Biological Hydrogen Production from Corn-Syrup Waste Using a Novel System
The reported patent-pending system comprises a novel biohydrogen reactor with a gravity settler for decoupling of SRT from HRT. The biohydrogenator was operated for 100 days at 37 °C, hydraulic retention time 8 h and solids retention time ranging from 2.2–2.5 days. The feed was a corn-syrup waste ge...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2009-06-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/2/2/445/ |
| _version_ | 1798042124913999872 |
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| author | George Nakhla Hisham Hafez Hesham El Naggar |
| author_facet | George Nakhla Hisham Hafez Hesham El Naggar |
| author_sort | George Nakhla |
| collection | DOAJ |
| description | The reported patent-pending system comprises a novel biohydrogen reactor with a gravity settler for decoupling of SRT from HRT. The biohydrogenator was operated for 100 days at 37 °C, hydraulic retention time 8 h and solids retention time ranging from 2.2–2.5 days. The feed was a corn-syrup waste generated as a byproduct from an industrial facility for bioethanol production located in southwestern Ontario, Canada. The system was initially started up with a synthetic feed containing glucose at concentration of 8 g/L and other essential inorganics. Anaerobicaly-digested sludge from the St. Mary’s wastewater treatment plant (St. Mary, Ontario, Canada) was used as the seed, and was heat treated at 70 °C for 30 min to inhibit methanogens. After 10 days, when the hydrogen production was steady, the corn-syrup waste was introduced to the system. Glucose was the main constituent in the corn-syrup; its concentration was varied over a period of 90 days from 8 to 25 g/L. The change in glucose concentration was used to study the impact of variable organic loading on the stability of hydrogen production in the biohydrogenator. Hydrogen production rate increased from 10 L H2/L·d to 34 L H2/L·d with the increase of organic loading rate (OLR) from 26 to 81 gCOD/L·d, while a maximum hydrogen yield of 430 mL H2/gCOD was achieved in the system with an overall average of 385 mL H2/gCOD. |
| first_indexed | 2024-04-11T22:31:10Z |
| format | Article |
| id | doaj.art-77fade2e9d5d48798552d2edebdfd191 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T22:31:10Z |
| publishDate | 2009-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-77fade2e9d5d48798552d2edebdfd1912022-12-22T03:59:24ZengMDPI AGEnergies1996-10732009-06-012244545510.3390/en20200445Biological Hydrogen Production from Corn-Syrup Waste Using a Novel SystemGeorge NakhlaHisham HafezHesham El NaggarThe reported patent-pending system comprises a novel biohydrogen reactor with a gravity settler for decoupling of SRT from HRT. The biohydrogenator was operated for 100 days at 37 °C, hydraulic retention time 8 h and solids retention time ranging from 2.2–2.5 days. The feed was a corn-syrup waste generated as a byproduct from an industrial facility for bioethanol production located in southwestern Ontario, Canada. The system was initially started up with a synthetic feed containing glucose at concentration of 8 g/L and other essential inorganics. Anaerobicaly-digested sludge from the St. Mary’s wastewater treatment plant (St. Mary, Ontario, Canada) was used as the seed, and was heat treated at 70 °C for 30 min to inhibit methanogens. After 10 days, when the hydrogen production was steady, the corn-syrup waste was introduced to the system. Glucose was the main constituent in the corn-syrup; its concentration was varied over a period of 90 days from 8 to 25 g/L. The change in glucose concentration was used to study the impact of variable organic loading on the stability of hydrogen production in the biohydrogenator. Hydrogen production rate increased from 10 L H2/L·d to 34 L H2/L·d with the increase of organic loading rate (OLR) from 26 to 81 gCOD/L·d, while a maximum hydrogen yield of 430 mL H2/gCOD was achieved in the system with an overall average of 385 mL H2/gCOD.http://www.mdpi.com/1996-1073/2/2/445/biohydrogenatorcorn-syruporganic loading rate |
| spellingShingle | George Nakhla Hisham Hafez Hesham El Naggar Biological Hydrogen Production from Corn-Syrup Waste Using a Novel System Energies biohydrogenator corn-syrup organic loading rate |
| title | Biological Hydrogen Production from Corn-Syrup Waste Using a Novel System |
| title_full | Biological Hydrogen Production from Corn-Syrup Waste Using a Novel System |
| title_fullStr | Biological Hydrogen Production from Corn-Syrup Waste Using a Novel System |
| title_full_unstemmed | Biological Hydrogen Production from Corn-Syrup Waste Using a Novel System |
| title_short | Biological Hydrogen Production from Corn-Syrup Waste Using a Novel System |
| title_sort | biological hydrogen production from corn syrup waste using a novel system |
| topic | biohydrogenator corn-syrup organic loading rate |
| url | http://www.mdpi.com/1996-1073/2/2/445/ |
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