Pretreatment of Cottage Cheese to Enhance Biogas Production
Joint Authors
Mutnuri, Srikanth
Salgaonkar, Bhakti
Braganca, Judith
Prabhudessai, Vidhya
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-02
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
This study evaluated the possibility of pretreating selected solid fraction of an anaerobic digester treating food waste to lower the hydraulic retention time and increase the methane production.
The study investigated the effect of different pretreatments (thermal, chemical, thermochemical and enzymatic) for enhanced methane production from cottage cheese.
The most effective pretreatments were thermal and enzymatic.
Highest solubilisation of COD was observed in thermal pretreatment, followed by thermochemical.
In single enzyme systems, lipase at low concentration gave significantly higher methane yield than for the experiments without enzyme additions.
The highest lipase dosages decreased methane yield from cottage cheese.
However, in case of protease enzyme an increase in concentration of the enzyme showed higher methane yield.
In the case of mixed enzyme systems, pretreatment at 1 : 2 ratio of lipase : protease showed higher methane production in comparison with 1 : 1 and 2 : 1 ratios.
Methane production potentials for different pretreatments were as follows: thermal 357 mL/g VS, chemical 293 mL/g VS, and thermochemical 441 mL/g VS.
The average methane yield from single enzyme systems was 335 mL/g VS for lipase and 328 mL/g VS for protease.
Methane potentials for mixed enzyme ratios were 330, 360, and 339 mL/g VS for 1 : 1, 1 : 2, and 2 : 1 lipase : protease, respectively.
American Psychological Association (APA)
Prabhudessai, Vidhya& Salgaonkar, Bhakti& Braganca, Judith& Mutnuri, Srikanth. 2014. Pretreatment of Cottage Cheese to Enhance Biogas Production. BioMed Research International،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-467034
Modern Language Association (MLA)
Prabhudessai, Vidhya…[et al.]. Pretreatment of Cottage Cheese to Enhance Biogas Production. BioMed Research International No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-467034
American Medical Association (AMA)
Prabhudessai, Vidhya& Salgaonkar, Bhakti& Braganca, Judith& Mutnuri, Srikanth. Pretreatment of Cottage Cheese to Enhance Biogas Production. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-467034
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-467034