Quality index of the surface water of Amazonian rivers in industrial areas in Pará, Brazil

Medeiros, Adaelson Campelo; Faial, Kleber Raimundo Freitas; Lopes, Iris Danielly da Silva; Lima, Marcelo de Oliveira; Guimarães, Raphael Mendonça; Mendonça, Neyson Martins

doi:10.1016/j.marpolbul.2017.09.002

Cited by 66 publications

(34 citation statements)

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“…Thus, using water quality index (WQI) with international standard limits we can determine the water chemistry and hence the status of water pollution in these areas [4,5]. WQI method based on different modes of calculations has been widely developed by many authors to assess water quality of rivers all around the world like Hooghly River in India, Yellow River in China, Suquia River in Argentina, Amazonian rivers in Brazil and Beheshtabad River in Iran [6][7][8][9][10]. Thus, from the outcome of WQI calculations, the public and government can easily understand the healthiness of the river and also can take suitable measures regarding human intervention and surface water preservation in the area, particularly in a developing country like India, where rivers are considered as sacred.…”

Section: Introductionmentioning

confidence: 99%

Assessment of urban river water quality and developing strategies for phosphate removal from water and wastewaters: Integrated monitoring and mitigation studies

et al. 2020

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In this work, the water quality status of the surface water that lies around the Karamana River basin, Trivandrum urban area, was studied on the basis of the water quality index (WQI) method. The eutrophic condition of the basin is revealed, and proper mitigation strategy was adopted for the removal of phosphate species using pillared clay materials. Proper sampling was carried out in the urban rivers, and various physico-chemical parameters for evaluating the quality of water were analysed. WQI values obtained for these riverine systems are in the range 317.7-3005.1, indicating that the water is not suitable without treatment for any domestic activities. Also, phosphate ions in the range 1.98-20.52 mg/L reflect the dominance of phosphate species in surface water. A proper mitigation strategy was adopted for the selective removal of phosphate ions using adsorption technique by using zirconium-pillared bentonite clay (ZPBC) prepared by the stirring-ageing technique. The batch adsorption experiment performed on simulated phosphate solution shows that for 2.0 g/L of ZPBC a maximum phosphate adsorption capacity of 35.71 mg/g was achieved in 30 min at pH 3.0. The data obtained were used to study models in kinetics and isotherm. The reusability of spent ZPBC for five continuous cycles without major loss in adsorption capacity using 0.025 M Na 2 CO 3 extractant was proved from the desorption study. A single-stage reactor was also designed from the isotherm data and proved to be effective. The applicability of the adsorbent towards phosphate anions was successfully checked in the laboratory using surface water collected and found that the complete removal of phosphate was achieved using 6.0, 8.0 and 10.0 g/L of ZPBC.Electronic supplementary material The online version of this article (https ://doi.org/10.1007/s4245 2-020-2571-0) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Assessment of urban river water quality and developing strategies for phosphate removal from water and wastewaters: Integrated monitoring and mitigation studies

et al. 2020

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“…La disponibilidad y calidad del agua, ya sea superficial o subterránea, se ha deteriorado debido a factores como el aumento de la población, la industrialización, la urbanización (Tyagi et al, 2013). La calidad del agua es uno de los temas más importantes en la gestión de los recursos hídricos (Sutadian et al, 2016;Medeiros et al, 2017), su clasificación basada en el grado de pureza y contaminación data de 1848 (Medeiros et al, 2017) y se evalúa desde las características físicas, químicas y bilógicas (Rangeti et al, 2015). La gran variedad de factores y parámetros que afectan la calidad del agua hace que su evaluación sea una tarea compleja (Sutadian et al, 2016).…”

Section: Introductionunclassified

“…Nace entonces la necesidad de construir índices de calidad del agua (ICAs) como una técnica valiosa para describir su estado general en un solo término de fácil comunicación al público y a los responsables de la toma de decisiones (Tyagi et al, 2013;Sutadian et al, 2016). En 1908, se utilizó uno de los primeros ICA, denominado índice sapróbico, para estimar el nivel de materia orgánica fácilmente degradable en agua superficial (Medeiros et al, 2017) y desde entonces se han desarrollado muchos índices (Sutadian et al, 2016). Los ICAs se han vuelto una herramienta muy útil en los programas de vigilancia, control y administración del recurso hídrico.…”

