摘要
选取3个典型钢结构制造业企业为研究对象,以USEPA Method 18固定源标准采样方法为基础,对底涂工序、面涂工序和常温烘干工序无组织排放的挥发性有机物(volatile organic compounds,VOCs)进行采集,所采集的样品通过自动进样器进入预浓缩仪,预浓缩后在氦气推动下进入GC/MSD,进行VOCs浓度及组分特征的测定,并以此分析该行业VOCs的排放特征、臭氧生产潜势和二次有机气溶胶生成潜势。结果表明:底涂工序、面涂工序、常温烘干工序总挥发性有机物(total volatile organic compounds,TVOC)浓度分布区间分别为366. 99～1057. 05,355. 97～1048. 69,495. 04～1179. 70 mg/m3;该行业臭氧生成潜势为(4. 12±2. 61) g/g;二次有机气溶胶生成潜势为(2. 39±2. 00) g/g。
Three typical steel structure manufacturing enterprises were selected as the research objects, and the fixed-source standard sampling method-USEPA Method 18 was taken as the basis to collect volatile organic compounds (VOCs) samples of unorganized emission from primer painting, finishing painting, and room-temperature drying processes.The collected samples entered the pre-concentrator through automatic sample injector, and then entered GC/MSD after pre-concentration with helium as the carrier gas to determine the concentration and the component characteristics of VOCs, and by which the emission characteristics of VOCs, ozone formation potential (OFP) as well as the secondary organic aerosol (SOA) formation potential were analyzed.The results indicated that: the concentration of total volatile organic compounds (TVOCs) from primer painting, finishing painting and room-temperature drying processes were 366.99~1057.05 mg/m 3, 355.97~1048.69 mg/m^3, and 495.04~1179.70 mg/m^3, respectively;the ozone formation potential of steel structure manufacturing industry turned out to be (4.12±2.61) g/g;while the SOA potential formation was (2.39±2.00) g/g.
作者
王通
于宏兵
张艳芳
王倩
张茜
窦德星
金玉生
王迪
WANG Tong;YU Hong-bing;ZHANG Yan-fang;WANG Qian;ZHANG Xi;DOU De-xing;JIN Yu-sheng;WANG Di(College of Environmental Science and Engineering, Nankai University,Tianjin 300350,China;Tangshan Hengtong Technology Co., Ltd, Tangshan 063000, China;Chinese Research Academy of Environmental Sciences,Beijing 100020, China)
出处
《环境工程》
CAS
CSCD
北大核心
2019年第5期173-177,共5页
Environmental Engineering
基金
河北省省级省校科技合作开发资金"大气VOCs处理技术与研发制作项目"
国家研发计划大气污染成因与控制技术研究项目(2016YFC0209301)
天津市科技重大专项与工程"烧结工序节能
低硫
低氮清洁技术与示范"(15ZXGTSF00020)
关键词
钢结构制造业
挥发性有机物
排放特征
臭氧生成潜势
二次有机气溶胶
steel structure manufacturing industry
volatile organic compounds
characteristics of emission
ozone formation potential
secondary organic aerosol
