shows the obtained removal of Cu from the EU
considering a combination of different factors like type
of plant species, different size of filter media and HRT
employed.
For the 24 hours HRT, the highest removal percentage
of Cu (94%) was obtained in unit 2 with the species Typha
domingensis Pers. and FG. The lower removal percentage
was 50% in the EU 3 which was considered as
the control with FG and without plants.
In the 48 hour HRT, 88% removal of Cu in the EU 5
with a media size filter of 5 mm and plant species Eleocharis
cellulose was obtained. The lowest percentage of
removal (58%) was found in the EU 6 with the combination
of Typha domingensis Pers. and CG.
control with fine gravel support media (FG) and without
plants) with 79%.
The decreased removal percentage observed in the 48ctors