Enhancing biomethanation from dairy waste activated biomass using a novel EGTA mediated microwave disintegration

J. Rajesh Banu; A. Parvathy Eswari; Ganesh Dattatraya Saratale; R. Uma Rani; S. Kaliappan; Ick Tae Yeom

doi:10.1016/j.jenvman.2018.06.079

Enhancing biomethanation from dairy waste activated biomass using a novel EGTA mediated microwave disintegration

J. Rajesh Banu, A. Parvathy Eswari, Ganesh Dattatraya Saratale, R. Uma Rani, S. Kaliappan, Ick Tae Yeom

Department of Food Science & Biotechnology

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

10 Scopus citations

Abstract

A novel approach to explore the impact of calcium specific chelant - Ethylene glycol tetra acetic acid (EGTA) on deflocculation followed by biomass disintegration using microwave (MW) was investigated. In the first phase of the study, the EGTA dosage of 0.012 g/g suspended solids (SS) was found to be optimal for disassociating the biomass. Subsequent disintegration of biomass in microwave (EGTA-MW) yielded a biomass lysis and solids reduction of about 39.7% and 30.5%. EGTA-MW disintegration reduces the amount of specific energy required to disintegrate the biomass from 18,900 kJ/kg TS to 13,500 kJ/kg TS, when compared to control. The impact of EGTA-MW disintegration on anaerobic digestion was also evident from its methane yield (235.3 mL/g VS) which was 36.2% higher than control. An economic assessment of this study provides a net profit of 8.48 €/ton in EGTA-MW and highly endorsed for biomass disintegration.

Original language	English
Pages (from-to)	644-651
Number of pages	8
Journal	Journal of Environmental Management
Volume	223
DOIs	https://doi.org/10.1016/j.jenvman.2018.06.079
State	Published - 1 Oct 2018

Keywords

Biomass lysis
Biomethane production
Deflocculation
EGTA
Waste activated biomass

Access to Document

10.1016/j.jenvman.2018.06.079

Cite this

@article{81a66e96b54b4d8fa30ca77542210538,

title = "Enhancing biomethanation from dairy waste activated biomass using a novel EGTA mediated microwave disintegration",

abstract = "A novel approach to explore the impact of calcium specific chelant - Ethylene glycol tetra acetic acid (EGTA) on deflocculation followed by biomass disintegration using microwave (MW) was investigated. In the first phase of the study, the EGTA dosage of 0.012 g/g suspended solids (SS) was found to be optimal for disassociating the biomass. Subsequent disintegration of biomass in microwave (EGTA-MW) yielded a biomass lysis and solids reduction of about 39.7% and 30.5%. EGTA-MW disintegration reduces the amount of specific energy required to disintegrate the biomass from 18,900 kJ/kg TS to 13,500 kJ/kg TS, when compared to control. The impact of EGTA-MW disintegration on anaerobic digestion was also evident from its methane yield (235.3 mL/g VS) which was 36.2% higher than control. An economic assessment of this study provides a net profit of 8.48 €/ton in EGTA-MW and highly endorsed for biomass disintegration.",

keywords = "Biomass lysis, Biomethane production, Deflocculation, EGTA, Waste activated biomass",

author = "{Rajesh Banu}, J. and Eswari, {A. Parvathy} and Saratale, {Ganesh Dattatraya} and {Uma Rani}, R. and S. Kaliappan and Yeom, {Ick Tae}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = oct,

day = "1",

doi = "10.1016/j.jenvman.2018.06.079",

language = "English",

volume = "223",

pages = "644--651",

journal = "Journal of Environmental Management",

issn = "0301-4797",

publisher = "Academic Press",

}

TY - JOUR

T1 - Enhancing biomethanation from dairy waste activated biomass using a novel EGTA mediated microwave disintegration

AU - Rajesh Banu, J.

AU - Eswari, A. Parvathy

AU - Saratale, Ganesh Dattatraya

AU - Uma Rani, R.

AU - Kaliappan, S.

AU - Yeom, Ick Tae

PY - 2018/10/1

Y1 - 2018/10/1

N2 - A novel approach to explore the impact of calcium specific chelant - Ethylene glycol tetra acetic acid (EGTA) on deflocculation followed by biomass disintegration using microwave (MW) was investigated. In the first phase of the study, the EGTA dosage of 0.012 g/g suspended solids (SS) was found to be optimal for disassociating the biomass. Subsequent disintegration of biomass in microwave (EGTA-MW) yielded a biomass lysis and solids reduction of about 39.7% and 30.5%. EGTA-MW disintegration reduces the amount of specific energy required to disintegrate the biomass from 18,900 kJ/kg TS to 13,500 kJ/kg TS, when compared to control. The impact of EGTA-MW disintegration on anaerobic digestion was also evident from its methane yield (235.3 mL/g VS) which was 36.2% higher than control. An economic assessment of this study provides a net profit of 8.48 €/ton in EGTA-MW and highly endorsed for biomass disintegration.

AB - A novel approach to explore the impact of calcium specific chelant - Ethylene glycol tetra acetic acid (EGTA) on deflocculation followed by biomass disintegration using microwave (MW) was investigated. In the first phase of the study, the EGTA dosage of 0.012 g/g suspended solids (SS) was found to be optimal for disassociating the biomass. Subsequent disintegration of biomass in microwave (EGTA-MW) yielded a biomass lysis and solids reduction of about 39.7% and 30.5%. EGTA-MW disintegration reduces the amount of specific energy required to disintegrate the biomass from 18,900 kJ/kg TS to 13,500 kJ/kg TS, when compared to control. The impact of EGTA-MW disintegration on anaerobic digestion was also evident from its methane yield (235.3 mL/g VS) which was 36.2% higher than control. An economic assessment of this study provides a net profit of 8.48 €/ton in EGTA-MW and highly endorsed for biomass disintegration.

KW - Biomass lysis

KW - Biomethane production

KW - Deflocculation

KW - EGTA

KW - Waste activated biomass

UR - http://www.scopus.com/inward/record.url?scp=85049332210&partnerID=8YFLogxK

U2 - 10.1016/j.jenvman.2018.06.079

DO - 10.1016/j.jenvman.2018.06.079

M3 - Article

C2 - 29975891

AN - SCOPUS:85049332210

SN - 0301-4797

VL - 223

SP - 644

EP - 651

JO - Journal of Environmental Management

JF - Journal of Environmental Management

ER -

Enhancing biomethanation from dairy waste activated biomass using a novel EGTA mediated microwave disintegration

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this