Dolomite Reactor, a Retrofitting Approach for Activated Sludge Against Bulking
Abstract This study aims to assess the application of natural dolomite for upgrading activated sludge systems that encounter sludge bulking. For this purpose, a pilot of conventional activated sludge with 4.8 cubic meters volume was operated for 10 months in real condition and inoculated intermitten...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Ebrahimi, Morteza [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016 |
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| Schlagwörter: |
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| Anmerkung: |
© Shiraz University 2016 |
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| Übergeordnetes Werk: |
Enthalten in: Iranian journal of science and technology - Cham, Switzerland : Springer International Pubishing, 2004, 42(2016), 3 vom: 13. Okt., Seite 1215-1221 |
|---|---|
| Übergeordnetes Werk: |
volume:42 ; year:2016 ; number:3 ; day:13 ; month:10 ; pages:1215-1221 |
| Links: |
|---|
| DOI / URN: |
10.1007/s40995-016-0120-x |
|---|
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SPR038038099 |
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| 520 | |a Abstract This study aims to assess the application of natural dolomite for upgrading activated sludge systems that encounter sludge bulking. For this purpose, a pilot of conventional activated sludge with 4.8 cubic meters volume was operated for 10 months in real condition and inoculated intermittently with sludge having filamentous bulking problem. The experimental results showed that dolomite could retain TSS, BOD, and COD removal efficiencies on 90, 95 and 96 %, respectively. It could also reduce the variations of sludge volume and effluent quality. By increasing the dolomite concentrations from 25 g/$ m^{3} $ to the optimum level of 100 g/$ m^{3} $, the soluble calcium was developed 24 %. This could enhance the sludge settleability in which the counts of filamentous bacteria, colony size, and sludge volume index (SVI) reduced 44 %, 1 mm, and 150 mL/g, respectively. Here, Sphaerotilus natans and Type 021N were considerably removed in high dosages. Nevertheless, Microthrix Parvicella showed more resistance. Regarding artificial neural network simulation, it was realized that the optimum dosage of dolomite should be adjusted with MLSS concentrations to keep SVI at the proper range. Consequently, dolomite was verified as efficient retrofitting approach for activated sludge systems. However, this solution requires further studies in full-scale operation. | ||
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10.1007/s40995-016-0120-x doi (DE-627)SPR038038099 (SPR)s40995-016-0120-x-e DE-627 ger DE-627 rakwb eng Ebrahimi, Morteza verfasserin aut Dolomite Reactor, a Retrofitting Approach for Activated Sludge Against Bulking 2016 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Shiraz University 2016 Abstract This study aims to assess the application of natural dolomite for upgrading activated sludge systems that encounter sludge bulking. For this purpose, a pilot of conventional activated sludge with 4.8 cubic meters volume was operated for 10 months in real condition and inoculated intermittently with sludge having filamentous bulking problem. The experimental results showed that dolomite could retain TSS, BOD, and COD removal efficiencies on 90, 95 and 96 %, respectively. It could also reduce the variations of sludge volume and effluent quality. By increasing the dolomite concentrations from 25 g/$ m^{3} $ to the optimum level of 100 g/$ m^{3} $, the soluble calcium was developed 24 %. This could enhance the sludge settleability in which the counts of filamentous bacteria, colony size, and sludge volume index (SVI) reduced 44 %, 1 mm, and 150 mL/g, respectively. Here, Sphaerotilus natans and Type 021N were considerably removed in high dosages. Nevertheless, Microthrix Parvicella showed more resistance. Regarding artificial neural network simulation, it was realized that the optimum dosage of dolomite should be adjusted with MLSS concentrations to keep SVI at the proper range. Consequently, dolomite was verified as efficient retrofitting approach for