Enhancement of photo-hydrogen production in a biofilm photobioreactor using optical fiber with additional rough surface
Journal
Bioresource Technology
Journal Volume
102
Journal Issue
18
Pages
8507-8513
Date Issued
2011
Author(s)
Abstract
In this study, a biofilm photobioreactor with optical fibers that have additional rough surface (OFBP-R) was developed and it was shown that additional rough surface greatly enhanced the biofilm formation and thus increased the cell concentration, leading to an improvement in the hydrogen production performance. The effects of operational conditions, including the influent substrate concentration, flow rate, temperature and influent medium pH, on the performance of OFBP-R were also investigated. The experimental results showed that the optimum operational conditions for hydrogen production were: the influent substrate concentration 60. mM, flow rate 30. mL/h, temperature 30 °C and influent medium pH 7. Under the optimal operation conditions discovered in this work, the OFBP-R yielded fairly good and stable long-term performance with hydrogen production rate of 1.75. mmol/L/h, light conversion efficiency of 9.3% and substrate degradation efficiency of 75%. ? 2011 Elsevier Ltd.
Subjects
Biofilm
Cell immobilization
Optical fiber
Photo-hydrogen production
Photobioreactor
SDGs
Other Subjects
Biofilm formation; Cell concentrations; Hydrogen production performance; Hydrogen production rate; Long term performance; Operational conditions; Optimal operation conditions; Photo-hydrogen production; Photobiore-actor; Rough surfaces; Substrate concentrations; Substrate degradation efficiency; Biofilms; Cell immobilization; Conversion efficiency; Degradation; Flow rate; Hydrogen; Optical fibers; pH effects; Substrates; Surface measurement; Hydrogen production; glass fiber; hydrogen; biofilm; biomass power; bioreactor; biotechnology; experimental study; fiber optics; hydrogen; immobilization; light effect; performance assessment; pH; substrate; article; biofilm; concentration (parameters); degradation; flow rate; immobilized cell; nonhuman; pH; photobioreactor; priority journal; surface property; temperature; Biofilms; Biotechnology; Hydrogen; Hydrogen-Ion Concentration; Light; Optical Fibers; Photobioreactors; Rhodopseudomonas; Surface Properties; Temperature; Time Factors; Waste Disposal, Fluid
Type
journal article