Nano zero valent iron embedded on chitosan for enhancement of biohydrogen production in dark fermentation

Energy Reports

R. Nitisoravut¹  K.A.H.S. Sewwandi² 

[1] School of Bio-Chemical Engineering and Technology, Sirindhorn International Institute of Technology, Thammasat University, Thailand;Corresponding author.;

关键词: Biohydrogen;    Chitosan;    Dark fermentation;    Volatile fatty acids;    Zero valent iron nanoparticles;   

DOI  :  

来源: DOAJ

【 摘 要 】

Chitosan supported nano zero valent iron (nZVI/CS) was used as a catalyst to improve biohydrogen production. Dark fermentation was carried out by Enterobacter aerogenes using glucose as a carbon source under mesophilic condition at 37 °C. TEM analysis confirmed the morphological arrangement of nano sized zero valent iron embedded on chitosan. The highest biohydrogen yield was 243 mLH2/gglucosewhich was 30% higher than the control. The corresponding initial pH was 6.8 and optimum nZVI/CS concentration was identified as 150 mg/L. Volatile fatty acids (VFA) distribution indicated the acetic pathway was undertaken to produce biohydrogen resulting in a positive correlation between hydrogen yield and acetic acid concentration. The presence of propionic acid and ethanol has negatively affected the hydrogen yield.

【 授权许可】

Unknown