2017-Sustainable Industrial Processing Summit
SIPS 2017 Volume 5. Marquis Intl. Symp. / New and Advanced Materials and Technologies
| Editors: | Kongoli F, Marquis F, Chikhradze N |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2017 |
| Pages: | 590 pages |
| ISBN: | 978-1-987820-69-0 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Fabrication of Low-cost Spargers and Bubble Column Characterization for Aqueous and Non-aqueous Solutions
Behnam Mostajeran Goortani1; Elham Khoshandam2;1UNIVERSITY OF ISFAHAN, Isfahan, Iran (Islamic Republic of Iran); 2MASTER STUDENT, Isfahan, Iran (Islamic Republic of Iran);
Type of Paper: Regular
Id Paper: 237
Topic: 43
Abstract:
Spargers are porous devices used for the continuous injection of gas bubbles into liquids. They have many applications like effective aeration in bio reactors, enhanced oil recovery, flotation, filtration and water treatment. In this study low cost spargers are fabricated, utilizing a new method. Nano- and microstructured glass bead spargers were fabricated in a temperature-controlled convection furnace. Scanning electron microscopy, X-ray diffraction, and porosimetry were used to further characterize the fabricated spargers. The bubble sizes and distributions were determined in an experimental setup comprising a bubble column equipped with a semi-professional camera to record the sizes of the bubbles in the column and resulting bubbles were photographed at different gas flow rates. In comparison to existing commercial spargers, the spargers fabricated in this study produce bubbles smaller than 100 µm in size. As substrate, first disc shaped and conical shaped glass spargers are fabricated. They are then covered by a layer of copper through two methods: manual method and plasma focus deposition method. The effect of reaction temperature and fluid properties were investigated on the size and the distribution of the produced bubbles: the best sintering temperature for copper oxide conical samples was 600 and 610 oC.