Estimating Sludge Deposition on the Heat Exchanger in the Digester of a Biogas Plant DOI Open Access
Tomasz Janusz Teleszewski, Leszek Hożejowski

Sustainability, Journal Year: 2024, Volume and Issue: 16(18), P. 7981 - 7981

Published: Sept. 12, 2024

The presented research addresses a problem occurring in biogas plant, which we know plays an important role sustainable development. sludge deposited on the walls of digester’s heat exchanger impairs transfer to substrate. It leads temperature drop inside plant and threatens its correct operation. thickness layer cannot be directly measured when is operating. Therefore, aim this work was develop then validate method for estimating, based operating parameters exchanger, give theoretical foundations designing automatic monitoring system. Two mathematical models (and methods) were developed: one- two-dimensional. former model solved analytically while latter by Trefftz method. numerical results from these two approaches showed very good agreement with each other actual measurement taken after removing substrate fermentation chamber. According calculation results, growth linear time, rate 0.0064 mm per day. Finally, schematic diagram intended system proposed. could optimize operation thus become step towards more energy production.

Language: Английский

Utilization of Municipal Biowaste‐Derived Compounds to Reduce Soilborne Fungal Diseases of Tomato: A Further Step Toward Circular Bioeconomy DOI Creative Commons

I. Castello,

Andrea Baglieri, Enzo Montoneri

et al.

GCB Bioenergy, Journal Year: 2025, Volume and Issue: 17(4)

Published: March 12, 2025

ABSTRACT A crucial point for the ecological transition toward a circular bioeconomy is represented by utilization of municipal biowaste novel uses in agriculture. Thus, vitro and vivo performance oxidized biopolymers (Ox BPs) obtained from organic fraction waste was evaluated against Rhizoctonia root rot southern blight tomato ( Solanum lycopersicum L.). Further, selectivity these on young seedlings. Effects Ox BPs were tested at 100, 1000, 5000 μg mL −1 reducing solani Sclerotium rolfsii mycelial growth decreasing relative infections tomato. The effective concentrations able to reduce 50% 95% (EC 50 EC 95 ) calculated according logit models minimum inhibitory (MIC) about 434, 4550, S. , whereas it possible calculate only (about 788 R. . In regard experiments, BP ppm achieved good reductions both fungal ranging 62% up almost 90%, phytotoxic effects not detected seedlings 3–4 4–5 true leaf stages. To authors' knowledge, this first report antifungal globally widespread soilborne diseases without detrimental host crop. However, further studies are needed confirm data; paper presents starting an eco‐friendly disease management approach recycling (organic C) biowastes within framework self‐sustainable ecosystem.

Language: Английский

Citations

2
A methodological framework for the implementation of urban living lab on circular economy co-design activities DOI Creative Commons
Carolina Innella, Giuliana Ansanelli, Grazia Barberio

et al.

Frontiers in Sustainable Cities, Journal Year: 2024, Volume and Issue: 6

Published: June 11, 2024

Circular Economy (CE) has the potential to tackle many of challenges we are facing nowadays. It represents nothing less than a paradigm shift, as closing and shortening material loops means adopting completely new ways producing consuming. In European Union, CE is key strategy achieve climate neutrality target by 2050, face biodiversity crisis, guarantee economic growth social wellbeing, within planet boundaries, in accordance with UN Sustainable Development Goals. Stakeholders’ engagement crucial point transition pathway based on systemic approach through co-creation process. Urban areas main field circular process which all urban actors, i.e., public institutions, academic research bodies, operators, citizens civil organizations, involved. An effective operational tool realize stakeholders’ involvement processes methodological Living Labs (ULLs). Although ULLs have already been tested implemented worldwide, there no description step-by-step methodology implement aimed at project ideas CE, be realized specific territory. This paper aims define framework for implementing focused co-designing activities. The proposed four phases: (i) scouting analysis territorial context, (ii) listening exploration, (iii) participation, (iv) execution. A detailed each phase well first application this different communities presented.

Language: Английский

Citations

2
The Contribution of Biogas to the Electricity Supply Chain: An Italian Life Cycle Assessment Database DOI Creative Commons
Gabriella Fiorentino,

Amalia Zucaro,

Antonietta Cerbone

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(13), P. 3264 - 3264

Published: July 3, 2024

The transition towards energy efficiency measures and green sources is strongly fostered by the European Union. Italy among EU countries that have heavily invested in renewable sources, more than doubling their share gross final consumption. In particular, biogas has a pivotal role generation of electricity can also be upgraded into biomethane, with higher stable content. this study, sustainability supply chain from been thoroughly analyzed broader framework ARCADIA (Life Cycle Approach Public Procurement Italian LCA Database for Resource Efficiency) project. environmental assessment, carried out means Life Assessment (LCA), provides two-fold perspective. Firstly, it allows us to identify main hotspots investigated system, such as cultivation dedicated crops, provide useful insights improving performance. Furthermore, focus on modeling dataset related production within mix represents step ahead research, filling lack site-specific databases reliable results.

Language: Английский

Citations

1
Determining biomethane potential from animal-source industry wastes by anaerobic digestion: A Case Study from La Rioja, Spain DOI
Pedro Muñoz, Carlos González-Menorca, Rebeca Sánchez‐Vázquez

et al.

Renewable Energy, Journal Year: 2024, Volume and Issue: 235, P. 121175 - 121175

Published: Aug. 30, 2024

Language: Английский

Citations

1
Estimating Sludge Deposition on the Heat Exchanger in the Digester of a Biogas Plant DOI Open Access
Tomasz Janusz Teleszewski, Leszek Hożejowski

Sustainability, Journal Year: 2024, Volume and Issue: 16(18), P. 7981 - 7981

Published: Sept. 12, 2024

The presented research addresses a problem occurring in biogas plant, which we know plays an important role sustainable development. sludge deposited on the walls of digester’s heat exchanger impairs transfer to substrate. It leads temperature drop inside plant and threatens its correct operation. thickness layer cannot be directly measured when is operating. Therefore, aim this work was develop then validate method for estimating, based operating parameters exchanger, give theoretical foundations designing automatic monitoring system. Two mathematical models (and methods) were developed: one- two-dimensional. former model solved analytically while latter by Trefftz method. numerical results from these two approaches showed very good agreement with each other actual measurement taken after removing substrate fermentation chamber. According calculation results, growth linear time, rate 0.0064 mm per day. Finally, schematic diagram intended system proposed. could optimize operation thus become step towards more energy production.

Language: Английский

Citations

1