Ferric Oxyhydroxide as Fouling Prevention Reagent for Low-Pressure Membranes
| Autor: | Marta Litynska, Roman Antoniuk, Nataliia Tolstopalova, Astrelin Igor M |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
lcsh:GE1-350
hybrid technology Fouling colour Chemistry Microfiltration microfiltration Ferric oxyhydroxide Natural organic matter lcsh:TD1-1066 Membrane Adsorption Chemical engineering adsorption Reagent natural organic matter lcsh:Environmental technology. Sanitary engineering Ecology Evolution Behavior and Systematics lcsh:Environmental sciences General Environmental Science |
| Zdroj: | Journal of Ecological Engineering, Vol 20, Iss 3, Pp 77-84 (2019) |
| ISSN: | 2299-8993 |
| Popis: | Membrane technologies are very popular both in drinking water and wastewater treatment due to their significant advantages. However, colloidal fouling is one of the main disadvantages of low-pressure membranes. Fine particle ferric oxyhydroxide effectively protected membrane and adsorb humates, phosphates, arsenates, etc. Dividing of adsorption and microfiltration into two stages was the recommended regime. Mixing with adsorbent was the first one and separation on the membrane was the second stage. The adsorbent with immobilized impurities formed protective layer on the membrane surface. The non-adsorbed organic matter was left on this thickness. During backwash, water flow removed the adsorbent with immobilized pollutants. Afterwards, membrane was as clean as before filtration. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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