Impacts of sludge retention time on membrane fouling in thermophilic MBR

The aim of this study is to investigate the membrane fouling in a thermophilic membrane bioreactor (TMBR) operated different sludge retention times (SRTs). For this purpose, TMBR was operated at four different SRTs (10, 30, 60 and 100 days). Specific cake resistance (?), cake resistance, gel resistance, total resistance, MFI (modified fouling index) and FDR (flux decrease ratio) were calculated for all SRTs. It was observed that flux in the membrane increases with rising SRT although the sludge concentrations in the TMBR increased. The steady state flux was found to be 31.78; 34.70; 39.60 and 43.70 LMH (Liter/m2/h) for the SRTs of 10, 30, 60 and 100 days respectively. The concentrations of extracellular polymeric substance (EPS) and soluble microbial product (SMP) decreased with increasing SRT. The membrane fouling rate was higher at shorter SRT and the highest fouling rate appeared at an SRT of 10 d. Both the sludge cake layer and gel layer had contribution to the fouling resistance, but the gel layer resistance value was dominant in all SRTs. © 2018 Techno-Press, Ltd.

Dergi Adı Membrane Water Treatment
Dergi Cilt Bilgisi 9
Dergi Sayısı 4
Sayfalar 245 - 253
Yayın Yılı 2018
Eser Adı
[dc.title]
Impacts of sludge retention time on membrane fouling in thermophilic MBR
Yazar
[dc.contributor.author]
İnce, Mine
Yazar
[dc.contributor.author]
Topaloğlu, Alikemal
Yayın Yılı
[dc.date.issued]
2018
Yayıncı
[dc.publisher]
Techno Press
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
The aim of this study is to investigate the membrane fouling in a thermophilic membrane bioreactor (TMBR) operated different sludge retention times (SRTs). For this purpose, TMBR was operated at four different SRTs (10, 30, 60 and 100 days). Specific cake resistance (?), cake resistance, gel resistance, total resistance, MFI (modified fouling index) and FDR (flux decrease ratio) were calculated for all SRTs. It was observed that flux in the membrane increases with rising SRT although the sludge concentrations in the TMBR increased. The steady state flux was found to be 31.78; 34.70; 39.60 and 43.70 LMH (Liter/m2/h) for the SRTs of 10, 30, 60 and 100 days respectively. The concentrations of extracellular polymeric substance (EPS) and soluble microbial product (SMP) decreased with increasing SRT. The membrane fouling rate was higher at shorter SRT and the highest fouling rate appeared at an SRT of 10 d. Both the sludge cake layer and gel layer had contribution to the fouling resistance, but the gel layer resistance value was dominant in all SRTs. © 2018 Techno-Press, Ltd.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
EPS
Konu Başlıkları
[dc.subject]
Flux
Konu Başlıkları
[dc.subject]
Fouling
Konu Başlıkları
[dc.subject]
MBR
Konu Başlıkları
[dc.subject]
Resistance
Konu Başlıkları
[dc.subject]
SMP
Konu Başlıkları
[dc.subject]
SRT
Konu Başlıkları
[dc.subject]
Thermophilic
Künye
[dc.identifier.citation]
Ince, M. ve Topaloglu, A. (2018). Impacts of sludge retention time on membrane fouling in thermophilic MBR. Membrane Water Treatment, 9(4), 245-253. doi:10.12989/mwt.2018.9.4.245
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
2005-8624
Sponsor YAYINCI
[dc.description.sponsorship]
110Y134
Sponsor YAYINCI
[dc.description.sponsorship]
This study was financially supported by the Scientific and Technological Research Council of Turkey (TUBITAK) with the project number 110Y134.
İlk Sayfa Sayısı
[dc.identifier.startpage]
245
Son Sayfa Sayısı
[dc.identifier.endpage]
253
Dergi Adı
[dc.relation.journal]
Membrane Water Treatment
Dergi Sayısı
[dc.identifier.issue]
4
Dergi Cilt Bilgisi
[dc.identifier.volume]
9
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.12989/mwt.2018.9.4.245
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/6174
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
64
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
27 Şubat 2024 14:46
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Tıklayınız
resistance fouling membrane sludge concentrations different operated appeared contribution extracellular respectively (Liter/m2/h) polymeric dominant substance higher Techno-Press highest shorter increasing decreased product microbial soluble observed Specific purpose (SRTs) retention (TMBR) bioreactor thermophilic investigate steady increased
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