Section: Introductionunclassified

“…El ICAUCA toma las funciones de valor de los índices: NSF, Dinius y del índice de contaminación por sólidos suspendidos, el cual ha sido usado por Ocampo-Duque et al, (2013). La CETESB (2006) adoptó las mismas ecuaciones del NSF con pequeñas sustituciones, recientemente usado por Medeiros et al, (2017), mientras que Dinius tiene sus propias funciones definidas con un panel de expertos norteamericanos.…”

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Análisis Comparativo de Índices de Calidad del Agua Aplicados al Río Ranchería, La Guajira-Colombia

Pérez

Nardini²,

Galindo

2018

Inf. tecnol.

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_____________________________________________________________________________________________________________________________________ ResumenEste artículo compara diversos índices de calidad del agua (ICA) aplicados en 235,3 km del río Ranchería, La Guajira-Colombia. La comparación de los ICA se realizó directamente con los valores numéricos de los índices discretizados en cinco rangos iguales (índices brutos) y con sus calificaciones, es decir los juicios ambientales (también en cinco clases) asociados a esos valores. La coherencia entre parejas de índices se analizó en ambos casos con el coeficiente de correlación de Spearman y la raíz del error cuadrático medio (RMSE). Se obtuvo mayor coincidencia, mejor correlación y menores desviaciones en el caso de los índices brutos. Este hecho evidencia la carencia de la relación entre los valores de los índices y su calificación. Se determina por tanto la necesidad de llevar a cabo un ejercicio de intercalibración para asegurar la coherencia entre los distintos índices. Palabras AbstractThis paper compares several water quality indices applied along 235.3 km of the river Ranchería, La Guajira-Colombia. The comparison directly adopts the values of the indices discretized in five equal intervals (raw indices), and, on their scoring, this is the environmental judgments (also in five classes) associated with such indices. The coincidence between couples of indices is analyzed, in both cases, through the correlation coefficient of Spearman and the Root Mean Square Error (RMSE). The results state that raw indices perform higher coincidence, better correlation and lesser deviations than do scorings. This fact stresses the weakness of the relation between the value of the indices and their qualification. It is necessary to carry out an intercalibration exercise in order to consistently gear the different indices.

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“…Water quality indices and water indicators have been developed since 1848 [2]. The water quality indices are mathematical tools, which are used to simplify the information about water quality parameters.…”

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confidence: 99%

Assessment of Surface Water Quality of Danube River in Terms of Usual Parameters and Correlation Analyses

Drasovean¹,

Murariu²,

Constantinescu³

et al. 2019

Rev. Chim.

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In order to determine the water quality of Danube River, in the Galati area, the Water Quality Index was calculated. Water Quality Index is a useful number of overall qualities of water. Galati is a Danube port city located in south-eastern of Romania. Samples were taken from 9 places along the Danube starting with the place where the Siret flows into the Danube to the Profiland Steel Plant. Profiland Steel is a company in Galai whose main activities are: sheet and zinc strips; treatment and coating of metals. The monitoring period was one year, from November 2016 to December 2017. Every month, thirty physical - chemical parameters were investigated. In this study the assessment of surface water quality was determined on the basis of various indicators such as: potassium and calcium ions, nitrites, nitrates, total nitrogen, ammonium, chlorides, total phosphorus, sulphates, cadmium, chrome, copper, lead, iron, zinc, density, dissolved oxygen, chemical oxygen demand (CCO-Cr), biochemical oxygen demand (CBO5), electrical conductivity, the density of the conductivity, resistivity, pH, salinity, total dissolved solids. The water quality index (WQI) has been calculated by using Weighted Arithmetic Water Quality Index Method. Two types of correlations were developed: Pearson correlation matrix and Spearman correlation.

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Quality index of the surface water of Amazonian rivers in industrial areas in Pará, Brazil

Cited by 66 publications

References 17 publications

Assessment of urban river water quality and developing strategies for phosphate removal from water and wastewaters: Integrated monitoring and mitigation studies

Assessment of urban river water quality and developing strategies for phosphate removal from water and wastewaters: Integrated monitoring and mitigation studies

Análisis Comparativo de Índices de Calidad del Agua Aplicados al Río Ranchería, La Guajira-Colombia

Assessment of Surface Water Quality of Danube River in Terms of Usual Parameters and Correlation Analyses

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