Ooi, Zing Yi and Othman, Norasikin and Choo, Ching Li (2016) The role of internal droplet size on emulsion stability and the extraction performance of kraft lignin removal from pulping wastewater in emulsion liquid membrane process. Journal of Dispersion Science and Technology, 37 (4). pp. 544-554. ISSN 0193-2691
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Abstract
It has been discovered that the size of internal droplets in primary emulsion determines emulsion dispersion and stability in emulsion liquid membrane (ELM) process for removal of lignin from pulping wastewater. Generally, primary emulsion contains kerosene, Aliquat 336, sodium bicarbonate, as well as Span 80 as diluent, carrier, internal phase, and surfactant, respectively. Hence, this study had looked into the parameters, including concentration of surfactant, carrier, and stripping agent; emulsification speed and time; as well as agitation speed and time. As a result, the diameter of the smallest droplets (1.4 µm) was formed with maximum lignin extraction (95%), minimum swelling (5%) at 3% (w/v) surfactant concentration, 12,000 rpm of emulsification within 5 minutes, 0.01 M of Aliquat 336, 0.1 M of NaHCO3, and 250 rpm of extraction within 10 minutes.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Carrier concentration, Convergence of numerical methods, Drops, Extraction, Lignin, Liquid membranes, Liquids, Sodium bicarbonate, Surface active agents, Droplet sizes, Emulsion liquid membrane (ELM), Emulsion stability, Kraft lignin, Lignin extractions, Pulping wastewaters, Stripping agents, Surfactant concentrations, Emulsification, Alkali Lignins, Concentration, Emulsions, Pulping, Surfactants |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Chemical Engineering |
| ID Code: | 72645 |
| Deposited By: | Siti Nor Hashidah Zakaria |
| Deposited On: | 22 Nov 2017 12:07 |
| Last Modified: | 22 Nov 2017 12:07 |
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