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

水和污泥处理系统中全氟化合物等强持久性有机污染物降解新方法的开发

• 批准号: 20241021
• 负责人: OZAKI Hiroaki
• 金额: $ 25.63万
• 依托单位: Osaka Sangyo University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-20241021/
• 关键词: 環境保全技術; 難分解性物質; 有機フッ素化合物; 合成抗菌剤; バイオアッセイ; PFOA; PFOS; 強難分解性物質; 電気分解; 間接熱脱着; LC/MS/MS; 間接熱脱着法; LC; MS

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.

由于化合物的持续性和有毒特征，在水环境中，尤其是PFOS（PFC）的检测（PFC），例如PFOS（PFOS）和PFOA（PFOA）和PFOA（PFOA）（perluorooctanoic Acid）。作为这项研究的第一步，开发了用于同时定量不同类型的PFC的LC/MS/MS方法，并开发了适当的水和固体样品预处理。 PFO和PFOA几乎通过低压反渗透膜分离。另外，通过与合并波长（即185 nm+254 nm），紫外光解会有效地降解PFOA。此外，使用铂电极的电解方法，PFOA和PFO都非常有效地降解。通过温度超过600 OC的间接热解吸技术有效消除了几种PFC，包括固体相位的PFO和PFOA在固相中有效消除。用CHO细胞和HEPG2细胞MTT测定的MN测定结果的测试结果表明，PFOS对细胞的毒性导致了脂质代谢障碍。

项目成果

UV photolysis of perfluorooctanoic acid (PFOA) in dilute aqueous solution

• DOI: 10.2166/wst.2011.050
• 发表时间: 2011-01-01
• 期刊: WATER SCIENCE AND TECHNOLOGY
• 影响因子: 2.7
• 作者: Giri, R. R.;Ozaki, H.;Takanami, R.
• 通讯作者: Takanami, R.

低圧逆浸透膜による水中の有機フッ素化合物の分離について

使用低压反渗透膜分离水中的有机氟化合物

• 发表时间: 2010
• 作者: 陳霞明;ら
• 通讯作者: ら

Effect of Perfluorooctane sulfonate(PFOS)on genotoxicity of micropollutants in micronucleus assay

微核测定中全氟辛烷磺酸(PFOS)对微污染物遗传毒性的影响

• 发表时间: 2009
• 作者: M.Ozaki;ら
• 通讯作者: ら

Photochemical Oxidation of Pharmaceuticals and Personal Care Products(PPCPs)in Mixed Aqueous Solution Using Low Pressure UV Irradiation and Hydrogen Peroxide

使用低压紫外线照射和过氧化氢对混合水溶液中的药品和个人护理产品 (PPCP) 进行光化学氧化

• 发表时间: 2009
• 作者: R.R.Giri;ら
• 通讯作者: ら

Rejection of Pharmaceuticals and Personal Care Products (PPCPs) and Endocrine Disrupting Chemicals (EDCs) by Low Pressure Reverse Osmosis Membanes

通过低压反渗透膜去除药品和个人护理产品 (PPCP) 以及内分泌干扰化学品 (EDC)

• 发表时间: 2008
• 期刊: Water Science & Technology Vol. 58
• 作者: H. Ozaki;ら
• 通讯作者: ら