Profitable ultrasonic assisted microwave disintegration of sludge biomass: Modelling of biomethanation and energy parameter analysis

S. Kavitha, J. Rajesh Banu, Gopalakrishnan Kumar, S. Kaliappan, Ick Tae Yeom

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

In this study, microwave irradiation has been employed to disintegrate the sludge biomass profitably by deagglomerating the sludge using a mechanical device, ultrasonicator. The outcomes of the study revealed that a specific energy input of 3.5 kJ/kg TS was found to be optimum for deagglomeration with limited cell lysis. A higher suspended solids (SS) reduction and biomass lysis efficiency of about 22.5% and 33.2% was achieved through ultrasonic assisted microwave disintegration (UMWD) when compared to microwave disintegration – MWD (15% and 20.9%). The results of biochemical methane potential (BMP) test were used to estimate biodegradability of samples. Among the samples subjected to BMP, UMWD showed better amenability towards anaerobic digestion with higher methane production potential of 0.3 L/g COD representing enhanced liquefaction potential of disaggregated sludge biomass. Economic analysis of the proposed method of sludge biomass pretreatment showed a net profit of 2.67 USD/Ton respectively.

Original languageEnglish
Pages (from-to)203-213
Number of pages11
JournalBioresource technology
Volume254
DOIs
Publication statusPublished - 2018 Apr 1

Fingerprint

Disintegration
Methane
Biomass
Ultrasonics
sludge
Microwaves
methane
lysis
biomass
modeling
energy
Microwave irradiation
Anaerobic digestion
Biodegradability
Economic analysis
Liquefaction
economic analysis
liquefaction
Profitability
irradiation

All Science Journal Classification (ASJC) codes

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

Cite this

@article{6905745a602148e1b9414d68cbb513fd,
title = "Profitable ultrasonic assisted microwave disintegration of sludge biomass: Modelling of biomethanation and energy parameter analysis",
abstract = "In this study, microwave irradiation has been employed to disintegrate the sludge biomass profitably by deagglomerating the sludge using a mechanical device, ultrasonicator. The outcomes of the study revealed that a specific energy input of 3.5 kJ/kg TS was found to be optimum for deagglomeration with limited cell lysis. A higher suspended solids (SS) reduction and biomass lysis efficiency of about 22.5{\%} and 33.2{\%} was achieved through ultrasonic assisted microwave disintegration (UMWD) when compared to microwave disintegration – MWD (15{\%} and 20.9{\%}). The results of biochemical methane potential (BMP) test were used to estimate biodegradability of samples. Among the samples subjected to BMP, UMWD showed better amenability towards anaerobic digestion with higher methane production potential of 0.3 L/g COD representing enhanced liquefaction potential of disaggregated sludge biomass. Economic analysis of the proposed method of sludge biomass pretreatment showed a net profit of 2.67 USD/Ton respectively.",
author = "S. Kavitha and {Rajesh Banu}, J. and Gopalakrishnan Kumar and S. Kaliappan and Yeom, {Ick Tae}",
year = "2018",
month = "4",
day = "1",
doi = "10.1016/j.biortech.2018.01.072",
language = "English",
volume = "254",
pages = "203--213",
journal = "Bioresource Technology",
issn = "0960-8524",
publisher = "Elsevier Limited",

}

Profitable ultrasonic assisted microwave disintegration of sludge biomass : Modelling of biomethanation and energy parameter analysis. / Kavitha, S.; Rajesh Banu, J.; Kumar, Gopalakrishnan; Kaliappan, S.; Yeom, Ick Tae.

In: Bioresource technology, Vol. 254, 01.04.2018, p. 203-213.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Profitable ultrasonic assisted microwave disintegration of sludge biomass

T2 - Modelling of biomethanation and energy parameter analysis

AU - Kavitha, S.

AU - Rajesh Banu, J.

AU - Kumar, Gopalakrishnan

AU - Kaliappan, S.

AU - Yeom, Ick Tae

PY - 2018/4/1

Y1 - 2018/4/1

N2 - In this study, microwave irradiation has been employed to disintegrate the sludge biomass profitably by deagglomerating the sludge using a mechanical device, ultrasonicator. The outcomes of the study revealed that a specific energy input of 3.5 kJ/kg TS was found to be optimum for deagglomeration with limited cell lysis. A higher suspended solids (SS) reduction and biomass lysis efficiency of about 22.5% and 33.2% was achieved through ultrasonic assisted microwave disintegration (UMWD) when compared to microwave disintegration – MWD (15% and 20.9%). The results of biochemical methane potential (BMP) test were used to estimate biodegradability of samples. Among the samples subjected to BMP, UMWD showed better amenability towards anaerobic digestion with higher methane production potential of 0.3 L/g COD representing enhanced liquefaction potential of disaggregated sludge biomass. Economic analysis of the proposed method of sludge biomass pretreatment showed a net profit of 2.67 USD/Ton respectively.

AB - In this study, microwave irradiation has been employed to disintegrate the sludge biomass profitably by deagglomerating the sludge using a mechanical device, ultrasonicator. The outcomes of the study revealed that a specific energy input of 3.5 kJ/kg TS was found to be optimum for deagglomeration with limited cell lysis. A higher suspended solids (SS) reduction and biomass lysis efficiency of about 22.5% and 33.2% was achieved through ultrasonic assisted microwave disintegration (UMWD) when compared to microwave disintegration – MWD (15% and 20.9%). The results of biochemical methane potential (BMP) test were used to estimate biodegradability of samples. Among the samples subjected to BMP, UMWD showed better amenability towards anaerobic digestion with higher methane production potential of 0.3 L/g COD representing enhanced liquefaction potential of disaggregated sludge biomass. Economic analysis of the proposed method of sludge biomass pretreatment showed a net profit of 2.67 USD/Ton respectively.

UR - http://www.scopus.com/inward/record.url?scp=85043337830&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85043337830&partnerID=8YFLogxK

U2 - 10.1016/j.biortech.2018.01.072

DO - 10.1016/j.biortech.2018.01.072

M3 - Article

C2 - 29413924

AN - SCOPUS:85043337830

VL - 254

SP - 203

EP - 213

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

ER -