...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemosphere >The effect of different levels of leachate on phytoremediation of pyrene-contaminated soil and simultaneous extraction of lead and cadmium
【24h】

The effect of different levels of leachate on phytoremediation of pyrene-contaminated soil and simultaneous extraction of lead and cadmium

机译：不同渗滤液水平对pyr污染土壤的植物修复及铅，镉同时提取的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Pyrene is one of the 16 group combinations of polyaromatic hydrocarbons, which are known as primary pollutants in the U.S. Environmental Protection Agency (USEPA) list. This study aimed to investigate the cross effect of different levels of landfill leachate on phytoremediation of pyrene-contaminated soil using the sorghum bicolor plant. The study parameters included the presence or absence of the plant, different concentrations of pyrene (150, 300, 500, 750, and 1000 mg kg(-1)), time (30, 60, and 90 days), and different levels of irrigation with leachate (0, 30, 50, 70, and 100%). Soil pyrene was measured every 30 days, and heavy metals (lead and cadmium) added to the soil by irrigation with leachate were measured in the soil and the plant at the end of 90 days. According to the results, pyrene removal efficiency after 90 days was 96% in irrigation treatments with 30% leachate in the presence of the plant and 67% in irrigation treatments with tap water in the presence of the plant. In addition, 95% of lead and 49% of cadmium added to the soil by irrigation with 30% leachate were extracted from the soil by the sorghum bicolor. According to the results, by increasing nutrients and number of soil bacteria during the cross treatment, landfill leachate increased the pyrene removal efficiency significantly during phytoremediation (p < 0.006) and the sorghum bicolor plant extracted the lead and cadmium of the leachate. In non-planting treatments, although adding high levels of leachate to the soil significantly improved the pyrene removal, it caused the levels of heavy metals, such as lead and cadmium, to exceed the allowable limit (p < 0.001). (C) 2020 Elsevier Ltd. All rights reserved.
机译：yr是16种多环芳烃组合之一，在美国环境保护署（USEPA）清单中被称为主要污染物。这项研究旨在调查不同水平的垃圾渗滤液对高粱双色植物对pyr污染土壤的植物修复的交叉影响。研究参数包括植物的存在与否，of的不同浓度（150、300、500、750和1000 mg kg（-1）），时间（30、60和90天）以及不同水平的用渗滤液（0％，30％，50％，70％和100％）灌溉。每30天测量一次土壤pyr，并在90天结束时测量土壤和植物中通过渗滤液灌溉而添加到土壤中的重金属（铅和镉）。根据结果​​，在存在植物的情况下，使用30％沥滤液的灌溉处理中90天后pyr的去除效率为96％，在存在植物的情况下，使用自来水进行灌溉处理中的pyr去除效率为67％。此外，通过高粱双色从土壤中提取了通过用30％渗滤液灌溉而添加到土壤中的95％的铅和49％的镉。根据结果​​，通过在交叉处理中增加养分和土壤细菌的数量，垃圾渗滤液在植物修复过程中显着提高了removal的去除效率（p <0.006），而高粱双色植物提取了渗滤液中的铅和镉。在非种植处理中，尽管向土壤中添加大量沥滤液可显着提高the的去除率，但它导致重金属（例如铅和镉）的含量超过允许的上限（p <0.001）。 （C）2020 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Chemosphere》 |2020年第5期|125845.1-125845.10|共10页
  • 作者

  • 作者单位

    Shiraz Univ Med Sci Sch Hlth Environm Hlth Shiraz Iran;

  • 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

    Phytoremediation; Pyrene; Leachate; Sorghum; Heavy metals;

    机译：植物修复;yr;渗滤液高粱;重金属;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号