Water-sediment-fluorescent tracer interaction in a reactor. Measurement of flocs

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The objective was to study in controlled laboratory conditions the interaction between the Amidorhodamine G fluorescent tracer and sediments of the Salado river (Santa Fe), with d50 = 11.6 μm and 97% of fine sediments. A cylindrical reactor designed for this purpose and for different hydrodynamic co...

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Detalles Bibliográficos
Autores principales: Wolfenson, Alex, Lanza, Verónica, Palman, Lucas, Imhoff, Matias, Alvarez, Ana, Trento, Alfredo
Formato: Artículo revista
Lenguaje:Español
Publicado: CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa 2019
Materias:
Trazador fluorescente
Sedimentos
Reactor
Fluorescent tracer
Sediments
Acceso en línea:https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/114
Aporte de:
Cuadernos del CURIHAM de Universidad Nacional de Rosario
id I15-R229-article-114
record_format ojs
institution Universidad Nacional de Rosario
institution_str I-15
repository_str R-229
container_title_str Cuadernos del CURIHAM
language Español
format Artículo revista
topic Trazador fluorescente
Sedimentos
Reactor
Fluorescent tracer
Sediments
Reactor
spellingShingle Trazador fluorescente
Sedimentos
Reactor
Fluorescent tracer
Sediments
Reactor
Wolfenson, Alex
Lanza, Verónica
Palman, Lucas
Imhoff, Matias
Alvarez, Ana
Trento, Alfredo
Water-sediment-fluorescent tracer interaction in a reactor. Measurement of flocs
topic_facet Trazador fluorescente
Sedimentos
Reactor
Fluorescent tracer
Sediments
Reactor
author Wolfenson, Alex
Lanza, Verónica
Palman, Lucas
Imhoff, Matias
Alvarez, Ana
Trento, Alfredo
author_facet Wolfenson, Alex
Lanza, Verónica
Palman, Lucas
Imhoff, Matias
Alvarez, Ana
Trento, Alfredo
author_sort Wolfenson, Alex
title Water-sediment-fluorescent tracer interaction in a reactor. Measurement of flocs
title_short Water-sediment-fluorescent tracer interaction in a reactor. Measurement of flocs
title_full Water-sediment-fluorescent tracer interaction in a reactor. Measurement of flocs
title_fullStr Water-sediment-fluorescent tracer interaction in a reactor. Measurement of flocs
title_full_unstemmed Water-sediment-fluorescent tracer interaction in a reactor. Measurement of flocs
title_sort water-sediment-fluorescent tracer interaction in a reactor. measurement of flocs
description The objective was to study in controlled laboratory conditions the interaction between the Amidorhodamine G fluorescent tracer and sediments of the Salado river (Santa Fe), with d50 = 11.6 μm and 97% of fine sediments. A cylindrical reactor designed for this purpose and for different hydrodynamic conditions were used. The tangential and radial velocities were measured by an ADV probe, while floc sizes, turbidity and other variables were determined with multiparametric probes. The range of angular velocities (N) used was a function of the expected shear stresses for different river scenarios. The results obtained in a first test using the sediments in distilled water were contrasted with those of a second test, in which tracer was added. The maximum floc sizes, df50≈48 μm, were obtained without rhodamine, for concentrations of total suspended solids (SST) between 50 and 100 mg/L and N>150 rpm. For SST greater than 100 mg/L the df50 decayed to df50≈25 μm for the entire range of N, regardless of the presence of the tracer. For SST>150 mg/L with rhodamine the df50 were greater between 5 and 10% than those obtained without rhodamine. It is concluded that both the turbidity and floc sizes were affected by the tracer presence, for different N and SST.
publisher CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa
publishDate 2019
url https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/114
work_keys_str_mv AT wolfensonalex watersedimentfluorescenttracerinteractioninareactormeasurementofflocs
AT lanzaveronica watersedimentfluorescenttracerinteractioninareactormeasurementofflocs
AT palmanlucas watersedimentfluorescenttracerinteractioninareactormeasurementofflocs
AT imhoffmatias watersedimentfluorescenttracerinteractioninareactormeasurementofflocs
AT alvarezana watersedimentfluorescenttracerinteractioninareactormeasurementofflocs
AT trentoalfredo watersedimentfluorescenttracerinteractioninareactormeasurementofflocs
AT wolfensonalex interaccionaguasedimentostrazadorfluorescenteenunreactormediciondefloculos
AT lanzaveronica interaccionaguasedimentostrazadorfluorescenteenunreactormediciondefloculos
AT palmanlucas interaccionaguasedimentostrazadorfluorescenteenunreactormediciondefloculos
AT imhoffmatias interaccionaguasedimentostrazadorfluorescenteenunreactormediciondefloculos
