Biosorption of Humic Acid by Aspergillus Fumigatus Mycelial Pellets at Different Conditions and Their Functional Group Interactions

被引：0
|
作者：
Wang, Bao-e [1 ]
Zhou, Kang-qun [1 ]
机构：
[1] Zhongkai Univ Agr & Engn, Sch Environm Sci & Engn, Guangzhou 510225, Guangdong, Peoples R China
来源：
INTERNATIONAL CONFERENCE ON ENERGY AND POWER ENGINEERING (EPE 2014) | 2014年
关键词：
Biosorption; Aspergillus fumigatus; Humic acid; Binding sites; FTIR spectroscopy; ACTIVATED-SLUDGE; ADSORPTION; REMOVAL; BACTERIA; DYE;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Water soluble humic acid was removed from solution by Aspergillus fumigatus (abbr. A. fumigatus) mycelial pellets. The biomass exhibited maximum biosorption capacity at pH 4.0. Humic acid biosorption tended to equilibrium at 180 min. Biosorption capacity was found to decrease with increase of mycelial pellets dosage and their particle size. The effect of temperature on equilibrium biosorption capacity was also estimated. Biosorption functional group interactions between mycelial pellets and humic acid were analyzed by the aid of Fourier transform infrared spectroscopy (FTIR) technology. The results showed that amino in the A. fumigatus acted with the carboxyl of humic acid molecules by chemical actions, and formed hydrogen bonds with the hydroxyl groups during the endothermic biosorption process.
引用
收藏
页码：348 / 354
页数：7
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