Biblioteca de la Universidad Complutense de Madrid

Separation of Contaminants from Deinking Process Water by Dissolved Air Flotation: Effect of Flocculant Charge Density

Impacto



Miranda Carreño, Rubén y Blanco Suárez, Ángeles y Fuente González, Elena de la y Negro Álvarez, Carlos Manuel (2008) Separation of Contaminants from Deinking Process Water by Dissolved Air Flotation: Effect of Flocculant Charge Density. Separation Science & Technology, 43 (14). pp. 3732-3754. ISSN 0149-6395 print, 1520-5754 online

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Resumen

The effect of charge density of 5 cationic polyacrylamides (C-PAMs)and 3 anionic polyacrylamides (A-PAMs) in single and in dual treatments with a coagulant on the flocculation and removal of dissolved and colloidal material by dissolved air flotation (DAF) in papermaking has been studied. In single systems, good results were achieved both with low and high charge C-PAMs(1.0and 3.0–3.5 meq/g). In dual sy tems, high charge C-PAMs (3.0–3.5 meq/g)and A-PAMs (1.5 meq/g), were the most efficient. Results show that monitoring flocculation by a focused beam reflectance measurement (FBRM) allows paermakers to optimize the chemical dosages to maximize the separation efficiency of DAF units either with single or dual systems, which is not always possible with traditional methods as charge titration.


Tipo de documento:Artículo
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The original publication is available at http://www.tandf.co.uk/journals/default.asp

Palabras clave:Charge density, Dissolved air flotation, Dissolved and colloidal material removal, FBRM, Flocculation, Papermaking, Polyacrylamide
Materias:Ciencias > Química > Ingeniería química
Ciencias > Química > Agua
Ciencias > Química > Medio ambiente
Ciencias > Química > Industria del papel
Código ID:11890
Depositado:25 Ene 2011 13:31
Última Modificación:27 Nov 2014 11:33

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