CAJ | 학술논문

为考察荔枝壳对废水中 Cr(VI)的吸附性能，用电镜对荔枝壳进行表征，并考察了 pH、吸附剂用量、时间和温度对吸附性能的影响。结果表明荔枝壳表面粗糙、凹凸不平，对Cr(VI)具有较强的吸附能力。在温度25℃下，震荡吸附3 h，荔枝壳对Cr(VI)去除率可达91.5%。荔枝壳对Cr(VI)吸附的动力学和热力学研究结果表明，该吸附过程符合准二级吸附动力学模型和Langmuir等温方程。
위고찰려지각대폐수중 Cr(VI)적흡부성능，용전경대려지각진행표정，병고찰료 pH、흡부제용량、시간화온도대흡부성능적영향。결과표명려지각표면조조、요철불평，대Cr(VI)구유교강적흡부능력。재온도25℃하，진탕흡부3 h，려지각대Cr(VI)거제솔가체91.5%。려지각대Cr(VI)흡부적동역학화열역학연구결과표명，해흡부과정부합준이급흡부동역학모형화Langmuir등온방정。
In order to investigate the adsorption properties of lychee exocarp on Cr(VI), the surface characteristics of lychee exocarp was revealed by SEM and the effects of pH, dosage, time and temperature on adsorption were investigated. The results indicated that the surface of lychee exocarp was rough and had strong adsorption ability to Cr(VI). At the temperature of 25℃, the removal efficiency of Cr(VI) reached 91.5% after 3 hours. According to the results of kinetic and thermodynamic studies, the adsorption process was consistent with pseudo-second-order adsorption model and Langmuir isothermal equation.