Biogas production from residual marine macroalgae biomass: Kinetic modelling approach

• Type: Article in International Scientific Journal
• Date: 2022

Authors

Pardilhó S. (Author) FEUP; Pires, JCM (Author) FEUP; Rui Boaventura (Author) FEUP; Manuel Fonseca Almeida (Author) FEUP; Joana Dias (Author) FEUP

Journal

Title: Bioresource Technology

Vol. 359

ISSN: 0960-8524

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Associated Projects

LEPABE - Projeto Estratégico do LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

ALiCE - ALiCE - Laboratório Associado em Engenharia Química

Other information

Authenticus ID: P-00W-SSG

DOI: 10.1016/j.biortech.2022.127473

Abstract (EN): Modelling the conversion of residual biomass to renewable fuels is of high relevance to promote the development of effective technological solutions. The present study compares the performance of five different kinetic models (pseudo-first-order kinetics, logistics, modified Gompertz, double-Gompertz, and multi-Gompertz) to describe the cumulative methane production during a low-solids anaerobic digestion of marine macroalgae waste. Different substrate concentrations were evaluated (0.9, 1.7 and 2.5% TS) with the best methane yield (105.2 mL CH4.g VS¿1) being obtained at the highest amount of biomass. All models fitted the experimental data with R2 > 0.988. The innovative multi-Gompertz model herein proposed led to the best performance indexes for all tested experimental conditions, allowing to predict methane yields more accurately when the digestion occurs in two or more steps, as it was the case with marine macroalgae waste.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6