| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1281733 | International Journal of Hydrogen Energy | 2013 | 8 Pages |
Activated sludge (AS) from wastewater treatment plant of brewery industry was used as substrate for hydrogen production by anaerobic mixed cultures in batch fermentation process. The AS (10% TS) was pretreated by acid, heat and combined acid and heat. Combined acid- heat treatment (0.5% (w/v) HCl, 110 °C, 60 min) gave the highest soluble COD (sCOD) of 1785.6 ± 27.1 mg/L with the highest soluble protein and carbohydrate of 8.1 ± 0.1 and 38.5 ± 0.8 mg/L, respectively. After the pretreatment, the pretreated sludge was used to produce hydrogen by heat treated upflow anaerobic sludge blanket (UASB) granules. A maximum hydrogen production potential of 481 mL H2/L was achieved from the AS pretreated with acid (0.5% (w/v) HCl) for 6 h.
► Activated sludge (AS) from wastewater treatment plant was used as the substrate. ► AS was pretreated by acid, heat and combined acid-heat before used. ► Combined acid-heat treatment gave the highest soluble COD of 1785.6 mg/L ► Protein and carbohydrate are the main soluble substrate after pretreatment. ► Ps of 481 mL H2/L was achieved from the AS pretreated with 5% w/v of HCl for 6 h.
