作　　者： ; ; ; ; ; ; ; ; ; ;

机构地区： 广东工业大学环境科学与工程学院

出　　处： 《贵州农业科学》 2012年第1期143-147,共5页

摘　　要： 为探究柚子皮对染料废水的吸附规律及最佳条件,以亚甲基蓝模拟废水,进行了柚皮粉对亚甲基蓝的吸附规律及吸附效果试验。结果表明:在温度30℃,pH 8,震荡时间60min的条件下,0.4g柚皮粉可使100mL浓度为140mg/L亚甲基蓝的去除率达83%以上,30℃下柚子皮理论饱和吸附量为133mg/g。柚子皮吸附亚甲基蓝的过程以物理吸附为主,包括外部液膜扩散、表面吸附和颗粒内部扩散等过程,可以用Langmuir、Temkin等温吸附方程和二级吸附速率方程进行很好的描述。 The adsorption performance of pummelo peel to methylene blue was tested to study the adsorption regulation and optimal adsorption condition of pummelo peel to dye waste water.The results showed that the methylene blue removal rate of 0.4 g pummelo peel to 100 mL 140 mg/L methylene blue reached above 83% under the condition of 30℃,pH 8 and 60 min.The theoretical saturation adsorption amount of pummelo peel was 133 mg/g at 30℃.The main adsorption pattern of pummelo peel to methylene blue was physical adsorption including external liquid film diffusion,surface adsorption and particle internal diffusion.The isothermal adsorption equation and secondary adsorption rate equation of Langmuir and Temkin could be used to describe the adsorption process of pummelo peel to methylene blue.

关 键 词： 柚子皮 亚甲基蓝 吸附

领　　域： [环境科学与工程]