激光制造Janus铝箔在污水处理中的应用  

Using Laser Bionic Technology Makes Janus Aluminum Foil and The Applying of Sewage Treatment

作　　者：姚燕生 胡郁 唐建平 张勇 Yao Yansheng;Hu Yu;Tang Jianping;Zhang Yong(Mechanical&Electrical Engineering College,Anhui Jianzhu University,Hefei 23060l,Anhui,China;Key Laboratory of Intelligent Manufacturing of Construction Machinery,Hefei 23060l,Anhui,China;Environmental&Energy Engineering College,Anhui Jianzhu University,Hefei 23060l,Anhui,China)

机构地区：[1]安徽建筑大学机械与电气工程学院,安徽合肥230601 [2]安徽省工程机械智能制造重点实验室,安徽合肥230601 [3]安徽建筑大学环境与能源工程学院,安徽合肥230601

出　　处：《应用激光》2023年第9期108-113,共6页Applied Laser

基　　金：安徽省自然科学基金面上项目(1908085ME130);国家“十二五”水体污染控制与治理科技重大专项(2014ZX07303-003-09);安徽省高校自然科学基金重点项目(KJ2019A0791)。

摘　　要：通过改变表面润湿性来提高传统微孔曝气器的曝气效率,对提高污水处理效率具有重要意义。利用激光仿生制造技术制得两侧具有非对称润湿性的Janus铝箔,将Janus铝箔应用到自制曝气器中,用于产生均匀的超细气泡来进行高性能曝气,加快好氧生物膜中的硝化菌对氨氮的分解效率,从而提高废水处理的效率。研究表明,使用Janus铝箔曝气器对氨氮分解速率近乎是双面超疏水铝箔的3倍。这种简单、低成本的激光制造Janus铝箔的方法在提高污水处理过程的氧气传质和能源效率方面显示出巨大的潜力。Improving the aeration efficiency of traditional microporous aerator by changing the surface wettability is of great significance to improve the efficiency of sewage treatment.In this paper,Janus aluminum foil with asymmetric wettability on both sides is prepared by laser bionic manufacturing technology.Janus aluminum foil is applied to the self-made aerator to produce uniform ultra-fine bubbles for high-performance aeration,so as to speed up the decomposition efficiency of ammonia nitrogen by nitrifying bacteria in aerobic biofilm and improve the efficiency of wastewater treatment.The results show that the decomposition rate of ammonia nitrogen using Janus aluminum foil aerator is nearly three times that of double-sided superhydrophobic aluminum foil.This simple and low-cost method of laser manufacturing Janus aluminum foil shows great potential in improving oxygen mass transfer and energy efficiency in sewage treatment process.

关 键 词：激光制造 Janus铝箔 氧传质 氨氮去除效率 

分 类 号：X52[环境科学与工程—环境工程]