Deployment of temperature-specific thermal hydrolysis pretreatment in anaerobic co-digestion of sewage sludge and food waste could augment the economic benefits
Chemical Engineering Journal, ISSN: 1385-8947, Vol: 502, Page: 157835
2024
- 14Captures
Metric Options: Counts1 Year3 YearSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Metrics Details
- Captures14
- Readers14
- 14
Article Description
Anaerobic co-digestion (AcoD) is an increasingly attractive option for treating the regional organic fraction of municipal solid waste, including sewage sludge (SS) and food waste (FW). Given the differences in organic components and the effects of thermal hydrolysis pretreatment (THP) between SS and FW, this study avoids the limitations of single-temperature THP by proposing an innovative configuration of temperature-specific THP (S4: HTHP-SS + LTHP-FW). This process was compared with three other AcoD scenarios—SS + FW (S1), HTHP-SS + FW (S2), and SS + LTHP-FW (S3)—through exergy analysis and techno-economic evaluation, with the aim of improving the treatment efficiency and economic benefits of the AcoD. The results indicated that HTHP on SS and LTHP on FW respectively increased biogas recovery and waste oil extraction, making both effective strategies to improve chemical oxygen demand (COD) conversion efficiency in AcoD. Because of a high (74.5 %) COD conversion efficiency and the lower polymer consumption for sludge dewatering (a 26.7 % decrease from S1 levels), S4 yielded the maximum internal rate of return (11.18 %), shortest payback period (12.9 years), and highest net profit (19 USD/tonne-TS fed ). Additionally, thermal energy balance and exergy analysis indicated that all four scenarios were thermally self-sufficient, but S4 demonstrated the highest exergy efficiency of 44.2 %. Sensitivity and uncertainty analyses with Monte Carlo simulation revealed that S4 enhanced the risk resilience, resulting in an 87.7 % probability of achieving positive economic benefits, whereas S1’s probability was 31.8 %. In conclusion, this study providing essential economic insight into THP deployment for SS and FW AcoD engineering, supporting the establishment and advancement of centralized systems for treating municipal solid waste.
Bibliographic Details
Elsevier BV
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know