A New Activated Sludge Model with Membrane Separation–Implications for Sewage and Textile Effluent
A new model for the activated sludge process with membrane separation is presented, based on the effective filtration size. A new size threshold is imposed by the membrane module. The model structure requires a modified fractionation of the chemical oxygen demand and includes chemical oxygen demand...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-07-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/11/8/589 |
| _version_ | 1797522970746290176 |
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| author | Derin Orhon Ayse Begum Yucel Guclu Insel Seyda Duba Tugba Olmez-Hanci Bulent Solmaz Seval Sözen |
| author_facet | Derin Orhon Ayse Begum Yucel Guclu Insel Seyda Duba Tugba Olmez-Hanci Bulent Solmaz Seval Sözen |
| author_sort | Derin Orhon |
| collection | DOAJ |
| description | A new model for the activated sludge process with membrane separation is presented, based on the effective filtration size. A new size threshold is imposed by the membrane module. The model structure requires a modified fractionation of the chemical oxygen demand and includes chemical oxygen demand fractions entrapped in the reactor or in the flocs as model components. This way, it offers an accurate mechanistic interpretation of microbial mechanisms taking place in membrane activated sludge systems. Denim processing wastewater was selected for model implementation, which emphasized the significance of entrapped fractions of soluble hydrolysable and soluble inert chemical oxygen demand responsible for better effluent quality, while underlining the shortcomings of existing activated sludge models prescribed for systems with conventional gravity settling. The model also introduced particle size distribution analysis as a new experimental instrument complementing respirometric assessments, for an accurate description of chemical oxygen demand fractions with different biodegradation characteristics in related model evaluations. |
| first_indexed | 2024-03-10T08:35:58Z |
| format | Article |
| id | doaj.art-2e8231f44c294ded9f03314117629b6a |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T08:35:58Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-2e8231f44c294ded9f03314117629b6a2023-11-22T08:37:52ZengMDPI AGMembranes2077-03752021-07-0111858910.3390/membranes11080589A New Activated Sludge Model with Membrane Separation–Implications for Sewage and Textile EffluentDerin Orhon0Ayse Begum Yucel1Guclu Insel2Seyda Duba3Tugba Olmez-Hanci4Bulent Solmaz5Seval Sözen6The Science Academy, Istanbul 34349, TurkeyEnvironmental Engineering Department, Faculty of Civil Engineering, Istanbul Technical University, Maslak 34469, Istanbul, TurkeyEnvironmental Engineering Department, Faculty of Civil Engineering, Istanbul Technical University, Maslak 34469, Istanbul, TurkeyEnvironmental Engineering Department, Faculty of Civil Engineering, Istanbul Technical University, Maslak 34469, Istanbul, TurkeyEnvironmental Engineering Department, Faculty of Civil Engineering, Istanbul Technical University, Maslak 34469, Istanbul, TurkeyIstanbul Water and Sewerage Administration, Istanbul 34060, TurkeyEnvironmental Engineering Department, Faculty of Civil Engineering, Istanbul Technical University, Maslak 34469, Istanbul, TurkeyA new model for the activated sludge process with membrane separation is presented, based on the effective filtration size. A new size threshold is imposed by the membrane module. The model structure requires a modified fractionation of the chemical oxygen demand and includes chemical oxygen demand fractions entrapped in the reactor or in the flocs as model components. This way, it offers an accurate mechanistic interpretation of microbial mechanisms taking place in membrane activated sludge systems. Denim processing wastewater was selected for model implementation, which emphasized the significance of entrapped fractions of soluble hydrolysable and soluble inert chemical oxygen demand responsible for better effluent quality, while underlining the shortcomings of existing activated sludge models prescribed for systems with conventional gravity settling. The model also introduced particle size distribution analysis as a new experimental instrument complementing respirometric assessments, for an accurate description of chemical oxygen demand fractions with different biodegradation characteristics in related model evaluations.https://www.mdpi.com/2077-0375/11/8/589MASMnew model for membrane activated sludgeparticle size distributionmodified COD fractionationcaptured COD fractionsdenim processing wastewater |
| spellingShingle | Derin Orhon Ayse Begum Yucel Guclu Insel Seyda Duba Tugba Olmez-Hanci Bulent Solmaz Seval Sözen A New Activated Sludge Model with Membrane Separation–Implications for Sewage and Textile Effluent Membranes MASM new model for membrane activated sludge particle size distribution modified COD fractionation captured COD fractions denim processing wastewater |
| title | A New Activated Sludge Model with Membrane Separation–Implications for Sewage and Textile Effluent |
| title_full | A New Activated Sludge Model with Membrane Separation–Implications for Sewage and Textile Effluent |
| title_fullStr | A New Activated Sludge Model with Membrane Separation–Implications for Sewage and Textile Effluent |
| title_full_unstemmed | A New Activated Sludge Model with Membrane Separation–Implications for Sewage and Textile Effluent |
| title_short | A New Activated Sludge Model with Membrane Separation–Implications for Sewage and Textile Effluent |
| title_sort | new activated sludge model with membrane separation implications for sewage and textile effluent |
| topic | MASM new model for membrane activated sludge particle size distribution modified COD fractionation captured COD fractions denim processing wastewater |
| url | https://www.mdpi.com/2077-0375/11/8/589 |
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