Wastewater treatment using activated sludge on a laboratory scale
The experiment was carried out at the laboratory scale. For this purpose a system with 6 mini reactors was designed, adapted from the literature. The used equations were deduced from the Eckenfelder (1970) and Metcalf & Eddy (1998) proceedings. The kinetics constants of biological growth at...
| Autores: | , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2004 |
| País: | Perú |
| Recursos: | Universidad Nacional Mayor de San Marcos |
| Repositorio: | Revistas - Universidad Nacional Mayor de San Marcos |
| Idioma: | español |
| OAI Identifier: | oai:revistasinvestigacion.unmsm.edu.pe:article/734 |
| Acesso em linha: | https://revistasinvestigacion.unmsm.edu.pe/index.php/iigeo/article/view/734 |
| Access Level: | acceso abierto |
| Palavra-chave: | Wastewater treatment activate sludge kinetic constants biomass laboratory scale Tratamiento de aguas residuales lodos activados constantes cinéticas biomasa escala de laboratorio |
| Resumo: | The experiment was carried out at the laboratory scale. For this purpose a system with 6 mini reactors was designed, adapted from the literature. The used equations were deduced from the Eckenfelder (1970) and Metcalf & Eddy (1998) proceedings. The kinetics constants of biological growth at laboratory level were obtained using the activated sludge method. The obtained kinetic constants with synthetic wastewater were: a: 0,8763 (Parameter of oxygen utilization to substrate oxidation). b: 0,0744 (Parameter of oxygen utilization to substrate oxidation in the endogenous respiration). Y: 0,0494 (Ratio of the mass of cells formed to the mass of substrate consumed). kd: 0,00048 d-1 (Endogenous decay coefficient). k: 0,0025 h-1.L/mg (Velocity constant of substrate utilization). The wastewater were supplied to each mini reactor trough a dosificator and a peristaltic pump. It was found difficulty in the water flow distribution. It is recommended to carry out the experiment, pumping wastewater with a peristaltic pump to each mini reactor, because the used dosificator got obstructed frequently. |
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