Examinando por Materia "TURBIEDAD"

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    PublicaciónAcceso abierto
    Control de fasciola hepatica en el agua de consumo animal a través de filtración rápida y lenta
    (2013-10-28) González-Morales, C. (Carolina); Sánchez, G. A. (Gladys Adriana); Castro-Jiménez, C. C. (Camilo César); Gómez-Carmona, C. (Catalina)
    The bovine fasciolosis is a zoonosis caused by Fasciola hepatica transmitted by consuming water and / or vegetables contaminated with the digenea. This disease causes significant economic losses in the dairy producer regions of Antioquia. In order to remove the eggs of the parasite from water, we designed and built two filters (rapid and slow filtration), using industrial sand as filter bed (effective size 0.45-0.55 mm). A rapid filtration system was evaluated at speeds of 5 and 8 m/h for a sand bed height of 60 cm and a slow filtration system at a speed of 1.46 m/h for sand bed heights of 30 and 40 cm. The variation of effluent flow and removal efficiency of both turbidity and parasite eggs were determined during the run of each filtration. The results show that all filters operating under the described features are 100% efficient in removing the F. hepatica eggs from the water. The turbidity removal percentages were 85.5% and 79.4% for filters operating at speeds of 5 m/h and 8 m/h respectively.
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    PublicaciónAcceso abierto
    Efecto del incremento en la turbiedad del agua cruda sobre la eficiencia de procesos convencionales de potabilización
    (2013-11-15) Montoya, C. (Carolina); Loaiza, D. (Diana); Torres, P. (Patricia); Cruz, Camilo H. (Camilo Hernán); Escobar, Juan Carlos
    Environmental phenomena cause a strong impact in the variation of the quality of sources for drinking water, demanding that potable water treatment processes respond to these changes and maintain quality standards in the production of safe drinking water. The historical analysis of river Cauca turbidity and behavior of clarified and filtrated water allowed evaluating the effect of increase in raw water turbidity over water treatment conventional processes of Puerto Mallarino plant at Cali (Colombia). It was determined that the high turbidity of the water of river affected the treatment efficiency and also the quality of treated water; filtration was the most vulnerable stage to these high turbidity events. A high linear correlation between maximum turbidity and chemical products dose (coagulant and disinfectant) was identified.
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    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.