Document Type : Original Research Article
Authors
Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran
Abstract
Heavy metals, including copper, are one of the most toxic pollutants in the world today due to the consumption prevalence in industry. There are several ways to remove copper from wastewater, each of which has advantages and limitations. Adsorption is one of the easiest and most commonly used methods to remove heavy metals from aqueous environments. On the other hand, the production of cheap adsorbents using waste from different factories can play an important role in reducing environmental pollution. For this, using copper ion (II) adsorption was investigated using a nanoscale zeolite beta adsorbent through batch adsorption experiments. In the following, various parameters affecting the adsorption process such as pH, initial concentration, temperature, adsorbent amount and contact time were investigated. The highest removal efficiency was observed at pH = 5 at 25 °C for 25 minutes, with a 0.25 g of nanocrystalline zeolite beta in 20 ml of copper solution. The traditional study of copper adsorption by nanocrystalline zeolite beta results in a well-respected second-order pseudo-model. Also, the adsorption thermodynamic studies indicate that the adsorption data is followed by the Doubinin-Raduskovich equivalence model with a correlation coefficient (R2 = 0.9963) at a temperature of C50.
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