The Biodigester process

The Benefits of The Biodigester

Taking care of
our planet

Help reduce excess food waste - by using your waste to produce a clean Biogas and fertilizer. Reduce greenhouse gas emissions by producing your own green energy source.

Liquid fertilizer

Use the organic fertilizer directly to your garden to increase yield production, or share with nearby farmers to encourage community farming.

Save money

Generating and consuming your own biogas in a cooking stove, water heater, or even an electric-powered generator will dramatically reduce your monthly bills.

What can be fed to the Biodigester?

Can be digested

Fruit and vegetables, including more fibrous items such as cabbages, broccoli, and onions.
Egg shells.
Animal manure that is free of stone, straw, and soil, even dog or cat waste (without sand).
Rotten or moldy food.
Bread and dairy products.
Small nuts and seeds, such as almonds.
Meat and small fish bones.
Grease and fat.
Human waste & toliet papper

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Cannot be digested

Large seeds from certain fruit and vegetables, such as avocado or peach.
Hard husks of certain fruit and vegetables, such as coconut husks.
Hard bones, including large fish bones.
Shells, such as oysters/mussels.
Fur, coffee grounds, garden clippings, sawdust, wood chips, straw, chewing gum, nail clippings, lint, and hair.
Cardboard & papers.
Other nonorganic waste such as plastic, aluminum, bleach, etc.
Boiling or Frozen waste, The addition of frozen or boiling waste will severely degrade the operation of the microbes within the equipment.

DON’T FEED THE BIODIGESTER TOO

MUCH OF THESE THINGS

Chicken feces (up to 50%).
Fats, oils, grease (up to 25-30%).
Citrus fruit (up to 2 peels a day).
Roots, stalks.
Compostable diapers (1 per day, depending on brand).

Climate

A suitable climate is anywhere where the average day and night temperature is at least 20C/68F.

In places the average temperature drops below that it is recommended to take the following measures :

Insulate the biodigester from the cold ground (with a suitable insulation floor).
Place inside a greenhouse or build one to protect the biodigester (with ventilation).
Add a water heater.
If you still have some flammable gas production, reduce to half the feeding amount.

***Remember: following the above suggestions does not guarantee that your biodigester will produce gas as usual in colder climates.

An example of the way our client chose and implemented to isolate the Biodigester from the cold ground, using local isolation material.

1. Spreading insulating material on the ground in the desired location, in this case - plastic egg shaped wrap insulation sheets. Adding boards with at least 10 cm high in the perimeter.