Integration of biogas derived from dark fermentation and anaerobic digestion of biowaste to enhance methanol production by methanotrophs

Copyright © 2022 Elsevier Ltd. All rights reserved..

Biowaste-derived sugars or greenhouse gases, such as methane (CH4) and carbon dioxide (CO2), can be used to generate eco-friendly biofuels, such as hydrogen (H2) or methanol. In the present study, enzyme-based rice straw (RS) hydrolysate was used to produce dark-fermentative (DF) biogas (H2 and CO2), which was subsequently integrated with biogas (CH4 and CO2) derived from anaerobic digestion (AD) to generate methanol via methanotrophs. First, DF of RS hydrolysate yielded 2.82 mol of H2/mol of hexose. Second, the integration of biogas derived from DF and AD in the presence of CH4 vectors yielded 13.8 mmol/L of methanol via methanotrophs. Moreover, under the repeated batch mode, 64.6 mmol/L of methanol was produced. This is the first report on the integration of biogas derived from AD and DF of biowaste to produce biomethanol. These findings may facilitate the development of a sustainable biowaste-based circular economy for producing biofuels.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:369

Enthalten in:

Bioresource technology - 369(2023) vom: 15. Feb., Seite 128427

Sprache:

Englisch

Beteiligte Personen:

Patel, Sanjay K S [VerfasserIn]
Kalia, Vipin C [VerfasserIn]
Lee, Jung-Kul [VerfasserIn]

Links:

Volltext

Themen:

142M471B3J
Biofuels
Biohydrogen
Biomethanol
Biowaste
Carbon Dioxide
Co-culture
Journal Article
Methane
Methanol
OP0UW79H66
Y4S76JWI15

Anmerkungen:

Date Completed 05.01.2023

Date Revised 11.01.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.biortech.2022.128427

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM349829748