作　　者： ; ; ;

机构地区： 河北工业大学化工学院

出　　处： 《河北师范大学学报（自然科学版）》 2005年第4期384-386,共3页

摘　　要： 研究了利用水合肼提高天然锰矿界面吸附能力的改性方法.结果表明:天然锰矿经水合肼反应改性后,对甲基橙的吸附能力明显提高;改性时的硫酸浓度、水合肼用量、高锰酸钾氧化及反应温度均影响锰矿的吸附性能.改性天然锰矿的吸附pH曲线呈"反S"型,在pH<2.4时对甲基橙有很强的吸附去除能力;吸附等温线符合Langmuir型,20℃时饱和吸附量为776.5mg/g. The modified method of improving the interface adsorbing of natural manganic ore by hydrazine hydrate was studied.The result shows that the adsorbing of natural manganic ore to methyl orange was improved markedly after it was modified by hydrazine hydrate,and it was found the adsorbing was influenced by concentration of sulfuric acid,dosage of hydrazine hydrate,dosage of potassium permanganate,and temperature of the modified reaction,etc.The adsorption pH curve has shown 'reverse S-type'.Under the condition of pH<2.4,the methyl orange can be strongly removed from wastewater by the modified manganic ore.The adsorption isotherm was in keeping with Langmuir-type.When the temperature was 20?℃,the adsorption saturation was 776.5?mg/g.

关 键 词： 天然锰矿 水合肼 改性 吸附

领　　域： [环境科学与工程] [理学]