RT Journal Article
T1 Batch and Continuous Chromate and Zinc Sorption from Electroplating Effluents Using Biogenic Iron Precipitates
A1 Rocha, Fabiana
A1 Muñoz Sánchez, Jesús Ángel
A1 González González, Felisa
A1 Blázquez Izquierdo, María Luisa
A1 Castro Ruiz, Laura
AB Nanoparticles of iron precipitates produced by a microbial consortium are a suitable adsorbent for metal removal from electroplating industry wastewaters. Biogenic iron precipitates were utilized as adsorbents for chromate and zinc in batch conditions. Furthermore, the iron precipitates were embedded in alginate beads for metal removal in fixed-bed columns, and their performance was evaluated in a continuous system by varying different operational parameters such as flow rate, bed height, and feeding system (down- and up-flows). The influence of different adsorption variables in the saturation time, the amount of adsorbed potentially toxic metals, and the column performance was investigated, and the shape of the breakthrough curves was analyzed. The optimal column performance was achieved by increasing bed height and by decreasing feed flow rate and inlet metal concentration. The up-flow system significantly improved the metal uptake, avoiding the preferential flow channels.
PB MDPI
SN 2075-163X
YR 2021
FD 2021
LK https://hdl.handle.net/20.500.14352/7485
UL https://hdl.handle.net/20.500.14352/7485
LA eng
NO Ministerio de Economía y Competitividad
DS Docta Complutense
RD 6 oct 2024