Harvesting biohydrogen from cellobiose from sulfide or nitrite-containing wastewaters using Clostridium sp. R1
Journal
Bioresource Technology
Journal Volume
102
Journal Issue
18
Pages
8547-8549
Date Issued
2011
Author(s)
Ho K.-L.
Abstract
Harvesting biohydrogen from inhibiting wastewaters is of practical interest since the toxicity of compounds in a wastewater stream commonly prevents the bioenergy content being recovered. The isolated Clostridium sp. R1 is utilized to degrade cellobiose in sulfide or nitrite-containing medium for biohydrogen production. The strain can effectively degrade cellobiose free of severe inhibitory effects at up to 200mgl -1 sulfide or to 5mgl -1 nitrite, yielding hydrogen at >2.0mol H 2 mol -1 cellobiose. Principal metabolites of cellobiose fermentation are acetate and butyrate, with the concentration of the former increases with increasing sulfide and nitrite concentrations. The isolated strain can yield hydrogen from cellobiose in sulfide-laden wastewaters. However, the present of nitrite significantly limit the efficiency of the biohydrogen harvesting process. ? 2011 Elsevier Ltd.
Subjects
Cellobiose
Clostridium
Hydrogen
Nitrite
Sulfide
Other Subjects
Bio-energy; Bio-hydrogen; Bio-hydrogen production; Cellobiose; Inhibitory effect; Isolated strains; Nitrite; Sulfide; Wastewater streams; Clostridium; Harvesting; Hydrogen; Volatile fatty acids; Wastewater; Hydrogen sulfide; acetic acid; butyric acid; cellobiose; hydrogen; nitrite; sulfide; acetate; bacterium; biodegradation; bioenergy; biofuel; cellulose; fermentation; hydrogen; inhibitor; metabolite; nitrite; sugar; sulfide; wastewater; article; bacterium isolation; biodegradability; bioenergy; Clostridium; enrichment culture; fermentation; nonhuman; priority journal; waste water; waste water management; Biofuels; Cellobiose; Clostridium; Fermentation; Hydrogen; Nitrites; Sulfides; Waste Disposal, Fluid; Clostridium; Clostridium sp.
Type
journal article