Aimi Asyiqin, Abu Kassim and Norhayati, Abdullah (2021) Sorption and thermodynamic study of nitrate removal by using Amberlite IRA 900 (AI900) resin. Materials Today: Proceedings, 41 (Part 1). pp. 102-108. ISSN 2214-7853. (Published)
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Sorption and Thermodynamic Study of Nitrate Removal by Using Amberlite IRA 900 (AI900) Resin (1).pdf Restricted to Repository staff only Download (1MB) | Request a copy |
Abstract
This paper presents the efficiency removal and thermodynamics studies of nitrates by using ion exchange resin, Amberlite IRA 900-Cl (AI900). The effect of experimental factors of contact time resin (1–6 h), resin dosage resin (1–6 g), initial concentration of nitrate influent in the range between 20 and 250 mg/L and temperature between 25 and 65 °C were studied by using a batch sorption method. From the overall study, the data clearly demonstrated that the optimum temperature for the nitrate ions were removed was at 25℃ as the sorption of nitrate decreased when the temperature increased. The sorption managed to obtain 85% removal of nitrates from bulk concentration by using 2 g of AI900 resin in 1-hour contact time. While increasing the contact time of resin until 6 h in 1 g resin and increasing the amount of resin to 6 g of AI900 resin in 1-hour contact time, the adsorption capacity managed to rise at 98 and 97%, respectively. AI900 resin demonstrated an exothermic and spontaneous process of nitrate removal at the varied temperatures as both enthalpy (ΔH°) and entropy (ΔS°) showed negative signs at −26.801 kJ/mol and −43 J/K∙mol respectively. The sorption was feasible and favored at low temperature as the Gibb energy (ΔG°) showed negative sign and decreased with the increasing temperature.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Amberlite IRA 900-Cl, Nitrates removal, Adsorption, Thermodynamics, Gibbs energy |
| Subjects: | T Technology > TP Chemical technology |
| Faculty/Division: | Institute of Postgraduate Studies Faculty of Chemical and Process Engineering Technology |
| Depositing User: | Noorul Farina Arifin |
| Date Deposited: | 20 Sep 2021 03:45 |
| Last Modified: | 20 Sep 2021 03:45 |
| URI: | http://umpir.ump.edu.my/id/eprint/32096 |
| Download Statistic: | View Download Statistics |
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