B Biosep™ / Neosep™ Biosep™ is an aerobic biological treatment process treating municipal and industrial effluents. Aerobic Wastewater Treatment W Whittier™ L’EAU CLAIRE Veolia’s L’Eau Claire™ is an up-flow deep-bed media filtration technology designed for the effective removal of fine solids, colloidal silica and color. Filtration