Efficiency of a pilot system using wetlands in the post-treatment of the leachate generated in the Curitiba Landfill, Curitiba, Paraná, Brazil Ana Maria Pereira Barreto Amorim Thaís Lopes Cavalheiro Karla Heloise Preussler Erica Costa Mielke Selma Aparecida Cubas Leila Teresinha Maranho 10.6084/m9.figshare.6943889.v1 https://scielo.figshare.com/articles/dataset/Efficiency_of_a_pilot_system_using_wetlands_in_the_post-treatment_of_the_leachate_generated_in_the_Curitiba_Landfill_Curitiba_Paran_Brazil/6943889 <p></p><p>ABSTRACT In the Curitiba Landfill the post-treatment of the leachate occurs in natural wetlands. In order to evaluate the role of macrophytes in this post-treatment, it was developed a pilot system. Thus, the objective of this study was to evaluate the effectiveness of the pilot system in the post-treatment of the leachate in this landfill. The system was built with two water tanks: the macrophyte Echinochloa polystachya was placed in the first one; and the Eichhornia crassipes was placed in the second one. The system operated in batch in a seven-day cycle. For monitoring the system, samples were collected, and analyses of the leachate, the substrate, and the macrophytes were performed. The efficiency of the system in the post-treatment of the leachate was 72% for biochemical oxygen demand, 30% for chemical oxygen demand, 76% for total phosphorus and inorganic phosphorus, 38% for nitrate, 33% for nitrite, 58% for ammoniacal nitrogen, 44% for organic nitrogen, and 13% for zinc.</p><p></p> 2018-08-08 02:46:58 phytoremediation wetlands macrophytes simplified treatment systems