REGENERATION OF BINARY DYE MIXTURES ON GRANUAL ACTIVATED CARBON
碩士 === 大同工學院 === 化學工程研究所 === 86 === Adsorption by activated carbon is widely used to remove chemical species from waters and wastewaters. However, the economical competitiveness of the activated desorption process depends upon the reusability of exhausted carbon. This research project inv...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
1998
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| Online Access: | http://ndltd.ncl.edu.tw/handle/44865718622243049277 |
| Summary: | 碩士 === 大同工學院 === 化學工程研究所 === 86 === Adsorption by activated carbon is widely used to remove chemical species from waters and wastewaters. However, the economical competitiveness of the activated desorption process depends upon the reusability of exhausted carbon. This research project investigated the Regeneration of activated carbon bed presaturated with dye wastewater. In the batch desorption test, 60% acetone and 40% isoproporanol were found to be the optimal solvent. The Adsorption isotherms model in the presence of different solvents were studied at varying temperatures. The Radlich-Peterson model is found to best fit the single-dye adsorption data and the Fritz-Schlunder model is best for the binary dyes. In column tests, the optimal solvents are used as the regenerant in Cyclic operation at vary temperature. The result show that the carbon bed adsorption capacity decreased dramatically and the effluent concentrations cannot be predicted by the wave propagationtheory.
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