Emprego de bomba multifásica como unidade geradora de microbolhas de ar em sistema de flota？？o aplicado ao pré-tratamento de efluente têxtil

this paper presents the results of a research carried out that aims to evaluate the performance of a multiphase pump (mixture of air and water) applied to replace the saturator chamber in a flotation system located in a textile industry. in the pilot unit (hydraulic surface loading equal to 128.6 ± 10 m.d-1), it was verified that the best results in terms of removal efficiency of turbidity and apparent color (efficiency removal over 95%) were obtained for the essays performed with recirculation ratio equal to 30% and air supply of 13%.