酸改性天然火山灰吸附去除水中磷污染物  

Adsorptive Removal of Phosphate by Volcanic Tephra after Modified withAcidic Solution

作　　者：彭晓丽[1] 徐芳[1] Eva Chmielewská 

机构地区：[1]上海交通大学环境科学与工程学院,上海200240 [2]夸美纽斯大学自然科学学院

出　　处：《非金属矿》2013年第1期71-73,共3页Non-Metallic Mines

基　　金：科技部中斯国际互访合作项目(5-8)

摘　　要：天然火山灰矿物材料经盐酸溶液改性后,可有效吸附去除水中磷污染物。改性用盐酸适宜浓度为1mol/L,1g改性后火山灰投加入30 mL 50 mg/L磷溶液中(pH值近中性),磷去除率为92.02%;磷吸附行为符合Langmuir等温吸附方程,磷饱和吸附量为1.24 mg/g。Volcanic tephra mineral modified by hydrochloric acid solution was effective for removal of phosphorus pollutant. The suitable concentration of hydrochloric acid medium was 1 mol/L, the phosphorus removal efficiency was 92.02% when 1 g acid modified volcanic tephra was added into 30 mL 50 mg/L phosphorus solution （pH value close to neutral）. The adsorption behavior fit for Langmuir adsorption isotherm, the maximum adsorption capacity for phosphorus was 1.24 mg/g.

关 键 词：天然火山灰 酸改性 磷 吸附 

分 类 号：X703.1[环境科学与工程—环境工程]