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Development, identification and validation of a mathematical model of anaerobic digestion of sewage sludge focusing on H2S formation and transfer

Paper ID Volume ID Publish Year Pages File Format Full-Text
2702 127 2016 7 PDF Available
Title
Development, identification and validation of a mathematical model of anaerobic digestion of sewage sludge focusing on H2S formation and transfer
Abstract

•A simplified dynamic anaerobic model focus on H2S formation was developed.•Model development through sensitivity, collinearity and uncertainty analysis.•Model implementation was validated with two pilot scale reactors.

Nowadays, there are plenty of models of the anaerobic digestion process, however the impact of this odor emission on these models has received very little attention. Hydrogen sulfide (H2S) has been used as odor trace marker for odor dispersion studies which is formed by microbial action of sulfate reducing bacteria under anaerobic conditions. A mathematical model with focus on the H2S generation with a reduce number of parameters of five stages was developed. The model and parameters were calibrated and validated with experimental data from two pilot scale anaerobic reactors treating sewage sludge. The developed model is able to describe properly the dynamic behavior of this system, particularly, its gas phase composition with an accuracy of 90%, for hydrogen sulfide and carbon dioxide, and 60% for methane, within 99% of confidence.

Keywords
Anaerobic processes; Dynamic modelling; Dynamic simulation; Modelling; Waste-water treatment; Biogas
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Development, identification and validation of a mathematical model of anaerobic digestion of sewage sludge focusing on H2S formation and transfer
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 112, 15 August 2016, Pages 13–19
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us