Biomass Characteristics and Their Effect on Membrane Bioreactor Fouling
Biomass characteristics are regarded as particularly influential for fouling in Membrane Bio-Reactors (MBRs). They primarily include the Mixed Liquor Suspended Solids (MLSS), the colloids and the Extracellular Polymeric Substances (EPS). Among them, the soluble part of EPS, which is also known as So...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-08-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/24/16/2867 |
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| author | Petros K. Gkotsis Anastasios I. Zouboulis |
| author_facet | Petros K. Gkotsis Anastasios I. Zouboulis |
| author_sort | Petros K. Gkotsis |
| collection | DOAJ |
| description | Biomass characteristics are regarded as particularly influential for fouling in Membrane Bio-Reactors (MBRs). They primarily include the Mixed Liquor Suspended Solids (MLSS), the colloids and the Extracellular Polymeric Substances (EPS). Among them, the soluble part of EPS, which is also known as Soluble Microbial Products (SMP), is the most significant foulant, i.e., it is principally responsible for membrane fouling and affects all fundamental fouling indices, such as the Trans-Membrane Pressure (TMP) and the membrane resistance and permeability. Recent research in the field of MBRs, tends to consider the carbohydrate fraction of SMP (SMP<sub>c</sub>) the most important characteristic for fouling, mainly due to the hydrophilic and gelling properties, which are exhibited by polysaccharides and allow them to be easily attached on the membrane surface. Other wastewater and biomass characteristics, which affect indirectly membrane fouling, include temperature, viscosity, dissolved oxygen (DO), foaming, hydrophobicity and surface charge. The main methods employed for the characterization and assessment of biomass quality, in terms of filterability and fouling potential, can be divided into direct (such as FDT, SFI, TTF<sub>100</sub>, MFI, DFCM) or indirect (such as CST, TOC, PSA, RH) methods, and they are shortly presented in this review. |
| first_indexed | 2024-12-22T02:46:06Z |
| format | Article |
| id | doaj.art-b8bf90b2aca44ec3b5bdf323e43743b2 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-22T02:46:06Z |
| publishDate | 2019-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-b8bf90b2aca44ec3b5bdf323e43743b22022-12-21T18:41:32ZengMDPI AGMolecules1420-30492019-08-012416286710.3390/molecules24162867molecules24162867Biomass Characteristics and Their Effect on Membrane Bioreactor FoulingPetros K. Gkotsis0Anastasios I. Zouboulis1Laboratory of Chemical and Environmental Technology, Section of Chemical Technology and Industrial Chemistry, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceLaboratory of Chemical and Environmental Technology, