RT Journal Article
T1 pH and Particle Structure Effects on Silica Removal by Coagulation
A1 Hermosilla Redondo, María Daphne
A1 Ordóñez, Ruth
A1 Blanco, Laura
A1 Fuente González, Elena de la
A1 Blanco Suárez, María Ángeles
AB 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).
SN 1521-4125
YR 2012
FD 2012
LK https://hdl.handle.net/20.500.14352/44330
UL https://hdl.handle.net/20.500.14352/44330
LA eng
NO This is the pre-peer reviewed version of the following article: Hermosilla, D., Ordóñez, R., Blanco, L., de la Fuente, E. and Blanco, Á. (2012), pH and Particle Structure Effects on Silica Removal by Coagulation. Chem. Eng. Technol., 35: 1632–1640. doi: 10.1002/ceat.201100527], which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/ceat.201100527/abstract.
NO European Commission
NO Comunidad de Madrid
NO Ministerio de Ciencia e Innovación (España)
DS Docta Complutense
RD 6 abr 2025