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Impact of different inoculum sources on the performance of membrane bioreactors for municipal wastewater treatment: Dynamic membrane versus ultrafiltration membrane
In this study, impact of different inoculum on the performance of membrane bioreactors (MBRs) was investigated for municipal wastewater treatment. Waste sludges from a conventional activated sludge (CAS) system and a high-rate activated sludge (HRAS) system were used as inoculums at Stage-1 and Stag...
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| Published in: | Journal of water process engineering 2022-04, Vol.46, p.102549, Article 102549 |
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| Main Authors: | , , , , , , , , |
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| container_start_page | 102549 |
| container_title | Journal of water process engineering |
| container_volume | 46 |
| creator | Isik, Onur Cengiz, Ali Izzet Abdelrahman, Amr Mustafa Ozcelik, Kadir Yuksekdag, Ayse Koyuncu, Ismail Ersahin, Mustafa Evren Ozgun, Hale Demir, Ibrahim |
| description | In this study, impact of different inoculum on the performance of membrane bioreactors (MBRs) was investigated for municipal wastewater treatment. Waste sludges from a conventional activated sludge (CAS) system and a high-rate activated sludge (HRAS) system were used as inoculums at Stage-1 and Stage-2, respectively. A commercial ultrafiltration (UF) membrane was tested in parallel with a low-cost polyester hollow fiber support material (dynamic membrane, DM). UF and DM membranes were operated for 67 days at a flux of 8 L/m2·h at each stage. High chemical oxygen demand (COD) and soluble COD (sCOD) removal efficiencies (>86% and >74%, respectively), low mixed liquor suspended solids (MLSS) concentration ( |
| doi_str_mv | 10.1016/j.jwpe.2021.102549 |
| format | article |
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[Display omitted]
•Hollow fiber dynamic membrane (DM) and a commercial ultrafiltration membrane (UF) were compared.•Similar treatment performances were obtained for both membranes at each stage.•Lower TMP values were observed for DM, inoculating with excess sludge from HRAS system.</description><identifier>ISSN: 2214-7144</identifier><identifier>EISSN: 2214-7144</identifier><identifier>DOI: 10.1016/j.jwpe.2021.102549</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Dynamic membrane ; Hollow fiber ; Inoculum sludge ; Membrane bioreactor ; Municipal wastewater</subject><ispartof>Journal of water process engineering, 2022-04, Vol.46, p.102549, Article 102549</ispartof><rights>2022 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c300t-98abafd09bb6da686682b908c7a60a86a831074a2032d1cfaf2e577b21dd1a613</citedby><cites>FETCH-LOGICAL-c300t-98abafd09bb6da686682b908c7a60a86a831074a2032d1cfaf2e577b21dd1a613</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Isik, Onur</creatorcontrib><creatorcontrib>Cengiz, Ali Izzet</creatorcontrib><creatorcontrib>Abdelrahman, Amr Mustafa</creatorcontrib><creatorcontrib>Ozcelik, Kadir</creatorcontrib><creatorcontrib>Yuksekdag, Ayse</creatorcontrib><creatorcontrib>Koyuncu, Ismail</creatorcontrib><creatorcontrib>Ersahin, Mustafa Evren</creatorcontrib><creatorcontrib>Ozgun, Hale</creatorcontrib><creatorcontrib>Demir, Ibrahim</creatorcontrib><title>Impact of different inoculum sources on the performance of membrane bioreactors for municipal wastewater treatment: Dynamic membrane versus ultrafiltration membrane</title><title>Journal of water process engineering</title><description>In this study, impact of different inoculum on the performance of membrane bioreactors (MBRs) was investigated for municipal wastewater treatment. Waste sludges from a conventional activated sludge (CAS) system and a high-rate activated sludge (HRAS) system were used as inoculums at Stage-1 and Stage-2, respectively. A commercial ultrafiltration (UF) membrane was tested in parallel with a low-cost polyester hollow fiber support material (dynamic membrane, DM). UF and DM membranes were operated for 67 days at a flux of 8 L/m2·h at each stage. High chemical oxygen demand (COD) and soluble COD (sCOD) removal efficiencies (>86% and >74%, respectively), low mixed liquor suspended solids (MLSS) concentration (<10 mg/L), and low turbidity values were achieved in permeates at each stage. Extracellular polymeric substances (EPS) content was higher at Stage-1, which caused an increase in sludge resistance to filtration (SRF) and sludge volume index (SVI). Based on morphological analysis, compact dynamic cake layer was formed on the support material at Stage-1, while porous dynamic layer was formed at Stage-2. Thus, DM was operated at lower TMP at Stage-2. Based on the results obtained from the study, sludge from HRAS system showed better performance as inoculum compared to the sludge from CAS system for DM applications.
