氯化锌与高锰酸钾混合改性甘蔗渣重金属吸附剂的研究

Study on potassium permanganate with zinc chloride modified bagasse heavy metal adsorbent in the adsorption of heavy metal chromium

本研究以甘蔗渣为原料,用Zn Cl2与KMn O4混合对其进行改性,通过其对水中C(rⅥ)的去除率来考察其吸附性能,并对改性甘蔗渣进行了SEM表征。结果表明:甘蔗渣用量为2g,甘蔗渣的尺寸为90目,KMn O4用量为1g、改性温度为50℃、改性时间为8h,Zn Cl12浓度为100g·L-时,改性甘蔗渣吸附重金属六价铬的去除率达到最大值为87.1%,吸附量为10.5mg·g-1。改性甘蔗渣的SEM表征显示:表面出现微孔结构,比表面积增大,提高了改性甘蔗渣的吸附能力。

In this study, as raw material bagasse, was modifiedwith the zinc chloride and Potassium Perman- ganatemixed, to study the adsorption performance was studied by the removal rate of Cr（ Ⅵ） in water, and the modified sugarcane bagasse were characterized by SEM,the results showed that： when the amount of the bagasse was 2g,Size of bagasse was 90 mesh,The amount of potassium permanganate was lg,modification temperature was 50℃, modification time was 8h, the concentration of zinc chloride was 100g.L-1, under this condition, the adsorption of heavy metal products six chromium to obtain removal rate reached a maximum value was 87.1%, the adsorption amount of 10.5mg.g-1. It can be seen from the SEM that the surface appeared porous structure, the spe- cific surface area increased and the adsorption capacity of the modified bagasse was improved.