典型内分泌干扰物双酚A废水处理研究进展

Progress in the treatment technologies toward endocrine disrupter bisphenol A

双酚A是一种典型的内分泌干扰物,环境暴露量逐渐升高;其分子结构稳定,不易降解,且具有一定的毒性,对生态环境安全和哺乳动物健康造成威胁,因此发展高效、绿色且经济的双酚A处理技术已成为一个研究重点.本文简单介绍了环境中双酚A的来源与危害,综述了近期国内外处理双酚A废水的技术方法,着重论述了吸附法、膜技术、生物法、臭氧氧化法、光催化氧化法、电催化氧化法及过硫酸盐氧化法、等离子体降解法在双酚A废水处理方面的反应机制和技术优缺点,分析了相关技术目前所取得的研究进展.总体而言,目前这些单一的处理技术在矿化效率、催化剂合成、二次污染控制和处理成本等问题上难以兼顾,因此我们建议可采用多种技术联合实施的处理方案,以满足不同应用场景下对含双酚A废水的高效、安全降解.

Bisphenol A(BPA),a typical endocrine disruptor chemical,features the high environmental exposure,the strong persistence to natural degradation and the large health risk to the human and mammals.How to remove BPA from water in an efficient and economical way has,therefore,been receiving increasing research interests.This paper briefly introduces the harmfulness and origin of BPA,and then summarizes the recent progress achieved in the development of the technologies for treatment of BPA-contaminated wastewater,including adsorption,membrane filtration,biological,photo-/electrocatalytic oxidation,persulfate-mediated oxidation and plasma-triggered degradation.Specifically,the removal mechanism as well as the merits/demerits of each technology are discussed.Finally,we propose a joint implementation of the above technologies for practical application,considering that the performance of the single technology is unsatisfied in the aspect of mineralization efficiency,catalyst synthesis,secondary pollution control or treatment cost.