超稠油电脱盐污水中有机污染物的微观组成研究

利用傅里叶变换离子回旋共振质谱(FT-ICR MS)与气相色谱—质谱(GC-MS),对超稠油电脱盐污水中有机污染物微观组成进行了研究,结果表明,生物难降解以及具有生物毒性的有机污染物在超稠油电脱盐污水中大量存在,强极性有机污染物数量达到6 000以上,以O x与Na O x两种类型为主,并含有一定浓度有机S/N化合物,分子中普遍带有苯环结构。超稠油电脱盐污水的预处理应满足削减有机负荷、降低生物毒性以及提高可生化性三方面要求。

Fourier Transform Ion Cyclotron Resonance Mass Spectrometry （FT-ICR-MS） coupled with Gas Chromatography Mass Spectrometry （GC-MS） was performed to analyze the contaminant compositions of effluent from super heavy oil electric desalter. The organic contaminants with strong bio-toxicity and poor biodegradability existed in the effluent from super heavy oil electric desaher. The number of polar organic contaminants was beyond 6 000 and the main classes were Ox and NaO-. Organic sulfur and organic nitrogen contaminants also existed with relatively high concentration. The benzene ring structure was commonly existed in the molecules of polar organic contaminants. The pretreatment for the effluent from super heavy oil electric desalter should meet the requirements of reduction of organic load reduction, bio-toxicity decrease and biodegradability improvement.