Abstract
The oversupply of glycerin as by-product from biodiesel industry has raised price crisis. However, the high nitrogen content of saleable glycerin (Gly) makes it a suitable co-substrate for anaerobic process. This study aims to evaluate the feasibility of anaerobic co-digestion (ACD) of Gly with two separate primary substrates namely palm oil mill effluent (POME) and poultry manure (PM). The study disclosed that the ACD of POME:Gly is best at ratio 1.6:0.4 with highest biogas production (Fgas) of 6.49 L/day and chemical oxygen demand (COD) removal of 96 while PM:Gly is ideal at ratio 0.6:1.4 with Fgas of 6.89 L/day and volatile solids (VS) removal of 94 .
| Original language | English |
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| Pages (from-to) | 17 - 26 |
| Number of pages | 10 |
| Journal | Journal of Engineering Science and Technology |
| Volume | 10 |
| Issue number | Special 8 |
| Publication status | Published - 2015 |