Miranda Carreño, RubénBlanco Suárez, María ÁngelesNegro Álvarez, Carlos ManuelFuente González, Elena de la2023-06-202023-06-202008Miranda, Ruben, et al. «Separation of Contaminants from Deinking Process Water by Dissolved Air Flotation: Effect of Flocculant Charge Density». Separation Science and Technology, vol. 43, n.o 14, octubre de 2008, pp. 3732-54. DOI.org (Crossref), https://doi.org/10.1080/01496390802286587.0149-639510.1080/01496390802286587https://hdl.handle.net/20.500.14352/49497The original publication is available at http://www.tandf.co.uk/journals/default.aspThe 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.spajournal article1520-5754https://doi.org/10.1080/01496390802286587open accessCharge densityDissolved air flotationDissolved and colloidal material removalFBRMFlocculationPapermakingPolyacrylamideIngeniería químicaAguaMedio ambienteIndustria del papel3303 Ingeniería y Tecnología Químicas2303.31 Química del Agua2391 Química Ambiental3312.13 Tecnología de la Madera