Economic process to produce biohydrogen and volatile fatty acids by a mixed culture using vinasse from sugarcane ethanol industry as nutrient source

•Industrial wastewater was utilized to produce bioenergy and volatile fatty acids.•Complete metabolic analysis of 2 different anaerobic consortia were carried out.•Very high biohydrogen production, yields and purity were achieved.•The developed technology has a high potential to be transferred to th...

Full description

Saved in:
Bibliographic Details
Published in:Bioresource technology 2014-05, Vol.159, p.380-386
Main Authors: Sydney, Eduardo Bittencourt, Larroche, Christian, Novak, Alessandra Cristine, Nouaille, Regis, Sarma, Saurabh Jyoti, Brar, Satinder Kaur, Letti, Luiz Alberto Junior, Soccol, Vanete Thomaz, Soccol, Carlos Ricardo
Format: Article
Language:English
Subjects:
Bacteriology
Biofuel production
Biofuels - economics
Biogas
Biohydrogen
Biological and medical sciences
Bioreactors - microbiology
Biotechnology
Biotechnology - economics
Biotechnology - methods
Carbon - pharmacology
Economics
Energy
Ethanol
Ethanol - pharmacology
Ethyl alcohol
Fatty acids
Fatty Acids, Volatile - biosynthesis
Fatty Acids, Volatile - economics
Food industries
Fundamental and applied biological sciences. Psychology
Hydrogen - economics
Hydrogen - metabolism
Hydrogen-Ion Concentration
Industrial applications and implications. Economical aspects
Industrial Waste
Juices
Life Sciences
Microbial Consortia - drug effects
Microbiology and Parasitology
Models, Theoretical
Molasses
Nutrients
Protistology
Saccharum - chemistry
Sugarcane
Use and upgrading of agricultural and food by-products. Biotechnology
Vinasse
Volatile fatty acids
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•Industrial wastewater was utilized to produce bioenergy and volatile fatty acids.•Complete metabolic analysis of 2 different anaerobic consortia were carried out.•Very high biohydrogen production, yields and purity were achieved.•The developed technology has a high potential to be transferred to the industry. This work evaluates the potential of vinasse (a waste obtained at the bottom of sugarcane ethanol distillation columns) as nutrient source for biohydrogen and volatile fatty acids production by means of anaerobic consortia. Two different media were proposed, using sugarcane juice or molasses as carbon source. The consortium LPBAH1 was selected for fermentation of vinasse supplemented with sugarcane juice, resulting in a higher H2 yield of 7.14molH2 molsucrose−1 and hydrogen content in biogas of approx. 31%, while consortium LPBAH2 resulted in 3.66molH2/molsucrose and 32.7% hydrogen content in biogas. The proposed process showed a rational and economical use for vinasse, a mandatory byproduct of the renewable Brazilian energy matrix.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2014.02.042