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Statistical optimization of thermal pretreatment conditions for enhanced biomethane production from defatted algal biomass

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Title Statistical optimization of thermal pretreatment conditions for enhanced biomethane production from defatted algal biomass
 
Creator CHANDRA, TS
SUVIDHA, G
MUKHERJI, S
CHAUHAN, VS
VIDYASHANKAR, S
KRISHNAMURTHI, K
SARADA, R
MUDLIAR, SN
 
Subject Scenedesmus dimorphus
Defatted algal biomass
Thermal pretreatment
Methane yield
ANAEROBIC-DIGESTION
METHANE PRODUCTION
BIODIESEL PRODUCTION
MICROALGAL BIOMASS
BIOGAS PRODUCTION
FATTY-ACID
RESIDUE
SLUDGE
IMPACT
 
Description The present study analyzes the effect of thermal pretreatment for enhancing the biomethane potential of defatted algal biomass of Scenedesmus dimorphus through statistically guided experimental design. To this end, defatted microalgal biomass at various concentrations (1, 3 and 5 g L-1) was pretreated at elevated temperatures (100, 120 and 150 degrees C) for 20, 40 and 60 min. The solubilised TOC was favourably enhanced up to 71 mg L-1 after pretreatment at a temperature of 150 degrees C for reaction time of 60 min. The methane yield was substantially enhanced (up to 60%) and could be correlated with an increase in organic matter solubilisation and enhanced biodegradability via thermal pretreatment. The optimisation of the integrated thermal pretreatment-biomethanation process resulted in up to 1.6-fold increase in methane yield. (C) 2014 Elsevier Ltd. All rights reserved.
 
Publisher ELSEVIER SCI LTD
 
Date 2014-12-28T16:45:21Z
2014-12-28T16:45:21Z
2014
 
Type Article
 
Identifier BIORESOURCE TECHNOLOGY, 162157-165
0960-8524
1873-2976
http://dx.doi.org/10.1016/j.biortech.2014.03.080
http://dspace.library.iitb.ac.in/jspui/handle/100/16918
 
Language English