V. Conceição, F. B. Freire, e K. Q. de Carvalho, “<b>Treatment of textile effluent containing indigo blue dye by a UASB reactor coupled with pottery clay adsorption</b> - doi: 10.4025/actascitechnol.v35i1.13091”, Acta Sci. Technol., vol. 35, nº 1, p. 53–58, ago. 2012.