摘要
多相催化臭氧化是一种新型的高级氧化技术,它大大提高了臭氧化的氧化效率.研究了金红石TiO2对臭氧化降解磺基水杨酸的影响.结果表明:金红石TiO2对臭氧化磺基水杨酸的效率提升不明显,但对于有机物的矿化效率有明显提高.相同条件处理20min,金红石TiO2催化臭氧化磺基水杨酸在COD的去除上要比单独臭氧化提高约15.6%.草酸的分析结果显示,加入金红石TiO2可以促进该类化合物的有效降解.该结果对臭氧化处理酸性含芳环类化合物废水有一定的实际意义.
Heterogeneous catalytic ozonation, which can geatly improve the oxidation efficiency of ozonation, is a new advanced oxidation process. The effect of rutile TiO2 on ozonation of sulfosalicylic acid was investigated. The results showed that rutile TiO2 had no negligible impact on the ozonation of sulfosalicylic acid but could improve the mineralization of ozonation. The futile TiO2 catalytic ozonation had higher COD （Chemical Oxygen Demand） removal rate by 15. 6% than ozonation alone did after a treatment of 20 min. The evolution of oxalic acid concentration indicated that adding rutile TiO2 could improve the removals of oxalic acid-like compounds, thus enhancing the removal rate of COD. The result shows a practical significance for the ozonation of the acidic wastewater which contains aromatic compounds.
出处
《浙江工业大学学报》
CAS
北大核心
2015年第6期591-594,共4页
Journal of Zhejiang University of Technology
基金
国家自然科学基金资助项目(21176225)
