Photo-fermentative bacteria aggregation triggered by L-cysteine during hydrogen production.

ABSTRACT:

Background

Hydrogen recovered from organic wastes and solar energy by photo-fermentative bacteria (PFB) has been suggested as a promising bioenergy strategy. However, the use of PFB for hydrogen production generally suffers from a serious biomass washout from photobioreactor, due to poor flocculation of PFB. In the continuous operation, PFB cells cannot be efficiently separated from supernatant and rush out with effluent from reactor continuously, which increased the effluent turbidity, meanwhile led to increases in pollutants. Moreover, to replenish the biomass washout, substrate was continuously utilized for cell growth rather than hydrogen production. Consequently, the poor flocculability not only deteriorated the effluent quality, but also decreased the potential yield of hydro

SUBMITTER: Xie GJ 

PROVIDER: S-EPMC3648407 | biostudies-literature | 2013 May

REPOSITORIES: biostudies-literature