[Display omitted]
•Hollow fiber dynamic membrane (DM) and a commercial ultrafiltration membrane (UF) were compared.•Similar treatment performances were obtained for both membranes at each stage.•Lower TMP values were observed for DM, inoculating with excess sludge from HRAS system.</description><subject>Dynamic membrane</subject><subject>Hollow fiber</subject><subject>Inoculum sludge</subject><subject>Membrane bioreactor</subject><subject>Municipal wastewater</subject><issn>2214-7144</issn><issn>2214-7144</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9kM1OwzAMxysEEtPYC3DKC3QkWdcPxAWNr0mTuMA5clNHpGqaKkk37X14UFINBCcutmX7_7f1S5JrRpeMsvymXbaHAZecchYbfJ1VZ8mMc5alBcuy8z_1ZbLwvqWU8mpN12U5Sz63ZgAZiFWk0Uqhwz4Q3Vs5dqMh3o5Ooie2J-EDyYBOWWeglzgJDJraQY-k1tZhdLHOk7hAzNhrqQfoyAF8wAMEdCTElWCi_S15OPZgtPw12KPzoydjFxwoPcWg482f-VVyoaDzuPjO8-T96fFt85LuXp-3m_tdKleUhrQqoQbV0Kqu8wbyMs9LXle0lAXkFMocyhWjRQacrnjDpALFcV0UNWdNwyBnq3nCT77SWe8dKjE4bcAdBaNiQi1aMaEWE2pxQh1FdycRxs_2Gp3wUmNE1GiHMojG6v_kX668jS8</recordid><startdate>202204</startdate><enddate>202204</enddate><creator>Isik, Onur</creator><creator>Cengiz, Ali Izzet</creator><creator>Abdelrahman, Amr Mustafa</creator><creator>Ozcelik, Kadir</creator><creator>Yuksekdag, Ayse</creator><creator>Koyuncu, Ismail</creator><creator>Ersahin, Mustafa Evren</creator><creator>Ozgun, Hale</creator><creator>Demir, Ibrahim</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>202204</creationdate><title>Impact of different inoculum sources on the performance of membrane bioreactors for municipal wastewater treatment: Dynamic membrane versus ultrafiltration membrane</title><author>Isik, Onur ; Cengiz, Ali Izzet ; Abdelrahman, Amr Mustafa ; Ozcelik, Kadir ; Yuksekdag, Ayse ; Koyuncu, Ismail ; Ersahin, Mustafa Evren ; Ozgun, Hale ; Demir, Ibrahim</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c300t-98abafd09bb6da686682b908c7a60a86a831074a2032d1cfaf2e577b21dd1a613</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Dynamic membrane</topic><topic>Hollow fiber</topic><topic>Inoculum sludge</topic><topic>Membrane bioreactor</topic><topic>Municipal wastewater</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Isik, Onur</creatorcontrib><creatorcontrib>Cengiz, Ali Izzet</creatorcontrib><creatorcontrib>Abdelrahman, Amr Mustafa</creatorcontrib><creatorcontrib>Ozcelik, Kadir</creatorcontrib><creatorcontrib>Yuksekdag, Ayse</creatorcontrib><creatorcontrib>Koyuncu, Ismail</creatorcontrib><creatorcontrib>Ersahin, Mustafa Evren</creatorcontrib><creatorcontrib>Ozgun, Hale</creatorcontrib><creatorcontrib>Demir, Ibrahim</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of water process engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Isik, Onur</au><au>Cengiz, Ali Izzet</au><au>Abdelrahman, Amr Mustafa</au><au>Ozcelik, Kadir</au><au>Yuksekdag, Ayse</au><au>Koyuncu, Ismail</au><au>Ersahin, Mustafa Evren</au><au>Ozgun, Hale</au><au>Demir, Ibrahim</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Impact of different inoculum sources on the performance of membrane bioreactors for municipal wastewater treatment: Dynamic membrane versus ultrafiltration membrane</atitle><jtitle>Journal of water process engineering</jtitle><date>2022-04</date><risdate>2022</risdate><volume>46</volume><spage>102549</spage><pages>102549-</pages><artnum>102549</artnum><issn>2214-7144</issn><eissn>2214-7144</eissn><abstract>In this study, impact of different inoculum on the performance of membrane bioreactors (MBRs) was investigated for municipal wastewater treatment. Waste sludges from a conventional activated sludge (CAS) system and a high-rate activated sludge (HRAS) system were used as inoculums at Stage-1 and Stage-2, respectively. A commercial ultrafiltration (UF) membrane was tested in parallel with a low-cost polyester hollow fiber support material (dynamic membrane, DM). UF and DM membranes were operated for 67 days at a flux of 8 L/m2·h at each stage. High chemical oxygen demand (COD) and soluble COD (sCOD) removal efficiencies (>86% and >74%, respectively), low mixed liquor suspended solids (MLSS) concentration (<10 mg/L), and low turbidity values were achieved in permeates at each stage. Extracellular polymeric substances (EPS) content was higher at Stage-1, which caused an increase in sludge resistance to filtration (SRF) and sludge volume index (SVI). Based on morphological analysis, compact dynamic cake layer was formed on the support material at Stage-1, while porous dynamic layer was formed at Stage-2. Thus, DM was operated at lower TMP at Stage-2. Based on the results obtained from the study, sludge from HRAS system showed better performance as inoculum compared to the sludge from CAS system for DM applications.
[Display omitted]
•Hollow fiber dynamic membrane (DM) and a commercial ultrafiltration membrane (UF) were compared.•Similar treatment performances were obtained for both membranes at each stage.•Lower TMP values were observed for DM, inoculating with excess sludge from HRAS system.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.jwpe.2021.102549</doi></addata></record> |
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| ispartof | Journal of water process engineering, 2022-04, Vol.46, p.102549, Article 102549 |
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| source | ScienceDirect Journals |
| subjects | Dynamic membrane Hollow fiber Inoculum sludge Membrane bioreactor Municipal wastewater |
| title | Impact of different inoculum sources on the performance of membrane bioreactors for municipal wastewater treatment: Dynamic membrane versus ultrafiltration membrane |
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