A sustainable pathway of cellulosic ethanol production integrating anaerobic digestion with biorefining

  title={A sustainable pathway of cellulosic ethanol production integrating anaerobic digestion with biorefining},
  author={Zhengbo Yue and Charles Teater and Yan Liu and James Maclellan and Wei Liao},
  journal={Biotechnology and Bioengineering},
Anaerobic digestion (AD) of animal manure is traditionally classified as a treatment to reduce the environmental impacts of odor, pathogens, and excess nutrients associated with animal manure. This report shows that AD also changes the composition of manure fiber and makes it suitable as a cellulosic feedstock for ethanol production. Anaerobically digested manure fiber (AD fiber) contains less hemicellulose (11%) and more cellulose (32%) than raw manure, and has better enzymatic digestibility… 
Potential use of feedlot cattle manure for bioethanol production.
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Assessing solid digestate from anaerobic digestion as feedstock for ethanol production.
The cellulose utilization efficiencies determined that the CSTR AD fiber was a suitable biorefining feedstock compared to switchgrass and corn stover.
Anaerobic treatment of lignocellulosic material to co-produce methane and digested fiber for ethanol biorefining.
The net energy generated from the ratio 40:60 was 5.5MJkg(-1) dry raw feed, which was an 18% increase on net energy output compared to the other ratios and proved to be most beneficial for a biorefinery.
Effects of corn stover as carbon supplement on an integrated anaerobic digestion and ethanol fermentation process
An integrated anaerobic digestion (AD) and ethanol fermentation process on a mixed feedstock of dairy manure and corn stover was performed to investigate the influence of corn stover on biogas
Assessing straw digestate as feedstock for bioethanol production
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A self-sustaining advanced lignocellulosic biofuel production by integration of anaerobic digestion and aerobic fungal fermentation.
An integrated system including anaerobic digestion and aerobic fungal fermentation to convert corn stover, animal manure and food wastes into microbial lipids for biodiesel production is developed, which concludes a self-sustaining lignocellulosic biodiesel process and provides a new route to co-utilizecorn stover and organic wastes for advanced biofuel production.
Fungal fermentation on anaerobic digestate for lipid-based biofuel production
An integrated process that uses biogas energy to power fungal fermentation and converts remaining carbon sources, nutrients, and water in the digestate into biofuel precursor-lipid was achieved by integrating anaerobic digestion andFungal fermentation.
Combined sodium hydroxide and ammonium hydroxide pretreatment of post-biogas digestion dairy manure fiber for cost effective cellulosic bioethanol production
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Development of a new bioethanol feedstock – Anaerobically digested fiber from confined dairy operations using different digestion configurations
Abstract Two types of digesters, continuous stirring-tank reactor (CSTR) and plug flow reactor (PFR), were integrated into a biorefining concept to generate a new cellulosic ethanol feedstock
A sustainable biorefinery to convert agricultural residues into value-added chemicals
This study demonstrates an energy positive and freshwater-free biorefinery to simultaneously treat animal wastes and produce a fine chemical—chitin, providing a win–win solution for agricultural waste management and value-added chemical production.


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The transformation of organic matter during anaerobic digestion of mixtures of energetic crops, cow slurry, agro-industrial waste and organic fraction of municipal solid waste (OFMSW) was studied by
Recovery of dairy manure nutrients by benthic freshwater algae.
The objective of this research was to assess the ability of benthic freshwater algae to recover nutrients from dairy manure and to evaluate nutrient uptake rates and dry matter/crude protein yields in comparison to a conventional cropping system.
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The U.S. Department of Energy (DOE) and the U.S. Department of Agriculture (USDA) are both strongly committed to expanding the role of biomass as an energy source. In particular, they support biomass
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Compost can improve soil properties when incorporated into soil; however, little information is available regarding impacts of compost topdressing. Objectives of this study were to evaluate the
Anaerobic digestion of biomass