activated sludge systems. However, this solution requires further studies in full-scale operation. Activated sludge (dpeaa)DE-He213 Artificial neural network (ANN) (dpeaa)DE-He213 Bulking (dpeaa)DE-He213 Dolomite (dpeaa)DE-He213 Filamentous bacteria (dpeaa)DE-He213 Sludge (dpeaa)DE-He213 Wastewater treatment (dpeaa)DE-He213 Badalians Gholikandi, Gagik aut Jamshidi, Shervin (orcid)0000-0003-3067-1529 aut Ezzo, Hady aut Enthalten in Iranian journal of science and technology Cham, Switzerland : Springer International Pubishing, 2004 42(2016), 3 vom: 13. Okt., Seite 1215-1221 (DE-627)SPR038034816 (DE-600)2843077-3 2364-1819 nnns volume:42 year:2016 number:3 day:13 month:10 pages:1215-1221 https://dx.doi.org/10.1007/s40995-016-0120-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 42 2016 3 13 10 1215-1221 |
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10.1007/s40995-016-0120-x doi (DE-627)SPR038038099 (SPR)s40995-016-0120-x-e DE-627 ger DE-627 rakwb eng Ebrahimi, Morteza verfasserin aut Dolomite Reactor, a Retrofitting Approach for Activated Sludge Against Bulking 2016 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Shiraz University 2016 Abstract This study aims to assess the application of natural dolomite for upgrading activated sludge systems that encounter sludge bulking. For this purpose, a pilot of conventional activated sludge with 4.8 cubic meters volume was operated for 10 months in real condition and inoculated intermittently with sludge having filamentous bulking problem. The experimental results showed that dolomite could retain TSS, BOD, and COD removal efficiencies on 90, 95 and 96 %, respectively. It could also reduce the variations of sludge volume and effluent quality. By increasing the dolomite concentrations from 25 g/$ m^{3} $ to the optimum level of 100 g/$ m^{3} $, the soluble calcium was developed 24 %. This could enhance the sludge settleability in which the counts of filamentous bacteria, colony size, and sludge volume index (SVI) reduced 44 %, 1 mm, and 150 mL/g, respectively. Here, Sphaerotilus natans and Type 021N were considerably removed in high dosages. Nevertheless, Microthrix Parvicella showed more resistance. Regarding artificial neural network simulation, it was realized that the optimum dosage of dolomite should be adjusted with MLSS concentrations to keep SVI at the proper range. Consequently, dolomite was verified as efficient retrofitting approach for activated sludge systems. However, this solution requires further studies in full-scale operation. Activated sludge (dpeaa)DE-He213 Artificial neural network (ANN) (dpeaa)DE-He213 Bulking (dpeaa)DE-He213 Dolomite (dpeaa)DE-He213 Filamentous bacteria (dpeaa)DE-He213 Sludge (dpeaa)DE-He213 Wastewater treatment (dpeaa)DE-He213 Badalians Gholikandi, Gagik aut Jamshidi, Shervin (orcid)0000-0003-3067-1529 aut Ezzo, Hady aut Enthalten in Iranian journal of science and technology Cham, Switzerland : Springer International Pubishing, 2004 42(2016), 3 vom: 13. Okt., Seite 1215-1221 (DE-627)SPR038034816 (DE-600)2843077-3 2364-1819 nnns volume:42 year:2016 number:3 day:13 month:10 pages:1215-1221 https://dx.doi.org/10.1007/s40995-016-0120-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 42 2016 3 13 10 1215-1221 |
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10.1007/s40995-016-0120-x doi (DE-627)SPR038038099 (SPR)s40995-016-0120-x-e DE-627 ger DE-627 rakwb eng Ebrahimi, Morteza verfasserin aut Dolomite Reactor, a Retrofitting Approach for Activated Sludge Against Bulking 2016 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Shiraz University 2016 Abstract This study aims to assess the application of natural dolomite for upgrading activated sludge systems that encounter sludge bulking. For this purpose, a pilot of conventional activated sludge with 4.8 cubic meters volume was operated for 10 months in real condition and inoculated intermittently with sludge having filamentous bulking problem. The experimental results showed that dolomite could retain TSS, BOD, and COD removal efficiencies on 90, 95 and 96 %, respectively. It could also reduce the variations of sludge volume and effluent quality. By increasing the dolomite concentrations from 25 g/$ m^{3} $ to the optimum level of 100 g/$ m^{3} $, the soluble calcium was developed 24 %. This could enhance the sludge settleability in which the counts of filamentous bacteria, colony size, and sludge volume index (SVI) reduced 44 %, 1 mm, and 150 mL/g, respectively. Here, Sphaerotilus natans and Type 021N were considerably removed in high dosages. Nevertheless, Microthrix Parvicella showed more resistance. Regarding artificial neural network simulation, it was realized that the optimum dosage of dolomite should be adjusted with MLSS concentrations to keep SVI at the proper range. Consequently, dolomite was verified as efficient retrofitting approach for activated sludge systems. However, this solution requires further studies in full-scale operation. Activated sludge (dpeaa)DE-He213 Artificial neural network (ANN) (dpeaa)DE-He213 Bulking (dpeaa)DE-He213 Dolomite (dpeaa)DE-He213 Filamentous bacteria (dpeaa)DE-He213 Sludge (dpeaa)DE-He213 Wastewater treatment (dpeaa)DE-He213 Badalians Gholikandi, Gagik aut Jamshidi, Shervin (orcid)0000-0003-3067-1529 aut Ezzo, Hady aut Enthalten in Iranian journal of science and technology Cham, Switzerland : Springer International Pubishing, 2004 42(2016), 3 vom: 13. Okt., Seite 1215-1221 (DE-627)SPR038034816 (DE-600)2843077-3 2364-1819 nnns volume:42 year:2016 number:3 day:13 month:10 pages:1215-1221 https://dx.doi.org/10.1007/s40995-016-0120-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 42 2016 3 13 10 1215-1221 |
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10.1007/s40995-016-0120-x doi (DE-627)SPR038038099 (SPR)s40995-016-0120-x-e DE-627 ger DE-627 rakwb eng Ebrahimi, Morteza verfasserin aut Dolomite Reactor, a Retrofitting Approach for Activated Sludge Against Bulking 2016 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Shiraz University 2016 Abstract This study aims to assess the application of natural dolomite for upgrading activated sludge systems that encounter sludge bulking. For this purpose, a pilot of conventional activated sludge with 4.8 cubic meters volume was operated for 10 months in real condition and inoculated intermittently with sludge having filamentous bulking problem. The experimental results showed that dolomite could retain TSS, BOD, and COD removal efficiencies on 90, 95 and 96 %, respectively. It could also reduce the variations of sludge volume and effluent quality. By increasing the dolomite concentrations from 25 g/$ m^{3} $ to the optimum level of 100 g/$ m^{3} $, the soluble calcium was developed 24 %. This could enhance the sludge settleability in which the counts of filamentous bacteria, colony size, and sludge volume index (SVI) reduced 44 %, 1 mm, and 150 mL/g, respectively. Here, Sphaerotilus natans and Type 021N were considerably removed in high dosages. Nevertheless, Microthrix Parvicella showed more resistance. Regarding artificial neural network simulation, it was realized that the optimum dosage of dolomite should be adjusted with MLSS concentrations to keep SVI at the proper range. Consequently, dolomite was verified as efficient retrofitting approach for activated sludge systems. However, this solution requires further studies in full-scale operation. Activated sludge (dpeaa)DE-He213 Artificial neural network (ANN) (dpeaa)DE-He213 Bulking (dpeaa)DE-He213 Dolomite (dpeaa)DE-He213 Filamentous bacteria (dpeaa)DE-He213 Sludge (dpeaa)DE-He213 Wastewater treatment (dpeaa)DE-He213 Badalians Gholikandi, Gagik aut Jamshidi, Shervin (orcid)0000-0003-3067-1529 aut Ezzo, Hady aut Enthalten in Iranian journal of science and technology Cham, Switzerland : Springer International Pubishing, 2004 42(2016), 3 vom: 13. Okt., Seite 1215-1221 (DE-627)SPR038034816 (DE-600)2843077-3 2364-1819 nnns volume:42 year:2016 number:3 day:13 month:10 pages:1215-1221 https://dx.doi.org/10.1007/s40995-016-0120-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 42 2016 3 13 10 1215-1221 |
