| Revista: | Brazilian archives of biology and technology |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000362785 |
| ISSN: | 1516-8913 |
| Autors: | Motteran, Fabricio1 Pereira, Erlon Lopes1 Campos, Claudio Milton Montenegro1 |
| Institucions: | 1Universidade Federal de Lavras, Departamento de Engenharia Agricola, Lavras, Minas Gerais. Brasil |
| Any: | 2013 |
| Període: | May-Jun |
| Volum: | 56 |
| Número: | 3 |
| Paginació: | 485-494 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | This work evaluated the potential of the acidification equalization tank (AET) used as a primary treatment unit, treating the hog farming wastewater. The treatment system consisted of a degritter with a triangular-notch weir, for measuring the flow, a static sieve, and an acidification and equalization tank (AET), an anaerobic baffled reactor (ABR), an upflow anaerobic sludge blanket (UASB) reactor, a settling tank, a greenhouse for fertirrigation and two infiltration ponds. The AET had a net capacity of 8,000 liters, internally covered with asphalt blanket, worked based on surface loading rates application. The unit operated continuously, with its flow varying from 0.1 to 10 L s-1. To determine the efficiency, the following parameters were measured: pH; COD; BOD; volatile and fixed solids; settleable solids; total, intermediate and partial alkalinity and total acidity. The COD removal varied from 5 to 20%. The average pH was 7.3 and the total, intermediate and partial alkalinity in the effluent, were 1919, 846, 1197 mg L-1, respectively. The total acidity in the effluent was 34 mg L-1. The influent and effluent total BOD and oil & grease concentrations were 3436 and 3443 mg L-1, and 415 and 668 mg L-1, respectively. It was found that the AET worked properly concerning the acidification, equalization and sedimentation processes, confirming low cost of implementation and easy operation, when compared to other traditional decanters |
| Disciplines | Medicina veterinaria y zootecnia, Ingeniería |
| Paraules clau: | Ingeniería ambiental, Granjas porcinas, Efluentes, Tratamiento de efluentes, Remoción de contaminantes, Materia orgánica, Tanques de acidificación |
| Keyword: | Veterinary medicine and animal husbandry, Engineering, Environmental engineering, Swine farms, Effluents, Effluent treatment, Pollutants removal, Organic matter, Acidification tanks |
| Text complet: | Texto completo (Ver HTML) |
