Complutense University Library

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

Miranda Carreño, Rubén and Blanco Suárez, Ángeles and Fuente González, Elena de la and 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

[img]
Preview
PDF
2MB

Official URL: http://www.tandf.co.uk/journals/default.asp

View download statistics for this eprint

==>>> Export to other formats

Abstract

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.


Item Type:Article
Additional Information:

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

Uncontrolled Keywords:Charge density, Dissolved air flotation, Dissolved and colloidal material removal, FBRM, Flocculation, Papermaking, Polyacrylamide
Subjects:Sciences > Chemistry > Chemical engineering
Sciences > Chemistry > Water
Sciences > Chemistry > Environmental conditions
Sciences > Chemistry > Paper industry
ID Code:11890
Deposited On:25 Jan 2011 13:31
Last Modified:06 Feb 2014 09:13

Repository Staff Only: item control page