Effect of carbonate on anaerobic acidogenesis and fermentative hydrogen production from glucose using leachate as supplementary culture under alkaline conditions

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논문

Effect of carbonate on anaerobic acidogenesis and fermentative hydrogen production from glucose using leachate as supplementary culture under alkaline conditions

학술지

Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies

저자명

Liu, Q.; Zhang, X.L.; Jun, Z.; Zhao, A.H.; Chen, S.P.; Liu, F.; Tai, J.; Liu, J.Y.; Qian, G.R.

초록

Carbonate was added into a co-culture of glucose and fresh leachate under alkaline condition to enhance batched acidogenesis and fermentative hydrogen production simultaneously. Results indicated carbonate has positive effect on both H2 production and acetic acid generation. The highest hydrogen yield (about 1.40mol/mol glucose) was obtained at [CO32-]=280mg/L with pH 8.0 and [CO32-]=560mg/L with pH 9. The dominant liquid metabolites were ethanol, acetic and butyric acid. The highest total volatile fatty acid yield (0.38g/g glucose) was achieved at [CO32-]=560mg/L with pH 9. In this case, the acetic acid yield reached 0.13g/g glucose. Verification tests using simulated wastewater as substrate were also carried out at pH 9. Results demonstrated calcium ions inhibit hydrogenogens activity while carbonate addition can alleviate the suppression effect caused by Ca2++.

발행연도

2012

발행기관

Elsevier Applied Science

ISSN

0960-8524

권

113

페이지

pp.37-43

DOI

10.1016/j.biortech.2012.02.115