- Tytuł:
- The effect of the excess sludge pretreatment on biogas productivity
- Autorzy:
-
Bernat, Katarzyna
Zielińska, Magdalena
Kulikowska, Dorota
Cydzik-Kwiatkowska, Agnieszka
Wojnowska-Baryła, Irena
Waszczyłko-Miłkowska, Beata
Piotrowicz, Beata - Powiązania:
- https://bibliotekanauki.pl/articles/298334.pdf
- Data publikacji:
- 2019
- Wydawca:
- Uniwersytet Warmińsko-Mazurski w Olsztynie
- Tematy:
-
biogas production
sludge pretreatment
activated sludge
aerobic granular sludge
ultrasound disintegration
homogenization - Opis:
- To intensify biogas production during anaerobic stabilization of organic matter in sludge, pretreatment is applied. The effect of pretreatment of excess activated sludge (AS) and excess aerobic granular sludge (GS) on biogas productivity (BP) and composition was investigated. The sludge was pretreated with homogenization (6,500 rpm for 0.5 min (H0.5) and 1 min (H1.0)) or ultrasound disintegration at 20 kHz (50% amplitude for 2 min (D50%_2.0) and 4 min (D50%_4.0), and 100% amplitude for 4 min (D100%_4.0)). BP of AS of GS without pretreatment was 603.3±5 dm3/kg TS (793.4±7 dm3/kg VS); that was 200.6±4 dm3/kg TS (480.8±6 dm3/kg VS). With disintegration, the BP of AS increased by 7.8% (650.4±10 dm3/kg TS) (D50%_2.0) and 16.1% (700.6±11 dm3/kg TS) (D100%_4.0), and that of GS increased by 7.0% (214.0±5 dm3/kg TS) (D50%_2.0) and 16.0% (232.8±5 dm3/kg TS) (D100%_4.0). With homogenization, BP increased by 2.0-3.0% (AS) and 1.6-3.2% (GS).
- Źródło:
-
Technical Sciences / University of Warmia and Mazury in Olsztyn; 2019, 22(1); 75-86
1505-4675
2083-4527 - Pojawia się w:
- Technical Sciences / University of Warmia and Mazury in Olsztyn
- Dostawca treści:
- Biblioteka Nauki
Artykuł