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Title: THE OPTIMIZATION OF THE NANOFILTRATION (NF) CONCENTRATE RECIRCULATION FOR PHOSPHORUS RECOVERY IN MBR WASTEWATER TREATMENT
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THE OPTIMIZATION OF THE NANOFILTRATION (NF) CONCENTRATE RECIRCULATION FOR PHOSPHORUS RECOVERY IN MBR WASTEWATER TREATMENT
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1314-2704
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English
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17
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51
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The EU?s concentration limit for discharge from wastewater treatment plants is 1 or 2 mg P/dm3 for total phosphorus, signifying a P removal of 80% or more, in order to protect the environment, in sensitive areas which are subject to eutrophication. A membrane bioreactor (MBR) can bused for wastewater treatment, transforming it into reusable water when a tertiary treatment such as nanofiltration (NF) is applied. This step produces a concentrated waste stream. Membrane bioreactors (MBR) permeates are a potentially source for phosphorus (P) recovery. High phosphorous levels in water effluents must be low to avoid eutrophication. An integrated MBR - nanofiltration process with recirculation can assure phosphorous recovery. This study presents an overview on the performances of two MBR NF systems with NF concentrate recirculation systems, with and without P recovery. In order to evaluate the performances, a ?blank? MBR was used as a reference. The obtained results showed that for both systems with NF concentrate recirculation, the NF permeate has a sufficiently low P level, allowing both discharging and also its reusing, for example as cooling water in power plants or for irrigation purposes.
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conference
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17th International Multidisciplinary Scientific GeoConference SGEM 2017
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17th International Multidisciplinary Scientific GeoConference SGEM 2017, 29 June - 5 July, 2017
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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973-978
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29 June - 5 July, 2017
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website
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cdrom
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4010
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MBR; nanofiltration; phosphorous; wastewater
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