Abstract
Trace elements have a significant effect on biochemical reactions and therefore the presence of optimum levels of trace elements is essential for bioreactor performances. In this study, the effects of five trace elements on biomethane production have been investigated. Experimental studies have been carried out with multiple batch reactors at 15 day HRT and mesophilic temperatures. The optimum concentrations for each of the trace elements Fe, Cu, Ni, Co and Mg were found as 5, 0.5, 0.5, 0.5 and 100 mg/L, respectively. Among tested trace elements, Cu was the one which provided the highest biomethane production. Cu addition was resulted in a 46 % increase in biomethane production followed by Co with 24 %. The biomethane production rate for these two trace elements was 191.70 and 110.77 ml CH4/g COD, respectively. Optimum levels for Ni, Fe and Mg increased biomethane production rate by approximately 14.3, 10 and 17 % compared to control groups, respectively. Because the exact amount of trace element requirement for each industry/reactor is different, specific case studies should be performed for each application. These results could be used as initial trace element concentrations for further continuous studies.
Funding source: Harran University Scientific Research Fund (HÜBAP/Project no: 18137)
Award Identifier / Grant number: 18137
Acknowledgments
The authors are thankful to Harran University for providing the necessary funds to carry out this research.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Conflict of interest statement: The authors declare that they have no conflicts of interest.
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Research funding: This study was funded by the Harran University Scientific Research Fund (HÜBAP/Project no: 18137), Şanlıurfa/Turkey.
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Data availability: All data is available upon request.
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© 2023 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Biorefining
- Effects of trace elements (Fe, Cu, Ni, Co and Mg) on biomethane production from paper mill wastewater
- Paper Technology
- Water-dispersible paper for packaging applications – balancing material strength and dispersibility
- Recyclable oil resistant paper with enhanced water resistance based on alkyl ketene dimer modified sodium alginate
- Coating
- Preparation and properties of a novel decorative base paper for formaldehyde-free adhesive impregnation
- The effect of carbon nanoparticles on cellulosic handsheets
- Environmental Impact
- Effects of programmed maintenance shutdowns on effluent quality of a bleached kraft pulp mill
- Carbon emissions analysis of the pulp molding industry: a comparison of dry-press and wet-press production processes
- Nanotechnology
- Effect of cellulose nanofibril concentration and diameter on the quality of bicomponent yarns
- The preparation of cellulose acetate capsules using emulsification techniques: high-shear bulk mixing and microfluidics
- Lignin
- Great potentials of lignin-based separator for Li-ion battery with electrospinning in aqueous system
- Using guaiacol as a capping agent in the hydrothermal depolymerisation of kraft lignin
- Preparation of flexible and binder-free lignin-based carbon nanofiber electrode materials by electrospinning in aqueous system
Articles in the same Issue
- Frontmatter
- Biorefining
- Effects of trace elements (Fe, Cu, Ni, Co and Mg) on biomethane production from paper mill wastewater
- Paper Technology
- Water-dispersible paper for packaging applications – balancing material strength and dispersibility
- Recyclable oil resistant paper with enhanced water resistance based on alkyl ketene dimer modified sodium alginate
- Coating
- Preparation and properties of a novel decorative base paper for formaldehyde-free adhesive impregnation
- The effect of carbon nanoparticles on cellulosic handsheets
- Environmental Impact
- Effects of programmed maintenance shutdowns on effluent quality of a bleached kraft pulp mill
- Carbon emissions analysis of the pulp molding industry: a comparison of dry-press and wet-press production processes
- Nanotechnology
- Effect of cellulose nanofibril concentration and diameter on the quality of bicomponent yarns
- The preparation of cellulose acetate capsules using emulsification techniques: high-shear bulk mixing and microfluidics
- Lignin
- Great potentials of lignin-based separator for Li-ion battery with electrospinning in aqueous system
- Using guaiacol as a capping agent in the hydrothermal depolymerisation of kraft lignin
- Preparation of flexible and binder-free lignin-based carbon nanofiber electrode materials by electrospinning in aqueous system