Reusing colored industrial wastewaters in a photofermentation for enhancing biohydrogen production by using ultrasound stimulated Rhodobacter sphaeroides

Pretty Mori Budiman, Ta Yeong Wu, Ramakrishnan Nagasundara Ramanan, Jamaliah Md Jahim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

One-time ultrasonication pre-treatment of Rhodobacter sphaeroides was evaluated for improving biohydrogen production via photofermentation. Batch experiments were performed by varying ultrasonication amplitude (15, 30, and 45%) and duration (5, 10, and 15 min) using combined effluents from palm oil as well as pulp and paper mill as a single substrate. Experimental data showed that ultrasonication at amplitude 30% for 10 min (256.33 J/mL) achieved the highest biohydrogen yield of 9.982 mL H2/mLmedium with 5.125% of light efficiency. A maximum CODtotal removal of 44.7% was also obtained. However, when higher ultrasonication energy inputs (>256.33 J/mL) were transmitted to the cells, biohydrogen production did not improve further. In fact, 20.6% decrease of biohydrogen yield (as compared to the highest biohydrogen yield) was observed using the most intense ultrasonicated inoculum (472.59 J/mL). Field emission scanning electron microscope images revealed the occurrence of cell damages and biomass losses if ultrasonication at 472.59 J/mL was used. The present results suggested that moderate ultrasonication pre-treatment was an effective technique to improve biohydrogen production performances of R. sphaeroides.

Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalEnvironmental Science and Pollution Research
DOIs
Publication statusAccepted/In press - 13 Apr 2017

Fingerprint

Rhodobacter sphaeroides
Waste Water
Wastewater
Ultrasonics
Oil and Gas Fields
wastewater
Biomass
Palm oil
Paper and pulp mills
Electrons
Light
Field emission
Effluents
mill
Electron microscopes
Cells
effluent
Scanning
substrate
electron

Keywords

  • Bioenergy
  • Palm oil mill effluent
  • Photofermentation
  • Pulp and paper mill effluent
  • Ultrasonication
  • Wastewater reuse

ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Reusing colored industrial wastewaters in a photofermentation for enhancing biohydrogen production by using ultrasound stimulated Rhodobacter sphaeroides. / Budiman, Pretty Mori; Wu, Ta Yeong; Ramanan, Ramakrishnan Nagasundara; Md Jahim, Jamaliah.

In: Environmental Science and Pollution Research, 13.04.2017, p. 1-12.

Research output: Contribution to journalArticle

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