| Title | Managing anaerobic digestate from food waste in the urban environment: Evaluating the feasibility from an interdisciplinary perspective |
|---|---|
| ID_Doc | 26928 |
| Authors | Fuldauer, LI; Parker, BM; Yaman, R; Borrion, A |
| Title | Managing anaerobic digestate from food waste in the urban environment: Evaluating the feasibility from an interdisciplinary perspective |
| Year | 2018 |
| Published | |
| Abstract | Anaerobic digestion of food waste within urban areas can generate decentralised renewable energy and support community enterprise activities, thereby contributing to closing the waste-energy-food loop. However, widespread uptake of small-scale, urban anaerobic digestion networks is limited by economic costs and the safe disposal of surplus digestate. This paper uses an interdisciplinary approach to assess the feasibility of anaerobic digestate management through the installation of hydroponics or algae cultivation systems, based on a case study of a micro anaerobic digestion system in London, England. Results show that installing a dewatering sifter together with a hydroponics system is a technically and economically feasible option for digestate enhancement in the urban environment. Its installation is, however, not currently justified for the system under consideration due to cost, regulatory, spatial, and contextual constraints identified using actor-network analysis. Nevertheless, if regulatory and wider contextual issues are accommodated, and more than 30 L of digestate are produced daily, a dewatering and vertical hydroponic system could result in a profit of approximately E100,000 over 10 years. While the microalgal system was also able to upgrade digestate, at present productivity is too low and the capital cost of photobioreactor technology is prohibitively expensive. This underlines the need for technical improvements and low-cost enhancement options to achieve justifiable paybacks until regulatory reforms and the wider economic situation are more favourable to anaerobic digestion treatment within cities. (C) 2018 Elsevier Ltd. All rights reserved. |
Similar Articles
| ID | Score | Article |
|---|---|---|
23304
|
Ntostoglou, E; Khatiwada, D; Martin, V The Potential Contribution of Decentralized Anaerobic Digestion towards Urban Biowaste Recovery Systems: A Scoping Review(2021)Sustainability, 13, 23 | |
| 8593
|
Cecchi, F; Cavinato, C Smart Approaches to Food Waste Final Disposal(2019)International Journal Of Environmental Research And Public Health, 16.0, 16 | |
| 21097
|
Malhotra, M; Aboudi, K; Pisharody, L; Singh, A; Banu, JR; Bhatia, SK; Varjani, S; Kumar, S; González-Fernández, C; Kumar, S; Singh, R; Tyagi, VK Biorefinery of anaerobic digestate in a circular bioeconomy: Opportunities, challenges and perspectives(2022) | |
| 10389
|
Pérez-Camacho, MN; Curry, R; Cromie, T Life cycle environmental impacts of substituting food wastes for traditional anaerobic digestion feedstocks(2018) | |
| 29557
|
Blanken, M; Verweij, C; Mulder, K Why Novel Sanitary Systems are Hardly Introduced?(2019)Journal Of Sustainable Development Of Energy Water And Environment Systems-Jsdewes, 7.0, 1 | |
| 22196
|
Slorach, PC; Jeswani, HK; Cuéllar-Franca, R; Azapagic, A Environmental sustainability of anaerobic digestion of household food waste(2019) | |
| 15461
|
Weidner, T; Yang, AD The potential of urban agriculture in combination with organic waste valorization: Assessment of resource flows and emissions for two european cities(2020) | |
| 9380
|
Guan, DZ; Zhao, JW; Wang, YX; Fu, Z; Zhang, DL; Zhang, HW; Xie, JL; Sun, YJ; Zhu, JW; Wang, DB A critical review on sustainable management and resource utilization of digestate(2024) | |
| 29422
|
Lamolinara, B; Pérez-Martínez, A; Guardado-Yordi, E; Fiallos, CG; Diéguez-Santana, K; Ruiz-Mercado, GJ Anaerobic digestate management, environmental impacts, and techno-economic challenges(2022) | |
| 10539
|
Woon, KS; Phuang, ZX; Lin, ZC; Lee, CT A novel food waste management framework combining optical sorting system and anaerobic digestion: A case study in Malaysia(2021) |