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Schirmer, W.N.; Kozak, C.; Gomes, S.; Santos, L.M..; Fonseca, A.F.Lack of sewage treatment is amongst the main sanitation problems of Brazil, mainly in low income rural communities. Seeking alternative and low cost technologies to treat such effluents is mandatory. This study aimed to verify the efficacy of a sewage treatment system by root zone stations (constructed wetlands) to remove potentially toxic elements (Cu and Zn) in two wastewater treatment stations (WWTS) (school and single familydoi:10.14210/bjast.v19n1.p7-11 fatcat:luzsr3ppqngfvjirptno72mcwu