Anaerobic Digestion for Food Waste

Anaerobic Digestion for Food Waste

Anaerobic Digestion

Anaerobic DigestionAnaerobic digestion is a biological process that generates a gas, mainly consisting of methane (CH4) and carbon dioxide (CO2). It is also called biogas. This biological process occurs in the absence of oxygen and organic waste is used; this includes food waste, livestock manure, etc.

Anaerobic processes naturally take place in certain conditions and environments, but these days, with advancements in scientific technology, the process can be reproduced in a controlled environment in an anaerobic digester.

The anaerobic digestion process consists of the following three steps:

  • During the first step, decomposition of the organic waste takes place which breaks down the organic material into small fragments.
  • The decomposed matter is then converted into organic acids.
  • Finally, these organic fluids are converted into methane gas, which is then ready for usage as a fuel.

Digestate vs. Compost

Digestate and compost are quite different, even though they have similar properties. Compost is produced as a result of aerobic decomposition in which oxygen is included, while digestate is produced as a result of anaerobic digestion, meaning no oxygen is involved.

Benefits of Anaerobic Digestion

Usage of MethaneUsage of Methane

Anaerobic Digestion basically turns food waste into a sustainable resource. It helps in reducing the emission of greenhouse gases such as methane into the atmosphere, protecting the ozone layer from further harm. By not sending it to the landfill and instead sending it to anaerobic digesters, we can recycle food waste and make use of it to make fuel and fertilizers.

Odor and Anaerobic Digestion

When organic waste decomposes, it produces unpleasant odors. One huge benefit of Anaerobic Digestion is that it reduces the unpleasant odors as the waste and digestate passes through closed vessels and vehicles during food waste hauling. The anaerobic digestion process happens in a sealed tank which significantly reduces the odor.

Energy from Food Waste

The amount of energy produced as a result of Anaerobic Digestion varies on the basis of the material that is digested, the particular type of digester, and the process that is used. Anaerobic Digestion of 1 ton of food waste can generate about 300 kWh of energy.

Anaerobic Digesters in Pennsylvania

An anaerobic digester comprises of an air tight container that is free of oxygen. Organic food waste is then entered into that container. A natural process occurs to this waste and produces biogas- consisting primarily of methane and carbon dioxide. It also produces a waste matter called digestate with the help of microbes.

Recycling food waste for the betterment of the atmosphere has now become easier with food recycling companies in Pennsylvania in the state. Energy Recyclers in Pennsylvania visualize a future where Pennsylvania’s financial system is strong and is powered by sustainable, environment friendly energy. It is proficiently run by Ideal Group Inc.

Energy Recyclers aim to make sure that each person in the state has complete access to clean tap water, healthy air and numerous fresh water streams and lakes for swimming and fishing without worrying about their health.

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