| Revista: | Brazilian journal of chemical engineering |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000309046 |
| ISSN: | 0104-6632 |
| Autores: | Miranda, L.A.S1 Henriques, J.A.P Monteggia, L.O2 |
| Instituciones: | 1Universidade Federal do Rio Grande do Sul, Centro de Biotecnologia, Porto Alegre, Rio Grande do Sul. Brasil 2Universidade Federal do Rio Grande do Sul, Instituto de Pesquisa Hidraulica, Porto Alegre, Rio Grande do Sul. Brasil |
| Año: | 2005 |
| Periodo: | Dic |
| Volumen: | 22 |
| Número: | 4 |
| Paginación: | 601-610 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | This paper discusses the performance of an 800m³ full-scale UASB reactor in treating meat-packing plant and slaughterhouse effluents containing high concentrations of oil and grease (O&G) (413-645 mg/L), resulting in a COD/O&G ratio of 26-32%. Those macromolecules were considered responsible for the unbalance of the system resulting in a total washout of the biomass. The removal of O&G from the influent using a physicochemical system (coagulation-flocculation) improved the physical characteristics of the anaerobic sludge, controlling the biomass washout. Reactor performance was significantly improved when the COD/O&G ratio influent was maintained in the 10%. The COD and O&G removal rates obtained after implantation of the physicochemical system were 70-92% and 27-58%, respectively. The specific methanogenic activity (SMA) of the biomass shows towards a tendency stabilisation and adaptation to the substrate influent. Pretreatment of the influent allowed the maximum organic load to be increased (1.46 to 2.43 Kg COD/m³.d) and improved the quality of the effluent |
| Disciplinas: | Química |
| Palabras clave: | Química de alimentos, Rastros, Aguas residuales, Aceite, Grasa animal, Digestión anaeróbica, Actividad metanogénica específica, Reactor UASB |
| Keyword: | Chemistry, Food chemistry, Slaughterhouses, Waste water, Oil, Animal fat, Anaerobic digestion, Specific methanogenic activity, UASB reactor |
| Texto completo: | Texto completo (Ver HTML) |
