微波技术在污水处理中的研究进展和应用

Application and research progress of microwave technology in sewage treatment

微波技术因其独特的热效应和非热效应在水处理领域起着重要的作用。微波技术发展至今可分为4个方面:(1)微波直接辐射法处理污水;(2)微波场辅助活性炭处理污水;(3)微波与其他技术(光催化技术、金属催化剂等)联合应用处理污水;(4)微波辐照再生与制备催化剂。微波技术对各类污染物(如染料、氨氮废水、焦化废水和酚类、酸类和酯类等有机废水)的降解率影响显著。从降解效率的角度看,现代化微波工艺将朝着微波与高级氧化技术的联合应用方向发展,其联合反应机制和配套装置也有待做更多研究。

Due to the unique thermal and non-thermal effects of microwave technology,it plays a significant role in field of wastewater treatment. Microwave relevant technology applied in sewage treatment could be divided into the following four aspects： direct microwave radiation for sewage treatment; microwave field assisted activated carbon method ; microwave coupling with other techniques （such as photo-catalysis and metal catalysis technology）; micro- wave irradiation for catalyst preparation and regeneration. Microwave technology present perfect performance for dif- ferent types of wastewater treatment,including ammonia-nitrogen wastewater or dye, coking wastewater and organic wastewater. From the point view of the degradation efficiency, combining with advanced oxidation might be the domi- nating developing direction of the modern microwave technology, so it is still necessary for us to do more research on combination reaction mechanism and supporting devices.