Management and valorization of waste from a non-centrifugal cane sugar mill via anaerobic co-digestion: Technical and economic potential
| Autor: | O. Mendieta, Jose M. Rodriguez, Humberto Escalante, L. Castro |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Crop residue Environmental Engineering Bioengineering 010501 environmental sciences 01 natural sciences Bioreactors Biogas Bioenergy 010608 biotechnology Anaerobiosis Cane Sugar Waste Management and Disposal 0105 earth and related environmental sciences biology Renewable Energy Sustainability and the Environment business.industry General Medicine biology.organism_classification Pulp and paper industry Renewable energy Anaerobic digestion Biofuel Biofuels Environmental science Canes business Sugars Methane |
| Zdroj: | Bioresource technology. 316 |
| ISSN: | 1873-2976 |
| Popis: | The main sugarcane wastes from the non-centrifugal cane sugar (NCS) agro-industry, agricultural crop residue (ACR) and sugarcane scum (SCS), were used to produce biogas in a bench-scale semi-continuous anaerobic tubular digester. A two-stage strategy was proposed to achieve the appropriate operability and stability of the digester. In the first stage, the operability of the digester was achieved with ACR mono-digestion. In the second stage, the digester feed was changed until it reached an ACR:SCS ratio (co-digestion) of 75:25, based on volatile solids, and until stability was achieved. The strategy was successful, and specific biogas production of 0.132 m3 kg−1VS with a methane content of 50.4% was achieved, confirming the technical feasibility of the process. Economic viability was established through a case study at a typical NCS mill. Therefore, anaerobic co-digestion can be consolidated as a technological alternative for the treatment of ACR + SCS and the sustainable benefit of the NCS agro-industry. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect