Next Article in Journal
Early Ideas in Underground Coal Gasification and Their Evolution
Next Article in Special Issue
Thermochemical Biomass Gasification: A Review of the Current Status of the Technology
Previous Article in Journal
A Microscale Modeling Tool for the Design and Optimization of Solid Oxide Fuel Cells
Previous Article in Special Issue
Closing the Global Energy and Nutrient Cycles through Application of Biogas Residue to Agricultural Land – Potential Benefits and Drawback
Article Menu

Export Article

Open AccessArticle

Biological Hydrogen Production from Corn-Syrup Waste Using a Novel System

Civil and Environmental Engineering Department, University of Western Ontario, London, Ontario, Canada
Author to whom correspondence should be addressed.
Energies 2009, 2(2), 445-455;
Received: 31 May 2009 / Revised: 10 June 2009 / Accepted: 19 June 2009 / Published: 24 June 2009
PDF [276 KB, uploaded 17 March 2015]


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. View Full-Text
Keywords: biohydrogenator; corn-syrup; organic loading rate biohydrogenator; corn-syrup; organic loading rate

Figure 1

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

MDPI and ACS Style

Hafez, H.; Nakhla, G.; El Naggar, H. Biological Hydrogen Production from Corn-Syrup Waste Using a Novel System. Energies 2009, 2, 445-455.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top