PURIFICATION OF DISTILLERY SPENT WASH BY USING ACTIVATED CHARCOAL . EPH-International Journal of Applied Science, [S. l.], v. 2, n. 4, p. 6–10, 2016. DOI: 10.53555/eijas.v2i4.26. Disponível em: http://eijas.com/index.php/as/article/view/26. Acesso em: 30 oct. 2025.