Production of hydrogen from beverage wastewater by dark fermentation in an internal circulation reactor: Effect on pH and hydraulic retention time
Energy demand currently is mostly satisfied by the use of fossil fuels that present not only problems for the environment, but also are not renewable. Dark fermentation (DF) is a biological process that can provide an alternative to meet energy needs. The use of industrial effluents from carbon-rich...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-08-01
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| Series: | Energy Conversion and Management: X |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590174522000551 |
| _version_ | 1818486819081158656 |
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| author | Alan J. Alvarez Karol L. Fuentes Carlos Alberto Arias Tatiana.R Chaparro |
| author_facet | Alan J. Alvarez Karol L. Fuentes Carlos Alberto Arias Tatiana.R Chaparro |
| author_sort | Alan J. Alvarez |
| collection | DOAJ |
| description | Energy demand currently is mostly satisfied by the use of fossil fuels that present not only problems for the environment, but also are not renewable. Dark fermentation (DF) is a biological process that can provide an alternative to meet energy needs. The use of industrial effluents from carbon-rich waters in the production of hydrogen and volatile fatty acids (VFAs) through the DF is a promising strategy. However, determining the optimal operating conditions to increase the production of the sub-products has been not being thoroughly studied. This study aims at determining the optimal condition of hydraulic retention time (HRT) and pH to improve hydrogen production in an internal recirculation (IC) reactor treating beverage wastewater using Response Surface Methodology and interaction between factors. The study also assessed VFAs concentrations when operating at optimal conditions. The results showed that the combination of an 8.0 h HRT and 5.5 produced 30% of hydrogen and the interaction between factors established that the pH was the main factor influencing the results. Also, it was observed that the concentration of lactic acid did not inhibit the production of H2 for the optimal value of pH. However, it is evident that more studies using HRT of less than 8 h and of VFAs distribution are needed. Future optimization technique considerations are necessary to reduce uncertainties for biological hydrogen production purposes. |
| first_indexed | 2024-12-10T16:28:06Z |
| format | Article |
| id | doaj.art-9d95a75eda81470bb410b105294cab4d |
| institution | Directory Open Access Journal |
| issn | 2590-1745 |
| language | English |
| last_indexed | 2024-12-10T16:28:06Z |
| publishDate | 2022-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Conversion and Management: X |
| spelling | doaj.art-9d95a75eda81470bb410b105294cab4d2022-12-22T01:41:37ZengElsevierEnergy Conversion and Management: X2590-17452022-08-0115100232Production of hydrogen from beverage wastewater by dark fermentation in an internal circulation reactor: Effect on pH and hydraulic retention timeAlan J. Alvarez0Karol L. Fuentes1Carlos Alberto Arias2Tatiana.R Chaparro3Universidad Militar Nueva Granada, Faculty of Engineering, Water & Energy Research Group, Cra. 11 No 101-80 Bogotá, ColombiaUniversidad Militar Nueva Granada, Faculty of Engineering, Water & Energy Research Group, Cra. 11 No 101-80 Bogotá, ColombiaDepartment of Biology, Aquatic Biology, Aarhus University, Ole Worms Allé 1, Bldg 1135 Aarhus University, 8000 Aarhus C., Denmark; Aarhus University Centre for Water Technology WATEC Aarhus University, Ny Munkegade 120, Bldg 1521 DK-8000 Aarhus C, DenmarkUniversidad Militar Nueva Granada, Faculty of Engineering, Water & Energy Research Group, Cra. 11 No 101-80 Bogotá, Colombia; Corresponding author.Energy demand currently is mostly satisfied by the use of fossil fuels that present not only problems for the environment, but also are not renewable. Dark fermentation (DF) is a biological process that can provide an alternative to meet energy needs. The use of industrial effluents from carbon-rich waters in the production of hydrogen and volatile fatty acids (VFAs) through the DF is a promising strategy. However, determining the optimal operating conditions to increase the production of the sub-products has been not being thoroughly studied. This study aims at determining the optimal condition of hydraulic retention time (HRT) and pH to improve hydrogen production in an internal recirculation (IC) reactor treating beverage wastewater using Response Surface Methodology and interaction between factors. The study also assessed VFAs concentrations when operating at optimal conditions. The results showed that the combination of an 8.0 h HRT and 5.5 produced 30% of hydrogen and the interaction between factors established that the pH was the main factor influencing the results. Also, it was observed that the concentration of lactic acid did not inhibit the production of H2 for the optimal value of pH. However, it is evident that more studies using HRT of less than 8 h and of VFAs distribution are needed. Future optimization technique considerations are necessary to reduce uncertainties for biological hydrogen production purposes.http://www.sciencedirect.com/science/article/pii/S2590174522000551Anaerobic digestionDark fermentationHydrogen productionResponse surface methodologyWastewater |
| spellingShingle | Alan J. Alvarez Karol L. Fuentes Carlos Alberto Arias Tatiana.R Chaparro Production of hydrogen from beverage wastewater by dark fermentation in an internal circulation reactor: Effect on pH and hydraulic retention time Energy Conversion and Management: X Anaerobic digestion Dark fermentation Hydrogen production Response surface methodology Wastewater |
| title | Production of hydrogen from beverage wastewater by dark fermentation in an internal circulation reactor: Effect on pH and hydraulic retention time |
| title_full | Production of hydrogen from beverage wastewater by dark fermentation in an internal circulation reactor: Effect on pH and hydraulic retention time |
| title_fullStr | Production of hydrogen from beverage wastewater by dark fermentation in an internal circulation reactor: Effect on pH and hydraulic retention time |
| title_full_unstemmed | Production of hydrogen from beverage wastewater by dark fermentation in an internal circulation reactor: Effect on pH and hydraulic retention time |
| title_short | Production of hydrogen from beverage wastewater by dark fermentation in an internal circulation reactor: Effect on pH and hydraulic retention time |
| title_sort | production of hydrogen from beverage wastewater by dark fermentation in an internal circulation reactor effect on ph and hydraulic retention time |
| topic | Anaerobic digestion Dark fermentation Hydrogen production Response surface methodology Wastewater |
| url | http://www.sciencedirect.com/science/article/pii/S2590174522000551 |
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