Akademik Veri Yönetim Sistemi
Bartın University International Journal of Natural and Applied Sciences, cilt.6, sa.2, ss.145-156, 2023 (Hakemli Dergi)
The textile industry is one of the sectors where water use is high. Textile wastewater contains a high percentage
of dyestuffs. Dyestuffs prevent photosynthetic activities in water and disrupt the ecological balance in water.
Treatment of dyestuffs is very important for the prevention of water pollution and for the health of living things.
There are several methods for the treatment of wastewater containing dyestuffs. In this study, it was aimed to
remove dyestuff from synthetic textile wastewater by using olive leaf by adsorption method. The effects of initial
pH, amount of adsorbent, contact time and temperature on adsorption were investigated. According to the data
obtained, optimum conditions were determined as pH 2, 0.25 g of adsorbent, 2 hours of contact time, and a
temperature of 25 °C. When the experimental data were applied to the kinetic models, it was observed that they
conformed to the pseudo-second-order rate equation. The data obtained at the end of the experiments were applied
to the Langmuir and Freundlich isotherm models. It was observed that the data obtained with olive leaf conformed
to the Freundlich isotherm. The reaction for the olive leaf is an exothermic and occurs spontaneously, according
to thermodynamic analysis. Negative entropy indicates a decrease in disorder in adsorption.