DETERMINATION OF ORGANIC POLLUTANTS IN PAPER MILL WASTEWATER WITH GC-MS
Gas chromatography-mass spectrometry (GC-MS) analytical method was employed for the determination of organic pollutants in recirculating water of a recycling paper mill. Water samples were first pre-treated by liquid-liquid extraction using methyl tert-butylether (MTBE), with heptadecanoic acid (C17) as the internal standard. They were then derivated by bis(trimethylsilyl)trifluoroacetamide (BSTFA) and trimethylchlorosilane (TMCS), with pyridine as the solvent, followed by GC-MS analysis for previous formation of the respective trimethylsilyl esters. Using this approach, 48 kinds of organic chemicals were identified in water samples. The resin acids mainly existed in pulping water. The fatty acids, aromatic acids and their ramifications mainly existed in white water and mixed water coming out of the mill. Comparatively, the mixed water contained the most kinds of organic chemicals, and the vacuum pumping water contained the least organic chemicals. Origins of the detected organics and infections which may play on the environment and human were discussed according to their molecule structures and chemical characteristics. Their contents in different process water samples were compared. The results may raise concerns on the organic chemicals in paper making process and environmental consequence of their release.
secondary fibre wastewater paper mill organic pollutant GC-MS
Li Cuicui Shen Wenhao Chen Xiaoquan Jiang Xi
State Key Laboratory of Pulp and Paper Engineering,South China University of Technology, Guangzhou,510640, China
国际会议
广州
英文
1195-1198
2010-11-08（万方平台首次上网日期，不代表论文的发表时间）