LAPSE:2020.0989
Published Article
LAPSE:2020.0989
Sulfur, Phosphorus and Metals in the Stoichiometric Estimation of Biomethane and Biohydrogen Yields
Yehor Pererva, Charles D. Miler, Ronald C. Sims
September 23, 2020
The estimation of biomethane or biohydrogen yield is used to evaluate energy recovery during the process of the anaerobic treatment of waste and wastewater. Mathematically calculated theoretical values can also be used in biomethane or biohydrogen potential tests as reference points to calculate which fraction of substrate is decomposed, when the substrate degradation stopped and when the sample’s self-digestion begins. This study suggests expanded forms of equations for anaerobic processes leading to either biomethane or biohydrogen. The traditional equations describing the conversion of a substrate with known carbon, hydrogen, oxygen and nitrogen composition were expanded to account for the composition of sulfur (for biohydrogen yields) and phosphorus (both biohydrogen and biomethane yields). As an optional part, one metal cation was also incorporated into the chemical formula of the evaluated wastewater composition in case the compound of biodegradable interest exists as a salt. The equations derived here can be useful for researchers estimating energy recovery based on the elemental analysis of samples, such as algal biomass harvested during harmful algal blooms (HABs). Examples of biomethane and biohydrogen yield estimations from sulfur- and phosphorus-containing compounds are also provided.
Keywords
anaerobic digestion, gross yield estimation, hydrogen fermentation, methane production
Suggested Citation
Pererva Y, Miler CD, Sims RC. Sulfur, Phosphorus and Metals in the Stoichiometric Estimation of Biomethane and Biohydrogen Yields. (2020). LAPSE:2020.0989
Author Affiliations
Pererva Y: Department of Biological Engineering, Utah State University, 4105 Old Main Hill, Logan, UT 84322-4105, USA [ORCID]
Miler CD: Department of Biological Engineering, Utah State University, 4105 Old Main Hill, Logan, UT 84322-4105, USA
Sims RC: Department of Biological Engineering, Utah State University, 4105 Old Main Hill, Logan, UT 84322-4105, USA
Journal Name
Processes
Volume
8
Issue
6
Article Number
E714
Year
2020
Publication Date
2020-06-20
Published Version
ISSN
2227-9717
Version Comments
Original Submission
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PII: pr8060714, Publication Type: Journal Article
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LAPSE:2020.0989
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doi:10.3390/pr8060714
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Sep 23, 2020
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CC BY 4.0
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Sep 23, 2020
 
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Original Submitter
Calvin Tsay
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