Cargando…
Sewage Sludge Management at District Level: Reduction and Nutrients Recovery via Hydrothermal Carbonization
In this study, two scenarios of a municipal wastewater treatment plant (WWTP) are presented, which include the integration of the hydrothermal carbonization (HTC) process into the sludge line as a post-treatment of the anaerobic digestion (AD) process. The objective of the simulation is to investiga...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Netherlands
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9532233/ https://www.ncbi.nlm.nih.gov/pubmed/36212777 http://dx.doi.org/10.1007/s12649-022-01943-2 |
_version_ | 1784802074890862592 |
---|---|
author | Scrinzi, D. Ferrentino, R. Baù, E. Fiori, L. Andreottola, G. |
author_facet | Scrinzi, D. Ferrentino, R. Baù, E. Fiori, L. Andreottola, G. |
author_sort | Scrinzi, D. |
collection | PubMed |
description | In this study, two scenarios of a municipal wastewater treatment plant (WWTP) are presented, which include the integration of the hydrothermal carbonization (HTC) process into the sludge line as a post-treatment of the anaerobic digestion (AD) process. The objective of the simulation is to investigate the performances of AD + HTC treatment to reduce sludge production and improve nutrient and energy recovery. For this purpose, the scheme of an under-construction WWTP was considered, named Trento 3 (Trento, Italy) and with a treatment capacity of 300,000 PE. In the first scenario, the HTC process was fed with thickened sludge from the Trento 3 WWTP, while in the second scenario, dewatered sludge from other local WWTPs was also used as feedstock for the HTC process. Both scenarios allowed to obtain a considerable sludge reduction ranging from 70 to 75% with a notably increase in the biogas production up to 47%, due to the recycling of HTC liquor (HTCL) to the anaerobic digester. Considering nutrients recovery, all the phosphorus and nitrogen present in the HTCL could be used for struvite precipitation with an average yearly gain of 1 million euros. Moreover, the introduction of HTC in the Trento 3 WWTP could allow a reduction in the sludge management costs of up to 2 M€/year. GRAPHICAL ABSTRACT: [Image: see text] |
format | Online Article Text |
id | pubmed-9532233 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Springer Netherlands |
record_format | MEDLINE/PubMed |
spelling | pubmed-95322332022-10-05 Sewage Sludge Management at District Level: Reduction and Nutrients Recovery via Hydrothermal Carbonization Scrinzi, D. Ferrentino, R. Baù, E. Fiori, L. Andreottola, G. Waste Biomass Valorization Original Paper In this study, two scenarios of a municipal wastewater treatment plant (WWTP) are presented, which include the integration of the hydrothermal carbonization (HTC) process into the sludge line as a post-treatment of the anaerobic digestion (AD) process. The objective of the simulation is to investigate the performances of AD + HTC treatment to reduce sludge production and improve nutrient and energy recovery. For this purpose, the scheme of an under-construction WWTP was considered, named Trento 3 (Trento, Italy) and with a treatment capacity of 300,000 PE. In the first scenario, the HTC process was fed with thickened sludge from the Trento 3 WWTP, while in the second scenario, dewatered sludge from other local WWTPs was also used as feedstock for the HTC process. Both scenarios allowed to obtain a considerable sludge reduction ranging from 70 to 75% with a notably increase in the biogas production up to 47%, due to the recycling of HTC liquor (HTCL) to the anaerobic digester. Considering nutrients recovery, all the phosphorus and nitrogen present in the HTCL could be used for struvite precipitation with an average yearly gain of 1 million euros. Moreover, the introduction of HTC in the Trento 3 WWTP could allow a reduction in the sludge management costs of up to 2 M€/year. GRAPHICAL ABSTRACT: [Image: see text] Springer Netherlands 2022-10-05 /pmc/articles/PMC9532233/ /pubmed/36212777 http://dx.doi.org/10.1007/s12649-022-01943-2 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Original Paper Scrinzi, D. Ferrentino, R. Baù, E. Fiori, L. Andreottola, G. Sewage Sludge Management at District Level: Reduction and Nutrients Recovery via Hydrothermal Carbonization |
title | Sewage Sludge Management at District Level: Reduction and Nutrients Recovery via Hydrothermal Carbonization |
title_full | Sewage Sludge Management at District Level: Reduction and Nutrients Recovery via Hydrothermal Carbonization |
title_fullStr | Sewage Sludge Management at District Level: Reduction and Nutrients Recovery via Hydrothermal Carbonization |
title_full_unstemmed | Sewage Sludge Management at District Level: Reduction and Nutrients Recovery via Hydrothermal Carbonization |
title_short | Sewage Sludge Management at District Level: Reduction and Nutrients Recovery via Hydrothermal Carbonization |
title_sort | sewage sludge management at district level: reduction and nutrients recovery via hydrothermal carbonization |
topic | Original Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9532233/ https://www.ncbi.nlm.nih.gov/pubmed/36212777 http://dx.doi.org/10.1007/s12649-022-01943-2 |
work_keys_str_mv | AT scrinzid sewagesludgemanagementatdistrictlevelreductionandnutrientsrecoveryviahydrothermalcarbonization AT ferrentinor sewagesludgemanagementatdistrictlevelreductionandnutrientsrecoveryviahydrothermalcarbonization AT baue sewagesludgemanagementatdistrictlevelreductionandnutrientsrecoveryviahydrothermalcarbonization AT fioril sewagesludgemanagementatdistrictlevelreductionandnutrientsrecoveryviahydrothermalcarbonization AT andreottolag sewagesludgemanagementatdistrictlevelreductionandnutrientsrecoveryviahydrothermalcarbonization |