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10.1007/s40995-016-0120-x doi (DE-627)SPR038038099 (SPR)s40995-016-0120-x-e DE-627 ger DE-627 rakwb eng Ebrahimi, Morteza verfasserin aut Dolomite Reactor, a Retrofitting Approach for Activated Sludge Against Bulking 2016 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Shiraz University 2016 Abstract This study aims to assess the application of natural dolomite for upgrading activated sludge systems that encounter sludge bulking. For this purpose, a pilot of conventional activated sludge with 4.8 cubic meters volume was operated for 10 months in real condition and inoculated intermittently with sludge having filamentous bulking problem. The experimental results showed that dolomite could retain TSS, BOD, and COD removal efficiencies on 90, 95 and 96 %, respectively. It could also reduce the variations of sludge volume and effluent quality. By increasing the dolomite concentrations from 25 g/$ m^{3} $ to the optimum level of 100 g/$ m^{3} $, the soluble calcium was developed 24 %. This could enhance the sludge settleability in which the counts of filamentous bacteria, colony size, and sludge volume index (SVI) reduced 44 %, 1 mm, and 150 mL/g, respectively. Here, Sphaerotilus natans and Type 021N were considerably removed in high dosages. Nevertheless, Microthrix Parvicella showed more resistance. Regarding artificial neural network simulation, it was realized that the optimum dosage of dolomite should be adjusted with MLSS concentrations to keep SVI at the proper range. Consequently, dolomite was verified as efficient retrofitting approach for activated sludge systems. However, this solution requires further studies in full-scale operation. Activated sludge (dpeaa)DE-He213 Artificial neural network (ANN) (dpeaa)DE-He213 Bulking (dpeaa)DE-He213 Dolomite (dpeaa)DE-He213 Filamentous bacteria (dpeaa)DE-He213 Sludge (dpeaa)DE-He213 Wastewater treatment (dpeaa)DE-He213 Badalians Gholikandi, Gagik aut Jamshidi, Shervin (orcid)0000-0003-3067-1529 aut Ezzo, Hady aut Enthalten in Iranian journal of science and technology Cham, Switzerland : Springer International Pubishing, 2004 42(2016), 3 vom: 13. Okt., Seite 1215-1221 (DE-627)SPR038034816 (DE-600)2843077-3 2364-1819 nnns volume:42 year:2016 number:3 day:13 month:10 pages:1215-1221 https://dx.doi.org/10.1007/s40995-016-0120-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 42 2016 3 13 10 1215-1221 |
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Dolomite Reactor, a Retrofitting Approach for Activated Sludge Against Bulking |
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(DE-627)SPR038038099 (SPR)s40995-016-0120-x-e |
| title_full |
Dolomite Reactor, a Retrofitting Approach for Activated Sludge Against Bulking |
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Ebrahimi, Morteza |
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Iranian journal of science and technology |
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Iranian journal of science and technology |
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eng |
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2016 |
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Ebrahimi, Morteza Badalians Gholikandi, Gagik Jamshidi, Shervin Ezzo, Hady |
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42 |
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Elektronische Aufsätze |
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Ebrahimi, Morteza |
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10.1007/s40995-016-0120-x |
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(ORCID)0000-0003-3067-1529 |
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(orcid)0000-0003-3067-1529 |
| title_sort |
dolomite reactor, a retrofitting approach for activated sludge against bulking |
| title_auth |
Dolomite Reactor, a Retrofitting Approach for Activated Sludge Against Bulking |
| abstract |
