Comparison of PES membrane chemical cleaning efficiency using different protocols

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F12%3A00399663" target="_blank" >RIV/67985939:_____/12:00399663 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.proeng.2012.08.979" target="_blank" >http://dx.doi.org/10.1016/j.proeng.2012.08.979</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.proeng.2012.08.979" target="_blank" >10.1016/j.proeng.2012.08.979</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of PES membrane chemical cleaning efficiency using different protocols

Popis výsledku v původním jazyce

Significant differences between acid ? alkaline and reverse alkaline ? acid cycles of chemical cleaning were not observed. The acidic phase application efficiency showed similar trend affected rather than acid solution by optimal pH range between 2.5 - 3.5. Optimal pH range calibration by citric acid only is quite difficult and therefore combination with another acid can be more proper solution. Optimal time range for acid cleaning phase was estimated from 4 to 6 hours when 80 - 90% efficiency is achieved already in 2 hours. The acid cleaning is followed by water flushing and oxidative cleaning. Sodium hypochlorite offers low costs and good availability for oxidizing agent and pH adjustment by sodium hydroxide. Optimal time range for alkali cleaning phase was estimated from 4 to 6 hours or longer. More than 80 % of membranes were cleaned to 90-95 % flux recovery.

Název v anglickém jazyce

Comparison of PES membrane chemical cleaning efficiency using different protocols

Popis výsledku anglicky

Significant differences between acid ? alkaline and reverse alkaline ? acid cycles of chemical cleaning were not observed. The acidic phase application efficiency showed similar trend affected rather than acid solution by optimal pH range between 2.5 - 3.5. Optimal pH range calibration by citric acid only is quite difficult and therefore combination with another acid can be more proper solution. Optimal time range for acid cleaning phase was estimated from 4 to 6 hours when 80 - 90% efficiency is achieved already in 2 hours. The acid cleaning is followed by water flushing and oxidative cleaning. Sodium hypochlorite offers low costs and good availability for oxidizing agent and pH adjustment by sodium hydroxide. Optimal time range for alkali cleaning phase was estimated from 4 to 6 hours or longer. More than 80 % of membranes were cleaned to 90-95 % flux recovery.

Druh

D - Stať ve sborníku

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

Procedia Engineering

ISBN

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ISSN

1877-7058

e-ISSN

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Počet stran výsledku

4

Strana od-do

1860-1863

Název nakladatele

Elsevier Ltd

Místo vydání

Amsterdam

Místo konání akce

London

Datum konání akce

23. 9. 2012

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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