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首页> 外文期刊>Environmental pollution >Effect of Pinus radiata derived biochars on soil sorption and desorption of phenanthrene
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Effect of Pinus radiata derived biochars on soil sorption and desorption of phenanthrene

机译：辐射松生物炭对菲吸附和解吸的影响

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摘要

Biochars are anthropogenic carbonaceous sorbent and their influences on the sorption of environmental contaminants need to be characterized. Here we evaluated the effect of Pinus radiata derived biochars on soil sorption and desorption of phenanthrene. Two biochars separately produced at 350 ℃ and 700 ℃ and three soils were tested. Biochar amendment generally enhanced the soil sorption of phenanthrene. The biochar produced at 700 ℃ generally showed a greater ability at enhancing a soil's sorption ability than that prepared at 350 ℃. The single-step desorption measurement showed an apparent hysteresis in biochar-amended soils. After 28 d equilibration, the sorptive capacity of biochar-amended soil (with an organic carbon content of 0.16%) significantly decreased. This study clearly suggested that biochar application enhanced soil sorption of hydrophobic organic compounds, but the magnitude of enhancement depended on the preparation of biochars, the indigenous soil organic carbon levels, and the contact time between soil and biochar.
机译：生物炭是人为的碳质吸附剂，需要表征它们对环境污染物吸附的影响。在这里，我们评估了辐射松生物炭对土壤中菲的吸附和解吸的影响。测试了分别在350℃和700℃下产生的两种生物炭和三种土壤。生物炭改良剂通常增强了菲对土壤的吸附。与在350℃下制备的生物炭相比，在700℃下产生的生物炭通常具有更大的增强土壤吸附能力的能力。单步解吸测量在生物炭改良土壤中显示出明显的滞后现象。平衡28 d后，生物炭改性土壤（有机碳含量为0.16％）的吸附能力显着下降。这项研究清楚地表明，生物炭的应用可以增强土壤对疏水性有机化合物的吸附能力，但是增强的程度取决于生物炭的制备，原生土壤有机碳水平以及土壤与生物炭之间的接触时间。

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  • 来源
    《Environmental pollution》 |2010年第9期|P.2821-2825|共5页
  • 作者

    Honghua Zhang; Kunde Lin; Hailong Wang; Jay Gan;

  • 作者单位

    College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China;

    rnCollege of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China Department of Environmental Sciences, University of California, Riverside, CA 92521 USA;

    rnScion, Private Bag 3020, Rotorua 3046, New Zealand;

    rnDepartment of Environmental Sciences, University of California, Riverside, CA 92521 USA;

  • 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

    biochar; sorption; desorption; phenanthrene; biomass;

    机译：生物炭吸附解吸菲;生物质;

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