What is true for the raw vegetables is also true for the high fiber food waste, but to a larger extent. Raw Lettuce, cauliflower, celery, Carrots, beets, broccoli, and other high-fiber product will take days – weeks to digest.
When the predominated waste is high fibers the process takes longer and when filled every day of the week a buildup will happen. This needs to be taken into consideration when advising the BMD machine. Depending on the % of fiber waste in the waste stream it can be that the client needs a machine that is 4-5 times bigger then according to the total waste amount per day.
Raw fiber products need to be cut in small please – the smaller the better. This way the enzymes can attack this difficult to digesting products better/quicker. When the fibers are tangled around the blades, the digestion process will even take longer.
When there is still cooked and staple food in the high fiber waste, it helps with the digestion process. Because there is more moisture in the mix the enzymes can travel easier to the fiber waste.
It might be needed to add a shredder unit into the facility – The picture next to this is an explanation of the buildup of the fiber material when filling the BMD machine with 50 kilos of fiber food waste. As you can see the buildup is significant and you need to use a 3-4 x bigger device to get rid of the fiber food waste. We are working on special enzyme mixes that can handle fiber food waste more quickly.
Another option can be, not to use one -but two BMD machines so the waste can be separated into two machines.
It’s best to ask for our support in deciding what machine is needed for the specific client, when there is only fiber waste. Like a raw vegetable production facility. We might need to develop an enzyme mix, special for that waste stream.