Production of chemically and microwave activated hazelnut husk as an adsorbent for dye contaminated wastewaters

Adsorption has traditionally been evaluated as an economical and easily applicable process for treating certain wastewaters, such ones including dyes heavy metals. Even though adsorbent materials specifically produced the purpose of wastewater treatment commercially exist, production cost may create economic burden on processes. Agricultural wastes can be valorized adsorbents in adsorption The capacity these improved via pre-treatment methods chemical application microwave irradiation. This study investigated potential applicability hazelnut husk methylene blue (MB) dye. To this purpose, was activated by sequential or water applications. Structural analysis performed Fourier transform infrared spectrophotometry (FTIR) field emission scanning electron microscopy (FE-SEM). Isotherm (Langmuir, Freundlich, Temkin Harkins-Jura isotherms) kinetic (pseudo-first-order, pseudo-second-order, Elovich intraparticle diffusion models) behaviours were also evaluated. results indicated that MB could removed 92-94% considering all produced. Further isotherm studies revealed both physically chemically induced, reaction followed pseudo-second-order model (R2>0.99).