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A novel bioprocess combining anaerobic co-digestion followed by ultra-filtration and microalgae culture for optimal olive mill wastewater treatment.

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Title: A novel bioprocess combining anaerobic co-digestion followed by ultra-filtration and microalgae culture for optimal olive mill wastewater treatment.
Authors: Karray, Raida1 (AUTHOR) Raida-1985@hotmail.com, Elloumi, Wièm1 (AUTHOR), Ben Ali, Rihab1 (AUTHOR), Loukil, Slim1 (AUTHOR), Chamkha, Mohamed1 (AUTHOR), Karray, Fatma1 (AUTHOR), Sayadi, Sami1,2 (AUTHOR) sami.sayadi@gmail.com
Source: Journal of Environmental Management. Feb2022, Vol. 303, pN.PAG-N.PAG. 1p.
Subjects: Anaerobic digestion, Wastewater treatment, Ultrafiltration, Upflow anaerobic sludge blanket reactors, Total suspended solids, Microalgae, Biogas production
Abstract: Treatment of olive mill wastewater (OMW) has received considerable research globally due to its influence on the technical, economic, and environmental sustainability of wastewater biogas production. This work presents a novel combined biological process for OMW treatment in terms to produce for the first time, treated OMW and a valuable microalgae biomass. The process involves anaerobic co-digestion (AD), a low cut-off membrane ultra-filtration (UF) and a subsequent Scenedesmus sp. culture. The AD of OMW was conducted at high initial COD ranging from 28 to 38 g/L using an up-flow anaerobic fixed bed bio-reactor (300 L). Results revealed that the maximum biogas production was about 0.507 L/g COD introduced.day containing 73% of methane corresponding to a methane yield of 0.370 L/g COD introduced.day obtained at an organic loading rate of 4.58 g COD/L.day. High removal levels of COD, total phenolic compounds, and total suspended solids in the anaerobic liquid digestate (ALD) were achieved after AD and UF. Scenedesmus sp. was then cultivated on the ultra-filtrated ALD. A maximum biomass productivity of 0.15 g/L.day was recorded when Scenedesmus sp. is grown on 25% of ultra-filtrated ALD with a maximum nitrogen removal rate of 15.18 mg/L.day and an almost total elimination of phosphorus and phenolic compounds. • Olive mill wastewater (OMW) was used as feedstock for methane-rich biogas production. • The digestate was used as feedstock for Scenedesmus sp. cultures. • UF-ALD of OMW enhances the Scenedesmus sp. biomass productivity to 0.15 g/L.day. • The novel combined bioprocess produces biogas, treated OMW and a valuable algae biomass. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Environmental Management is the property of Academic Press Inc. 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.)
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DbLabel: Engineering Source
An: 154243322
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: A novel bioprocess combining anaerobic co-digestion followed by ultra-filtration and microalgae culture for optimal olive mill wastewater treatment.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Karray%2C+Raida%22">Karray, Raida</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> Raida-1985@hotmail.com</i><br /><searchLink fieldCode="AR" term="%22Elloumi%2C+Wièm%22">Elloumi, Wièm</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ben+Ali%2C+Rihab%22">Ben Ali, Rihab</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Loukil%2C+Slim%22">Loukil, Slim</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chamkha%2C+Mohamed%22">Chamkha, Mohamed</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Karray%2C+Fatma%22">Karray, Fatma</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sayadi%2C+Sami%22">Sayadi, Sami</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> sami.sayadi@gmail.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Environmental+Management%22">Journal of Environmental Management</searchLink>. Feb2022, Vol. 303, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Anaerobic+digestion%22">Anaerobic digestion</searchLink><br /><searchLink fieldCode="DE" term="%22Wastewater+treatment%22">Wastewater treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Ultrafiltration%22">Ultrafiltration</searchLink><br /><searchLink fieldCode="DE" term="%22Upflow+anaerobic+sludge+blanket+reactors%22">Upflow anaerobic sludge blanket reactors</searchLink><br /><searchLink fieldCode="DE" term="%22Total+suspended+solids%22">Total suspended solids</searchLink><br /><searchLink fieldCode="DE" term="%22Microalgae%22">Microalgae</searchLink><br /><searchLink fieldCode="DE" term="%22Biogas+production%22">Biogas production</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Treatment of olive mill wastewater (OMW) has received considerable research globally due to its influence on the technical, economic, and environmental sustainability of wastewater biogas production. This work presents a novel combined biological process for OMW treatment in terms to produce for the first time, treated OMW and a valuable microalgae biomass. The process involves anaerobic co-digestion (AD), a low cut-off membrane ultra-filtration (UF) and a subsequent Scenedesmus sp. culture. The AD of OMW was conducted at high initial COD ranging from 28 to 38 g/L using an up-flow anaerobic fixed bed bio-reactor (300 L). Results revealed that the maximum biogas production was about 0.507 L/g COD introduced.day containing 73% of methane corresponding to a methane yield of 0.370 L/g COD introduced.day obtained at an organic loading rate of 4.58 g COD/L.day. High removal levels of COD, total phenolic compounds, and total suspended solids in the anaerobic liquid digestate (ALD) were achieved after AD and UF. Scenedesmus sp. was then cultivated on the ultra-filtrated ALD. A maximum biomass productivity of 0.15 g/L.day was recorded when Scenedesmus sp. is grown on 25% of ultra-filtrated ALD with a maximum nitrogen removal rate of 15.18 mg/L.day and an almost total elimination of phosphorus and phenolic compounds. • Olive mill wastewater (OMW) was used as feedstock for methane-rich biogas production. • The digestate was used as feedstock for Scenedesmus sp. cultures. • UF-ALD of OMW enhances the Scenedesmus sp. biomass productivity to 0.15 g/L.day. • The novel combined bioprocess produces biogas, treated OMW and a valuable algae biomass. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Environmental Management is the property of Academic Press Inc. 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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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jenvman.2021.114188
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Anaerobic digestion
        Type: general
      – SubjectFull: Wastewater treatment
        Type: general
      – SubjectFull: Ultrafiltration
        Type: general
      – SubjectFull: Upflow anaerobic sludge blanket reactors
        Type: general
      – SubjectFull: Total suspended solids
        Type: general
      – SubjectFull: Microalgae
        Type: general
      – SubjectFull: Biogas production
        Type: general
    Titles:
      – TitleFull: A novel bioprocess combining anaerobic co-digestion followed by ultra-filtration and microalgae culture for optimal olive mill wastewater treatment.
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      – PersonEntity:
          Name:
            NameFull: Karray, Raida
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            NameFull: Elloumi, Wièm
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            NameFull: Ben Ali, Rihab
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            NameFull: Loukil, Slim
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            NameFull: Chamkha, Mohamed
      – PersonEntity:
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            NameFull: Karray, Fatma
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            NameFull: Sayadi, Sami
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          Dates:
            – D: 01
              M: 02
              Text: Feb2022
              Type: published
              Y: 2022
          Identifiers:
            – Type: issn-print
              Value: 03014797
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            – Type: volume
              Value: 303
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            – TitleFull: Journal of Environmental Management
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