催化氧化除锰活性滤料去除地下水中双酚A性能

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摘要以催化氧化除锰活性滤料（简称“活性滤料”）为研究对象，考察了地下水中锰污染对于活性滤料去除双酚A效能的影响.结果表明，进水中含有高浓度锰（5mg/L）时，会显著降低活性滤料对于双酚A的去除能力；同时，双酚A也会降低活性滤料对锰的去处能力.双酚A脱附实验结果表明，脱附的双酚A量不足双酚A去除总量的10%，且双酚A去除过程中初期总有机碳（TOC）去除率保持在12%~25%，之后持续保持在0.1%~4%，表明活性滤料去除双酚A存在吸附过程，但是以氧化去除为主.扫描电子显微镜（SEM）和X射线衍射（XRD）分析结果表明，双酚A的去除会导致滤料表面微观形态改变以及新物相的生成；傅里叶变换红外光谱（FTIR）结果表明双酚A的去除会消耗滤料表面羟基基团，且表面残留络合物.本文研究分析提出活性滤料去除双酚A的主要步骤包括双酚A首先吸附到活性滤料表面形成络合物、活性滤料与表面络合物发生氧化反应，部分反应物中间体脱附3个过程.

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	程亚
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	黄廷林

关键词 ：双酚A, 活性滤料, 除锰, 氧化, 地下水处理

Abstract：The effect of manganese pollution in groundwater on the removal efficiency of bisphenol A by the active filter material was investigated. When high concentration of manganese (5mg/L) was contained in the influent, the removal ability of bisphenol A by the active filter material was significantly decreased. At the same time, bisphenol A inhibited manganese removal of the active filter material. The desorption experiment results showed that the desorption amount of bisphenol A accounted for less than 10% of the total bisphenol A removal amount, and the removal rate of total organic carbon (TOC) at the initial stage was maintained at 12%~25%, and then remained at 0.1%~4%, indicating that the adsorption process existed in the removal of bisphenol A, but oxidation was the main removal process. Scanning electron microscope (SEM) and X-ray diffraction (XRD) analysis results showed that the bisphenol A removal would bring the change in microstructure and the formation of new phase. The results of Fourier transform infrared spectroscopy (FTIR) showed that the removal of bisphenol A would consume the hydroxyl groups on the surface of the filter material, resulting in the residual complex on the surface. Finally, three main steps for the removal of bisphenol A by active filter material were proposed, including the adsorption of bisphenol A onto the activated filter material surface to form complexes, the oxidation of bisphenol A via the reaction between the activated filter material and the surface complexes, and the desorption of some reactant intermediates. This study provides theoretical guidance for the application of active filter material in the prevention and controlling of organic pollutant risks in groundwater treatment.

Key words： bisphenol A active filter material manganese removal oxidation groundwater treatment

收稿日期: 2020-12-15

PACS:

X523

基金资助:国家自然科学基金资助项目（52000145，51778521）；国家重点研发计划项目（2019YFD1100101）；陕西省教育厅专项科研计划项目（19JS039）

通讯作者: 黄廷林,教授,huangtinglin@xauat.edu.cn E-mail: huangtinglin@xauat.edu.cn

作者简介: 程亚(1990-),女,山东济宁人,副教授,博士,主要研究方向为微污染水源水处理.发表论文10余篇.

引用本文:

程亚, 张永志, 姚萱, 熊卫耀, 黄廷林. 催化氧化除锰活性滤料去除地下水中双酚A性能[J]. 中国环境科学, 2021, 41(7): 3247-3254. CHENG Ya, ZHANG Yong-zhi, YAO Xuan, XIONG Wei-yao, HUANG Ting-lin. Study on the removal of bisphenol A from groundwater by active filter material with manganese removal ability by catalytic oxidation. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(7): 3247-3254.

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http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2021/V41/I7/3247

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