基于非金属中空球臭氧催化氧化协同光催化系统处理新污染物实验设计

Experimental design of new pollutants treatment based on non-metallic hollow sphere catalytic ozonation synergistic photocatalysis system

为强化学生对新污染物处理以及以废制废的环保意识,在双碳背景下,提出臭氧催化氧化协同光催化(COP)技术强化对新污染物的降解。以非金属原料氮化碳纳米管、改进的水热浒苔生物炭和改性硅藻土制备催化剂,得到生物炭基非金属中空多孔球负载CN(HSC-CN)材料,构建了非金属臭氧催化氧化协同光催化系统(HSC-CN/COP),基于臭氧催化氧化协同光催化的耦合效应,提高污染物降解效率。20min内对新污染物四环素(TC)和对硝基苯酚(PNP)的降解率分别可达90.1%和84.3%。对二级出水的良好处理效果也证明了其作为深度处理工艺的潜力。该实验旨在:促进学生对水处理工艺及新污染物的了解,培养学生以废治废、创新传统工艺的意识,加深学生对水处理专业知识的理解,提高学生解决复杂工程问题的能力。

In order to strengthen students’ awareness of environmental protection of new pollutants treatment and waste disposal, catalytic ozonation synergistic photocatalysis system(COP) technology is proposed to strengthen the degradation of new pollutants under the background of dual carbon. Biochar based non-metallic hollow porous sphere supported CN(HSC-CN) is prepared by using non-metallic carbon nanotubes, improved hydrothermal Enteromorphaprolifera biochar and modified diatomite. HSC-CN/COP system is constructed to improve the degradation efficiency of pollutants based on the coupling effect of COP. The degradation rates of new pollutants,tetracycline(TC) and p-nitrophenol(PNP) within 20 min are 90.1% and 84.3%, respectively. The good treatment effect of secondary effluent also proves its potential as advanced treatment process. The purpose of this experiment is to promote students’ understanding of water treatment process and new pollutants, cultivate students ’ awareness of waste treatment, innovate traditional processes, deepen students’ understanding of water treatment professional knowledge, and improve students’ ability to solve complex engineering problems.