Advancing wastewater management and resource recovery through mainstream liquid anaerobic co-digestion of wastewater and organic waste
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| Autores: | , , , , |
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| Fecha de Publicación: | 2025 |
| Descripción: | The management of wastewater (WW) and organic waste (OW) has emerged as a critical environmental concern, particularly in developing countries where the disposal of these waste streams continues to represent a significant global environmental challenge. Consequently, Liquid Anaerobic Co-Digestion (L-AcoD), an innovative process which involves the treatment of OW along with WW influent flow in anaerobic-based wastewater treatment plants (WWTPs), has emerged as a promising solution, enhancing methane (CH₄) production and optimising energy recovery. This study aimed to evaluate the feasibility of L-AcoD in increasing CH₄ yields, reducing emissions, and advancing energy self-sufficiency in anaerobic-based WWTPs. The experimental design was carried out to included two biochemical methane potential (BMP) tests, examining the effect of different WW:OW ratios (98:2, 97:3, 96:4 v/v) on methane yield. The first experiment was conducted at 35 °C, while the second was conducted at room temperature (RT: 23.25 ± 0.592 °C). The key findings indicate that L-AcoD can significantly divert OW to WWTPs, resulting in an average CH4 yield that was up to 52 times higher than that from WW mono-digestion. In addition, the biodegradability of the waste was improved, and the energy self-sufficiency of the system was enhanced, with the potential to yield 22 kWh m−3 for each cubic meter at RT. |
| País: | Kérwá |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| Lenguaje: | Inglés |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/105326 |
| Acceso en línea: | https://hdl.handle.net/10669/105326 https://doi.org/10.1016/j.jwpe.2025.107493 |
| Palabra clave: | Wastewater Organic waste Methane production Co-digestion Liquid anaerobic co-digestion Energy assessment Sustainable development Waste treatment |