Pollution characteristics of volatile organic compounds, polycyclic aromatic hydrocarbons and phthalate esters emitted from plastic wastes recycling granulation plants in Xingtan Town, South China
Pollution characteristics of volatile organic compounds, polycyclic aromatic hydrocarbons and phthalate esters emitted from plastic wastes recycling granulation plants in Xingtan Town, South China
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华南杏坛镇塑料废弃物回收造粒厂挥发性有机物、多环芳烃和邻苯二甲酸酯排放污染特征
DOI：
10.1016/j.atmosenv.2013.02.011
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发表时间：
2013-06-01
影响因子：
5
通讯作者：
Tao, Liang
中科院分区：
文献类型：
--
作者：
Huang, De-Yin;Zhou, Shun-Gui;Tao, Liang
为了解我国最大的废塑料回收集散地杏坛镇废塑料回收造粒厂排放废气的主要污染特征，主要对挥发性有机物（VOCs）、多环芳烃（PAHs）和邻苯二甲酸酯（PAEs）进行分析。厂内外挥发性单环芳烃(MAHs)、PAHs和PAEs总浓度分别为2000～3000μg·m(-3)、450～1200ng·m(-3)、200～1200ng·m(-3)。 PAHs和PAEs在植物体内的浓度高于植物外，且PAHs和PAEs主要分布在气相中。值得注意的是，剧毒的苯并[a]芘（BaP）可以在植物内部检测到，有害的PAE不仅可以在植物内部而且可以在植物外部检测到，尽管PAE是非挥发性的。废气成分和浓度与塑料原料和造粒温度有关。 (C) 2013 Elsevier Ltd. 保留所有权利。
With the aim to investigate the main pollution characteristics of exhaust gases emitted from plastic waste recycling granulation plants, mainly volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs) and phthalate esters (PAEs) were analyzed in Xingtan Town, the largest distribution center of plastic waste recycling in China. Both inside and outside the plants, the total concentrations of volatile monocyclic aromatic hydrocarbons (MAHs), PAHs and PAEs ranged from 2000 to 3000 mu g m(-3), 450 to 1200 ng m(-3), and 200 to 1200 ng m(-3), respectively. Their concentration levels inside the plants were higher than those outside the plants, and PAHs and PAEs were mainly distributed in the gas-phase. Notably, highly toxic benzo[a]pyrene (BaP) could be detected inside the plants, and harmful PAEs could be detected not only inside but also outside the plants, although PAEs are non-volatile. The exhaust gas composition and concentration were related to the plastic feedstock and granulation temperature. (C) 2013 Elsevier Ltd. All rights reserved.