Productivity Enhancement Using Kinetic Modeling of Bio-digestion Process-A Review

Bio-digesters convert organic waste (agricultural and food waste, animal or human manure, and other organic waste), into energy (in the form of biogas or electricity). An added benefit to bio-digestion is a leftover high-grade organic fertilizer. Models of the Bio digestion process do exist, but either relies on simple algebraic equations instead of biochemical reactions, or considers so many external parameters that they become overly complicated and require much input information and computation time. This work provides the review of features and limitations of different kinetic models of bio digestion process to enhancement on productivity.