2026-05-05T19:41:57Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/576882022-12-12T11:05:31Zcom_10324_1166com_10324_931com_10324_894col_10324_1338
Hermosilla Redondo, María Daphne
Ordóñez Sanz, Ruth
Blanco, Laura
Fuente González, Elena de la
Blanco Suárez, Ángeles
2022-12-07T13:20:35Z
2022-12-07T13:20:35Z
2012
Chemical Engineering & Technology, 2012, Vol. 35, Nª. 9, pp. 1632-1640
0930-7516
https://uvadoc.uva.es/handle/10324/57688
10.1002/ceat.201100527
1632
9
1640
Chemical Engineering & Technology
35
Producción Científica
Coagulation is presented as an efficient alternative to reduce the silica content in effluents from recovered-paper mills that are intended to be recycled by a final reverse-osmosis (RO) step. Coagulation pretreatment by several polyaluminum chlorides (PACls) or FeCl3 was optimized prior to the RO process. PACls with low alumina content and high basicity achieved almost a 100 % removal of silica at pH 10.5. A good reduction of the silica content was attained without regulating the pH by adding one of these PACls. Silica removal was related to the structure of the produced clots in which cylindrical particles produced higher silica removal. All coagulants removed more than 50 % of the chemical oxygen demand (COD).
Comunidad Autónoma de Madrid - (Proyecto P2009/AMB-1480)
Ministerio de Ciencia e Innovación - (Proyecto CTM2008-06886-C02- 01)
Comisión Europea - (Proyecto 211534)
application/pdf
eng
John Wiley & Sons
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
© John Wiley & Sons
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Papel - Industria
Aguas residuales - Depuración y tratamiento
Reflectance spectroscopy
Reverse osmosis
Ingeniería química
Química industrial
Coagulation
Silica fouling
pH and particle structure effects on silica removal by coagulation
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
https://onlinelibrary.wiley.com/doi/abs/10.1002/ceat.201100527
SI