Home Journal List Pakistan Journal of Agricultural Sciences Volume-53 Article Details

Abstract
The effect of three total solid (TS) concentrations of 7.5, 10 and 12.5% on bio-hydrogen production potential of food waste (FW) in comparison with noodle waste (NW) and rice waste (RW) derived from FW were studied after co-digesting the wastes with heat shocked sludge under mesophilic (37°C) and thermophilic (55°C) conditions. The increase in TS concentration from 7.5% to 10% found an effective way to improve cumulative bio-hydrogen production from all tested wastes. As a whole, 7.5% TS concentration represented higher conversion efficiency of volatile solids into bio-hydrogen and the highest experimental yield of 95.8mL/VSfed was observed in 7.5%NW digester under thermophilic conditions. The increase in temperature within experimental range found an effective way to increase bio-hydrogen production potential of FW and NW only, whereas the same increase in temperature caused negative impact on bio-hydrogen production potential of RW. The optimum time period for active bio-hydrogen production found to be 24-72h of incubation. After 72h of incubation, the bio-hydrogen production reduced considerably in all reactors due to an abrupt increase in volatile fatty acid, and due to inhibition of bio-hydrogen production the drop in pH was also decreased.

Keywords

Chaudhry Arslan, Asma Sattar, Ji Changying, Abdul Nasir, Irshad Ali Mari, Fang Huimin. (2016) Comparing The Effect Of Total Solids Concentration On Biohydrogen Production Potential Of Food Waste And Its Derivatives Under Mesophilic Thermophilic Conditions, , Volume-53, Issue-3.
  • Views 492
  • Downloads
Previous Article 
Next Article  

Article Details

Journal
Pakistan Journal of Agricultural Sciences
Volume
Volume-53
Issue
Type
Language


Recent Volumes