| 废旧有机玻璃再生利用行业挥发性有机物(VOCs)排放特征研究 |
| 摘要点击 2189 全文点击 1507 投稿时间：2013-01-09 修订日期：2013-03-06 |
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| 中文关键词 废旧有机玻璃再生利用 挥发性有机物 甲基丙烯酸甲酯 臭气浓度 排放特征 甲醇 |
| 英文关键词 waste polymethyl methacrylate recycling industry volatile organic compounds (VOCs) methyl methacrylate (MMA) odor concentration source profile methanol |
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| 中文摘要 |
| 以浙江省湖州某镇的废旧有机玻璃裂解再生行业污染整治为例,通过选取4家具有代表性的废旧有机玻璃裂解再生企业,对其整治后排放的工艺废气和厂界空气中特征污染物浓度进行监测,分析其与国内外现有标准限值的符合性,并评估其厂界特征污染物产生的人体健康风险,为建立该行业地方污染物排放标准提供依据. 结果表明,废旧有机玻璃再生行业排放废气成分主要为甲醇和甲基丙烯酸甲酯,且后者存在超标的情况; 虽然厂界空气中的臭气浓度基本超过了现行的国家标准,但其特征污染物基本不会对人体健康产生较大的危害. 另外,根据现有企业的实际情况,以较先进治理技术为依据,并参考国内外相关标准的基础上,建议该行业地方标准中甲醇、甲基丙烯酸甲酯及臭气浓度指标现有/新建(无组织)限值分别为45/30(0.5) mg·m-3、30/25(0.5) mg·m-3及1000/800(20). |
| 英文摘要 |
| In the present study, the main source and characteristics of volatile organic compounds (VOCs) released from recycled waste polymethyl methacrylate (PMMA) in Zhejiang province was analyzed quantitatively and qualitatively. Based on those results, the internationally recognized evaluation model of health risk assessment was adopted in the preliminary assessment of the health risk of those VOCs. The results showed that methanol (MeOH) and methyl methacrylate (MMA) were the main pollutants. Emission from part of enterprises exceeded the national standards in MeOH and MMA, especially for fugitive emissions of odor concentration. Moreover, health risk value of fugitive emissions was very low and did not cause harm to human health. Additionally, to better accelerate industrial upgrading and environment pollution treatment, the emission limits of MeOH, MMA and odor concentration were suggested and the values of existing/new (fugitive emission) limitations were 45/30(0.5) mg·m-3, 30/25(0.5) mg·m-3, and 1000/800(20), respectively. |
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