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

doi:10.1016/j.biortech.2019.121624

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

Department of Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

41 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 language	English
Article number	121624
Journal	Bioresource technology
Volume	289
DOIs	https://doi.org/10.1016/j.biortech.2019.121624
Publication status	Published - 2019 Oct

Bibliographical note

Funding Information:
Authors thank Department of Biotechnology, India for financial support for this work ( BT/PR13124/GBD/27/192/2009 ) under the scheme Rapid Grant for Young Investigator (RGYI).

Publisher Copyright:
© 2019 Elsevier Ltd

All Science Journal Classification (ASJC) codes

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2019.121624

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

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.",

author = "S. Kavitha and M. Schikaran and {Yukesh Kannah}, R. and M. Gunasekaran and Gopalakrishnan Kumar and {Rajesh Banu}, J.",

note = "Funding Information: Authors thank Department of Biotechnology, India for financial support for this work ( BT/PR13124/GBD/27/192/2009 ) under the scheme Rapid Grant for Young Investigator (RGYI). Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

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

AU - Kavitha, S.

AU - Schikaran, M.

AU - Yukesh Kannah, R.

AU - Gunasekaran, M.

AU - Kumar, Gopalakrishnan

AU - Rajesh Banu, J.

N1 - Funding Information: Authors thank Department of Biotechnology, India for financial support for this work ( BT/PR13124/GBD/27/192/2009 ) under the scheme Rapid Grant for Young Investigator (RGYI). Publisher Copyright: © 2019 Elsevier Ltd

PY - 2019/10

Y1 - 2019/10

N2 - 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.

AB - 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

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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