Content tagged "anaerobic digestion"

Anaerobic Digestion Systems

Animal Manure Management Updated: November 17, 2017

In this webinar, presenters discuss opportunities and the value of these systems as well as the challenges that may come along when using an anaerobic...

Cayuga County Manure Digester Virtual Tour

Animal Manure Management Farm Energy Updated: June 05, 2017

Anaerobic digestion is a manure treatment system that produces biogas. There are many benefits of digestion such as reductions in: odor, pathogens, and...

Recommendations of the Chesapeake Bay Program Expert Panel on Manure Treatment Technologies

Animal Manure Management Updated: May 21, 2017

The US EPA Chesapeake Bay Program assesses nutrient loading to the Chesapeake Bay. There is a need to determine the impact of manure treatment technologies...

Effectiveness of Different Dairy Manure Management Practices in Controlling the Spread of Antibiotics and Antibiotic Resistance

Animal Manure Management Updated: May 16, 2017

Even when antibiotics are used judiciously, antibiotic residues, antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARG) can accumulate in...

Renewable Energy Set-asides Push Biogas to Pipeline

Animal Manure Management Updated: May 15, 2017

Deriving the most value from the harvesting of organic wastes, particularly waste produced through farming operations, can be quite challenging. This paper...

Inclusion of the Environment Bottom Line in Waste to Worth: The Interaction Between Economics, Environmental effects, and Farm Productivity in Assessment of Manure Management Technology and Policy

Animal Manure Management Updated: May 10, 2017

In a global context, the pork industry constitutes a huge economic sector but many producers operate on very thin margins. In addition, pork is one of the...

Manure Management Technology Selection Guidance

Animal Manure Management Updated: May 10, 2017

Manure is an inevitable by-product of livestock production. Traditionally, manure has been land applied for the nutrient value in crop production and...

Aeration to Improve Biogas Production by Recalcitrant Feedstock

Why aerate biogas digesters?Most agricultural waste is largely composed of polymers such as lignin and complex carbohydrates that are slowly or nearly...

Assessment of Coordinated Anaerobic Digestion of Dairy Manure

Animal Manure Management Updated: March 23, 2017

Improving the economic feasibility of anaerobic digestion projects for processing dairy manure.We completed a study that evaluated the economics of dairy...

Integrating Small Scale Digestion Systems in Developing Regions

Animal Manure Management Updated: March 22, 2017

People in developing countries regularly lack access to energy or their energy source is not reliable. Low cost anaerobic digestion systems have the...

Innovative Business Models for On-farm Anaerobic Digestion in the U.S.

Animal Manure Management Updated: March 22, 2017

AgSTAR is a collaborative voluntary program of the Environmental Protection Agency (EPA) and United States Department of Agriculture (USDA). AgSTAR promotes...

Early Stage Economic Modeling of Gas-permeable Membrane Technology Applied to Swine Manure after Anaerobic Digestion

Animal Manure Management Updated: March 21, 2017

The objective of this study was to conduct cost versus design analysis for a gas-permeable membrane system using data from a small pilot scale experiment and...

Farm Energy Anaerobic Digestion and Biogas

Animal Manure Management Farm Energy Updated: November 15, 2016

Manure Treatment Technology Proceedings for Waste to Worth 2013

Animal Manure Management Updated: September 07, 2016

W2W13 proceedings | Waste to Worth home On this page: Anaerobic Digestion | Composting | Separation | Vegetative | Thermal |  Nutrient Recovery In Vessel...

Next Generation Technology Swine Waste-to-Energy Project

Animal Manure Management Updated: October 09, 2015

Waste to Worth home | More proceedings....The Loyd Ray Farms project is the first swine waste project in the State of North Carolina to generate and transfer...

Technologies for Anaerobic Digestion of Flushed Swine Manure

Animal Manure Management Updated: July 22, 2015

Hog farmers face a unique challenge to implement digestion -- namely the low volumetric methane yield of wet swine manure.  The most common digester used on...

Coupling Dairy Manure Anaerobic Digesters with Commercial Greenhouses – An assessment of Technical and Economic Feasibility

Animal Manure Management Updated: May 15, 2015

U.S. Secretary of Agriculture Tom Vilsack declared a goal in 2011 of bringing one new manure-based anaerobic digestion (AD) system on-line per week; however,...

Money to Burn: How to Capitalize on BioCNG at Your Wastewater Plant

Animal Manure Management Updated: May 01, 2015

Across the globe, units of government are struggling with the balance of deriving clean energy with economics and environmental protection. This struggle has...

Effects of Mixing Duration on Biogas Production and Methanogen Distribution in Dairy Manure Anaerobic Digesters

Animal Manure Management Updated: April 30, 2015

Mixing is an important parameter for anaerobic digesters for both design and operation. This is especially true for digesters that treat diary manure, which...

Effect of Temperature on Methane Production from Field-Scale Anaerobic Digesters Treating Dairy Manure

Animal Manure Management Updated: April 30, 2015

Anaerobic digestion is a process that results in the production of biogas that can be used a renewable source of electricity on-farm or sold to the...

Poultry Digestion - Emerging Farm-Based Opportunity

Animal Manure Management Updated: April 29, 2015

While EPA AGSTAR has long supported the adoption of anaerobic digestion on dairies and swine farms, they have not historically focused on the use of...

Demonstration of a Pilot Scale Leach-bed Multistage Digester for Treating Dry-lot Wastes

Animal Manure Management Updated: April 29, 2015

Waste to Worth home | More proceedings....Dry-lot feedlot wastes have historically been a challenging feed-stock for digestion due to the dry recalcitrant...

A Novel Multiple Staged Leachbed Digestion System for the Treatment of Dry-lot Feedlot and Dairy Manures

Animal Manure Management Updated: April 29, 2015

A multiple staged digestion system capable of digesting drylot manures is currently under development. The system is currently being validated at the pilot...

Low Tech Waste to Energy Applications in Developing Countries

Animal Manure Management Updated: April 07, 2015

Animal waste is fully utilized in most developing countries, particularly in Afghanistan, Pakistan and Sri Lanka.  Utilization of animal waste for energy,...

The Dairy Manure Biorefinery

Animal Manure Management Updated: March 24, 2015

Some dairy farms have experimented with “add-on” technologies to enhance the value of the products generated from anaerobic digesters to improve economics...

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.