AT alvarezana interaccionaguasedimentostrazadorfluorescenteenunreactormediciondefloculos
AT trentoalfredo interaccionaguasedimentostrazadorfluorescenteenunreactormediciondefloculos
first_indexed 2023-05-18T23:05:22Z
last_indexed 2023-05-18T23:05:22Z
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spelling I15-R229-article-1142022-12-14T02:40:18Z Water-sediment-fluorescent tracer interaction in a reactor. Measurement of flocs Interacción agua-sedimentos-trazador fluorescente en un reactor. Medición de flóculos Wolfenson, Alex Lanza, Verónica Palman, Lucas Imhoff, Matias Alvarez, Ana Trento, Alfredo Trazador fluorescente Sedimentos Reactor Fluorescent tracer Sediments Reactor The objective was to study in controlled laboratory conditions the interaction between the Amidorhodamine G fluorescent tracer and sediments of the Salado river (Santa Fe), with d50 = 11.6 μm and 97% of fine sediments. A cylindrical reactor designed for this purpose and for different hydrodynamic conditions were used. The tangential and radial velocities were measured by an ADV probe, while floc sizes, turbidity and other variables were determined with multiparametric probes. The range of angular velocities (N) used was a function of the expected shear stresses for different river scenarios. The results obtained in a first test using the sediments in distilled water were contrasted with those of a second test, in which tracer was added. The maximum floc sizes, df50≈48 μm, were obtained without rhodamine, for concentrations of total suspended solids (SST) between 50 and 100 mg/L and N>150 rpm. For SST greater than 100 mg/L the df50 decayed to df50≈25 μm for the entire range of N, regardless of the presence of the tracer. For SST>150 mg/L with rhodamine the df50 were greater between 5 and 10% than those obtained without rhodamine. It is concluded that both the turbidity and floc sizes were affected by the tracer presence, for different N and SST. El objetivo fue estudiar en condiciones controladas de laboratorio la interacción entre el trazador fluorescente Amidorodamina G y sedimentos del río Salado (Santa Fe), con d50=11.6 mm y 97% de sedimentos finos. Se utilizó un reactor cilíndrico diseñado para tal fin, implementándose diferentes condiciones hidrodinámicas.  Las velocidades tangenciales y radiales se midieron con una sonda ADV, los tamaños de flóculos, turbiedad y otras variables se determinaron con sondas multiparamétricas. El rango de velocidades angulares (N) utilizado fue función de las tensiones de corte esperadas para distintos escenarios del río. Los resultados obtenidos en una primera etapa de ensayos utilizando los sedimentos en agua destilada, se contrastaron con los de una segunda etapa en la que se agregó trazador. Los máximos tamaños de flóculos, df50≈48 mm, se obtuvieron sin rodamina, para concentraciones de sólidos suspendidos totales (SST) entre 50 y 100 mg/L y N>150 rpm. Para SST mayores a 100 mg/L los df50 decayeron para todo el rango de N hasta df50≈25 mm, independientemente de la presencia del trazador. Para SST>150 mg/L con rodamina los df50 fueron mayores entre 5 y 10% a los obtenidos sin rodamina. Se concluye que tanto la turbiedad como el tamaño de flóculos fueron afectados por la presencia del trazador, para distintas N y SST.  CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa 2019-12-13 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/zip https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/114 10.35305/curiham.v25i0.114 Cuadernos del CURIHAM is a half-year publication of the Centro Universitario de Rosario of hydro-environmental research directed by Adelma Mancinelli. It is dedicated to spreading the results of basic and applied research as well as technological innovations on the realm of hidro-environmental issues. It may include field study results, interdisciplinary studies or studies on the state of art on the field: basic hydraulics, fluvial and hydrodinamics, superficial and underground hydrology, urban and stochastic hydrology, planning and management of hydric resources, environmental evaluation, pollution and quality of the water, politics and water legislation, regional hydro-environmental management, hydraulic construction, methods and techniques and everything related to hydro-environmental sciences.; Vol. 25 (2019); 19-29 Cuadernos del CURIHAM; Vol. 25 (2019); 19-29 2683-8168 spa https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/114/83 https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/114/142 https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/114/147 https://creativecommons.org/licenses/by-nc-sa/4.0

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