| Autor: |
A. N. Zolotnikov, A. M. Kutepov, A. E. Kruglik, R. M. Malyshev, V. E. Bomshtein |
| Rok vydání: |
2004 |
| Předmět: |
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| Zdroj: |
Theoretical Foundations of Chemical Engineering. 38:448-453 |
| ISSN: |
0040-5795 |
| DOI: |
10.1023/b:tfce.0000036975.55440.25 |
| Popis: |
A study is undertaken to analyze the enhancement of galvanocoagulation in wastewater treatment to remove nonferrous and ferrous metal ions on application of low-frequency pulsations to the medium being treated. It is noted that, in most cases, galvanocoagulation is controlled by the mass transfer in the anodic dissolution of an element of a galvanic couple and by the ion transfer to the cathode, which are determined by the hydrodynamic conditions at the interface. A procedure is proposed to select the hydrodynamic conditions in the apparatus on application of low-frequency pulsations to the medium which enhance mass transfer. The procedure is tested on the example of treatment of wastewater containing Cr+3 and Cr+6 ions in a vertical pulsation galvanocoagulator of original design. It is shown that fluidization caused by the application of pulsations increases the rates of mass transfer and overall galvanocoagulation process. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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