Aerobic composting and anaerobic digestion of pulp and paper mill sludges
Jokela, J., Rintala, J., Oikari, A., Reinikainen, O., Mutka, K., & Nyrönen, T. (1997). Aerobic composting and anaerobic digestion of pulp and paper mill sludges. Water science and technology, 36(11), 181-188. https://doi.org/10.1016/S0273-1223(97)00680-X
Published in
Water science and technologyAuthors
Date
1997Copyright
© 1997 IWA Publishing
2022:22 | 2023:70 | 2024:78 | 2025:1
The feasibility of aerobic vessel composting and anaerobic digestion for the treatment of pulp and paper mill sludges were studied. The composting studies made use of primary and secondary sludge from a de-inking and paper mill. In six parallely aerated 500 1 vessels with various carbon : nitrogen (C:N) -ratios, the most optimal performance was obtained with C:N -ratios of c. 22–35, while higher and lower ratios delayed the temperature increase. With the optimal ratios, the thermophilic stage was reached within 36 h, and the stage lasted for about seven days. In the scale-up study (18 m3 compost vessel), the thermophilic stage was reached within 24 h. An effective dehydratation of the mass was obtained as the total solids (TS) content of the compost increased from 31.3– to 63.8– within 21 days. The anaerobic digestion of pulp and paper mill sludges was studied using two mesophilic 5 1 digesters, their feed sludges consisting of a mixture of municipal sewage sludge and primary and secondary sludge from a pulp and paper mill. With this feed mixture and with a loading rate of about 1.0 kg volatile solids (VS)/m3d a removal of about 27 to 40– VS and methane production of about 180 1/kgVSadded feed sludge were achieved during the 80 d study period. The study showed that pulp and paper mill sludges are amenable to both aerobic composting and anaerobic digestion.
...
Publisher
IWA publishingISSN Search the Publication Forum
0273-1223Keywords
Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/16062473
Metadata
Show full item recordCollections
License
Related items
Showing items with similar title or keywords.
-
Biogas production from meat and pulp and paper industry by-products
Bayr, Suvi (University of Jyväskylä, 2014) -
Effects of biochar addition on anaerobic digestion and comparison of different biochar qualities
Sinervo, Riku (2017)Tässä pro gradu -työssä tutkittiin, voidaanko anaerobisen mädätyksen toimintaa parantaa lisäämällä mädätysprosessiin pieniä määriä biohiiltä. Anaerobista mädätystä tutkittiin laboratoriomittakaavan biokaasukokeilla, joissa ... -
Risk of Invasive Lupinus polyphyllus Seed Survival in Biomass Treatment Processes
Hassani, Marjaana; Vallius, Elisa; Rasi, Saija; Sormunen, Kai (MDPI AG, 2021)Invasive plant species threaten native species and habitats causing ecologic, economic and social burden. When creating climate friendly solutions by utilizing plant biomasses in biogas and fertilizer production, safety ...