甘蔗渣复合炭处理硝基苯废水研究

Study on treatment of nitrobenzene wastewater by carbasse composite carbon

以甘蔗渣和FeSO_(4)为原料,机械活化为强化手段,制备甘蔗渣磁性复合炭材料,进行硝基苯废水的处理。XRD表明制备出FeS/Fe复合炭;SEM-EDX分析表明Fe、FeS颗粒镶嵌在甘蔗渣炭孔中;VSM分析表明制备的复合炭具有磁性,且机械活化法(MA)较浸渍法(IM)磁强度高。在pH为5,炭材料添加量为1.0 g/L,温度30℃,吸附时间50 min条件下,MAC和IMC对硝基苯的去除率分别为89.8%和84.3%;不同因素条件下,MAC的PhNO_(2)去除率均高于IMC,表明机械活化能有效强化炭材料的吸附去除能力。

Using bagasse FeSO_(4) as raw material,mechanical activation as strengthening method,prepared bagasse magnetic composite carbon material to treat the nitrobenzene wastewater.XRD showed that FeS/Fe composite carbon was successfully prepared.SEM-EDX analysis showed that Fe and FeS particles were embedded in the carbon pores of bagasse.VSM analysis shows that the prepared carbon composite has magnetic properties and the magnetic strength of mechanical activation method is higher than that of impregnation method.The results showed that the adsorption and removal rates of MAC and IMC were 89.8%and 84.3%,respectively,under the conditions of pH 5,carbon material addition amount of 1.0 g/L,temperature of 30℃and adsorption time of 50 min.MAC PhNO_(2) removal rates were higher than IMC under different conditions,indicating that mechanical activation can effectively enhance the adsorption and removal capacity of carbon materials.