Monday, July 9, 2018

Food Waste Recycling

Food waste recycling is the process of diverting food that would otherwise be sent to landfills to either compost facilities or anaerobic digesters.

“Anaerobic digestion occurs naturally, in the absence of oxygen, as bacteria breaks down organic materials and produces biogas, which can then be used as an energy source.”

Food waste recycling is good for the environment.
“Beyond keeping materials out of the landfill, food waste recycling helps control methane production and returns nutrients to the environment.

Using compost for agricultural crops is proven to promote higher yields and increase moisture retention (thereby reducing the amount of water needed to raise a crop).
Compost also suppresses plant diseases, reduces pests, and helps remove solids, oil, grease, heavy metals, and other harmful substances from storm water runoff.”

Easily Biodegradable
“Food waste is highly biodegradable and has a much higher volatile solids destruction rate (86-90%) than biosolids. This means that even though additional material is added to the digesters, the end residual will only increase by a small amount.

Renewable Energy Generation
Arguably, the most important reason that food waste should be anaerobically digested is for capturing the energy content. Unlike biosolids and animal manures, post consumer food scraps have had no means of prior energy capture. 


In fact, in a study done by East Bay Municipal Utility District it was revealed that food waste has up to three times as much energy potential as biosolids.

Cattle manure= 25m³ gas/ton
Biosolids= 120 m³ gas/ton
Food waste= 376 m³ gas/ton


As energy prices continue to climb and our nation looks towards renewable energy generation and energy independence, capturing the energy from food waste becomes more important.

When facilities start digesting food waste, the increased energy production allows them to offset the amount of energy they are using and potentially sell excess energy back to the grid.”

  • “Nearly half of the food in the U.S. goes to waste, which equates to approximately 3,000 pounds per second.
  • Only about 5% of food is diverted from landfills.
  • Of the waste the average person creates each day, 20-30% of it is food waste.”
Whether we divert food waste to personal compost heaps, compost facilities or programs that utilize anaerobic digesters, keeping it out of landfills should be our first priority. Food waste has far too much energy potential to let it go to waste.

For more information on recycling visit www.wasteawaygroup.com.

roadrunnerwm.com
northstarrecycling.com
epa.gov

2 comments:

  1. Wow...this was really interesting!!!

    Greetings! Very helpful advice within this post! It is the little changes which will make the greatest changes. Thanks for sharing!

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