Abstract This study aims to assess the application of natural dolomite for upgrading activated sludge systems that encounter sludge bulking. For this purpose, a pilot of conventional activated sludge with 4.8 cubic meters volume was operated for 10 months in real condition and inoculated intermittently with sludge having filamentous bulking problem. The experimental results showed that dolomite could retain TSS, BOD, and COD removal efficiencies on 90, 95 and 96 %, respectively. It could also reduce the variations of sludge volume and effluent quality. By increasing the dolomite concentrations from 25 g/$ m^{3} $ to the optimum level of 100 g/$ m^{3} $, the soluble calcium was developed 24 %. This could enhance the sludge settleability in which the counts of filamentous bacteria, colony size, and sludge volume index (SVI) reduced 44 %, 1 mm, and 150 mL/g, respectively. Here, Sphaerotilus natans and Type 021N were considerably removed in high dosages. Nevertheless, Microthrix Parvicella showed more resistance. Regarding artificial neural network simulation, it was realized that the optimum dosage of dolomite should be adjusted with MLSS concentrations to keep SVI at the proper range. Consequently, dolomite was verified as efficient retrofitting approach for activated sludge systems. However, this solution requires further studies in full-scale operation. © Shiraz University 2016 |
| abstractGer |
Abstract This study aims to assess the application of natural dolomite for upgrading activated sludge systems that encounter sludge bulking. For this purpose, a pilot of conventional activated sludge with 4.8 cubic meters volume was operated for 10 months in real condition and inoculated intermittently with sludge having filamentous bulking problem. The experimental results showed that dolomite could retain TSS, BOD, and COD removal efficiencies on 90, 95 and 96 %, respectively. It could also reduce the variations of sludge volume and effluent quality. By increasing the dolomite concentrations from 25 g/$ m^{3} $ to the optimum level of 100 g/$ m^{3} $, the soluble calcium was developed 24 %. This could enhance the sludge settleability in which the counts of filamentous bacteria, colony size, and sludge volume index (SVI) reduced 44 %, 1 mm, and 150 mL/g, respectively. Here, Sphaerotilus natans and Type 021N were considerably removed in high dosages. Nevertheless, Microthrix Parvicella showed more resistance. Regarding artificial neural network simulation, it was realized that the optimum dosage of dolomite should be adjusted with MLSS concentrations to keep SVI at the proper range. Consequently, dolomite was verified as efficient retrofitting approach for activated sludge systems. However, this solution requires further studies in full-scale operation. © Shiraz University 2016 |
| abstract_unstemmed |
Abstract This study aims to assess the application of natural dolomite for upgrading activated sludge systems that encounter sludge bulking. For this purpose, a pilot of conventional activated sludge with 4.8 cubic meters volume was operated for 10 months in real condition and inoculated intermittently with sludge having filamentous bulking problem. The experimental results showed that dolomite could retain TSS, BOD, and COD removal efficiencies on 90, 95 and 96 %, respectively. It could also reduce the variations of sludge volume and effluent quality. By increasing the dolomite concentrations from 25 g/$ m^{3} $ to the optimum level of 100 g/$ m^{3} $, the soluble calcium was developed 24 %. This could enhance the sludge settleability in which the counts of filamentous bacteria, colony size, and sludge volume index (SVI) reduced 44 %, 1 mm, and 150 mL/g, respectively. Here, Sphaerotilus natans and Type 021N were considerably removed in high dosages. Nevertheless, Microthrix Parvicella showed more resistance. Regarding artificial neural network simulation, it was realized that the optimum dosage of dolomite should be adjusted with MLSS concentrations to keep SVI at the proper range. Consequently, dolomite was verified as efficient retrofitting approach for activated sludge systems. However, this solution requires further studies in full-scale operation. © Shiraz University 2016 |
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| title_short |
Dolomite Reactor, a Retrofitting Approach for Activated Sludge Against Bulking |
| url |
https://dx.doi.org/10.1007/s40995-016-0120-x |
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| author2 |
Badalians Gholikandi, Gagik Jamshidi, Shervin Ezzo, Hady |
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Badalians Gholikandi, Gagik Jamshidi, Shervin Ezzo, Hady |
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| up_date |
2024-07-03T15:51:56.625Z |
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