2026-06-07T23:47:06Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/443302024-07-04T07:41:32Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Hermosilla Redondo, María Daphne
author
Ordóñez, Ruth
author
Blanco, Laura
author
Fuente González, Elena de la
author
Blanco Suárez, María Ángeles
2023-06-20T03:43:41Z
2023-06-20T03:43:41Z
2012
1521-4125
10.1002/ceat.201100527
https://hdl.handle.net/20.500.14352/44330
http://doi.org/10.1002/ceat.201100527
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).
eng
pH and Particle Structure Effects on Silica Removal by Coagulation
journal article
URL
https://docta.ucm.es/bitstreams/176ad4cc-fc0e-4196-a0c5-8360751d58ea/download
File
MD5
3ae4fb3b8b8304fef39402033fa297ca
493998
application/pdf
pH and particle structure effects on silica removal by coagulation.pdf
URL
https://docta.ucm.es/bitstreams/eaf6ba5f-825f-49e0-953c-588ce1577ce4/download
File
MD5
01c4ac6eb79a4eb0a2b98a14b93fd338
36199
text/plain
pH and particle structure effects on silica removal by coagulation.pdf.txt