CAJ | 학술논문

采用氯化锌浸渍法制备柚子皮活性炭，研究了该活性炭对染料废水中刚果红的吸附性能。结果表明：在pH＝11时，吸附效果最好；投加量越大，单位质量活性炭对刚果红的吸附量越小；吸附量随溶液初始浓度的升高而增加；刚果红的吸附在90 min内基本可以达到平衡，柚子皮活性炭对刚果红的吸附是物理性质的、自发的；等温吸附可采用Langmuir等温模型拟合且相关性显著；动力学吸附过程很好地遵循准二级动力学模型，刚果红在柚子皮活性炭孔隙中的扩散不是唯一的速率控制步骤，可能有多个步骤共同控制该吸附过程。
채용록화자침지법제비유자피활성탄，연구료해활성탄대염료폐수중강과홍적흡부성능。결과표명：재pH＝11시，흡부효과최호；투가량월대，단위질량활성탄대강과홍적흡부량월소；흡부량수용액초시농도적승고이증가；강과홍적흡부재90 min내기본가이체도평형，유자피활성탄대강과홍적흡부시물이성질적、자발적；등온흡부가채용Langmuir등온모형의합차상관성현저；동역학흡부과정흔호지준순준이급동역학모형，강과홍재유자피활성탄공극중적확산불시유일적속솔공제보취，가능유다개보취공동공제해흡부과정。
Activated carbon adsorbent was prepared from pomelo peel by activation with zinc chloride.The ab-sorbing effect of activated carbon on Congo red is studied.The results suggested that when pH=1 1 ,the adsorp-tion was the best.The higher the dosage,the less the adsorbing capacity on Congo red was.Adsorption could be increased by enhancing the initial Congo red concentration.It was found that the adsorption of Congo red was of physical nature,spontaneous and the adsorption got to the balance basically after 60 min.When isothermal adsorption of Congo red used the Freundlich isothermal model fitting,the adsorption kinetics process of Congo red satisfactorily follows the second order kinetic model.However,the pore diffusion of Congo red in pomelo peel activated carbon adsorption was not the only rate controlling step,the adsorption process may be controlled by multiple steps together.