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首页> 外文会议>Recycling of electronic waste II >LEACHING TOXICITY OF PB AND BA CONTAINING IN CATHODE RAY TUBE GLASSES BY SEP-TCLP
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LEACHING TOXICITY OF PB AND BA CONTAINING IN CATHODE RAY TUBE GLASSES BY SEP-TCLP

机译：SEP-TCLP法测定阴极射线管玻璃中PB和BA的浸出毒性

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摘要

In the present study, different types of cathode ray tube (CRT) glasses were examined by sequential extraction combined with TCLP to provide possible explanations for how Pb and Ba leach out from the waste CRT glasses and to give possible reasons for why they leach out. Sequential extraction results showed that Pb and Ba in the CRT glasses dominantly presented as the residual fraction. The exchangeable fractions of Pb and Ba were extremely low, less than 0.01 % of the total content, but they were higher than those required by the regulation limits, 5 and 100 mg/L for Pb and Ba, respectively. TCLP tests of the original CRT glasses and CRT glasses residues after each step of sequential extraction demonstrated that the extremely high leaching toxicity of CRT glasses mainly caused by its exchangeable and carbonate fractions of Pb and Ba.
机译：在本研究中，通过顺序萃取结合TCLP检验了不同类型的阴极射线管（CRT）玻璃，从而为铅和钡如何从废CRT玻璃中浸出提供了可能的解释，并提供了它们为什么浸出的可能原因。连续萃取结果表明，CRT玻璃中的Pb和Ba占主要部分。 Pb和Ba的可交换部分极低，不到总含量的0.01％，但高于法规极限所要求的值，Pb和Ba分别为5和100 mg / L。原始CRT玻璃和CRT玻璃残留物的TCLP测试在连续萃取的每个步骤之后证明，CRT玻璃的极高浸出毒性主要是由Pb和Ba的可交换部分和碳酸盐部分引起的。

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  • 来源
    《Recycling of electronic waste II》|2011年|p.109-113|共5页
  • 会议地点 San Diego CA(US);San Diego CA(US)
  • 作者

    Mengjun Chen; Fu-Shen Zhang; Jianxin Zhu;

  • 作者单位

    Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang 621010, China ,Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, China;

    Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, China;

    Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 废物处理与综合利用;
  • 关键词

    e-waste; CRT glasses; sequential extraction; leaching toxicity;

    机译：电子垃圾CRT眼镜；顺序提取；浸出毒性;

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