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A comparative study of the most effective amendment for Pb, Zn and Cd immobilization in contaminated soils

机译:污染土壤中铅,锌和镉固定最有效修正的比较研究

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摘要

The problem of an extensive contamination of soils with metals can be resolved using an in situ chemical immobilization technology. Five substances (natural zeolite, bog iron ore, "Polifoska 15" fertilizer, triple superphosphate, diammonium phosphate) were tested to determine their efficiency to immobilize Zn, Pb and Cd in smelter-contaminated soil in the Upper Silesia region. Soil samples were collected at three sites located in the vincity of a Pb-Zn smelter and a sludge landfill near the town of Bukowno. Effective reduction of leachable and fitoavailable Zn, Pb and Cd concentrations in soil was observed after addition of diammonium phosphate, "Polifoska 15" fertilizer and bog iron ore amendments. Additional test proved that immobilization effect gained by these amendments sustains at low-temperature conditions. It was noticed that phosphate addition resulted in lowering pH and mobilization of As(V) in soils. Good immobilization effectiveness and lack of major adverse effects of bog iron application suggest that this is the method of choice.
机译:使用原位化学固定技术可以解决土壤被金属广泛污染的问题。测试了五种物质(天然沸石,沼泽铁矿石,“ Polifoska 15”肥料,三重过磷酸钙,磷酸二铵),以确定它们在上西里西亚地区受冶炼厂污染的土壤中固定Zn,Pb和Cd的效率。在位于Bukowno镇附近的Pb-Zn冶炼厂和污泥填埋场附近的三个地点收集了土壤样品。加入磷酸氢二铵,“ Polifoska 15”肥料和沼泽铁矿石改良剂后,土壤中可浸出和可利用的锌,铅和镉的浓度有效降低。附加测试证明,这些修饰物获得的固定效果在低温条件下仍可保持。注意到磷酸盐的添加导致土壤中pH值的降低和As(V)的迁移。良好的固定效果和使用生铁的主要副作用都没有,这表明这是一种选择的方法。

著录项

  • 来源
    《Journal of Environmental Science and Health》 |2011年第13期|p.1491-1502|共12页
  • 作者单位

    Polish Geological Institute, National Research Institute, Holy Cross Mts. Branch, Kielce, Poland;

    AGH University of Science and Technology, Faculty of Geology, Geophysics and Environment Protection, Department of Mineralogy, Petrography and Geochemistry, Krakow, Poland,AGH University of Science and Technology, Faculty of Geology, Geophysics and Environment Protection, Department of Mineralogy, Petrography and Geochemistry, al. Mickiewicza 30, Krakow, Poland;

    AGH University of Science and Technology, Faculty of Geology, Geophysics and Environment Protection, Department of Mineralogy, Petrography and Geochemistry, Krakow, Poland;

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

    heavy metals; sorbents; fertilizers; bioavailability; in situ remediation; sorption; precipitation;

    机译:重金属;吸附剂肥料;生物利用度原位修复;吸附沉淀;

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