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Anaerobic digestion of sugar beet pulp after acid thermal and alkali thermal pretreatments
- Publication Year :
- 2022
- Publisher :
- Springer Berlin Heidelberg, 2022.
-
Abstract
- In this study, biogas production was investigated in mesophilic conditions from sugar beet pulp (SBP). In untreated conditions, water dissolution rate was 15.5% and biogas production rate was 168.7 mL/g TS (total solid). Alkaline thermal pretreatments were applied at 100 °C with 3 N NaOH and KOH solutions. Amounts of alkaline and acid were added in an amount equal to 5%, 10%, 15%, 20%, and 30% of the solids in the reactor. Acid thermal pretreatments were applied at 100 °C with 5% (v/v) H2SO4 and HNO3 solutions. The anaerobic digestion (AD) time was shortened by approximately 10 days after pretreatment. The highest biogas yield was 458.4 mL/g TS as a result of KOH thermal pretreatment. In this reactor, soluble chemical oxygen demand (sCOD) removal was 87.1%, and cellulose, hemicellulose, and lignin removals were 32.4%, 28.6%, and 33.5% w/w, respectively. It was observed that the cumulative biogas production (CBP) successfully fitted the modified Richards (MR) model and modified Gompertz (MG) model. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature. Sivas Cumhuriyet Üniversitesi: CUBAP-M-665 The financial support of this study was provided by the scientific research projects unit of the Cumhuriyet University (CUBAP-M-665). We would like to thank you for your contribution to the related institution.
- Subjects :
- 020209 energy
Modified Richards model
Biogas
02 engineering and technology
010501 environmental sciences
engineering.material
Modified Gompertz model
01 natural sciences
chemistry.chemical_compound
Anaerobic digestion
0202 electrical engineering, electronic engineering, information engineering
Biogas .Anaerobicdigestion .Alkalinethermalpretreatment .Acidthermalpretreatment .ModifiedRichardsmodel . ModifiedGompertzmodel
Hemicellulose
Cellulose
Acid thermal pretreatment
0105 earth and related environmental sciences
Alkaline thermal pretreatment
biology
Renewable Energy, Sustainability and the Environment
Pulp (paper)
Chemical oxygen demand
biology.organism_classification
chemistry
engineering
Sugar beet
Mesophile
Nuclear chemistry
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....1548258d55bf2cb6378953fd25a2eb50