Abstract: This study is aimed to investigate and to develop a low-cost adsorption method to remove the safranin dye from wastewater by using pine cone powders (PCP) as an adsorbent. In this method used for the removal of safranin, parameters such as adsorbate concentration, temperature, contact time at specific pH, particle size and adsorbent dose were investigated. Dye adsorption on PCP was evaluated by considering Langmuir, Freundlich, Temkin and DKR adsorption isotherm models. Various thermodynamic parameters were calculated to evaluate the adsorption processes. Adsorption kinetics were tested with pseudo-first order, pseudo- second order and intraparticle diffusion methods..
Keywords: Adsorption, kinetic, isotherms, pinecone, Safranin
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