Monteiro, V. R. C.; Vidal, C. M. de S.; de Sousa, J. B.; Cavallini, G. S. Tertiary Treatment of Sanitary Sewage from Polishing Pond Using System of Coagulation/Precipitation Followed by Ultraviolet Radiation. Semin., Exact Tech. Scienc. 2013, 34, 67-80.