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Título:
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Internal Treatment of Process Waters in Paper Production by Dissolved Air Flotation with Newly Developed Chemicals. 1. Laboratory Tests
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Autores:
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Miranda Carreño, Rubén ;
Negro Álvarez, Carlos Manuel ;
Blanco Suárez, Ángeles
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Tipo de documento:
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texto impreso
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Editorial:
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American Chemical Society, 2009
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Química: Ingeniería química
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Materia = Ciencias: Química: Agua
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Materia = Ciencias: Química: Medio ambiente
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Materia = Ciencias: Química: Industria del papel
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Tipo = Artículo
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Resumen:
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New chemicals, based on the synergistic effect between inorganic polyaluminium salts and organic cationic polyelectrolytes, have been tested for the chemical optimization of a dissolved air flotation (DAF) unit, used as internal treatment of process waters in a paper mill based on 100% recovered paper. Laboratory tests have demonstrated that polyamine modifications of the aluminum salts are the most efficient in the removal of contaminants, the combination of a polyaluminium nitrate sulfate salt and a polyamine being the most efficient. This chemical has been studied under different conditions, such as different dosages or in combination with a flocculant for the treatment of waters from different paper grades production, and the results have demonstrated a good performance at laboratory scale. Therefore, a field trial has been recommended for assessing its potential benefits at mill scale, which will be described in a future paper.
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En línea:
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https://eprints.ucm.es/id/eprint/11888/1/Miranda_Internal_treatment_of_process_water_with_DAF_Part_1_2009.pdf
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