Hydrogen Production from Coffee Mucilage in Dark Fermentation with Organic Wastes

Bio-Hydrogen Production from Cheese Whey by Dark Fermentation

This paper focuses on the production of bio-hydrogen by dark fermentation of de-proteinized (by membrane ultra-filtration) cheese whey, an abundant waste stream of the food industry. This waste stream contains mainly lactose, which was also used as reference substrate in bio-hydrogen production tests. Those tests were conducted in batch by using a thermally treated anaerobic sludge as inoculum ...

Fluid-dynamics Characteristics of a Vortex Ingesting Stirred Tank for the Production of Hydrogen from Organic Wastes Fermentation

In this work, a novel stirred tank for the production of H2 by the biological fermentation of organic wastes is presented. The bioreactor design must ensure effective mixing of the liquid phase, full contact between the substrate and the biofilm and energy efficient biogas recovery. A vortexingesting dual impeller stirred vessel equipped with a central draft tube containing the packing support ...

Production of Hydrogen from Post-consumer Wastes

At present, the commercial production of hydrogen is essentially carried out by catalytic steam reforming of hydrocarbons: natural gas and naphtha. However, the instability of the prices of natural gas makes the use of other raw materials increasingly attractive. This research focuses on the development of a technology for producing hydrogen from alternative resources, specifically from two typ...

Fermentative Hydrogen Production from Food-industry Wastes

Τhis study focuses on the exploitation of food-industry wastes as a source for hydrogen production. The wastes which were used were out of date solid baby foods at seven different flavors (solid wastes) and a glucose-based syrup (liquid waste). Preliminary batch hydrogen experiments at mesophilic conditions and initial carbohydrates concentration of 5 g/L were performed to assess the hydrogen p...

Enhancement of bioenergy production from organic wastes 1 by two - stage anaerobic hydrogen and methane production