Studium procesu membránové mikrofiltrace kombinované s iontovou výměnou na přírodních zeolitech

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The Study of a Process Combining Cross-flow Micro-filtration and Ion-exchange on Natural Zeolite

Popis výsledku v původním jazyce

This contribution deals with the study of process combining both cross-flow microfiltration and ionic exchange on zeolite added to the feed stream. In this work, natural zeolite - clinoptilolite- was characterised as an ion-exchanger and its ability to adsorb NH4+ ions was tested. The batch experiments for sorptive capacity determination were performed for several initial concentrations of the NH4Cl. Both the concentrations of NH4+ ions in the feed and in the filtrate were determined by spectrophotometry measurements. All experiments were performed under isothermal conditions and then the sorption isotherm was estimated. The next experiments dealt with sorption measurements at cross-flow microfiltration of NH4Cl solution with zeolite addition. It was found out, that clinoptilolite addition to the feed stream of microfiltration unit does not reduce the permeate flux significantly, the convenient operating conditions were pressure difference below 90 kPa and retentate velocity cca 2 m/s.

Název v anglickém jazyce

The Study of a Process Combining Cross-flow Micro-filtration and Ion-exchange on Natural Zeolite

Popis výsledku anglicky

This contribution deals with the study of process combining both cross-flow microfiltration and ionic exchange on zeolite added to the feed stream. In this work, natural zeolite - clinoptilolite- was characterised as an ion-exchanger and its ability to adsorb NH4+ ions was tested. The batch experiments for sorptive capacity determination were performed for several initial concentrations of the NH4Cl. Both the concentrations of NH4+ ions in the feed and in the filtrate were determined by spectrophotometry measurements. All experiments were performed under isothermal conditions and then the sorption isotherm was estimated. The next experiments dealt with sorption measurements at cross-flow microfiltration of NH4Cl solution with zeolite addition. It was found out, that clinoptilolite addition to the feed stream of microfiltration unit does not reduce the permeate flux significantly, the convenient operating conditions were pressure difference below 90 kPa and retentate velocity cca 2 m/s.

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of 31st International Conference of Slovak Society of Chemical Engineering

ISBN

80-227-2052-6

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

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Název nakladatele

Slovak Society of Chemical Engineering

Místo vydání

Bratislava, Slovensko

Místo konání akce

Tatranské Matliare, Slovensko

Datum konání akce

24. 5. 2004

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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