Simultaneous biomethane production and nutrient remineralization from aquaculture solids DOI Creative Commons
Victor Lobanov, Jo De Vrieze, Alyssa Joyce

et al.

Aquacultural Engineering, Journal Year: 2023, Volume and Issue: 101, P. 102328 - 102328

Published: March 11, 2023

The rapid expansion of the aquaculture industry has brought about a heightened focus on waste produced by high intensity fish farming. In closed-containment, recirculating systems (RAS), solids are mechanically separated and/or coagulated before being disposed as waste. Subsequent revalorization is typically limited to direct dispersal onto agricultural fields. Here, we developed novel, continuous flow, low-cost treatment system for freshwater and saline RAS. Rotating drum filter backwash was collected primary feedstock anaerobic digestion. A laboratory scale set up used monitor conversion into methane-rich (60–80% purity) biogas stream. Iron supplementation (ferric iron at 100 mg/L 1000 mg/L) improved salt tolerance methanogenic community, leading higher methane yields in supplemented (FeCl3 than control. application additionally improves pH stability volatile fatty acid utilization. yield ranged from 0.1 0.4 NL CH4/ g VS across three treatments iron-supplemented treatment, however, it significantly lower saltwater control: ranging between 0.08 0.25 VS. These values correspond percentage 57–86% total biomethane potential. Overall, implementing digestion RAS valorization may generate significant amounts be electricity heating large-scale facilities, while even smaller facilities off-set costs mitigate environmental impacts streams.

Language: Английский

Anaerobic co-digestion of landfill leachate as main energy source DOI
Mehmet Sadık Akça, Gamze Ceylan-Perver,

Erol İren

et al.

International Journal of Environmental Science and Technology, Journal Year: 2024, Volume and Issue: 21(9), P. 6871 - 6890

Published: Feb. 8, 2024

Language: Английский

Citations

2
Optimization of methane production from solid tuna waste: Thermal pretreatment and co-digestion DOI Creative Commons

Noela Bermúdez-Penabad,

Andrea Rodríguez-Montes, M. M. Alves

et al.

Waste Management, Journal Year: 2024, Volume and Issue: 177, P. 203 - 210

Published: Feb. 9, 2024

Fish canning industries generate large amounts of solid waste during their processing operations, creating a significant environmental challenge. Nonetheless, this can be efficiently and sustainably treated through anaerobic digestion. In study, the potential biogas production from digestion thermally pretreated co-digested tuna was investigated. The thermal pretreatment raw fish viscera resulted in 50 % increase methane yield, with 0.27 g COD-CH

Language: Английский

Citations

2
Impacts of polluted water discharged by the fishing-related industry on fisheries resources and economic development in an R&D-based growth model DOI Creative Commons
Yoshihiro Hamaguchi

Sustainable Environment, Journal Year: 2024, Volume and Issue: 10(1)

Published: Aug. 2, 2024

The growing demand for food owing to population growth has led an increased need fishery resources. Governments worldwide have introduced individual transferable quota (ITQ) systems manage the resource depletion crisis. However, grandfathered quotas are a potential rent fisherpersons, leading seeking through lobbying. This could exacerbate conservation function of ITQ system. Even if stock levels restored ITQs, fish processing industry discharges sewage during production process, deterioration. In blue economy, where various economic actors involved with ocean, what measures should be implemented achieve sustainable fisheries? To respond this challenge, study analyzes effects reduced catch and fishing seasons on resources, growth, welfare in R&D-based model processed products, considering ITQs. Fish damage parameter magnitude impact increase, reductions that initially promoted begin harm recovery. Shortening season leads trade-off between recovery deterioration welfare. Hence, it is difficult by simply reducing ITQs seasons. suggests that, when counterintuitive taken raise somewhat, lowering substantial increases likelihood achieving fishery.

Language: Английский

Citations

2
The Promotion of Anaerobic Digestion Technology Upgrades in Waste Stream Treatment Plants for Circular Economy in the Context of “Dual Carbon”: Global Status, Development Trend, and Future Challenges DOI Open Access
Xuan Huang

Water, Journal Year: 2024, Volume and Issue: 16(24), P. 3718 - 3718

Published: Dec. 23, 2024

This review provides a comprehensive overview of the advancements and challenges anaerobic digestion technology in waste stream treatment plants under framework circular economy, emphasizing its role achieving “dual carbon” goals. As climate change intensifies, with contributing significantly to global emissions, there is pressing need optimize energy efficiency reduce carbon outputs this sector. Anaerobic highlighted as solution for converting organic into renewable biogas digestate, enabling self-sufficiency reducing greenhouse gasses. The study highlights that enables conversion nutrient-rich facilitating significant reductions GHG emissions. Successful implementations, such Weifang, China, demonstrate feasibility upgrading biomethane local use. Advanced technologies like bioelectrochemical methanation membrane bioreactors enhance production efficiency, while co-digestion proves effective even challenging conditions. Despite these advancements, identifies critical challenges, including high investment costs, technical inefficiencies, regulatory barriers, particularly developing countries. insights integrating economy principles offers foundation future policies research aimed at neutrality sustainable management.

Language: Английский

Citations

2
Simultaneous biomethane production and nutrient remineralization from aquaculture solids DOI Creative Commons
Victor Lobanov, Jo De Vrieze, Alyssa Joyce

et al.

Aquacultural Engineering, Journal Year: 2023, Volume and Issue: 101, P. 102328 - 102328

Published: March 11, 2023

The rapid expansion of the aquaculture industry has brought about a heightened focus on waste produced by high intensity fish farming. In closed-containment, recirculating systems (RAS), solids are mechanically separated and/or coagulated before being disposed as waste. Subsequent revalorization is typically limited to direct dispersal onto agricultural fields. Here, we developed novel, continuous flow, low-cost treatment system for freshwater and saline RAS. Rotating drum filter backwash was collected primary feedstock anaerobic digestion. A laboratory scale set up used monitor conversion into methane-rich (60–80% purity) biogas stream. Iron supplementation (ferric iron at 100 mg/L 1000 mg/L) improved salt tolerance methanogenic community, leading higher methane yields in supplemented (FeCl3 than control. application additionally improves pH stability volatile fatty acid utilization. yield ranged from 0.1 0.4 NL CH4/ g VS across three treatments iron-supplemented treatment, however, it significantly lower saltwater control: ranging between 0.08 0.25 VS. These values correspond percentage 57–86% total biomethane potential. Overall, implementing digestion RAS valorization may generate significant amounts be electricity heating large-scale facilities, while even smaller facilities off-set costs mitigate environmental impacts streams.

Language: Английский

Citations

6