K. K. AL-AHMADY, D.; S. M. AL-DABAG, E. Effect of Recirculation Ratio, Organic Loading and Suspended Solids Loading on the Efficiency of the Trickling FiltersWith Plastic Media. Al-Rafidain Engineering Journal (AREJ), [S. l.], v. 22, n. 3, p. 147–157, 2014. DOI: 10.33899/rengj.2014.88209. Disponível em: https://ojs.uomosul.edu.iq/index.php/arej/article/view/27112. Acesso em: 6 aug. 2025.