CAJ | 학술논문

研究了茶叶渣对孔雀石绿( MG)的吸附性能、等温吸附模型和吸附动力学。分别考察了吸附时间、pH值、茶叶渣投加量、孔雀石绿初始浓度、温度等因素变化对孔雀石绿吸附效果的影响。结果表明,吸附时间4 h,茶叶投加量2 g/L,中性条件下就能达到较好的孔雀石绿去除效果。茶叶渣对孔雀石绿吸附符合Langmuir、Freundlich、Temkin模型,最大吸附量为79.37 mg/g。吸附动力学符合准一级、准二级动力学模型。茶叶渣对孔雀石绿的吸附是吸热过程。
연구료다협사대공작석록( MG)적흡부성능、등온흡부모형화흡부동역학。분별고찰료흡부시간、pH치、다협사투가량、공작석록초시농도、온도등인소변화대공작석록흡부효과적영향。결과표명,흡부시간4 h,다협투가량2 g/L,중성조건하취능체도교호적공작석록거제효과。다협사대공작석록흡부부합Langmuir、Freundlich、Temkin모형,최대흡부량위79.37 mg/g。흡부동역학부합준일급、준이급동역학모형。다협사대공작석록적흡부시흡열과정。
The adsorption behavior,isotherm model and dynamics of malachite green ( MG) on tea waste have been studied. The effects of adsorption time, pH value, tea waste dosage, MG initial concentration and temperature on MG adsorption have been investigated,respectively. The results show that the better MG removal effect can be obtained in the adsorption time of 4 h,tea waste dosage of 2 g/L and neutral so-lution. The adsorption of malachite green on tea waste fits with Langmuir,Freundlich and Temkin models, and the maximum adsorption capacity is 79. 37 mg/g. The adsorption dynamic model fits with pseudo-first-order and pseudo-second-order dynamic model. The adsorption of malachite green on tea waste is en-dothermic process.