Next Article in Journal
Formation and Dissociation of Methane Hydrates from Seawater in Consolidated Sand: Mimicking Methane Hydrate Dynamics beneath the Seafloor
Next Article in Special Issue
Performance Analysis of an Integrated Fixed Bed Gasifier Model for Different Biomass Feedstocks
Previous Article in Journal
On the Efficacy of PCM to Shave Peak Temperature of Crystalline Photovoltaic Panels: An FDM Model and Field Validation
Previous Article in Special Issue
Co-Combustion of Animal Waste in a Commercial Waste-to-Energy BFB Boiler
Article Menu

Export Article

Open AccessArticle
Energies 2013, 6(12), 6211-6224; doi:10.3390/en6126211

Rapid Biogas Production by Compact Multi-Layer Membrane Bioreactor: Efficiency of Synthetic Polymeric Membranes

1
School of Engineering, University of Borås, 50190 Borås, Sweden
2
Department of Chemical and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
3
Department of Chemical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1, Canada
*
Author to whom correspondence should be addressed.
Received: 26 September 2013 / Revised: 15 November 2013 / Accepted: 21 November 2013 / Published: 28 November 2013
(This article belongs to the Special Issue Biomass and Biofuels 2013)
View Full-Text   |   Download PDF [771 KB, uploaded 17 March 2015]   |  

Abstract

Entrapment of methane-producing microorganisms between semi-permeable synthetic membranes in a multi-layer membrane bioreactor (MMBR) was studied and compared to the digestion capacity of a free-cell digester, using a hydraulic retention time of one day and organic loading rates (OLR) of 3.08, 6.16, and 8.16 g COD/L·day. The reactor was designed to retain bacterial cells with uprising plug flow through a narrow tunnel between membrane layers, in order to acquire maximal mass transfer in a compact bioreactor. Membranes of hydrophobic polyamide 46 (PA) and hydroxyethylated polyamide 46 (HPA) as well as a commercial membrane of polyvinylidene fluoride (PVDF) were examined. While the bacteria in the free-cell digester were washed out, the membrane bioreactor succeeded in retaining them. Cross-flow of the liquid through the membrane surface and diffusion of the substrate through the membranes, using no extra driving force, allowed the bacteria to receive nutrients and to produce biogas. However, the choice of membrane type was crucial. Synthesized hydrophobic PA membrane was not effective for this purpose, producing 50–121 mL biogas/day, while developed HPA membrane and the reference PVDF were able to transfer the nutrients and metabolites while retaining the cells, producing 1102–1633 and 1016–1960 mL biogas/day, respectively. View Full-Text
Keywords: membrane bioreactor; biogas; synthetic membrane; methane; anaerobic digestion; polyamide; PVDF; cell entrapment membrane bioreactor; biogas; synthetic membrane; methane; anaerobic digestion; polyamide; PVDF; cell entrapment
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Youngsukkasem, S.; Barghi, H.; Rakshit, S.K.; Taherzadeh, M.J. Rapid Biogas Production by Compact Multi-Layer Membrane Bioreactor: Efficiency of Synthetic Polymeric Membranes. Energies 2013, 6, 6211-6224.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top