活性氧化铝吸附水中四氯化碳的实验研究

摘要

Through the static adsorption experiment, the adsorption characters of the adsorption of carbon tetrachloride by activated alumina was investigated preliminarily, and the effects of adsorption time, temperature, pH and size of activated alumina were discussed. The results show that, ordinary activated alumina had a general effect on adsorption of carbon tetrachloride in water, the saturated adsorption capacity could be about 821 juLg/g. The reaction corresponds to Langmuir isotherm, the adsorption kinetics process accords with inter-particle diffusion equation. Using activated alumina to treat wastewater with low carbon tetrachloride was feasible, and taking measures, like activation or modification of activated alumina, to improve its adsorption performance had good research foreground.%通过静态吸附试验,初步探讨了活性氧化铝对水中四氯化碳的吸附特性,研究了吸附时间、温度、pH值和活性氧化铝粒径对吸附量的影响.结果表明,普通活性氧化铝对水中四氯化碳的吸附效果一般,吸附质量比约为821 μg/g.活性氧化铝对四氯化碳的吸附等温线符合Langmuir等温线,其吸附动力学可用颗粒内扩散方程描述.研究表明,利用活性氧化铝处理低浓度含四氯化碳废水具有可行性,采取活化或改性等措施改善其吸附性能具有广阔的研究前景.