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BioMed Research International
Volume 2015 (2015), Article ID 590753, 9 pages
Research Article

Impact of pH Management Interval on Biohydrogen Production from Organic Fraction of Municipal Solid Wastes by Mesophilic Thermophilic Anaerobic Codigestion

1College of Engineering, Nanjing Agricultural University, Nanjing, Jiangsu 210031, China
2Department of Structures and Environmental Engineering, University of Agriculture, Faisalabad 38000, Pakistan
3Faculty of Agricultural Engineering, Sindh Agriculture University, Tandojam 70060, Pakistan
4Institute of Food Science and Technology, University of Agriculture, Faisalabad 38000, Pakistan

Received 27 August 2015; Revised 16 November 2015; Accepted 2 December 2015

Academic Editor: Wen-Jing Lu

Copyright © 2015 Chaudhry Arslan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The biohydrogen productions from the organic fraction of municipal solid wastes (OFMSW) were studied under pH management intervals of 12 h (PM12) and 24 h (PM24) for temperature of °C and °C. The OFMSW or food waste (FW) along with its two components, noodle waste (NW) and rice waste (RW), was codigested with sludge to estimate the potential of biohydrogen production. The biohydrogen production was higher in all reactors under PM12 as compared to PM24. The drop in pH from 7 to 5.3 was observed to be appropriate for biohydrogen production via mesophilic codigestion of noodle waste with the highest biohydrogen yield of 145.93 mL/g under PM12. When the temperature was increased from 37°C to 55°C and pH management interval was reduced from 24 h to 12 h, the biohydrogen yields were also changed from 39.21 mL/g to 89.67 mL/g , 91.77 mL/g to 145.93 mL/g , and 15.36 mL/g to 117.62 mL/g for FW, NW, and RW, respectively. The drop in pH and VFA production was better controlled under PM12 as compared to PM24. Overall, PM12 was found to be an effective mean for biohydrogen production through anaerobic digestion of food waste.