BIOGAS AND BIOFUELS
Biogas is a biofuel that naturally forms through the anaerobic decomposition of organic compounds originating from livestock and agro-industrial waste, sewage sludge from wastewater treatment plants, and industrial effluent residues.
Biogas primarily consists of methane (CH4) and carbon dioxide (CO2), along with other gases. It is the only renewable energy source that can be used for electricity, heat, and fuel production, while also contributing to the reduction of greenhouse gas emissions.
Wastewater from digestates is characterized by:
- High organic matter concentration.
- High concentrations of minerals such as N (nitrogen), K (potassium), and P (phosphorus).
- Salt, traces of heavy metals, and biological contaminants (bacteria).
The nutrients it contains can be a valuable fertilizer if they are in the correct composition and volume, and therefore, they should be treated appropriately.
Similar to the petrochemical industry, although to a lesser extent, undesired byproducts are generated.
Vacuum evaporators can be used to treat biomass conversion effluents containing sugars and cellulose, generate easily treatable and manageable solid residues, treat biogas-producing gases, and much more.
Furthermore, the added value offered by these applications could include the reduction of nitrogen, carbon monoxide, digestate volume, water and substance recovery, as well as the reduction of sludge, operational costs, and disposal expenses.