Nakamura Takeo, Hirata Mizuho, Kawasaki Naohito, Tanada Seiki, Tamura Takamichi, Nakahori Yutaka
School of Pharmaceutical Sciences, Kinki University, Kowakae, Higashi-Osaka, Osaka, Japan.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2003 Mar;38(3):555-62. doi: 10.1081/ese-120016917.
The adsorption ability of charcoal from extracted residue of coffee beans for indigo carmine removal was investigated by the batch method. Differences in the removal ratio and removal rate of indigo carmine could be explained by differences in the properties of charcoal. In the relationship between the amount of indigo carmine adsorbed and the square root of elapsed time, a good linearity was recognized. Since the relationship between the amount of indigo carmine adsorbed and square root of elapsed time showed a good linearity, the intraparticle diffusion of indigo carmine onto pores of adsorbents was identified as the rate-limiting step in the adsorption process.
采用分批法研究了咖啡豆提取残渣中木炭对靛蓝胭脂红的吸附能力。木炭性质的差异可以解释靛蓝胭脂红去除率和去除速率的差异。在靛蓝胭脂红吸附量与经过时间平方根的关系中，呈现出良好的线性关系。由于靛蓝胭脂红吸附量与经过时间平方根之间的关系呈现出良好的线性关系，因此靛蓝胭脂红在吸附剂孔隙上的颗粒内扩散被确定为吸附过程中的限速步骤。
