A digestate conversion plant has been designed. Basically, the concept of the design is to separate liquid digestate from the solid and gently dry it. The liquid fertilizer will be applied to the dry compost in a controlled manner to augment it or it is directly applied to farm lands in a controlled manner that leaching is minimized.

Samples of digestate were collected from the biogas fixed dome of The National Centre For Energy and Environment (NCEE BENIN) and the following analysis was carried out;

• Proximate analysis
• Microbial analysis
• Microbial count
• Pathogenicity
• Identification and isolation of microorganisms
• Determination of heavy metals
• Nutrient profile