Higher energy conversion efficiency in anaerobic degradation of bioplastic by response surface methodology

Abstract Anaerobic degradation of bioplastics is a controversial challenge. Size reduction must for while it requires significant amount energy, which lowers the overall energy efficiency system. On other hand, inoculum to substrate ratio has interaction effects in process. The present work aimed optimize these two parameters improvement through response surface methodology. central composite design procedure was implied. levels experimental variables were 0.72, 4.3, 7.87 mm particle size and 2, 3, 4 ratio. input variable on biomethane yield estimated, discussed, then also optimized using genetic algorithm. Moreover, balance analysis done samples. highest found at 4.3 mm 4, corresponds 23% efficiency. Despite high consumption less than 1 mm, more not observed. Inoculum showed effect size.