Removal of Color Compounds from Sugarcane Juice by Modified Sugarcane Bagasse: Equilibrium and Kinetic Study
Removal of Color Compounds from Sugarcane Juice by Modified Sugarcane Bagasse: Equilibrium and Kinetic Study
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改性甘蔗渣去除甘蔗汁中的有色化合物：平衡和动力学研究
DOI：
10.1007/s12355-015-0415-9
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发表时间：
2016-06
期刊：
影响因子：
1.9
通讯作者：
Fu, Xiong
中科院分区：
文献类型：
--
作者：
Meng, He-cheng;Zhao, Zhen-gang;Huang, Qiang;Fu, Xiong
以改性甘蔗渣为吸附剂，研究了其对糖汁中有色物质的吸附性能。在不同的操作条件下，包括吸附剂的用量，pH值，和接触时间的颜色化合物的吸附进行了研究。采用三种动力学模型和两种吸附等温线分别描述吸附过程和评价吸附平衡。结果表明，吸附剂用量为0.05 g/mL，pH值为5，吸附时间为30 min时，脱色率为59.18%。吸附动力学研究表明，吸附过程符合准二级化学吸附模型。吸附行为符合Freundlich吸附等温线模型，表现出多层吸附能力。再生研究表明，该吸附剂在多次再生循环中具有良好的重复使用性能。这些结果表明，改性甘蔗渣是一种廉价而有效的吸附剂，它具有潜在的应用，从糖汁中去除有色化合物。
The adsorption performance of color compounds in sugar juice was investigated using modified sugarcane bagasse as an adsorbent. The adsorption of color compounds was investigated at different operating conditions including adsorbent dosage, pH, and contact duration. Three kinetic models and two isotherms were applied to describe the adsorption process and evaluate the adsorption equilibrium, respectively. Results showed that the adsorption was optimum at an adsorbent dosage of 0.05 g/mL and at pH 5 for 30 min, which yielded 59.18 % of decolorization rate. Adsorption kinetics indicated that the process followed the pseudo-second-order chemisorption model. The adsorption behavior was well described by the Freundlich isotherm model, showing a multilayer capacity for color compounds. Moreover, the regeneration studies showed the adsorbent had a good reuse performance over several regeneration cycles. These results suggest that the modified sugarcane bagasse is an inexpensive and efficient adsorbent, which has potential application for removing color compounds from sugar juice.
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DOI：
--
发表时间：
1995
期刊：
--
影响因子：
--
作者：
Icumsa
通讯作者：
Icumsa
影响因子：
8.1
作者：
R. Sivaraj;C. Namasivayam;K. Kadirvelu
通讯作者：
R. Sivaraj;C. Namasivayam;K. Kadirvelu
影响因子：
4.2
作者：
Basso, MC;Cerrella, EG;Cukierman, AL
通讯作者：
Cukierman, AL
影响因子：
9.9
作者：
Xiaoyan Yang;B. Al-Duri
通讯作者：
Xiaoyan Yang;B. Al-Duri
影响因子：
9.9
作者：
Gupta, Vinod K.;Mittal, Alok;Mittal, Jyoti
通讯作者：
Mittal, Jyoti