VOC Emission Characteristics of the Glass Deep-Processing Industry in China

作者：Fan Zhang, Mingya Wang, Mingya Wang, Mingshi Wang, Mingshi Wang, Chun Chen, Xiyue Wang, Xiaojun Nie, Wenju Wang, Qinqing Xiong, Chunhui Zhang, Penghao Li, Yidong Wang, Xuechun Zhang · 发表于：Atmosphere · 年份：2023 · DOI：10.3390/atmos14010179 · 被引用次数：3 · 研究领域：Atmospheric chemistry and aerosols、Vehicle emissions and performance、Air Quality and Health Impacts

To understand the pollution characteristics of volatile organic compounds (VOCs) in the glass deep-processing industry, samples were collected using polyvinyl fluoride bags and quickly transferred to summa tanks for GC/MS/FID analysis. The emission characteristics of VOCs, the ozone formation potential and the secondary aerosol formation potential were studied. The results showed that the VOCs emitted by the six enterprises were mainly aromatics and OVOCs, accounting for 35% to 97% of the emissions, with high emission loads of alkanes and halocarbons from individual enterprises. The stack emissions from Enterprise 2 were as high as 38 mg/m3, while the emissions from the remaining five enterprises were all in the range of 1.7~4.1 mg/m3, probably because the terminal treatment facilities were not updated in a timely manner, resulting in excessive stack emissions from Enterprise 2. The characteristic pollutants, including OVOCs, aromatics and alkanes, which are mainly derived from spray painting and gluing, were screened in the six enterprises. Aromatics and OVOCs contributed the most to the ozone formation potential in the six enterprises, with some enterprises having a high contribution from alkanes and alkenes. On the basis of the secondary aerosol formation potential, toluene, benzene, ethylbenzene, o-xylene and m/p-xylene account for 98% of the six enterprises’ emissions. Glass enterprises should prioritise the control of benzene and OVOCs emissions. The glass processing in...