Comparison of Bomaplex Blue CR-L Removal by Adsorption Using Raw and Activated Pumpkin Seed Shells
نویسندگان
چکیده
Abstract In this study, removal of colour from wastewaters prepared synthetically using Bomaplex Blue CR-L was investigated raw and activated pumpkin seed shells by adsorption in a batch system. The effects stirring speed, adsorbent concentration, dye temperature pH on were investigated, capacities determined. addition, kinetics, isotherm coefficients, activation energies thermodynamic parameters calculated. optimal conditions determined as = 2, speed 200 rpm, concentration 10 g L ?1 30 °C. Under the conditions, maximum efficiency 73.01 %. This value rose to 79.71 % after processing applied. Experimental data show that is more suited Langmuir model works accordance with pseudo-first-order kinetics model. As result research, ?H° ?S° 31.515 kJ mol 109.952 K for adsorbent, respectively. For ? H ° S 43.118 152.237 , energy calculated 10.918 9.882 adsorbent.
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ژورنال
عنوان ژورنال: Ecological Chemistry and Engineering
سال: 2022
ISSN: ['2084-4549', '1898-6196']
DOI: https://doi.org/10.2478/eces-2022-0015