Comparison of PES membrane chemical cleaning efficiency using different protocols

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Comparison of PES membrane chemical cleaning efficiency using different protocols
Original language description
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.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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