Removing recalcitrant organic load of landfill leachate from urban solid waste pretreated biologically by coagulation-flocculation-sedimentation

Made available in DSpace on 2022-04-28T18:58:30Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-01-01 The utilization of physical-chemical post treatment on landfill leachate has been an option employed to remove organic compounds from this effluent. In this way, this article aimed to evaluate the physical-chemical treatment by coagulation-flocculation-sedimentation as an alternative in the post-treatment of landfill leachate submitted to biological treatment. Consequently, it was used a Jar-test to monitor true color and chemical oxygen demand (COD) in order to evaluate the efficiency of the physical-chemical treatment. By means of factorial design and analyzing the results, it was found that the best removals of color and COD were attained by combining a dosage of 400 mg Fe+3/L with pH 3.0, achieving 98 and 81% of color removal and COD, respectively. Universidade Estadual Paulista 'Júlio de Mesquita Filho' (UNESP) Universidade Estadual de Londrina (UEL), Londrina (PR) UEL, Londrina (PR) Universidade Estadual Paulista 'Júlio de Mesquita Filho' (UNESP) Universidade Estadual de Londrina (UEL), Londrina (PR)