Enhancing the Clarification of Azzaba Landfill Leachate Using Biocoagulants with Optimization by Box Behnken Design
This study focuses on optimizing the coagulation-flocculation process for treating pollutants in the leachate from Azzaba landfill, utilizing natural coagulants: walnut shells, Moringa oleifera seeds, and Opuntia ficus-indica leaves. Walnut shells, at pH 4, a coagulant dosage of 12g/L, 300rpm stirring speed, and 25 minutes of treatment, demonstrated remarkable reductions in turbidity (83.92%) and suspended solids (92%).