Compositional changes in swine manure fibers treated with aqueous ammonia soaking (AAS) resulting in increased methane potential

Esperanza Jurado; Mads  A.T. Hansen; Hariklia N. Gavala; Ioannis Skiadas

Compositional changes in swine manure fibers treated with aqueous ammonia soaking (AAS) resulting in increased methane potential

Esperanza Jurado, Mads A.T. Hansen, Hariklia N. Gavala, Ioannis Skiadas

Department of Chemistry and Bioscience

Research output: Contribution to book/anthology/report/conference proceeding › Conference abstract in proceeding › Research › peer-review

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Abstract

AAS treatment is a very efficient method to increase the methane potential of manure fibers. The chemical composition and supramolecular structures of swine manure fibers before and after AAS treatment was investigated in this study. Composition analyses, atomic force microscopy (AFM), scanning electron microscopy (SEM), and chemical surface composition by Attenuated Total Reflectance–Fourier Transform Infrared (ATR–FTIR) showed that no delignification of the lignocellulose took place during AAS-treatment. Instead, the fibers were cleansed from debris, thus leaving the cellulose more exposed and accessible during subsequent anaerobic digestion. This finding has confirmed earlier experimental results, showing that delignification was not necessarily the limiting factor during conversion of manure fibers into methane while cellulose accessibility during digestion seemed more crucial.

Original language	English
Title of host publication	Poster abstract in the Proceedings of the 13th World Congress on Anaerobic Digestion : Recovering (bio) Resources for the World
Publisher	IWA Publishing
Publication date	28 Jun 2013
ISBN (Electronic)	978-84-695-7756-1
Publication status	Published - 28 Jun 2013
Event	World Congress on Anaerobic Digestion: : Recovering (bio) Resources for the World - Santiago de Compostela, Spain Duration: 25 Jun 2013 → 28 Jun 2013 Conference number: 13

Conference

Conference	World Congress on Anaerobic Digestion
Number	13
Country/Territory	Spain
City	Santiago de Compostela
Period	25/06/2013 → 28/06/2013

Keywords

Aqueous ammonia soaking
delignification
manure fibers
microscopy

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http://www.ad13.org/

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title = "Compositional changes in swine manure fibers treated with aqueous ammonia soaking (AAS) resulting in increased methane potential",

abstract = "AAS treatment is a very efficient method to increase the methane potential of manure fibers. The chemical composition and supramolecular structures of swine manure fibers before and after AAS treatment was investigated in this study. Composition analyses, atomic force microscopy (AFM), scanning electron microscopy (SEM), and chemical surface composition by Attenuated Total Reflectance–Fourier Transform Infrared (ATR–FTIR) showed that no delignification of the lignocellulose took place during AAS-treatment. Instead, the fibers were cleansed from debris, thus leaving the cellulose more exposed and accessible during subsequent anaerobic digestion. This finding has confirmed earlier experimental results, showing that delignification was not necessarily the limiting factor during conversion of manure fibers into methane while cellulose accessibility during digestion seemed more crucial.",

keywords = "Aqueous ammonia soaking, delignification, manure fibers, microscopy",

author = "Esperanza Jurado and Hansen, {Mads A.T.} and Gavala, {Hariklia N.} and Ioannis Skiadas",

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booktitle = "Poster abstract in the Proceedings of the 13th World Congress on Anaerobic Digestion",

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Jurado, E, Hansen, MAT, Gavala, HN & Skiadas, I 2013, Compositional changes in swine manure fibers treated with aqueous ammonia soaking (AAS) resulting in increased methane potential. in Poster abstract in the Proceedings of the 13th World Congress on Anaerobic Digestion: Recovering (bio) Resources for the World. IWA Publishing, World Congress on Anaerobic Digestion, Santiago de Compostela, Spain, 25/06/2013. <http://www.ad13.org/>

Compositional changes in swine manure fibers treated with aqueous ammonia soaking (AAS) resulting in increased methane potential. / Jurado, Esperanza; Hansen, Mads A.T.; Gavala, Hariklia N. et al.
Poster abstract in the Proceedings of the 13th World Congress on Anaerobic Digestion: Recovering (bio) Resources for the World. IWA Publishing, 2013.

Research output: Contribution to book/anthology/report/conference proceeding › Conference abstract in proceeding › Research › peer-review

TY - ABST

T1 - Compositional changes in swine manure fibers treated with aqueous ammonia soaking (AAS) resulting in increased methane potential

AU - Jurado, Esperanza

AU - Hansen, Mads A.T.

AU - Gavala, Hariklia N.

AU - Skiadas, Ioannis

N1 - Conference code: 13

PY - 2013/6/28

Y1 - 2013/6/28

N2 - AAS treatment is a very efficient method to increase the methane potential of manure fibers. The chemical composition and supramolecular structures of swine manure fibers before and after AAS treatment was investigated in this study. Composition analyses, atomic force microscopy (AFM), scanning electron microscopy (SEM), and chemical surface composition by Attenuated Total Reflectance–Fourier Transform Infrared (ATR–FTIR) showed that no delignification of the lignocellulose took place during AAS-treatment. Instead, the fibers were cleansed from debris, thus leaving the cellulose more exposed and accessible during subsequent anaerobic digestion. This finding has confirmed earlier experimental results, showing that delignification was not necessarily the limiting factor during conversion of manure fibers into methane while cellulose accessibility during digestion seemed more crucial.

AB - AAS treatment is a very efficient method to increase the methane potential of manure fibers. The chemical composition and supramolecular structures of swine manure fibers before and after AAS treatment was investigated in this study. Composition analyses, atomic force microscopy (AFM), scanning electron microscopy (SEM), and chemical surface composition by Attenuated Total Reflectance–Fourier Transform Infrared (ATR–FTIR) showed that no delignification of the lignocellulose took place during AAS-treatment. Instead, the fibers were cleansed from debris, thus leaving the cellulose more exposed and accessible during subsequent anaerobic digestion. This finding has confirmed earlier experimental results, showing that delignification was not necessarily the limiting factor during conversion of manure fibers into methane while cellulose accessibility during digestion seemed more crucial.

KW - Aqueous ammonia soaking

KW - delignification

KW - manure fibers

KW - microscopy

M3 - Conference abstract in proceeding

BT - Poster abstract in the Proceedings of the 13th World Congress on Anaerobic Digestion

PB - IWA Publishing

T2 - World Congress on Anaerobic Digestion

Y2 - 25 June 2013 through 28 June 2013

ER -

Compositional changes in swine manure fibers treated with aqueous ammonia soaking (AAS) resulting in increased methane potential

Abstract

Conference

Keywords

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