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环境化学  2015 

DOI:10.7524/j.issn.0254-6108.2014.10.014

Keywords: 二噁英,形成机理,影响因素,阻滞,减排

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Abstract:

铁矿石烧结是我国重要的二噁英类(PCDD/Fs)排放源之一.本文总结了烧结过程PCDD/Fs的生成机制,以及典型烧结烟气的PCDD/Fs排放特征.针对影响PCDD/Fs生成的关键因素进行了分析,探讨了原料组成中关键元素的影响,以及温度、时间和氧气含量等条件的影响,进而对PCDD/Fs的减排技术等方面进行了讨论.最后本文还对部分发达国家和我国的铁矿石烧结行业PCDD/Fs排放现状进行了分析和展望.可为我国铁矿石烧结行业PCDD/Fs的管理和减排提供参考.

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