Nanoparticle induced biological disintegration: A new phase separated pretreatment strategy on microalgal biomass for profitable biomethane recovery

S. Kavitha, M. Schikaran, R. Yukesh Kannah, M. Gunasekaran, Gopalakrishnan Kumar, J. Rajesh Banu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This study involves the application of new phase separated biological pretreatment (PSBP) strategy on microalgal biomass using the nickel nanoparticle induced cellulase secreting bacterial disintegration. Particularly, interest was focussed on cell wall weakening (CWW) of microalgae biomass besides the cell disintegration (CD) and release of organics. During CWW, protein, carbohydrate, cellulose, hemicellulose and DNA were used as evaluation indexes. Similarly, during CD, soluble chemical oxygen demand was used as evaluation index to assess the disintegration effect. A higher CWW was achieved at nickel nanoparticle (Np) dosage of 0.004 g/g SS. During CD, a clear demarcation in biomass solubilisation was achieved by PSBP (36%) than the sole biological pretreatment –BP (24%). The biomethanogenesis test results showed that enhanced methane production of 411 mL/g COD was achieved by PSBP than BP. Energy analysis showed that a higher net energy production of 6.467 GJ/d was achieved by PSBP.

Original languageEnglish
Article number121624
JournalBioresource technology
Volume289
DOIs
Publication statusPublished - 2019 Oct

Fingerprint

Disintegration
Biomass
Nanoparticles
Recovery
nickel
biomass
Nickel
solubilization
chemical oxygen demand
cellulose
carbohydrate
methane
Cellulase
Chemical oxygen demand
Methane
DNA
Carbohydrates
protein
Cellulose
Cells

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "This study involves the application of new phase separated biological pretreatment (PSBP) strategy on microalgal biomass using the nickel nanoparticle induced cellulase secreting bacterial disintegration. Particularly, interest was focussed on cell wall weakening (CWW) of microalgae biomass besides the cell disintegration (CD) and release of organics. During CWW, protein, carbohydrate, cellulose, hemicellulose and DNA were used as evaluation indexes. Similarly, during CD, soluble chemical oxygen demand was used as evaluation index to assess the disintegration effect. A higher CWW was achieved at nickel nanoparticle (Np) dosage of 0.004 g/g SS. During CD, a clear demarcation in biomass solubilisation was achieved by PSBP (36{\%}) than the sole biological pretreatment –BP (24{\%}). The biomethanogenesis test results showed that enhanced methane production of 411 mL/g COD was achieved by PSBP than BP. Energy analysis showed that a higher net energy production of 6.467 GJ/d was achieved by PSBP.",
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Nanoparticle induced biological disintegration : A new phase separated pretreatment strategy on microalgal biomass for profitable biomethane recovery. / Kavitha, S.; Schikaran, M.; Yukesh Kannah, R.; Gunasekaran, M.; Kumar, Gopalakrishnan; Rajesh Banu, J.

In: Bioresource technology, Vol. 289, 121624, 10.2019.

Research output: Contribution to journalArticle

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T2 - A new phase separated pretreatment strategy on microalgal biomass for profitable biomethane recovery

AU - Kavitha, S.

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AU - Yukesh Kannah, R.

AU - Gunasekaran, M.

AU - Kumar, Gopalakrishnan

AU - Rajesh Banu, J.

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