低温等离子体耦合技术去除水中有机污染物的研究进展

Research advances of non-thermal plasma coupling technologies for the removal of aqueous organic pollutants

低温等离子体(NTP)技术通过产生活性物质(·OH、·O_(2)-、O_(3)等)和物化效应(紫外线、超声波、热辐射等)实现对水中有机污染物的有效去除,但仍存在污染物处理适用性的问题。将NTP技术与氧化剂、环境材料或微气泡耦合能够解决这一问题。因此,针对目前这些耦合技术进行了综述,总结了它们处理水中有机污染物的效果及其机制,进而展望了这些耦合技术在水处理领域研究和应用的发展趋势。

Non-thermal plasma(NTP)technology removes aqueous organic pollutants effectively by generating active species(·OH,·O_(2)-,O_(3),etc.)and physiochemical effects(UV irradiation,ultrasonic wave,thermal radiation,etc.).But it has the disadvantages of suitable limitation for various pollutants.Coupling oxidants,environmental materials or microbubbles with NTP technology can solve this problem.Therefore,this article reviewed these NTP coupling technologies,summarized their effects and mechanisms on treatment of aqueous organic pollutants,and then prospected the development trend of the technology in the field of water treatment research and application.