Effect of Phosphogypsum Addition on Methane Yield in Biogas and Digestate Properties During Anaerobic Digestion

The study discussed the use of phosphogypsum by-product waste in anaerobic digestion processes. Besides production biogas from plant substrate with addition phosphogypsum, focus was placed on enrichment digestate as a mineral additive to increase concentration valuable macro-and microelements. component composition obtained digestates analyzed, and opportunities for additional research were determined. Research additives is considered promising. Phosphogypsum favors quality an organic fertilizer higher content components. Furthermore, contribution achieve not apparent, but impact biogas; however, there opportunity consider potential benefits using another type process.