- Tytuł:
- Co-digestion of sewage sludge and mature landfill leachate in pre-bioaugmented system
- Autorzy:
- Montusiewicz, A.
- Powiązania:
- https://bibliotekanauki.pl/articles/124578.pdf
- Data publikacji:
- 2014
- Wydawca:
- Polskie Towarzystwo Inżynierii Ekologicznej
- Tematy:
-
anaerobic co-digestion
primary bioaugmentation
sewage sludge
mature landfill leachate
biogas/methane yields - Opis:
- The study examined the effects of co-digestion of sewage sludge and mature landfill leachate at the volumetric ratio of 95:5% in primarily bioaugmented system. Bioaug-mentation was carried out with the use of commercial product Arkea® in the volumet-ric dose of 5% and lasted three months prior to the co-digestion start-up. Co-digestion was undergone without bioaugmentation. The results indicated that in the first period (of three months) following bioaugmentation, co-digestion led to biogas/methane yields only 5-8% lower as compared to anaerobic digestion of sewage sludge, and the differences were not statistically significant. Moreover, a comparable value of vola-tile solids removal was obtained. However, the effects became worse over time, i.e. a lower organics removal efficiency of 16% as well as 9.5–13% decreases of biogas/ methane yields were achieved by applying co-digestion for a further period (of the same duration). Co-digestion of sewage sludge and mature landfill leachate could be recognized as quite efficient in the system that was primarily bioaugmented with the use of Arkea®. However, the beneficial impact of bioaugmentation remained for the limited period of three months after its completion. To sustain the favourable effects a periodical, repeatable bioaugmentation of the co-digestion system is required.
- Źródło:
-
Journal of Ecological Engineering; 2014, 15, 4; 98-104
2299-8993 - Pojawia się w:
- Journal of Ecological Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł