Optimization of Toluidine Blue Biosorption in Aqueous Solutions Using Polyporus Squamosus Fungi as Absorbent by Response Surface Methodology

Textile wastewater including a large number of dyes and heavy metals can have adverse impacts on human health surface water. In this work, biosorption Toluidine Blue from aqueous media onto natural Polypourus squamosus fungi as low-cost biosorbent was investigated. Central Composite Design (CCD) in Response Surface Methodology (RSM) successfully applied to optimize the condition. Medium parameters affected were determined be initial pH, (Tb) concentration, temperature, absorbent dosage. All experiments carried out batch system using 250 mL flasks containing 100 solution with temperature-controlled magnetic stirrer. The Tb concentrations remaining filtration solutions after analyzed UV-Spectro. With obtained quadratic model, optimal conditions for maximum biosorbed blue calculated 7, 27.5 mg/L, 35°C 0.05 g C°, T (°C) adsorbent dosage, respectively. Furthermore, most known isotherm models such Langmuir Freundlich computed find best-fitted model.