摘要
参考USEPATO-14A/15方法,选择天津市滨海新区内的6个不同类型的工业源,包括制药、自行车制造、炼油、石化、树脂合成和橡胶,对各类源工艺流程中有组织排放源排放的挥发性有机物(VOCs)进行定量分析,得到了源成分谱;并将各类源排放的恶臭物质浓度与嗅觉阈值进行对比,对其引发恶臭污染的潜在能力做出评价.结果显示,上述各类排放源的生产工艺中的VOCs总浓度分别为16.8,115.3,204.6,225.3,10.9,191.7mg/m3.根据源成分谱分析结果,制药源和自行车喷漆车间的排气中甲苯比例分别为79.1%和94%;石化企业源中总二甲苯比例超过60%;橡胶企业脱硫工序,排放以硫化物为主;树脂合成工业,主要原料苯乙烯在排气中检出比例达51.8%;炼油源排气成分复杂,以卤代烃和硫化物为主.同时各类工业源均存在一定的恶臭污染,橡胶、炼油源的硫化物污染,树脂合成工业源的苯乙烯污染,石油化工源的混合污染,都应引起足够的重视.
Volatile organic compound （VOC） samples were collected from six industrial sources including pharmacy, bike manufacturing, oil refinery, petrochemical, resin synthesis and rubber manufacturing. The samples were preconcentrated on a cold trap and then analyzed by gas chromatography （GC） and mass spectrometry detection （MS） adopting USEPA TO-14A/15 method. VOCs concentrations and profiles were developed after analysis. Concentrations of above six sources were 16.8, 115.3,204.6, 225.3, 10.9, 191.7mg/m3, respectively. According to the source profiles, toluene was the most abundant component in both profiles of pharmacy source and bike manufacturing source, with abundance of 79.1% and 94% respectively. Petrochemical source was characterized by high o,m,p-xylene （more than 60%）. Rubber manufacturing source exhibited the highest percentage of sulfur compounds among all sources. High level of styrene was found in the resin synthesis source, whereas oil refinery source was dominated by halocarbon. Thus, more attention should be paid to these sources for its odor pollution potential.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2011年第11期1776-1781,共6页
China Environmental Science
基金
天津市科技支撑重点项目(09ZCGYSF02400)
关键词
挥发性有机物
恶臭
工业源
天津
volatile organic compounds （VOCs）
odor
industrial sources
Tianjin
