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Título del libro: One Century Of The Discovery Of Arsenicosis In Latin America (1914-2014): As 2014 - Proceedings Of The 5th International Congress On Arsenic In The Environment
Título del capítulo: Effect of pH on As3+ sorption from aqueous solution by red clays

Autores UNAM:
CARLOS RENE GREEN RUIZ;

Autores externos:

Idioma:
Inglés

Año de publicación:
2014

Palabras clave:

Arsenic; Biology; pH effects; Aquatic environments; Constant temperature; Effect of pH; Effect of temperature; Initial concentration; Living organisms; Low concentrations; pH value; Adsorption

Resumen:

There is a global interest in As removal from aquatic environments. High As concentration can cause serious effects on the health of many living organisms, including humans. In this experimental work, the removal of As3+ from aqueous solution by red clays at different pH values (4, 6, 8 and 10), different initial concentrations (0, 0.1, 0.5, 1, 5 and 10 mg L-1) and constant temperature (25 °C) was studied. An effect of pH on the sorption of As3+ was observed and the highest As(III) sorption occurred at pH 8 in 2 hours. These experiments showed a strong sorption of As3+ onto red clays at the beginning of the process (30 minutes) and the highest sorption at pH 4 for high concentrations, pH 8 for intermediate concentrations and pH 10 for low concentrations. There was not a significant effect of temperature on As(III) adsorption. © 2014 Taylor & Francis Group.

Entidades citadas de la UNAM:

Título del libro: One Century Of The Discovery Of Arsenicosis In Latin America (1914-2014): As 2014 - Proceedings Of The 5th International Congress On Arsenic In The EnvironmentTítulo del capítulo: Effect of pH on As3+ sorption from aqueous solution by red clays

Título del libro: One Century Of The Discovery Of Arsenicosis In Latin America (1914-2014): As 2014 - Proceedings Of The 5th International Congress On Arsenic In The Environment
Título del capítulo: Effect of pH on As3+ sorption from aqueous solution by red clays