【摘要】 采用煅烧高岭土制备的纳米沸石分子筛吸附、去除水中有机污染物苯,试验中研究了纳米沸石分子筛的用量、原水浓度、反应时间、pH值、温度等条件对水中苯的吸附量和去除率的影响.测试结果表明:在常温、常压下,吸附平衡时间为80 min;吸附等温线符合Langmuir吸附等温方程;纳米沸石分子筛对苯的吸附属于物理吸附;当温度为10℃,pH值为6时,吸附效果较好,其饱和吸附量为92.5 mg/g.更多还原

【Abstract】 Using nano-zeolite prepared by gaolin clay as adsorbent,the influence of concentration,adsorption time,pH value,temperature and the weight of adsorbent on adsorption capacity and removal rate is experimentally investigated.The results suggest that the adsorption time is 80 min,when the adsorption capacity reaches a plateau value under normal temperature and pressure.The adsorption isotherm accords with Langmuir model.The adsorption of benzene on nano-zeolite is physical adsorption.When temperature is 10℃ and pH value is 6,the effect of adsorption is better,and the saturation adsorption capacity is 92.5 mg/g.更多还原