Olga Freitas

Reactive dyes removal from wastewaters by adsorption on eucalyptus bark: variables that define the process

Cristina Morais, Olga Freitas, Elisa P.R. Gonçalves et al. · Water Research · 1999 · 286 citations

Chemical Engineering, Environmental Chemistry, Eucalyptus Bark +10

Removal of Cd(II), Zn(II) and Pb(II) from aqueous solutions by brown marine macro algae: Kinetic modelling

Olga Freitas, Ramiro José Espinheira Martins, Cristina Delerue‐Matos et al. · Journal of Hazardous Materials · 2007 · 172 citations

Chemical Engineering, Environmental Chemistry, Engineering +11

Acid-base treated vermiculite as high performance adsorbent: Insights into the mechanism of cationic dyes adsorption, regeneration, recyclability and stability studies

Wojciech Stawiński, Agnieszka Węgrzyn, Tomasz Dańko et al. · Chemosphere · 2017 · 103 citations

Chemical Engineering, Engineering, Environmental Engineering +9

Simultaneous removal of dyes and metal cations using an acid, acid-base and base modified vermiculite as a sustainable and recyclable adsorbent

Wojciech Stawiński, Agnieszka Węgrzyn, Olga Freitas et al. · The Science of The Total Environment · 2016 · 82 citations · Full text

Recyclable Adsorbent, Chemical Engineering, Engineering +12

The influence of acid treatments over vermiculite based material as adsorbent for cationic textile dyestuffs

Wojciech Stawiński, Olga Freitas, Lucjan Chmielarz et al. · Chemosphere · 2016 · 63 citations · Full text

Materials Science, Chemical Engineering, Engineering +8