Modification of Granular Activated Carbon with Post-Treatment to Enhance Nitrate Removal from Drinking Water

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Mazarji Mahmoud; SABOUHI MAHMOOD; Amin zadeh gohar rizi Behnoush; BAGHDADI MAJID; PARDAKHTI ALIREZA

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Journal: WATER AND WASTEWATER Year:2017 | Volume:28 | Issue:2 (108) Page(s): 1-11

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Title

Modification of Granular Activated Carbon with Post-Treatment to Enhance Nitrate Removal from Drinking Water

Author(s)

Keywords

AdsorptionQ2

NitrateQ2

CationicQ1

Post-TreatmentQ1

SurfactantQ2

Activated CarbonQ1

Alkaline Post-TreatmentQ1

Abstract

The presence of Nitrate in groundwater resources has instigated increasing concerns among both managers and users of, especially, drinking and sanitation water. From among the different Nitrate removal methods, the Adsorption method has attracted more attention thanks to its high removal efficieny and economical operation. Commercial Activated Carbon ranging in mesh size from 30‒ 40 was utilized to remove Nitrate from an aqueous solution. In order to enhance Nitrate uptake, different acid, alkaline, and Cationic Surfactant Post-Treatments were examined. Alkaline Post-Treatment followed by Cationic Surfactant modification was found to yield the best efficiency. FTIR, SEM, and N2 Adsorption/desorption were carried out to determine the physical and chemical properties of Activated Carbon. Kinetic tests revealed that adsortption reached its equilibrium state after 12 hiurs and that the pseudo-second order and Freundlich models. Based on the Langmuir model, maximum Adsorption capacity was found to be 15. 34 and pH had an insignificant effect on Nitrate Adsorption. Moreover, the highest decline in Nitrate Adsorption was observed in the presence of sulfate followed by chloride, phosphate, and carbonate. Based on the results obtained, the modified Activated Carbon accompanied by washing with sodiuym hydroxide and modified Cationic Surfactant Post-Treatment might be recommended for use in Adsorption processes as a promising innovative technology for Nitrate removal from drinking water.

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APA: Copy

Mazarji, Mahmoud, SABOUHI, MAHMOOD, Amin zadeh gohar rizi, Behnoush, BAGHDADI, MAJID, & PARDAKHTI, ALIREZA. (2017). Modification of Granular Activated Carbon with Post-Treatment to Enhance Nitrate Removal from Drinking Water. WATER AND WASTEWATER, 28(2 (108) ), 1-11. SID. https://sid.ir/paper/103632/en

Vancouver: Copy

Mazarji Mahmoud, SABOUHI MAHMOOD, Amin zadeh gohar rizi Behnoush, BAGHDADI MAJID, PARDAKHTI ALIREZA. Modification of Granular Activated Carbon with Post-Treatment to Enhance Nitrate Removal from Drinking Water. WATER AND WASTEWATER[Internet]. 2017;28(2 (108) ):1-11. Available from: https://sid.ir/paper/103632/en

IEEE: Copy

Mahmoud Mazarji, MAHMOOD SABOUHI, Behnoush Amin zadeh gohar rizi, MAJID BAGHDADI, and ALIREZA PARDAKHTI, “Modification of Granular Activated Carbon with Post-Treatment to Enhance Nitrate Removal from Drinking Water,” WATER AND WASTEWATER, vol. 28, no. 2 (108) , pp. 1–11, 2017, [Online]. Available: https://sid.ir/paper/103632/en

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