摘要
为了降低饮用水原水中的残余铝含量,使用盐酸改性过的凹凸棒做静态吸附实验.考察了盐酸浓度、改性凹凸棒用量、pH值和吸附时间对吸附性能的影响.结果表明:用6 mol/L的盐酸改性的凹凸棒的吸附性能最好;水样pH值为7.0时,使用0.8 g凹凸棒吸附3 h的效果最好,残余铝含量为0.118 mg/L.
Static adsorption experiment was done by modified attapulgite with hydrochloric acid to reduce the residual aluminum content in the raw water of drinking water. The effects of concentration of hydrochloric acid, dosage of modified attapulgite, adsorption time and pH values on the adsorption capacity of hydrochloric acid modified attapulgite were studied. The results show that attapulgite modified by 6 mol/L hydrochloric acid has the best adsorption capacity; when the pH value of water sample is 7. 0, and in the conditions of amount of attapulgite is 0. 8 g,adsorption time is 3 h, the effect is best and residual aluminum content is 0. 118 mg/L.
出处
《兰州交通大学学报》
CAS
2008年第4期62-64,共3页
Journal of Lanzhou Jiaotong University
关键词
盐酸改性
凹凸棒
吸附
残余铝含量
hydrochloric acid modification
attapulgite
adsorption
residual aluminum content
