Forest harvest residues can be a cost-effective feedstock for a biorefinery, but the high
lignin content of forest residues is a major barrier for enzymatic sugar production. Sulfite
pretreatment to overcome strong recalcitrance of lignocelluloses (SPORL) was applied to a
Douglas-fir (Pseudotsuga menziesii (Mirb) Franco var. menziesii) forest residue in...
The Teakettle Ecosystem Experiment in the southern Sierra Nevada is using thinning and prescribed
fire to recreate historical stand conditions. As part of Teakettle we assessed pretreatment diversity and density
of the soil arthropod community in 1998 and 2000. We determined the density and diversity of soil microarthropods
among treatment...
A year-long, bench-scale treatability study was performed to assess whether an activated sludge sequencing batch reactor could be used to treat an influent stream of 50/50 (v/v) municipal wastewater and landfill leachate to discharge standards established by the Oregon Department of Environmental Quality. One primary obstacle that was exposed during...
A year-long, bench-scale treatability study was performed to assess whether an activated sludge sequencing batch reactor could be used to treat an influent stream of 50/50 (v/v) municipal wastewater and landfill leachate to discharge standards established by the Oregon Department of Environmental Quality. One primary obstacle that was exposed during...
Full Text:
.
Title: Effect of Landfill Leachate Pretreatment and SBR Operational Parameters on
Nitrification
This study demonstrated at the pilot-scale (50 kg) use of Douglas-fir forest harvest residue, an underutilized
forest biomass, for the production of high titer and high yield bioethanol using sulfite chemistry
without solid–liquor separation and detoxification. Sulfite Pretreatment to Overcome the Recalcitrance
of Lignocelluloses (SPORL) was directly applied to the...
Douglas-fir (Pseudotsuga menziesii) forest residues were physically fractionated through sieving. The bark and wood were separated for large-sized fractions (>12.7 mm), and their contents were determined. The chemical compositions of the large fractions were calculated based on the contents and chemical compositions of the bark and wood. The chemical compositions...
Increase in energy demand has led towards considering lignocellulosic feedstocks as potential for ethanol production. Aim of this study was to estimate the potential of grass straws from conservation reserve program (CRP) lands as feedstocks for ethanol production. The CRP was initiated to ensure reduction in soil erosion with a...