Effect of low intensity sonic mediated fragmentation of anaerobic granules on biosurfactant secreting bacterial pretreatment

Energy and mass balance analysis

S. Kavitha, R. Yukesh Kannah, M. Gunasekaran, Dinh Duc Nguyen, Ala Al-Muhtaseb, Jeong Hoon Park, J. Rajesh Banu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this study, fragmentation of anaerobic granules (AG) was carried out by low intensity sonification (LIS) to release its extracellular polymeric substance (EPS). The experimental outcome of the study shows that 30 s treatment time and 60 W sonic power was effective for fragmentation of AG. The fragmented anaerobic granules were further subjected to pretreatment by biosurfactant secreting bacteria. Bacterial pretreatment achieves a maximum biogranules lysis of 20.3% and biosolids reduction of 17.1% for fragmented anaerobic granules bacterial pretreatment (FAG-BP). Whereas for bacterial pretreatment (BP) alone, it achieves 10.9% and 8.6% of biogranules lysis and biosolids reduction respectively. Exponential first order kinetic model of biomethane production data revealed greater biomethane production for FAG-BP (0.247 g COD/g COD) than BP (0.131 g COD/g COD). Cost analysis of FAG mediated bacterial pretreatment results in a net profit of 48.606 USD/Ton.

Original languageEnglish
Pages (from-to)156-165
Number of pages10
JournalBioresource Technology
Volume279
DOIs
Publication statusPublished - May 1 2019

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Biosolids
lysis
biosolid
energy balance
mass balance
fragmentation
cost analysis
Profitability
Bacteria
kinetics
bacterium
Kinetics
Costs
analysis
effect
profit

Keywords

  • Anaerobic granules
  • Bacterial pretreatment
  • Biomethanogenesis
  • Mass and energy balance analysis
  • Sonification

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

Cite this

Effect of low intensity sonic mediated fragmentation of anaerobic granules on biosurfactant secreting bacterial pretreatment : Energy and mass balance analysis. / Kavitha, S.; Kannah, R. Yukesh; Gunasekaran, M.; Nguyen, Dinh Duc; Al-Muhtaseb, Ala; Park, Jeong Hoon; Banu, J. Rajesh.

In: Bioresource Technology, Vol. 279, 01.05.2019, p. 156-165.

Research output: Contribution to journalArticle

Kavitha, S. ; Kannah, R. Yukesh ; Gunasekaran, M. ; Nguyen, Dinh Duc ; Al-Muhtaseb, Ala ; Park, Jeong Hoon ; Banu, J. Rajesh. / Effect of low intensity sonic mediated fragmentation of anaerobic granules on biosurfactant secreting bacterial pretreatment : Energy and mass balance analysis. In: Bioresource Technology. 2019 ; Vol. 279. pp. 156-165.
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