摘要
利用紫外光激活掺杂银离子的光催化剂二氧化钛处理氨氮废水,研究不同反应时间和不同质量硝酸银、二氧化钛条件下降解氨氮的效果,比较氨氮降解率与反应时间和催化剂质量的关系。在实验过程中,保持氨氮废水初始质量浓度为40.30 mg/L,不同质量反应物光照反应1.0 h左右时降解率基本达到饱和;当TiO_(2)和AgNO_(3)分别为1 500 mg和30 mg时,氨氮的降解率最佳。
The ammonia nitrogen wastewater was treated by the silver ion doped photocatalyst TiO_(2) activated by UV.The effects on the degradation of ammonia nitrogen were studied under different reaction time and different mass concentration of Ag NO3 and TiO_(2).The relationship between the degradation rate of ammonia nitrogen and reaction time and catalyst’s mass was compared.During the experiment,the initial mass concentration of ammonia nitrogen wastewater was maintained at 40.30 mg/L,and the degradation rate basically reached saturation when the reactants with different mass reacted with light for about 1.0 h;When TiO_(2) and Ag NO3 were 1 500 mg and 30 mg respectively,the degradation rate of ammonia nitrogen was the best.
作者
黄海威
刘世泳
梁斌昊
梁剑清
林洁丽
Huang Haiwei;Liu Shiyong;Liang Binhao;Liang Jianqing;Lin Jieli(Chemical Engineering Department,Foshan University,Foshan 528000,China)
出处
《现代盐化工》
2021年第5期41-42,共2页
Modern Salt and Chemical Industry
关键词
光催化剂
二氧化钛
氨氮废水
photocatalyst
titanium dioxide
ammonia nitrogen wastewater
作者简介
黄海威(1999-),男,广东珠海人,本科生,研究方向:化学工程与工艺;通信作者:林洁丽(1974-),女,广西陆川人,副教授,博士,研究方向:物理化学技术在环保领域中的应用。
