修剪的滨藜和迷迭香中金属在修剪废物和生物固体堆肥中的迁移率以及金属吸收的影响

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摘要

To assess metal mobility in pruning waste and biosolids compost (pH6.9 and total concentration of metals in milligram per kilogram of Cd 1.9, Cu 132, Fe 8,513, Mn 192, Pb 81, and Zn 313), shrubs species Atriplex halimus and Rosmarinus officinalis were transplanted in this substrate and irrigated with citric acid (4 gL~-1, pH2.9) and nutrient solution daily for 60 days. Citric acid significantly increased the concentrations of soluble Mn and Fe in the nutrient substrate solution measured by suction probes, while other metals did not vary in concentration (Cu and Zn) or were not observed at detectable levels (Cd and Pb). In plants, citric acid significantly increased the concentrations of Cu (2.7±0.1-3.3±0.1 mgkg~-1), Fe (49.2±5.2-76.8±6.8mgkg~-1),andMn(7.2±l.l-11.4± 0.7 mgkg~-1) in leaves of R. officinalis, whereas the concentration of only Mn (25.4±0.3-42.2±2.9 mg kg~-1) was increased in A. halimus. Increasing Fe and Mn solubility by citric acid addition indicates the possibility of using it to improve plant nutrition. The mobility of metals in this substrate was influenced for the concentration of the metal, the degree of humification of organic matter and its high Fe content.
机译：为了评估修剪的废物和生物固体堆肥中的金属迁移率（pH6.9和金属的总浓度，以每千克Cd 1.9，Cu 132，Fe 8,513，Mn 192，Pb 81和Zn 313的毫克计），灌木属滨藜和迷迭香将厚朴移植到该基质中，并每天用柠檬酸（4 gL〜-1，pH2.9）和营养液灌溉60天。柠檬酸显着提高了通过吸气探针测得的营养底物溶液中可溶性Mn和Fe的浓度，而其他金属的浓度（Cu和Zn）没有变化或未检测到可检测的水平（Cd和Pb）。在植物中，柠檬酸显着增加了Cu（2.7±0.1-3.3±0.1 mgkg〜-1），Fe（49.2±5.2-76.8±6.8mgkg〜-1）和Mn（7.2±ll-11.4±0.7 mgkg）的浓度厚朴叶中的〜-1），而哈利木霉中仅Mn（25.4±0.3-42.2±2.9 mg kg〜-1）的浓度增加。通过添加柠檬酸增加铁和锰的溶解度表明使用它来改善植物营养的可能性。金属在该基材中的迁移率受金属浓度，有机物的腐殖化程度及其高铁含量的影响。

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  • 来源
    《Environmental Monitoring and Assessment》 |2013年第5期|4221-4229|共9页
  • 作者

    Y. Tapia; E. Eymar; A. Garate; A. Masaguer;

  • 作者单位

    Departamento de Quimica Agricola,Universidad Autonoma de Madrid,Francisco Tomas y Valiente 7,28049 Madrid, Spain;

    Departamento de Quimica Agricola,Universidad Autonoma de Madrid,Francisco Tomas y Valiente 7,28049 Madrid, Spain;

    Departamento de Quimica Agricola,Universidad Autonoma de Madrid,Francisco Tomas y Valiente 7,28049 Madrid, Spain;

    Departamento de Edafologia, ETSIA,Universidad Politecnica de Madrid,Avda. Complutense s,28040 Madrid, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    metal bioavailability; sequential extraction; suction probes; sewage sludge;

    机译：金属生物利用度;顺序提取;吸力探针污水污泥;

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