The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.
Increasing biogas production by thermal (70°C) sludge pre-treatment prior to thermophilic anaerobic digestion
Open accessAbstract
The objective of this work was to investigate the effect of a low temperature pre-treatment (70 ◦ C) on the efficiency of thermophilic anaerobic digestion of primary and secondary waste sludge. Firstly, effect of sludge pre-treatment time (9, 24, 48 and 72 h) was evaluated by the increase in volatile dissolved solids (VDSs), volatile fatty acids (VFAs) and biogas production in thermophilic batch tests. Secondly, semi-continuous process performance was studied in a lab-scale reactor (5 L) working at 55 ◦C and 10 days solid retention time. The 70 ◦ C pre-treatment showed an initial solubilization effect (increasing VDS by almost 10 times after 9 h), followed by a progressive generation of VFA (from 0 to nearly 5 g L−1 after 72 h). Biogas production increased up to 30% both in batch tests and in semi-continuous experiments. Our results suggest that a short period (9 h) low temperature pre-treatment should be enough to enhance methane production through thermophilic anaerobic digestion of sludge.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Standard methods: For the examination of water and waste water
(1990) · Analytical Biochemistry · doi:10.1016/0003-2697(90)90598-4 · Cited by 72,091
Standard Methods for the Examination of Water and Wastewater
Jenkins, S. H. (1982) · Water Research · doi:10.1016/0043-1354(82)90249-4 · Cited by 30,002
Hydrolysis kinetics in anaerobic degradation of particulate organic material: An overview
Vavilin, V. A., Fernandez, B., Palatsi, J., & Flotats, X. (2008) · Waste Management · doi:10.1016/j.wasman.2007.03.028 · Cited by 692
Bougrier, C., Albasi, C., Delgenès, J. P., & Carrère, H. (2006) · Chemical Engineering and Processing: Process Intensification · doi:10.1016/j.cep.2006.02.005 · Cited by 619
Bioeffects of microwave––a brief review
Banik, S., Bandyopadhyay, S., & Ganguly, S. (2003) · Bioresource Technology · doi:10.1016/s0960-8524(02)00169-4 · Cited by 473
Gavala, H. N., Yenal, U., Skiadas, I. V., Westermann, P., & Ahring, B. K. (2003) · Water Research · doi:10.1016/s0043-1354(03)00401-9 · Cited by 442
Upgrading of Anaerobic Digestion of Waste Activated Sludge by Thermal Pretreatment
Li, Y. Y., & Noike, T. (1992) · Water Science and Technology · doi:10.2166/wst.1992.0466 · Cited by 394
Valo, A., Carrère, H., & Delgenès, J. P. (2004) · Journal of Chemical Technology & Biotechnology · doi:10.1002/jctb.1106 · Cited by 357
Climent, M., Ferrer, I., Baeza, M. D. M., Artola, A., Vázquez, F., & Font, X. (2007) · Chemical Engineering Journal · doi:10.1016/j.cej.2007.02.020 · Cited by 344
Self-citationEvaluation of current wet sludge disintegration techniques
Weemaes, M. P. J., & Verstraete, W. H. (1998) · Journal of Chemical Technology & Biotechnology · doi:10.1002/(sici)1097-4660(1998100)73:2<83::aid-jctb932>3.0.co;2-2 · Cited by 323
Cited by
Pretreatment methods to improve sludge anaerobic degradability: A review
Carrère, H., Dumas, C., Battimelli, A., Batstone, D. J., Delgenès, J. P., Steyer, J. P., & Ferrer, I. (2010) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2010.06.129 · Cited by 1,203
Self-citationPretreatment methods to enhance anaerobic digestion of organic solid waste
Ariunbaatar, J., Panico, A., Esposito, G., Pirozzi, F., & Lens, P. N. L. (2014) · Applied Energy · doi:10.1016/j.apenergy.2014.02.035 · Cited by 930
Enhancement of methane production in anaerobic digestion process: A review
Li, Y., Chen, Y., & Wu, J. (2019) · Applied Energy · doi:10.1016/j.apenergy.2019.01.243 · Cited by 874
A Review of the Processes, Parameters, and Optimization of Anaerobic Digestion
Meegoda, J. N., Li, B., Patel, K., & Wang, L. B. (2018) · International Journal of Environmental Research and Public Health · doi:10.3390/ijerph15102224 · Cited by 721
Enhanced anaerobic digestion of waste activated sludge digestion by the addition of zero valent iron
Feng, Y., Zhang, Y., Quan, X., & Chen, S. (2014) · Water Research · doi:10.1016/j.watres.2013.10.072 · Cited by 638
Metadata
- Authors
- Ferrer, I., Ponsá, S., Vázquez, F., & Font, X.
- Venue
- Biochemical Engineering Journal
- Publisher
- Elsevier BV
- Published
- 2008-11
- Volume
- 42
- Issue
- 2
- Pages
- 186-192
- ISSN
- 1369-703X (ISSN-L)
- OpenAlex
- W2123953876
- Cited by
- 285
- References
- 23
- FWCI
- 35.15
- Type
- journal article
- Language
- en
- Open access
- green
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Increasing biogas production by thermal (70°C) sludge pre-treatment prior to thermophilic anaerobic digestion. https://app.cochat.ai/papers/10.1016/j.bej.2008.06.020
- The paper
- Ferrer, I., Ponsá, S., Vázquez, F., & Font, X. (2008). Increasing biogas production by thermal (70°C) sludge pre-treatment prior to thermophilic anaerobic digestion. Biochemical Engineering Journal. https://doi.org/10.1016/j.bej.2008.06.020
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.