The efficiency of a membrane bioreactor in drinking water denitrification

The membrane bioreactor (MBR) system was investigated regarding its nitrate removal capacity from drinking water. The performance of a pilot-scale MBR was tested, depending on the operational parameters, using sucrose as a carbon source. Drinking water from the source was introduced into th...

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Main Authors: Petrovič Aleksandra, Simonič Marjana
Format: Article
Language:English
Published: Association of the Chemical Engineers of Serbia 2015-01-01
Series:Chemical Industry and Chemical Engineering Quarterly
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1451-9372/2015/1451-93721400026P.pdf
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author Petrovič Aleksandra
Simonič Marjana
author_facet Petrovič Aleksandra
Simonič Marjana
author_sort Petrovič Aleksandra
collection DOAJ
description The membrane bioreactor (MBR) system was investigated regarding its nitrate removal capacity from drinking water. The performance of a pilot-scale MBR was tested, depending on the operational parameters, using sucrose as a carbon source. Drinking water from the source was introduced into the reactor in order to study the influence of flow-rate on the nitrate removal and denitrification efficiency of drinking water. The content of the nitrate was around 70 mg/L and the C/N ratio was 3:1. Nitrate removal efficiencies above 90% were obtained by flow-rates lower than 4.8 L/h. The specific denitrification rates varied between 0.02 and 0.16 g/L NO3/ (g/L MLSS•d). The efficiencies and nitrate removal were noticeably affected by the flow-rate and hydraulic retention times. At the maximum flow-rate of 10.2 L/h still 68% of the nitrate had been removed, whilst the highest specific denitrification rate was achieved at 0.2738 g/L NO3/ (g/L) MLSS•d). The maximum reactor removal capacity was calculated at 8.75 g NO3/m3•h.
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spelling doaj.art-1a4c5003b1e242b7b390f6a1e538f6b32022-12-22T00:45:08ZengAssociation of the Chemical Engineers of SerbiaChemical Industry and Chemical Engineering Quarterly1451-93722217-74342015-01-0121226927510.2298/CICEQ131129026P1451-93721400026PThe efficiency of a membrane bioreactor in drinking water denitrificationPetrovič Aleksandra0Simonič Marjana1University of Maribor, Faculty of Chemistry and Chemical Engineering, Maribor, SloveniaUniversity of Maribor, Faculty of Chemistry and Chemical Engineering, Maribor, SloveniaThe membrane bioreactor (MBR) system was investigated regarding its nitrate removal capacity from drinking water. The performance of a pilot-scale MBR was tested, depending on the operational parameters, using sucrose as a carbon source. Drinking water from the source was introduced into the reactor in order to study the influence of flow-rate on the nitrate removal and denitrification efficiency of drinking water. The content of the nitrate was around 70 mg/L and the C/N ratio was 3:1. Nitrate removal efficiencies above 90% were obtained by flow-rates lower than 4.8 L/h. The specific denitrification rates varied between 0.02 and 0.16 g/L NO3/ (g/L MLSS•d). The efficiencies and nitrate removal were noticeably affected by the flow-rate and hydraulic retention times. At the maximum flow-rate of 10.2 L/h still 68% of the nitrate had been removed, whilst the highest specific denitrification rate was achieved at 0.2738 g/L NO3/ (g/L) MLSS•d). The maximum reactor removal capacity was calculated at 8.75 g NO3/m3•h.http://www.doiserbia.nb.rs/img/doi/1451-9372/2015/1451-93721400026P.pdfcapacitydenitrificationdrinking waterefficiencymembrane bioreactorsucrose
spellingShingle Petrovič Aleksandra
Simonič Marjana
The efficiency of a membrane bioreactor in drinking water denitrification
Chemical Industry and Chemical Engineering Quarterly
capacity
denitrification
drinking water
efficiency
membrane bioreactor
sucrose
title The efficiency of a membrane bioreactor in drinking water denitrification
title_full The efficiency of a membrane bioreactor in drinking water denitrification
title_fullStr The efficiency of a membrane bioreactor in drinking water denitrification
title_full_unstemmed The efficiency of a membrane bioreactor in drinking water denitrification
title_short The efficiency of a membrane bioreactor in drinking water denitrification
title_sort efficiency of a membrane bioreactor in drinking water denitrification
topic capacity
denitrification
drinking water
efficiency
membrane bioreactor
sucrose
url http://www.doiserbia.nb.rs/img/doi/1451-9372/2015/1451-93721400026P.pdf
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AT simonicmarjana theefficiencyofamembranebioreactorindrinkingwaterdenitrification
AT petrovicaleksandra efficiencyofamembranebioreactorindrinkingwaterdenitrification
AT simonicmarjana efficiencyofamembranebioreactorindrinkingwaterdenitrification