• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Scientific Reports >In situ immobilisation of toxic metals in soil using Maifan stone and illite/smectite clay
【2h】

In situ immobilisation of toxic metals in soil using Maifan stone and illite/smectite clay

机译：用麦饭石和伊利石/蒙脱石粘土原位固定土壤中的有毒金属

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Clay minerals have been proposed as amendments for remediating metal-contaminated soils owing to their abundant reserves, high performance, simplicity of use and low cost. Two novel clay minerals, Maifan stone and illite/smectite clay, were examined in the in situ immobilisation of soil metals. The application of 0.5% Maifan stone or illite/smectite clay to field soils significantly decreased the fractions of diethylenetriaminepentaacetic acid (DTPA)-extractable Cd, Ni, Cr, Zn, Cu and Pb. Furthermore, reductions of 35.4% and 7.0% in the DTPA-extractable fraction of Cd were obtained with the Maifan stone and illite/smectite clay treatments, respectively, which also significantly reduced the uptake of Cd, Ni, Cr, Zn, Cu and Pb in the edible parts of Brassica rapa subspecies pekinensis, Brassica campestris and Spinacia oleracea. Quantitatively, the Maifan stone treatment reduced the metal uptake in B. rapa ssp. Pekinensis, B. campestris and S. oleracea from 11.6% to 62.2%, 4.6% to 41.8% and 11.3% to 58.2%, respectively, whereas illite/smectite clay produced reductions of 8.5% to 62.8% and 4.2% to 37.6% in the metal uptake in B. rapa ssp. Pekinensis and B. campestris, respectively. Therefore, both Maifan stone and illite/smectite clay are promising amendments for contaminated soil remediation.
机译：粘土矿物由于其丰富的储量，高性能，使用简单和成本低等优点，已被提议作为修复金属污染土壤的改良剂。在土壤金属的原位固定中，研究了两种新型粘土矿物，麦饭石和伊利石/蒙脱石粘土。在田间土壤中使用0.5％麦饭石或伊利石/蒙脱石粘土可显着降低二亚乙基三胺五乙酸（DTPA）萃取的Cd，Ni，Cr，Zn，Cu和Pb的比例。此外，麦饭石和伊利石/蒙脱石粘土处理分别使DTPA可萃取的Cd含量降低了35.4％和7.0％，这也显着降低了Cd，Ni，Cr，Zn，Cu和Pb的吸收。在芸苔，北京芸苔和菠菜菠菜的可食部位。从数量上讲，麦饭石处理减少了B. rapa ssp中金属的吸收。北京皮，樟树和油菜分别从11.6％到62.2％，4.6％到41.8％和11.3％到58.2％，而伊利石/蒙脱石粘土的产量减少了8.5％到62.8％和4.2％到37.6％。 B. rapa ssp的金属吸收。北京皮和野油菜。因此，麦饭石和伊利石/蒙脱石粘土都有望用于污染土壤的修复。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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