Monitoring of Anaerobic Degradation in Batch Assays Using Fiber Bags

Alastair James Ward; Martin Riis Weisbjerg; Peter Lund; Nick Hutchings

doi:10.1002/ceat.202100303

Monitoring of Anaerobic Degradation in Batch Assays Using Fiber Bags

Alastair James Ward, Martin Riis Weisbjerg, Peter Lund, Nick Hutchings

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Abstract

The anaerobic batch digestion of freeze-dried and ground (< 1.5 mm) maize silage, wheat straw, cattle manure, pig manure, and cellulose filter paper was investigated with substrates placed in polyester filter bags. Gas production dynamics of bagged and non-bagged substrates were compared. By using batch bottles running in parallel with those used for gas measurement, substrates could be sampled over time and various parameters measured for both substrate and bulk liquid. The bags allowed an immediate mass loss into the bulk liquid with some substrates and a generally lower rate of gas production. This method requires refinement but has potential for the study of the dynamics of substrate degradation during anaerobic digestion.

Original language	English
Journal	Chemical Engineering and Technology
Volume	46
Issue	3
Pages (from-to)	522-529
Number of pages	8
ISSN	0930-7516
DOIs	https://doi.org/10.1002/ceat.202100303
Publication status	Published - Mar 2023

Keywords

Anaerobic digestion
Degradation models
Fiber bags

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10.1002/ceat.202100303Licence: CC BY-NC-ND

Chem Eng Technol - 2022 - Ward - Monitoring of Anaerobic Degradation in Batch Assays Using Fiber BagsFinal published version, 1.58 MBLicence: CC BY-NC-ND

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title = "Monitoring of Anaerobic Degradation in Batch Assays Using Fiber Bags",

abstract = "The anaerobic batch digestion of freeze-dried and ground (< 1.5 mm) maize silage, wheat straw, cattle manure, pig manure, and cellulose filter paper was investigated with substrates placed in polyester filter bags. Gas production dynamics of bagged and non-bagged substrates were compared. By using batch bottles running in parallel with those used for gas measurement, substrates could be sampled over time and various parameters measured for both substrate and bulk liquid. The bags allowed an immediate mass loss into the bulk liquid with some substrates and a generally lower rate of gas production. This method requires refinement but has potential for the study of the dynamics of substrate degradation during anaerobic digestion.",

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language = "English",

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AU - Ward, Alastair James

AU - Weisbjerg, Martin Riis

AU - Lund, Peter

AU - Hutchings, Nick

PY - 2023/3

Y1 - 2023/3

N2 - The anaerobic batch digestion of freeze-dried and ground (< 1.5 mm) maize silage, wheat straw, cattle manure, pig manure, and cellulose filter paper was investigated with substrates placed in polyester filter bags. Gas production dynamics of bagged and non-bagged substrates were compared. By using batch bottles running in parallel with those used for gas measurement, substrates could be sampled over time and various parameters measured for both substrate and bulk liquid. The bags allowed an immediate mass loss into the bulk liquid with some substrates and a generally lower rate of gas production. This method requires refinement but has potential for the study of the dynamics of substrate degradation during anaerobic digestion.

AB - The anaerobic batch digestion of freeze-dried and ground (< 1.5 mm) maize silage, wheat straw, cattle manure, pig manure, and cellulose filter paper was investigated with substrates placed in polyester filter bags. Gas production dynamics of bagged and non-bagged substrates were compared. By using batch bottles running in parallel with those used for gas measurement, substrates could be sampled over time and various parameters measured for both substrate and bulk liquid. The bags allowed an immediate mass loss into the bulk liquid with some substrates and a generally lower rate of gas production. This method requires refinement but has potential for the study of the dynamics of substrate degradation during anaerobic digestion.

KW - Anaerobic digestion

KW - Degradation models

KW - Fiber bags

U2 - 10.1002/ceat.202100303

DO - 10.1002/ceat.202100303

M3 - Journal article

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EP - 529

JO - Chemical Engineering and Technology

JF - Chemical Engineering and Technology

IS - 3

ER -

Monitoring of Anaerobic Degradation in Batch Assays Using Fiber Bags

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Keywords

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