One of the major challenges in the world is the treatment of municipal solid waste, which can lead to contamination of the ecosystem due to percolated liquids when improperly discharged. The novelty of this study is the use of biocoagulant extracted from the flower of <i>Musa sp</i>. This approach was promising in the sense of production of the extract as well as the cost associated to it. The extract is based on polyphenolic chains (cumaric and gallic acid) composed of a hydrolyzable part and a condensed one. The effectiveness of the extract is given by the organic matter and turbidity removal. This study aimed to reducing the organic load measured in terms of Chemical Oxygen Demand (COD) and turbidity of leachate from landfill with 3 years of operation. The experiments that demonstrated effectiveness in the removal of humic and fulvic substances were performed in Jar-Test standard equipment. The factors applied in this study were: rotation, coagulant dosage and pH. These factors were used in a model through a Central Composite Design (CCD) response surface. The coagulation process was performed in two stages, the first with rotation being established according to the CCD and the second was kept fixed at 40 rpm. The COD removal and turbidity levels were 50.15% and 92.2%, respectively.

Optimization of the landfill leachate treatment process using <i>Musa sp</i> flower extract in the process of coagulation, flocculation and sedimentation

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

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Optimization of the landfill leachate treatment process using Musa sp flower extract in the process of coagulation, flocculation and sedimentation