摘要
选择火山渣、骨炭、粉煤灰和锰砂为吸附材料,考察其去除水体中F-和SO2-4的性能,并将火山渣和骨炭进行改性,研究其改性后的动力学规律.结果表明:火山渣和骨炭对F-的吸附量分别为0.092,0.041mg/g,对SO2-4的吸附量分别为5.72,3.99mg/g;粉煤灰和锰砂对F-的吸附量均低于0.020mg/g,均未吸附SO2-4;Al2(SO4)3可作为改性剂;经质量分数为10%的Al2(SO4)3联合热改性后火山渣对F-的最大吸附量为0.099mg/g;经质量分数为10%的Al2(SO4)3化学改性后火山渣对SO2-4的最大吸附量为5.93mg/g;二者动力学吸附规律均符合准二级方程.
Four kinds of adsorption materials-scoria,bone char,ash and manganese sand were used to remove F-and SO4^2-in water.The research results show that adsorption capacities of scoria and bone char for F-were 0.092,0.041mg/g;adsorption capacities of them for SO4^2-were 5.72,3.99mg/g.Adsorption capacities of ash and manganese sand for F-were both below 0.020mg/g.And SO4^2-was almost not adsorbed by them.Modification was applied in scoria and bone char because of their good adsorption effects.The research results show that Al2（SO4）3could be used as modifier.Adsorption capacity of scoria which was soaked in 10% Al2（SO4）3then calcinated at 300 ℃ was the maximum0.099mg/g.Adsorption capacity of scoria which was soaked in 10% Al2（SO4）3 was the maximum5.93mg/g.Adsorption kinetics of them both followed quasi-secondary dynamics equation.
出处
《吉林大学学报（理学版）》
CAS
CSCD
北大核心
2015年第4期817-822,共6页
Journal of Jilin University:Science Edition
基金
科技部村镇饮用水安全保障重大科技工程项目(批准号:2012BAJ25B10)
关键词
除氟
除硫酸盐
吸附材料
改性材料
fluoride removal
sulfate removal
adsorption materials
modified material
