Sulfite pretreatment on the anaerobic sludge digester for improving methane production and volatile solid reduction. Indian Journal of Chemical Technology (IJCT), [S. l.], v. 33, n. 2, p. 258–265, 2026. DOI: 10.56042/ijct.v33i2.20909. Disponível em: https://or.niscpr.res.in/index.php/IJCT/article/view/20909. Acesso em: 30 may. 2026.