Particle size variations of activated carbon on biofilm formation in thermophilic biohydrogen production from palm oil mill effluent

Nur Syakina Jamali, Jamaliah Md Jahim, Wan Isahak Wan Nor Roslam, Peer Mohamed Abdul

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

In this study, we examined the formation of thermophilic microbial biofilm by self-attachment on microbial carrier of granular activated carbon (GAC) in five different micro-pore volumes 0.31, 0.41, 0.44, 0.48, and 0.50cm3/g. It was found that the highest hydrogen production rate of 100.8±3.7mmol H2/l.d and yield of 1.01±0.07mol H2/mol sugar were obtained at 0.44cm3/g volume size of GAC. The cellulolytic activity of attached-biofilm was further investigated using POME as a feedstock. The results showed that in all diluted POME substrate, the total sugar consumed by the microbes was found higher than that the amount of soluble monomeric sugar present in the POME medium. It is believe that the microbial biofilm was able to hydrolyse polymeric sugar of cellulosic fibre in the POME by performing enzymatic hydrolysis into simple monomeric sugar. The isolated biofilm bacteria that subjected to 16S rRNA gene analysis presented 99% high homology to the species of Thermoanaerobacterium thermosaccharolyticum which were guaranteed to perform a cellulosic degradation activity.

Original languageEnglish
JournalEnergy Conversion and Management
DOIs
Publication statusAccepted/In press - 2016

Fingerprint

Palm oil
Biofilms
Sugars
Activated carbon
Effluents
Particle size
Enzymatic hydrolysis
Hydrogen production
Feedstocks
Bacteria
Genes
Degradation
Fibers
Substrates

Keywords

  • Attached-biofilm
  • Granular activated carbon
  • POME fermentation
  • Renewable energy
  • Thermophilic biohydrogen production

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

Cite this

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title = "Particle size variations of activated carbon on biofilm formation in thermophilic biohydrogen production from palm oil mill effluent",
abstract = "In this study, we examined the formation of thermophilic microbial biofilm by self-attachment on microbial carrier of granular activated carbon (GAC) in five different micro-pore volumes 0.31, 0.41, 0.44, 0.48, and 0.50cm3/g. It was found that the highest hydrogen production rate of 100.8±3.7mmol H2/l.d and yield of 1.01±0.07mol H2/mol sugar were obtained at 0.44cm3/g volume size of GAC. The cellulolytic activity of attached-biofilm was further investigated using POME as a feedstock. The results showed that in all diluted POME substrate, the total sugar consumed by the microbes was found higher than that the amount of soluble monomeric sugar present in the POME medium. It is believe that the microbial biofilm was able to hydrolyse polymeric sugar of cellulosic fibre in the POME by performing enzymatic hydrolysis into simple monomeric sugar. The isolated biofilm bacteria that subjected to 16S rRNA gene analysis presented 99{\%} high homology to the species of Thermoanaerobacterium thermosaccharolyticum which were guaranteed to perform a cellulosic degradation activity.",
keywords = "Attached-biofilm, Granular activated carbon, POME fermentation, Renewable energy, Thermophilic biohydrogen production",
author = "Jamali, {Nur Syakina} and {Md Jahim}, Jamaliah and {Wan Nor Roslam}, {Wan Isahak} and Abdul, {Peer Mohamed}",
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AU - Jamali, Nur Syakina

AU - Md Jahim, Jamaliah

AU - Wan Nor Roslam, Wan Isahak

AU - Abdul, Peer Mohamed

PY - 2016

Y1 - 2016

N2 - In this study, we examined the formation of thermophilic microbial biofilm by self-attachment on microbial carrier of granular activated carbon (GAC) in five different micro-pore volumes 0.31, 0.41, 0.44, 0.48, and 0.50cm3/g. It was found that the highest hydrogen production rate of 100.8±3.7mmol H2/l.d and yield of 1.01±0.07mol H2/mol sugar were obtained at 0.44cm3/g volume size of GAC. The cellulolytic activity of attached-biofilm was further investigated using POME as a feedstock. The results showed that in all diluted POME substrate, the total sugar consumed by the microbes was found higher than that the amount of soluble monomeric sugar present in the POME medium. It is believe that the microbial biofilm was able to hydrolyse polymeric sugar of cellulosic fibre in the POME by performing enzymatic hydrolysis into simple monomeric sugar. The isolated biofilm bacteria that subjected to 16S rRNA gene analysis presented 99% high homology to the species of Thermoanaerobacterium thermosaccharolyticum which were guaranteed to perform a cellulosic degradation activity.

AB - In this study, we examined the formation of thermophilic microbial biofilm by self-attachment on microbial carrier of granular activated carbon (GAC) in five different micro-pore volumes 0.31, 0.41, 0.44, 0.48, and 0.50cm3/g. It was found that the highest hydrogen production rate of 100.8±3.7mmol H2/l.d and yield of 1.01±0.07mol H2/mol sugar were obtained at 0.44cm3/g volume size of GAC. The cellulolytic activity of attached-biofilm was further investigated using POME as a feedstock. The results showed that in all diluted POME substrate, the total sugar consumed by the microbes was found higher than that the amount of soluble monomeric sugar present in the POME medium. It is believe that the microbial biofilm was able to hydrolyse polymeric sugar of cellulosic fibre in the POME by performing enzymatic hydrolysis into simple monomeric sugar. The isolated biofilm bacteria that subjected to 16S rRNA gene analysis presented 99% high homology to the species of Thermoanaerobacterium thermosaccharolyticum which were guaranteed to perform a cellulosic degradation activity.

KW - Attached-biofilm

KW - Granular activated carbon

KW - POME fermentation

KW - Renewable energy

KW - Thermophilic biohydrogen production

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