Examinando por Autor "Wills, B. A. (Beatriz Amparo)"

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  • Miniatura
    PublicaciónAcceso abierto
    Evaluación de un clarificador de manto de lodos a escala de laboratorio
    (2013-11-20) Wills, B. A. (Beatriz Amparo); Castro-Jiménez, C. C. (Camilo César); Correa, M. A. (Mauricio Andrés)
    In this paper, we report the results for the operation and performance of a laboratory-scale clarifier sludge blanket suspension hydraulic, through a series of experiments that used a 23 factorial design. Factors in the design included: turbidity of raw water, hydraulic load rate and type of coagulant. These factors could affect the formation of a blanket, and therefore, the system’s efficiency on the removing turbidity. Two types of coagulants –aluminum sulfate and C-325 (a cationic polymer)– were tested in two types of synthetic raw water prepared in the laboratory through the addition of kaolin with high (Type I with 100 NTU) and low (Type II with 15 NTU) turbidity. The system was operated with surface load rates of 30 and 70 m3/m2.day. Results show that the best blanket was generated when the system was operated with Type I water and a hydraulic load rate of 70 m3/ m2.day, with turbidity values in the effluent below 2 NTU.
  • Miniatura
    PublicaciónAcceso abierto
    Propuesta metodológica para la evaluación de sistemas de tratamiento de aguas residuales domésticas en el sitio de origen
    (2013-11-25) Wills, B. A. (Beatriz Amparo); Vélez, S. (Santiago); Arboleda, A. F. (Andrés Felipe); Garcés, J. P. (Juan Pablo)
    A method for the evaluation of domestic onsite wastewater treatment systems is proposed. It allows establishing, in a representative way, the performance of these systems ensuring, by the use of two homogenization units, that all pollutant loads generated in the house will be present in the composed sample to be analyzed in the laboratory.