...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemosphere >Reduction of PCDDs/PCDFs in MSWI fly ash using microwave peroxide oxidation in H_2SO_4/HNO_3 solution
【24h】

Reduction of PCDDs/PCDFs in MSWI fly ash using microwave peroxide oxidation in H_2SO_4/HNO_3 solution

机译：在H_2SO_4 / HNO_3溶液中使用微波过氧化物氧化还原MSWI粉煤灰中的PCDD / PCDF

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

Microwave peroxide oxidation (MPO) is an energy-efficient and low GHG emission technology to destroy the hazardous organic compounds in solid waste. The objective of this paper is to explore the reduction feasibility of PCDDs/Fs in MSWI fly ash using the MPO in H_2SO_4/HNO_3 solution. Nearly all PCDDs/Fs, 99% in the original fly ash, can be reduced in 120 min at the temperature of 150 ℃ using the MPO treatment. It was also found that a change occurred in the content distribution profiles of 17 major PCDD/F congeners before and after MPO treatment. This provides the potential to reduce the actual PCDDs/Fs content more than I-TEQ contents of PCDDs/Fs. The percentile distribution profile has a tendency of higher chlorinated PCDDs/Fs moving to the lower ones. It concludes that a significant reduction efficiency of 1-TEQ. toxicity was achieved and showed sufficient reduction of toxic level to lower than l.0 ng I-TEQ(g dw)~(-1). The treatment temperature would be a critical factor facilitating the dissolution because higher temperature leads more inorganic salt (parts of fly ash) dissolution. Some problems caused by the MPO method are also delineated in this paper.
机译：微波过氧化物氧化（MPO）是一种节能，低温室气体排放的技术，可以消除固体废物中的有害有机化合物。本文的目的是探索使用H_2SO_4 / HNO_3解决方案中的MPO减少MSWI粉煤灰中PCDDs / Fs的可行性。使用MPO处理后，几乎所有PCDD / Fs（原始粉煤灰中的99％）都可以在150℃的温度下在120分钟内还原。还发现在MPO处理之前和之后，17种主要PCDD / F同系物的含量分布曲线发生了变化。这提供了比PCDD / F的I-TEQ内容更多地减少实际PCDD / F的潜力。百分位数分布曲线具有较高的氯化PCDD / F向较低的趋势。结论是1-TEQ的显着降低效率。达到了毒性并显示出足够的毒性降低，使其低于1.0 ng I-TEQ（g dw）〜（-1）。处理温度将是促进溶解的关键因素，因为更高的温度会导致更多的无机盐（部分飞灰）溶解。本文还描述了由MPO方法引起的一些问题。

著录项

  • 来源
    《Chemosphere》 |2013年第6期|864-868|共5页
  • 作者

    Yu-Min Chang; Wen-Chien Dai; Kao-Shen Tsai; Shiao-Shing Chen; Jyh-Herng Chen; Jimmy C.M. Kao;

  • 作者单位

    Institute of Environmental Engineering and Management, National Taipei University of Technology. Taiwan, ROC;

    Institute of Environmental Engineering and Management, National Taipei University of Technology. Taiwan, ROC;

    Institute of Environmental Engineering and Management, National Taipei University of Technology. Taiwan, ROC;

    Institute of Environmental Engineering and Management, National Taipei University of Technology. Taiwan, ROC;

    Institute of Environmental Engineering and Management, National Taipei University of Technology. Taiwan, ROC;

    Institute of Environmental Engineering, National Sun Yat-Sen University, Kaushiung, Taiwan, ROC;

  • 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

    PCDDs/PCDFs; microwave peroxide oxidation; fly ash; MSW;

    机译：PCDD / PCDF;微波过氧化物氧化;粉煤灰城市生活垃圾;

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