Extraction of heavy metals from aqueous solutions in a modified rotating disc extractor
| Autor: | N. K. Amin, E.-S. Z. El-Ashtoukhy, B. A. Amer, Mohamed Helmy Abdel-Aziz |
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| Rok vydání: | 2016 |
| Předmět: |
Analytical chemistry
Filtration and Separation 02 engineering and technology 010501 environmental sciences 01 natural sciences chemistry.chemical_compound lcsh:Water supply for domestic and industrial purposes 020401 chemical engineering Mass transfer Phase (matter) naphthenic acid Naphthenic acid 0204 chemical engineering heavy metals wastewater 0105 earth and related environmental sciences Water Science and Technology lcsh:TD201-500 Aqueous solution Ion exchange Chemistry Extraction (chemistry) Rotational speed modified disc solvent extraction Volumetric flow rate extraction |
| Zdroj: | Journal of Water Reuse and Desalination, Vol 7, Iss 2, Pp 187-196 (2017) |
| ISSN: | 2408-9370 2220-1319 |
| DOI: | 10.2166/wrd.2016.178 |
| Popis: | Extraction of Cu+2 from dilute aqueous solutions as a case study by liquid cation exchanger in a modified rotating disc extractor was studied. The liquid cation exchanger consisted of naphthenic acid dissolved in an inert carrier kerosene. Variables studied were: initial concentration of Cu+2, disc rotational speed, concentration of naphthenic acid, flow rates of continuous and dispersed phase, degree of roughness, and number of rotating discs. The rate of extraction increased with increasing rotational speed, concentration of naphthenic acid, flow rate of dispersed phase, degree of roughness and number of discs to a certain number, while increasing Cu+2 concentration and flow rate of continuous phase decreased the rate of extraction. All variables were correlated by the dimensionless mass transfer equation. Possible practical applications of the present data in treating aqueous waste from different sources such as petrochemical industries, electroplating, and hydrometallurgical processes was highlighted. |
| Databáze: | OpenAIRE |
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