Adsorption study of nitrate anions by different materials using fixed bed column

Joint Authors

Sabri, Inam A.
Abbud, Nur S.

Source

Engineering and Technology Journal

Publisher

University of Technology

Publication Date

2019-01-31

Country of Publication

Iraq

No. of Pages

7

Main Subjects

Chemistry

Topics

• Adsorption
• Nitrates
• Aqueous solutions
• Fixed bed reactors
• Heavy metals removal

English Abstract

MCM-41is, a mesoporous material with a hexagonal structure, has a high surface area, high pore vol., and low mass density.

Continuous adsorption fixed bed of NH2-MCM-4I adsorbent was utilized for the removal of nitrate anions from aqueous solutions.

The effect of adsorbent weight (0.5, 1, 2 gm), flow rate (0.5, 1.0, 1.5 ml/min) and initial NO3- concentrations (50, 75, 100 mg/l) on breakthrough curves were studied.

It was found that breakthrough time increases with increasing column bed height and decreases with increasing NO3- inlet concentration and flow rate.

The highest removal percentage (75.2%) achieved at inlet concentration of 100 mg/L of NO3- anion, 1gm adsorbent weight and 1.5 mL/min flow rate.

Thomas and Yan adsorption models showed a good fit to the experimental data.

Removal of nitrate anion by traditional activated carbon was also investigated and the results were compared with the nitrate removal by NH2-MCM-41.

It was concluded that NH2-MCM-41 is more efficient in nitrate removal than activated carbon and the maximum removal percentage of nitrate anions by traditional activated carbon was found to be 55.8%.

Data Type

Conference Papers

Record ID

BIM-895229

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