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Biological treatment of fish processing wastewater: A case study from Sfax City (Southeastern Tunisia).

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Title: Biological treatment of fish processing wastewater: A case study from Sfax City (Southeastern Tunisia).
Authors: Jemli, Meryem1 meryem_jemli@yahoo.fr, Karray, Fatma1, Feki, Firas1, Loukil, Slim1, Mhiri, Najla1, Aloui, Fathi1, Sayadi, Sami1
Source: Journal of Environmental Sciences (Elsevier). Apr2015, Vol. 30, p102-112. 11p.
Subjects: Biological treatment of water, Water reuse in fishery processing, Bioreactors, Proteobacteria, Phylogeny
Abstract: The present work presents a study of the biological treatment of fish processing wastewater at salt concentration of 55 g/L. Wastewater was treated by both continuous stirred-tank reactor (CSTR) and membrane bioreactor (MBR) during 50 and 100 days, respectively. These biological processes involved salt-tolerant bacteria from natural hypersaline environments at different organic loading rates (OLRs). The phylogenetic analysis of the corresponding excised DGGE bands has demonstrated that the taxonomic affiliation of the most dominant species includes Halomonadaceae and Flavobacteriaceae families of the Proteobacteria (Gamma-proteobacteria class) and the Bacteroidetes phyla, respectively. The results of MBR were better than those of CSTR in the removal of total organic carbon with efficiencies from 97.9% to 98.6%. Nevertheless, salinity with increasing OLR aggravates fouling that requires more cleaning for a membrane in MBR while leads to deterioration of sludge settleability and effluent quality in CSTR. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Environmental Sciences (Elsevier) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 109214163
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Biological treatment of fish processing wastewater: A case study from Sfax City (Southeastern Tunisia).
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  Data: <searchLink fieldCode="AR" term="%22Jemli%2C+Meryem%22">Jemli, Meryem</searchLink><relatesTo>1</relatesTo><i> meryem_jemli@yahoo.fr</i><br /><searchLink fieldCode="AR" term="%22Karray%2C+Fatma%22">Karray, Fatma</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Feki%2C+Firas%22">Feki, Firas</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Loukil%2C+Slim%22">Loukil, Slim</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Mhiri%2C+Najla%22">Mhiri, Najla</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Aloui%2C+Fathi%22">Aloui, Fathi</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sayadi%2C+Sami%22">Sayadi, Sami</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Environmental+Sciences+%28Elsevier%29%22">Journal of Environmental Sciences (Elsevier)</searchLink>. Apr2015, Vol. 30, p102-112. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Biological+treatment+of+water%22">Biological treatment of water</searchLink><br /><searchLink fieldCode="DE" term="%22Water+reuse+in+fishery+processing%22">Water reuse in fishery processing</searchLink><br /><searchLink fieldCode="DE" term="%22Bioreactors%22">Bioreactors</searchLink><br /><searchLink fieldCode="DE" term="%22Proteobacteria%22">Proteobacteria</searchLink><br /><searchLink fieldCode="DE" term="%22Phylogeny%22">Phylogeny</searchLink>
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  Data: The present work presents a study of the biological treatment of fish processing wastewater at salt concentration of 55 g/L. Wastewater was treated by both continuous stirred-tank reactor (CSTR) and membrane bioreactor (MBR) during 50 and 100 days, respectively. These biological processes involved salt-tolerant bacteria from natural hypersaline environments at different organic loading rates (OLRs). The phylogenetic analysis of the corresponding excised DGGE bands has demonstrated that the taxonomic affiliation of the most dominant species includes Halomonadaceae and Flavobacteriaceae families of the Proteobacteria (Gamma-proteobacteria class) and the Bacteroidetes phyla, respectively. The results of MBR were better than those of CSTR in the removal of total organic carbon with efficiencies from 97.9% to 98.6%. Nevertheless, salinity with increasing OLR aggravates fouling that requires more cleaning for a membrane in MBR while leads to deterioration of sludge settleability and effluent quality in CSTR. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Journal of Environmental Sciences (Elsevier) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.jes.2014.11.002
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 102
    Subjects:
      – SubjectFull: Biological treatment of water
        Type: general
      – SubjectFull: Water reuse in fishery processing
        Type: general
      – SubjectFull: Bioreactors
        Type: general
      – SubjectFull: Proteobacteria
        Type: general
      – SubjectFull: Phylogeny
        Type: general
    Titles:
      – TitleFull: Biological treatment of fish processing wastewater: A case study from Sfax City (Southeastern Tunisia).
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            NameFull: Jemli, Meryem
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            NameFull: Karray, Fatma
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            NameFull: Feki, Firas
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            NameFull: Loukil, Slim
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            NameFull: Mhiri, Najla
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            NameFull: Aloui, Fathi
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            NameFull: Sayadi, Sami
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              Text: Apr2015
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              Y: 2015
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              Value: 30
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            – TitleFull: Journal of Environmental Sciences (Elsevier)
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