Minimization of toxic ions in waste water using emulsion liquid membrane technique
Joint Authors
al-Himiri, Adil A. A.
Mahmud, Heaven E.
Source
Iraqi Journal of Chemical and Petroleum Engineering
Issue
Vol. 11, Issue 1 (31 Mar. 2010), pp.11-19, 9 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2010-03-31
Country of Publication
Iraq
No. of Pages
9
Main Subjects
Earth Sciences, Water and Environment
Chemistry
Topics
Abstract EN
In the present study, the removal of zinc from synthetic waste water using emulsion liquid membrane extraction technique was investigated.
synthetic surfactant solution is used as the emulsifying agent.
Diphenylthiocarbazon (ditizone) was used as the extracting agent dissolved in carbon tetrachloride as the organic solvent and sulfuric acid is used as the stripping agent.
The parameters that influence the extraction percentage of Zn+2 were studied.
These are the ratio of volume of organic solvent to volume of aqueous feed (0.5-4), ratio of volume of surfactant solution to volume of aqueous feed (0.2-1.6), pH of the aqueous feed solution (5-10), mixing intensity (100-1000) rpm, concentration of extracting agent (20-400) ppm, surfactant concentration (0.2-2) wt.
%, contact time (3-30) min, and concentration of strip phase (0.25-2) M .
It was found that 87.4 % of Zn+2 can be removed from the aqueous feed solution at the optimum operating conditions.
Further studies were carried out on extraction percentages of other toxic metal ions (As+3, Hg+2, Pb+2, Cd+2) by using the same optimum conditions which were obtained for zinc ions except for the pH of the feed solutions.
The pH values for best extraction percentages of arsenic, lead, and cadmium were (1, 10, 10) respectively.
Maximum extraction percentage of (98.5, 95.5 and 93.8) was obtained for arsenic, lead, and cadmium respectively, while mercury was completely removed from the aqueous feed solution within the acidic pH range.
American Psychological Association (APA)
al-Himiri, Adil A. A.& Mahmud, Heaven E.. 2010. Minimization of toxic ions in waste water using emulsion liquid membrane technique. Iraqi Journal of Chemical and Petroleum Engineering،Vol. 11, no. 1, pp.11-19.
https://search.emarefa.net/detail/BIM-287253
Modern Language Association (MLA)
al-Himiri, Adil A. A.& Mahmud, Heaven E.. Minimization of toxic ions in waste water using emulsion liquid membrane technique. Iraqi Journal of Chemical and Petroleum Engineering Vol. 11, no. 1 (Mar. 2010), pp.11-19.
https://search.emarefa.net/detail/BIM-287253
American Medical Association (AMA)
al-Himiri, Adil A. A.& Mahmud, Heaven E.. Minimization of toxic ions in waste water using emulsion liquid membrane technique. Iraqi Journal of Chemical and Petroleum Engineering. 2010. Vol. 11, no. 1, pp.11-19.
https://search.emarefa.net/detail/BIM-287253
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 18-19
Record ID
BIM-287253