• Sonal Tandel
• Tilak Tandel

Due to low biogas outputs, anaerobic digestion of bio sludge has yet to be adopted in pulp mills. Biogas yields have been improved by enzymatic pre-treatment of bio sludge, although the results have been mixed. Previous research has failed to account for the COD contribution from enzyme solutions, which is a major flaw. The purpose of this research was to look into the effects of enzymatic pre-treatment on the anaerobic digestibility of pulp mill bio sludge. Four of the six enzymes studied improved bio sludge anaerobic digestibility. With protease from B. licheniformis, a maximum improvement of 26% in biogas output was reported at the conclusion of the BMP. There was no link between enzyme activity on conventional substrates and/or bio sludge and the influence of enzymes on the environment. Yield of biogas Enzymes have the potential to improve bio sludge anaerobic digestibility, but further research is needed to determine ideal conditions and potential synergies with other pre-treatments.

Anaerobic digestion, Bio-sludge, Enzymes, Pre-treatment ,Biogas

"SOLID STATE FERMENTATION PRODUCTION OF FUNGAL CELLULASE ENZYMES AND THEIR APPLICATION IN BIOETHANOL PRODUCTION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 3, page no.a452-a455, March-2022, Available :http://www.jetir.org/papers/JETIR2203054.pdf

"SOLID STATE FERMENTATION PRODUCTION OF FUNGAL CELLULASE ENZYMES AND THEIR APPLICATION IN BIOETHANOL PRODUCTION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 3, page no. ppa452-a455, March-2022, Available at : http://www.jetir.org/papers/JETIR2203054.pdf