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

被引：22

作者：

Chandra, T. Sarat ^{[1
,2
,3
]}

Suvidha, G. ^{[1
]}

Mukherji, S. ^{[2
]}

Chauhan, V. S. ^{[3
]}

Vidyashankar, S. ^{[3
]}

Krishnamurthi, K. ^{[1
]}

Sarada, R. ^{[3
]}

Mudliar, S. N. ^{[3
]}

机构：

[1] CSIR, Natl Environm Engn Res Inst, Environm Biotechnol Div, Nagpur, Maharashtra, India

[2] Indian Inst Technol, Ctr Environm Sci & Engn, Bombay 400076, Maharashtra, India

[3] CSIR, Cent Food Technol Res Inst, Plant Cell Biotechnol Dept, Mysore, Karnataka, India

来源：

BIORESOURCE TECHNOLOGY | 2014年 / 162卷

关键词：

Scenedesmus dimorphus; Defatted algal biomass; Thermal pretreatment; Methane yield; ANAEROBIC-DIGESTION; BIOGAS PRODUCTION; MICROALGAE; BIODIESEL; SLUDGE; IMPACT;

D O I：

10.1016/j.biortech.2014.03.080

中图分类号：

S2 [农业工程];

学科分类号：

082806 [农业信息与电气工程];

摘要：

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.

引用

页码：157 / 165

页数：9

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