铝改性活性炭去除水中氟离子效果研究  

Reduction of fluoride from water by aluminium modified activated carbon

作　　者：许俊超 林奕龙 吴春山 郑育毅[1,2,3,4] XU Junchao;LIN Yilong;WU Chunshan;ZHENG Yuyi(College of Environmental and Resource Sciences and College of Carbon Neutral Modern Industry;Institute of Environmental Science,Fujian Normal University;Fujian College and University Engineering Research Center for Municipal(Solid)Waste Resourceization and Management;Key Laboratory of Resource Cycleand Pollution Control of Fujian Province;Fuzhou Research Institute of Environmental Sciences,Fuzhou 350000,China)

机构地区：[1]环境与资源学院、碳中和现代产业学院 [2]福建师范大学环境科学研究所 [3]城市废物资源化技术与管理福建省高校工程研究中心 [4]福建省污染控制与资源循环利用重点实验室 [5]福州市环境科学研究院,福建福州350000

出　　处：《化学工程与装备》2023年第2期4-7,共4页Chemical Engineering & Equipment

基　　金：福建省科技厅对外合作项目(2021I0010);福建省科技厅计划项目(2020N5015)。

摘　　要：制备铝改性活性炭,并用于去除水中的氟离子。结果表明,铝改性活性炭的最佳烧制温度为500℃;在25℃,F-初始浓度为10mg/L时,其最佳的除氟条件为:投加量4g/L、吸附时间120min、pH为6,该条件下最大吸附量为5.08mg/g。Langmuir和Freundlich两种模型拟合的相关系数R2分别为0.93和0.94,这表明铝改性活性炭对氟离子的吸附过程主要为多层吸附。Aluminiummodified activated carbonwas prepared, and used to remove fluoride ionsfrom water. The results showed that the optimum calcination temperature of the aluminium-modified activated carbon is 500°C. When the initial concentration of F-is 10mg/L at 25℃,the optimal defluorination conditions are as follows:dosage 4g/L,adsorption time 120min, pH 6.The maximum adsorption capacity is 5.08mg/gunder this condition. The correlation coefficients R2 for the Langmuir and Freundlich model were 0.93 and 0.94, respectively, indicating that the adsorption process of fluoride on aluminium-modified activated carbon is mainly multilayer adsorption.

关 键 词：活性炭 改性 吸附 

分 类 号：TU991.266[建筑科学—市政工程]