粉煤灰基沸石吸附废液中氨氮化物与铜离子的试验研究  

Experimental Study on Adsorption of Ammonia Nitride and Copper Ions in Wastewater by Fly Ash-Based Zeolite

作　　者：鲍慧敏[1] BAO Huimin(Changzhi Vocational and Technical College,Changzhi 046000,Shanxi,China)

机构地区：[1]长治职业技术学院,山西长治046000

出　　处：《矿冶工程》2024年第4期253-258,共6页Mining and Metallurgical Engineering

摘　　要：开展了粉煤灰基沸石吸附电镀废液中氮氧化物和铜离子的试验研究。结果表明:粉煤灰基沸石吸附铜离子的适宜条件为:pH值8,溶液中铜离子初始质量浓度200 mg/L,吸附时间0.45 h,温度200℃;粉煤灰基沸石吸附氨氮化物的适宜条件为:粉煤灰基沸石投入量8 g/L,pH值8,吸附时间0.60 h,溶液中氨氮化物初始质量浓度150 mg/L;粉煤灰基沸石吸附铜离子的吸附过程为物理吸附过程,粉煤灰基沸石对氨氮化物的吸附是离子交换和物理吸附共同作用的结果。An experimental study was carried out for adsorption of ammonia nitride and copper ions in electroplating wastewater by fly ash-based zeolite.Results show that the proper conditions for adsorption of copper ions by fly ash-based zeolite include pH of 8,initial mass concentration of 200 mg/L for copper ions in the solution,adsorption time of 0.45 h,and temperature of 200℃;the proper conditions for adsorption of ammonia nitride by fly ash-based zeolite include addition of 8 g/L fly ash-based zeolite,pH of 8,adsorption time of 0.60 h,and initial mass concentration of 150 mg/L for ammonia nitride in the solution.It is found that the adsorption of copper ions by fly ash-based zeolites is a physical adsorption process,and the adsorption of ammonia nitride by fly ash-based zeolites is a combination of ion exchange and physical adsorption.

关 键 词：粉煤灰 沸石 电镀废液 氨氮化物 铜离子 吸附剂 物理吸附 

分 类 号：X703[环境科学与工程—环境工程]