What is Renewable Fertiliser ?
Anaerobic digesters provide Fermented biomass or manure
(referred to as digestate solids, fiber or biofiber) contained in the effluent
(digestate) of opportunities for value-added by-products - Organic fertilizer
and fuel pellets.
Anaerobic digestion represents the key to propose a
sustainable approach in producing renewable fertilizers with the modification
that occurs to waste during a biological process, leaving a substrate
(digestate) with high amending and fertilizing properties.
Fermented Digestate is full of nutrients, including
nitrogen, phosphorous, potassium and sulfur. During the anaerobic digestion
process, nutrients contained in the feedstock are mineralized. Mineralized
nutrients are easily used by a crop. Digestate solids contain higher
concentrations of plant-available nitrogen and phosphorus compared to
as-excreted manure used as compost. The high carbon content of digestate solids
adds organic matter to the soil and improves the water holding capacity of the
soil. Digestate solids as a fertilizer
source can be used “as separated” (wet), blended with other materials and
composted or dried and pelletized.
Anaerobic digesters-based Bio-fertilizers are one of the
best modern agricultural instruments to turn waste into functional types.
Bio-fertilizers are environmentally friendly fertilizers that not only avoid
harm to natural sources, but often help clean up nature from precipitated
chemical fertilizers to some degree that are not eco-friendly and can destroy
soil fertility in the long term.