Citation
G. Muthuraman, . and Teng T. T., . and Leh C. P., . and Norli Ismail, . (2008) Recovery and reuse of methylene blue from industrial wastewater using benzoic acid as a carrier. [Proceedings Paper]
Abstract
Liquid-liquid extraction of Methylene blue from industrial wastewater using benzoic acid in xylene has been studied at 27C. The extraction of dye increases with increasing carrier concentration. The higher extraction abilities have been found by benzoic acid in the concentration range of 3.3 to 4.9 x lO-1 M. The pH of the source phase was varied using different buffer solutions. The maximum extraction 97 was found at the pH range of 10 to 12 0.1. The dye extraction decreased with decreasing pH. The distribution ratio of organic to aqueous phase is reasonably high D 47 even in the presence of anionic surfactants and sulphates ions. In any extraction process it becomes imperative to back extract the extracted species from organic phase and allow recycling of the organic phase without loss of efficiency. Various inorganic acids were investigated for the dye recovery. The dye was stripped into sulphuric acid solution. Influencing parameters examined were dye concentration nature of diluents equilibration time A/O ratio salt concentration loading of dye in benzoic acid. Reusability of solvents have been studied. The recovered dye was used successfully.
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Abstract
Liquid-liquid extraction of Methylene blue from industrial wastewater using benzoic acid in xylene has been studied at 27C. The extraction of dye increases with increasing carrier concentration. The higher extraction abilities have been found by benzoic acid in the concentration range of 3.3 to 4.9 x lO-1 M. The pH of the source phase was varied using different buffer solutions. The maximum extraction 97 was found at the pH range of 10 to 12 0.1. The dye extraction decreased with decreasing pH. The distribution ratio of organic to aqueous phase is reasonably high D 47 even in the presence of anionic surfactants and sulphates ions. In any extraction process it becomes imperative to back extract the extracted species from organic phase and allow recycling of the organic phase without loss of efficiency. Various inorganic acids were investigated for the dye recovery. The dye was stripped into sulphuric acid solution. Influencing parameters examined were dye concentration nature of diluents equilibration time A/O ratio salt concentration loading of dye in benzoic acid. Reusability of solvents have been studied. The recovered dye was used successfully.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. GE90 M3I61 2008 Call Number |
| AGROVOC Term: | Liquids |
| AGROVOC Term: | Extraction |
| AGROVOC Term: | Surfactants |
| AGROVOC Term: | Wastewater |
| AGROVOC Term: | Benzoic acid |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 05:14 |
| URI: | http://webagris.upm.edu.my/id/eprint/11791 |
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