The effect of substrate concentration on biohydrogen production by using kinetic models

作     者：WANG JianLong WAN Wei 

作者机构：Laboratory of Environmental TechnologyINETTsinghua UniversityBeijing 100084China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2008年第51卷第11期

页      面：1110-1117页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：the National Natural Science Foundation of China (Grant No. 50325824) 

主　　题：glucose biohydrogen production hydrogen production rate modified Logistic model Han-Levenspiel model 

摘      要：The effect of substrate concentration ranging from 0 to 300 g/L on fermentative hydrogen production by mixed cultures was investigated in batch tests using glucose as substrate. The experimental results showed that, at 35 and initial pH 7.0, during the fermentative hydrogen production, the hydrogen °C production potential and hydrogen production rate increased with increasing substrate concentration from 0 to 25 g/L. The maximal hydrogen production potential of 426.8 mL and maximal hydrogen production rate of 15.1 mL/h were obtained at the substrate concentration of 25 g/L. The maximal hydrogen yield and the maximal substrate degradation efficiency were respectively 384.3 mL/g glucose and 97.6%, at the substrate concentration of 2 g/L. The modified Logistic model could be used to describe the progress of cumulative hydrogen production in this study successfully. The Han-Levenspiel model could be used to describe the effect of substrate concentration on fermentative hydrogen production rate.