Influence of the operating parameters on the flux during microfiltration of the steepwater in the starch industry
| Autor: | M Dragana Soronja-Simovic, Jurislav Babić, Drago Šubarić, Z Aleksandar Fistes, S Biljana Pajin, P Ljubica Dokic, I Zita Seres |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Materials science
Microfiltration Flux 02 engineering and technology Static mixer law.invention 020401 chemical engineering law lcsh:Technology (General) Dry matter steepwater microfiltration ceramic membranre permeate flux dry matter content 0204 chemical engineering Chromatography Turbulence drymatter content General Engineering Permeation 021001 nanoscience & nanotechnology Pulp and paper industry 6. Clean water Volumetric flow rate Wastewater lcsh:T1-995 0210 nano-technology |
| Zdroj: | Acta Periodica Technologica, Vol 2012, Iss 43, Pp 225-235 (2012) |
| ISSN: | 1450-7188 |
| Popis: | The subject of the work is the possibility of applying microfiltration through a ceramic tubular membrane with 100 nm pore sizes to the steepwater obtained in the production process of corn starch. The dry matter content should be reduced in the steepwater permeate. Thus the consumption of the process water would be reduced, the nutrients from the steepwater could be exploited as feed and the wastewater problem would consequently be solved. The objective of the work was to examine the influence of the operating parameters on the permeate flux during steepwater microfiltration. The parameters that vary in the course of microfiltration, were the transmembrane pressur and flow rate, while the permeate flux and dry matter content of the permeate and retentate were the dependent parameters, constantly monitored during the process. Another objective of this study was to investigate the influence of static turbulence promoter on the permeate flux during steepwater microfiltration. Static mixers enhance permeate flux, thus the microfiltration can be performed longer. As a result of the statistical analysis, the optimal conditions for steepwater microfiltration were determined. The maximum value of the permeate flux without mixer (25 lm-2h-1) was achieved at a pressure of 2 bars and a flow rate around 100 lh-1. With the use of static mixer the flux is 2,5 times higher compared to the one obtained without the mixer. The dry matter content of the permeat after 2.5 hours of mucrofiltration was lowered by 40%. |
| Databáze: | OpenAIRE |
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