Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 66, Issue -, Pages 231-241Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2018.05.034
Keywords
Green solvent; Chromium; Electroplating wastewater; Droplet size distribution; Emulsion liquid membrane
Funding
- Ministry of Higher Education (MOHE) [GUP: Q.J130000.2546.14H21]
- Centre of Lipids Engineering and Applied Research (CLEAR)
- Universiti Teknologi Malaysia (UTM)
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This research addresses the development of stable green ELM process for chromium removal from industrial effluents where CrO42- and Cr2O72- is the predominant species. Types of carriers, diluents and stripping agents undergo screening via LLE process. Meanwhile, the parameters studied for ELM stability and extraction were surfactant and modifier concentrations, homogenizer speed and emulsifying time. The formulate condition of stable ELM process was 0.04 M TOMAC in palm oil, 0.05 M NaOH, 3% (w/v) Span 80, 5% (w/v) octanol, 10,000 rpm homogenizer speed and 3 min emulsifying time. At this condition, 97% of chromium was extracted with breakage rate of 10%. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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