Development of an integrated membrane process for water reclamation

An integrated membrane process (IMP) comprising a membrane bioreactor (MBR) and a reverse osmosis (RO) process was developed for water reclamation. Wastewater was treated by an MBR operated at a sludge retention time (SRT) of 20 days and a hydraulic retention time (HRT) of 5.5 h. The IMP had an over...

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Veröffentlicht in:Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 51(2005), 6-7 vom: 29., Seite 455-63
1. Verfasser: Lew, C H (VerfasserIn)
Weitere Verfasser: Hu, J Y, Song, L F, Lee, L Y, Ong, S L, Ng, W J, Seah, H
Format: Aufsatz
Sprache:English
Veröffentlicht: 2005
Zugriff auf das übergeordnete Werk:Water science and technology : a journal of the International Association on Water Pollution Research
Schlagworte:Comparative Study Journal Article Industrial Waste Membranes, Artificial Organic Chemicals Sewage Carbon 7440-44-0
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245 1 0 |a Development of an integrated membrane process for water reclamation 
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520 |a An integrated membrane process (IMP) comprising a membrane bioreactor (MBR) and a reverse osmosis (RO) process was developed for water reclamation. Wastewater was treated by an MBR operated at a sludge retention time (SRT) of 20 days and a hydraulic retention time (HRT) of 5.5 h. The IMP had an overall recovery efficiency of 80%. A unique feature of the IMP was the recycling of a fraction of RO concentrate back to the MBR. Experimental results revealed that a portion of the slow- and hard-to-degrade organic constituents in the recycle stream could be degraded by an acclimated biomass leading to an improved MBR treatment efficiency. Although recycling concentrated constituents could impose an inhibitory effect on the biomass and suppress their respiratory activities, results obtained suggested that operating MBR (in the novel IMP) at an F/M ratio below 0.03 g TOC/g VSS.day could yield an effluent quality comparable to that achievable without concentrate recycling. It is noted in this study that the novel IMP could achieve an average overall TOC removal efficiency of 88.940% and it consistently produced product water usable for high value reuse applications 
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650 4 |a Journal Article 
650 7 |a Industrial Waste  |2 NLM 
650 7 |a Membranes, Artificial  |2 NLM 
650 7 |a Organic Chemicals  |2 NLM 
650 7 |a Sewage  |2 NLM 
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700 1 |a Hu, J Y  |e verfasserin  |4 aut 
700 1 |a Song, L F  |e verfasserin  |4 aut 
700 1 |a Lee, L Y  |e verfasserin  |4 aut 
700 1 |a Ong, S L  |e verfasserin  |4 aut 
700 1 |a Ng, W J  |e verfasserin  |4 aut 
700 1 |a Seah, H  |e verfasserin  |4 aut 
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