Managed aquifer recharge: study of undisturbed soil column tests on the infiltration and treatment capacity using effluent of wastewater stabilization pond oleh Jaqueline Vígolo Coutinho, Cristiano das Neves Almeida, Eduardo Bernardo da Silva, Catalin Stefan, Gilson Barbosa Athayde Júnior, Carmem Lúcia Moreira Gadelha, Florian Walter