Removal of Formaldehyde from Aqueous Solution by Polymeric Resin
Formaldehyde (HCHO) is the most common aldehyde in the environment. It is widely present in
aquatic and air environment as one of environmental pollutants. It is commonly used for
manufacturing building materials and various household products. Now, it has become a matter of
concern because it is mutant and carcinogenic, and an irritant to eyes and skin, therefore its
removal from water is very important. Adsorption has an edge over the other techniques
due to its simplicity, cost effectiveness, less time consuming and environmental friendly
behavior. In present study, adsorption efficiency of Amberlite IRA-910 has been
examined. Relevant parameters such as pH, adsorbent dose, adsorbate concentration,
shaking speed, volume and shaking time have been studied thoroughly. Ultraviolet-visible
spectroscopy was used to determine the formaldehyde content in the water. The isothermal
study was carried out using the Langmuir, Freundlich and D-R isotherm. Results showed that
Amberlite IRA-910 has better adsorption efficiency for the removal of formaldehyde at lower as
well as higher concentrations. The thermodynamic and kinetic parameters have also been
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