Treatment of high arsenic content wastewater by membrane filtration

In this study, nanofiltration (NF) and reverse osmosis (RO) were used in laboratory scale to concentrate As containing wastewater. Cross flow membrane filtration apparatus was applied in batch mode with recycling the retentate. Then the retentate of membrane filtration was treated with lime (Ca(OH)...

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Veröffentlicht in:	Desalination 2009-05, Vol.240 (1), p.270-273
Hauptverfasser:	Fogarassy, E., Galambos, I., Bekassy-Molnar, E., Vatai, Gy
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Arsenic removal Chemical engineering Exact sciences and technology General purification processes Membrane filtration Membrane separation (reverse osmosis, dialysis...) Pollution Wastewater Wastewaters Water treatment and pollution
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Beschreibung
Zusammenfassung:	In this study, nanofiltration (NF) and reverse osmosis (RO) were used in laboratory scale to concentrate As containing wastewater. Cross flow membrane filtration apparatus was applied in batch mode with recycling the retentate. Then the retentate of membrane filtration was treated with lime (Ca(OH) 2) and sulfur hydrogen (H 2S) to help the precipitation for producing clean water and a low volume, highly concentrated As waste.
ISSN:	0011-9164 1873-4464
DOI:	10.1016/j.desal.2007.11.078