Liquid phase   MAIN R&D&I RESEARCH LINES (1) Swine Manure Treatment . Liquid phase Specific biological treatments for the liquid swine manure fraction: Fixed biomass filters (Trickling filters). Activated sludge. Nitrifying bacteria immobilized in gel pearls (PINBT). Submerged biomass beds. Sequential aerobic and anoxic reactors (SBR/ASBR). Production of ammonium sulfate from swine manure. Electrochemical oxidation treatments. Ecotoxicity and environmental risk analysis. SELCO MC ® copyright 2008 .Privacy policy. Conditions of use and author's rights. . . .