As and Fe in acidic liquors, such as acid mine drainage, require treatment before release to the environment. Adsorption or co-precipitation of As with biogenic and chemically produced Fe-containing settleable precipitates, i.e. schwertmannites was studied. Autotrophic Leptospirillum...

Hydrogen production from beverage industry wastewater (20g/Lhexose equivalent) using an immobilized cell reactor with a continuous mode of operation was studied at various hydraulic retention times (HRT, 8–1.5h). Maximum hydrogen production rate (HPR) of 55L/L-d was obtained at HRT 1.5h (an...

Assessment is an essential process in framing government policy. It is critical to select the appropriate targets to meet the needs of national development. This study aimed to develop an assessment model for evaluating hydrogen fuel cell applications and thus provide a screening tool for...

Biobutanol production from cellulosic feedstock is considered promising and economically feasible. A highly efficient butanol-producing bacterial microflora (containing mainly Clostridial species) was obtained from hydrogen-producing sewage sludge. In this work, two types of agricultural waste...

The conversion efficiency of tofu-processing wastewater (TPW) into hydrogen and ethanol for energy source in a tofu-making factory was evaluated by testing various sludge types, initial cultivation pH values, temperatures and substrate concentrations. Experimental results indicated that a peak...

The feasibility of biofuels (hydrogen and ethanol) production from sweet potato without any pretreatment was evaluated using response surface methodology. Batch experiments were carried out with cow dung and anaerobic sewage sludge seeds at a temperature of 35°C, pH of 4.5–8.5 and substrate...

The interfaces of electrolyte|catalyst|electrode play an important role in the performance of proton-exchange membrane fuel cells (PEMFCs). Increasing the interface effective area and lowering the charge transfer resistance of the interface are significant issues to promote the cell performance....

Biomass energy has been regarded as an effective instrument in combatting a high oil price. However, the increased production of biomass energy has raised the demand for agricultural products and led to a global grain deficiency and rising grain prices. This paper discusses the influence of...