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Combined Membrane Processes : Comparing of Dead-end and Cross-flow Modes
Authors: Cakl Jiří | Jiránková Hana | Doleček Petr | Hrubá Martina
Year: 2006
Type of publication: článek ve sborníku
Name of source: Proceedings of the 17th International Congress of Chemical and Process Engineering CHISA 2006
Publisher name: Process Engineering Publisher Ing. Jan Novosad
Place: Praha, Česká republika
Page from-to: P3.116/1-P3.116/7
Titles:
Language Name Abstract Keywords
cze Kombinované membránové procesy: Srovnání výsledků měření při dead-end a cross-flow uspořádání Příspěvek se zabývá studiem kombinavaného membránového procesu spojujícího mikrofiltraci a iontovou výměnu na A zeolitu. Byly provedeny předběžné experimenty pro stanovení sorpční kapacity a studium reakční kinetiky. Z těchto měření byly určeny parametry Langmuirovy a Freundlichovy izotermy. Dále byl navržen teoretický model pro předpověď chování dynamického systému. Kombinovaný membránový proces;Sorpční kapacita;Zeolit
eng Combined Membrane Processes : Comparing of Dead-end and Cross-flow Modes This contribution deals with the study of process combining both cross-flow microfiltration and ionic exchange on zeolite A added to the feed stream. The experimental set-up for cross-flow microfiltration was used with ceramic tubular membrane, the next set of measurements was carried out with dead-end hollow fiber microfiltration unit. It was found, that the permeate flux reduction was not significant, if we used powdered zeolite as an additive in cross-flow microfiltration. In contrast to this fact, granulated zeolite tendency for irreversible membrane fouling was rather high at permeate fluxes above 40 L/m2.hr, even if backflushing was used. The preliminary batch experiments were performed for the sorptive kinetics and the sorptive capacity determination. From these measurements the parameters of Langmuir and Freundlich isotherms were determined. A theoretical model for dynamic sorptive process prediction was suggested and verified ranging from batch experiment results. Cross-flow microfiltrationů;Dead-end configuration;Zeolite;Sorptive capacity

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