“…According to the literature, the hydrocyclone has demonstrated great efficiency in the free oil/water separation process [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. This equipment has a high processing capacity, requires little physical space for installation, is simple to operate, and requires low maintenance frequency.…”