CAJ | 학술논문

利用单宁微球吸附Cr（Ⅵ）,探讨了温度、pH值、Cr（Ⅵ）初始质量浓度等因素对单宁微球吸附性能的影响,并分析了其吸附等温曲线。结果表明,单宁微球对Cr（Ⅵ）具有很好的吸附效果,吸附量可达到45.5 mg/g。单宁微球对Cr（Ⅵ）的去除率随吸附时间的延长而增大,5 h后基本达到平衡。温度对单宁微球吸附Cr（Ⅵ）的影响比较大,单宁微球对Cr（Ⅵ）的吸附是一个吸热的过程,随着温度的升高,吸附量也增大。单宁微球对Cr（Ⅵ）的吸附等温数据可用Freundlich方程描述。
이용단저미구흡부Cr（Ⅵ）,탐토료온도、pH치、Cr（Ⅵ）초시질량농도등인소대단저미구흡부성능적영향,병분석료기흡부등온곡선。결과표명,단저미구대Cr（Ⅵ）구유흔호적흡부효과,흡부량가체도45.5 mg/g。단저미구대Cr（Ⅵ）적거제솔수흡부시간적연장이증대,5 h후기본체도평형。온도대단저미구흡부Cr（Ⅵ）적영향비교대,단저미구대Cr（Ⅵ）적흡부시일개흡열적과정,수착온도적승고,흡부량야증대。단저미구대Cr（Ⅵ）적흡부등온수거가용Freundlich방정묘술。
Using tannin microspheres to absorb the Cr（Ⅵ） in the water.The absorption performance was influenced by the factors including the absorbent amount used,the temperature,pH,initial concentration of the Cr（Ⅵ）.And the absorption isotherms of tannin microspheres to absorb the Cr（Ⅵ） were also analyzed in this paper.The results showed that the tannin microspheres had a good adsorption effect to Cr（Ⅵ）.The maximum adsorption capacity of the biosorbent was 45.5 mg/g under 298 K.The adsorptive capacity of tannin microspheres to Cr（Ⅵ） was increased as the adsorption time increased,it took 5 h to attain equilibrium.The results also showed that tannin microspheres on Cr（Ⅵ） adsorption process was a spontaneous heat reaction process,and the absorption isotherm data can be described by the equation of Freundlich.