Abstract:GDX-502 sampling tubes, two-stage thermal desorption and gas chromatography coupled with mass spectrometry were used to investigate the composition and the content of malodor volatile organic compounds(MVOC) emitted from different processing units and the ambient sites of a typical municipal sewage treatment plant in Guangzhou. The molecular markers, atmospheric chemical reactivity, source profiles were studied. The results show that 40 volatile organic compounds (VOCs) were detected in the plant and were composed of alkanes, halogenated hydrocarbons, alkenes, aromatic hydrocarbon, OVOC and mercaptans. 34 MVOC species were detected, accounting for more than 95% of the total VOCs in each processing units. Benzenes, 2-Butanone, ethyl acetate, butyl acetate and dimethyl sulfide were found to be the MVOC molecular markers of the plant, while benzenes were the dominant components with the contribution of 75.89% to the measured MVOC. A strong correlation was found between the reconciliated source profile and the measured MVOC composition at the ambient receptor site.
唐小东, 王伯光, 赵德骏, 刘舒乐, 何洁, 冯志诚. 城市污水处理厂的挥发性恶臭有机物组成及来源[J]. 中国环境科学, 2011, 31(4): 576-583.
TANG Xiao-Dong, WANG Bo-Guang, ZHAO De-Jun, LIU Shu-Le, HE Jie, FENG Zhi-Cheng. Sources and components of MVOC from a municipal sewage treatment plant in Guangzhou. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(4): 576-583.