Development of New Degradation Methods of Strongly Persistent organic Pollutants like Perfluorocompounds in Water and Sludge Treatment System

全氟化合物（pfc）的检测，如全氟辛烷磺酸（PFOS）和全氟辛酸（PFOA），特别是在水环境中，由于这些化合物的持久性和毒性特性，引起了人们的严重关切。作为本研究的第一步，建立了一种同时定量不同类型PFCs的LC/MS/MS方法，并对水和固体样品进行了适当的预处理。低压反渗透膜几乎可以将全氟辛烷磺酸和全氟辛酸分离。此外，组合波长（185 nm+254 nm）的紫外光解能有效降解PFOA。此外，铂电极电解法对全氟辛烷磺酸和全氟辛烷磺酸的降解效果非常好。采用温度大于600℃的间接热解吸技术，可有效去除固相中的PFOS和PFOA等几种pfc。CHO细胞MN试验和HepG2细胞MTT试验结果表明，PFOS对细胞有毒性作用，导致脂质代谢紊乱。

Detection of perfluorocompounds (PFCs) such as PFOS (perfluorooctane sulfonate) and PFOA (perfluorooctanoic acid) particularly in water environment has raised serious concerns among people due to persistent and toxic characteristics of the compounds. As the first step in this investigation, a LC/MS/MS method for simultaneous quantification of different types of PFCs with appropriate pretreatments for water and solid samples was developed. PFOS and PFOA were almost separated by Low Pressure Reverse Osmosis Membrane. In addition, PFOA was effectively degraded by UV photolysis with combined wavelengths (i.e. 185 nm+254 nm). Moreover, both PFOA and PFOS were very effectively degraded with electrolytic methods using platinum electrodes. Several PFCs including PFOS and PFOA in solid phase were effectively eliminated by indirect thermal desorption technique with temperature more than 600 oC. Test results on MN assay with CHO cells and MTT assay with HepG2 cells suggested PFOS toxicity to the cells resulting in lipid metabolism disorder.