Progress of Cryogenics and Isotopes Separation

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The National Conference with international participation on New Cryogenic and Isotope Technologies for Energy and Environment - EnergEn 2018 is organized by the National Research-Development Institute for Cryogenic and Isotopic Technologies - ICSI Rm. Valcea with the scientific participation of the University of Pitesti and the University of Craiova and will be held at Baile Govora, in 2018.
AMMONIA REMOVAL FROM AQUEOUS SOLUTION BY ION EXCHANGE USING CLINOPTILOLITE AND VERIFICATION OF THE PROCESS THROUGH A NUMERICAL STUDY Print

AMMONIA REMOVAL FROM AQUEOUS SOLUTION BY ION EXCHANGE USING CLINOPTILOLITE AND VERIFICATION OF THE PROCESS THROUGH A NUMERICAL STUDY

Claudia Cobzaru1, Adriana Marinoiu2, Gabriela Antoaneta Apostolescu1, Ramona Elena Tataru-Farmus1, Nicolae Apostolescu1, Corina Cernatescu1*


1"Gheorghe Asachi” Technical University of Iasi, Faculty of Chemical Engineering and Environmental Protection, D. Mangeron, no. 73, 700050, Romania; 2National Research and Development Institute for Cryogenics and Isotopic Technologies - ICSI Rm. Valcea, Uzinei Street no. 4, P.O. Box Râureni 7, 240050, Râmnicu Vâlcea, Romania

ABSTRACT

The potential of the clinoptilolite for ammonia removal from aqueous solution through ion exchange process was assessed in this study. The effects of the most relevant parameters of the ion exchange process such as contact time temperature and solution concentration were examined. The results show that ammonia removal by clinoptilolite occurs rapidly within the 90 min of contact time. The best performances of the clinoptilolite for ammonia removal from aqueous solution have been emphasized by a numerical computation developed using the Table Curve software. The mathematical model corresponding to the characteristic equation provides a good arrangement of the experimental points on the responding surface, simplicity of the characteristic equation and a good determination coefficient that is near unity.

Keywords: ammonia removal, clinoptilolite, numerical study, Table Curve software.

 

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*Corresponding authors: Corina Cernatescu, E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it