Resumo

GARAVITO-BERMUDEZ, Geraldine Isabel; OSPINA-ROMERO, Laura Vanessa  e  OSPINA-MORA, Diana Carolina. Evaluation of a lab-scale system of floating macrophytes filter, as a wastewater treatment for a car wash. LogosCyT [online]. 2020, vol.12, n.1, pp.10-20. ISSN 2145-594X.  https://doi.org/10.22335/rlct.v12i1.977.

This study aims to evaluate the efficiency of the removal of organic matter and solids from a filter system that uses macrophytes in flotation on a laboratory scale, using water from a car wash. Water Hyacinth (Eichhornia crassipes) and Water Lentil (Lemna minor) were used, and the BOD5, COD, OSS and SS concentrations were monitored for one month in the system’s effluent. In relation to the reduction of the parameters analyzed using Water Hyacinth, there was a maximum of 91.11% removal of BOD5 and 97.32% removal of COD. In the case of the Water Lentil, 97% removal of BOD5 and 83.67% for COD was obtained. Finally, the system demonstrated optimum performance and removal efficiencies greater than 44.4% in terms of organic matter, sedimentable and suspended solids.

Palavras-chave : biological treatment; wastewater; dumping; macrophyte plants.

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