Verónica Rocha

Dr. Verónica Rocha


Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 March 2019 in Molecules
Verified
Journal Article
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ÓBÓscar Barros
Óscar Barros
LCLara Costa
Lara Costa
FCFilomena Costa
Filomena Costa
ALAna Lago
Ana Lago
VRVerónica Rocha
Verónica Rocha
Maria Teresa de Jesus Simões TavaresMaria Teresa de Jesus Simões Tavares
Maria Teresa de Jesus Simões Tavares
The use of rare earth elements is a growing trend in diverse industrial activities, leading to the need for eco-friendly approaches to their efficient recovery and reuse. The aim of this work is the development of an environmentally friendly and competitive technology for the recovery of those elements from wastewater. Kinetic and equilibria batch assays were performed with zeolite, with and without bacterial biofilm, to entrap rare earth ions from aqueous solution. Continuous assays were also performed in column setups. Over 90% removal of lanthanum and cerium was achieved using zeolite as sorbent, with and without biofilm, decreasing to 70% and 80%, respectively, when suspended Bacillus cereus was used. Desorption from the zeolite reached over 60%, regardless of the tested conditions. When in continuous flow in columns, the removal yield was similar for all of the rare earth elements tested. Lanthanum and cerium were the elements most easily removed by all tested sorbents when tested in single- or multi-solute solutions, in batch and column assays. Rare earth removal from wastewater in open setups is possible, as well as their recovery by desorption processes, allowing a continuous mode of operation.

1 May 2017 in Food and Chemical Toxicology
Verified
Journal Article
Closed access
VRVerónica Rocha
Verónica Rocha
CMClaudia S. Marques
Claudia S. Marques
JFJ.L. Figueiredo
J.L. Figueiredo
RGRita Gaio
Rita Gaio
PCPaulo Jorge Cardoso da Costa
Paulo Jorge Cardoso da Costa
Isabel AlmeidaIsabel Almeida
Isabel Almeida