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.

全氟辛烷磺酸（PFOS）和全氟辛酸（PFOA）等全氟化合物（PFCs）的持久性和毒性，引起了人们的严重关注。作为这项调查的第一步，LC/MS/MS方法，同时定量不同类型的PFCs与适当的水和固体样品的预处理开发。低压反渗透膜对PFOS和PFOA的分离效果较好。此外，全氟辛酸通过组合波长（即185 nm+254 nm）的紫外光分解可有效降解。此外，使用铂电极的电解法可非常有效地降解全氟辛酸和全氟辛烷磺酸。在600 oC以上的温度下，间接热脱附技术可以有效去除固相中的PFOS和PFOA。CHO细胞MN试验和HepG 2细胞MTT试验结果表明，PFOS对细胞具有毒性，导致脂质代谢紊乱。

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.

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

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

A novel use of TiO_2 fiber for Photocatalytic ozonation of 2, 4- dichlorophenoxyyacetic acid in aqueous solution

TiO_2纤维在水溶液中光催化臭氧化2,4-二氯苯氧基乙酸的新用途

• 发表时间: 2008
• 期刊: Journal of Environmental Sciences Vol. 20
• 作者: R. R. Giri;ら
• 通讯作者: ら

電気化学的処理法におけるペルフルオロスルホン酸類の除去

电化学处理法去除全氟磺酸

• 发表时间: 2011
• 作者: 橋口亜由未;ら
• 通讯作者: ら