零价铁协同厌氧微生物去除典型雌激素污染物的过程探索和机理研究

项目名称： 零价铁协同厌氧微生物去除典型雌激素污染物的过程探索和机理研究

项目编号： No.51308010

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 建筑科学

项目作者： 赵白航

作者单位： 北京工业大学

项目金额： 25万元

中文摘要： 雌激素污染物具有毒性高、难降解、易富集及痕量存在于水体的特征，这些污染物的去除已成为全球关注热点。排入水环境体系的雌激素被水体沉积层吸附，如其能在沉积层厌氧环境去除，则能避免在其水体环境紊乱或者受干扰的情况下成为雌激素污染物的新来源。因此，基于为水环境安全提供有效保障，本课题提出零价铁协同沉积层厌氧微生物去除典型雌激素E1、E2和EE2的研究，研究雌激素在沉积层厌氧生物系统的生物吸附和生物降解，探讨其生物降解中间产物，探讨零价铁在雌激素厌氧去除过程的协同作用，分析零价铁及其腐蚀产物(H2、Fe2+、Fe3+)对雌激素厌氧去除的作用，解析零价铁腐蚀过程与雌激素降解过程及生物组成和群落之间的关系。以期为沉积层厌氧微生物降解雌激素提供理论依据，为环境体系中雌激素的去除提供一定指导意义。

中文关键词： 雌激素；厌氧颗粒污泥；零价铁；动力学模型；

英文摘要： More and more attention has been paied on estrogen, owing to its high toxicity, low degradability, easily enrichment and trace concentration in water bodies. The estrogens in the water body from Wastewater Treatment Plant would be absorbed by water sediment. The estrogens accumulated in the sediment will become a future source of estrogens in the water whenever the system is disrupted. If the estrogen can be biodegraded by the anaerobic microorganism in the sediments, it will provide an insight into the water environment security and give it an effective safeguard. Therefore, the work will aim to establish an anaerobic bilogical system degrading typical estrogen (represented by E1, E2 and EE2) with zero-valent iron (ZVI), and research the absorption and biodegration of the estrogen in the system. The biodegration intermediate will be detected in the biodegration process of the estrogen. The effect of ZVI on the estrogen removal by anaerobic microorganism will be discussed here.The work will also expose the effect of the corrosion product (H2、Fe2+、Fe3+) of ZVI on the estrogen removal. Besides, the relation among the ZVI corrosion process, the estrogen degradation process and the biological community will be analyzed. It is expected that these work can provide a theoretical support for anaerobic degradation of est

英文关键词： Estrogen；Anaerobic granular sludge；Zero-valent iron；Dynamic model；