The variety of biofuel processing methods and equipment is remarkable, allowing us to transform energy feedstocks into useful solid fuels, liquid fuels, gases, electricity, heat or mechanical work. One of the main barriers to a successful biomass energy industry is the simple fact that most raw biomass is not immediately useful as an energy source. Biofuel crops must be processed in one way or another before they can be a valuable source of energy.
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- Anaerobic Digesters and Biogas Safety
- Biogas Utilization and Cleanup
- Economics of Anaerobic Digesters for Processing Animal Manure
- Environmental Benefits of Anaerobic Digestion
- Feedstocks for Biogas
- Introduction to Biogas and Anaerobic Digestion
- Pathogen Reduction in Anaerobic Digestion of Manure
- Processing Biomass Into Biogas
- Types of Anaerobic Digesters
- Transformation and Agronomic Use of Nutrients From Digester Effluent
Anaerobic Digestion of Animal Manures: Understanding the Basic Processes…
Biogas generated from anaerobic digestion processes is a clean and environmentally friendly renewable fuel. But it is important to clean, or upgrade, biogas before using it to increase its heating value and to make it useable in some gas appliances such as engines and boilers.
While most large farms use their biogas for heat and power, it is worthwhile to consider all the options before deciding which path to take, including direct sale of biogas to an …
Anaerobic digestion generates a wide range of byproducts that farmers can use in their farming operations or sell. Beyond biogas used to generate electricity or as fuel, and liquids used for fertilizer or soil amendments, there are solid byproducts, which have a wide range of applications.
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The manure handling system of any farm is made up of many different components, each with a different function and purpose. An anaerobic digester, although only one component of the system, can greatly improve the environmental performance and efficiency of the overall system. The main effect of anaerobic digestion is conversion of organic matter to biogas. This conversion has many potentially beneficial environmental and management side effects.
By removing organic matter, the digester reduces the organic matter-loading and …
Benefits of Anaerobic Digestion of Manure in Reducing Pathogens
Manure is a biologically active material that hosts and supports many microorganisms and thus can seldom be considered “pathogen free.” Certain manure handling techniques and methods, however, can limit the production and multiplication of such pathogens. Common sense must be used when making manure handling decisions. Pathogens are microbes such as bacteria, viruses, protozoa, and other organisms that cause disease. These pathogens persist commonly in animal manures. For more information …
Glycerol (also known as glycerin) is a major byproduct in the biodiesel manufacturing process. In general, for every 100 pounds of biodiesel produced, approximately 10 pounds of crude glycerol are created. As the biodiesel industry is rapidly expanding, a glut of crude glycerol is being created. Because this glycerol is expensive to purify for use in the food, pharmaceutical, or cosmetics industries, biodiesel producers must seek alternative methods for its disposal. Various methods for disposal and utilization of this …
Most farm operations currently depend on fossil fuel use. Photo: Jeff Piper.
Learn many strategies for improving energy efficiency, and the cheapest and easiest way to reduce energy costs on the farm.
Table of Contents
- The Growing Interest in Energy Conservation and Generation on the Farm
- Energy Conservation and Efficiency
- Renewable Energy
The Growing Interest in Energy Conservation and Generation on the Farm
In the last few years, interest in alternative energy and energy conservation has skyrocketed due to unstable …
Find videos on feedstocks at the Farm Energy Media archive.
Find images of feedstocks at the Farm Energy Media archive.
Anaerobic digestion of manure and other feedstocks produces biogas which can be burner to make energy on farms. Learn how to evaluate a feedstock and which ones to exclude for biogas production.
|Anaerobic Digester in Charlotte, VT. Photo: Caragh Fitzgerald, University of Maine.|