Performance of a submerged adsorption column compared with conventional fixed-bed adsorption
| Autor: | Md. Maksudur Rahman Khan, Kar Min Chan, Md. Wasikur Rahman, Md. Salatul Islam Mozumder, Kaniz Ferdous, Huei Ruey Ong, D. M. Reddy Prasad |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
021110 strategic
defence & security studies Chromatography Fixed bed Flow (psychology) 0211 other engineering and technologies Analytical chemistry Ocean Engineering Context (language use) 02 engineering and technology Continuous mode 010501 environmental sciences 01 natural sciences Pollution Volumetric flow rate chemistry.chemical_compound Adsorption Column (typography) chemistry Methylene blue 0105 earth and related environmental sciences Water Science and Technology |
| Zdroj: | Desalination and Water Treatment. 57:9705-9717 |
| ISSN: | 1944-3986 1944-3994 |
| DOI: | 10.1080/19443994.2015.1030779 |
| Popis: | Submerged adsorption (SA) process has been explored in this context for the first time as a dynamic and effective approach, comparable to the conventional fixed-bed adsorption. Various design parameters like breakthrough time (tb), adsorption capacity (qeq), and effective bed height (HB) of the adsorption columns were determined for different flow patterns, e.g. up-flow and down-flow. A fixed bed of jackfruit (Artocarpus heterophylus) leaf powder, already proved by our group as an efficient, cost-effective adsorbent for the removal of methylene blue from water in continuous mode using fixed-bed column, was selected for this study. The design basis of the adsorption columns were regarded as different bed depths (HT = 5–10 cm), flow rates (Q = 20–60 mL/min), and initial dye concentrations (C0 = 300–500 mg/L), for the experiment. With decreasing flow rates as well as increasing bed height and initial dye concentration for any flow arrangement, adsorption capacity of the column increased as the breakt... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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