Microbial granules on reactors performance during organic butyrate digestion: clean production

Area of Science:

• Environmental Science
• Biotechnology
• Chemical Engineering

Background:

• Anaerobic degradation of complex organic compounds is crucial for biogas production.
• Biogas production efficiency is influenced by factors like reactor granulation, methanogenesis, and nutrient content.
• Closed anaerobic reactors are increasingly applied to optimize biogas generation and waste treatment.

Purpose of the Study:

• To critically review the anaerobic degradation of butyrate in closed reactors.
• To evaluate the interactions between organic degradation, reactor systems, and microbial granules.
• To identify strategies for improving biogas and methane production.

Main Methods:

• Review of existing literature on closed anaerobic reactor technology.
• Analysis of factors affecting biogas production rates, including granulation and methanogenesis.
• Evaluation of microbial biofilm formation and its impact on methane yield.

Main Results:

• Closed anaerobic reactors accelerate the degradation of volatile fatty acids like butyrate.
• Application of these reactors promotes microbial biofilm formation, increasing methanogen populations.
• Methane production can reach up to 16.5 L CH4 L-1 POME-1 with stable biofilms and established organic loads.

Conclusions:

• Closed anaerobic reactors with stable microbial biofilms significantly improve biogas and methane production.
• The technology allows for monitoring biogas concentration, correlating directly with organic concentrations.
• This approach offers a pathway for enhanced organic butyrate degradation, COD removal, and biogas generation.