the
following tests were performed with three other different
wastewater mixtures, previously
filtered through a 1 mm mesh
bag
filter to remove coarse matter. This allowed us to evaluate the
filtration efficiency of D. polymorpha on wastewater with polluting
load and different amounts of suspended particulate, also taking
into account that this bivalve selects particles for food with a
diameter ranging between 15 and 40 mm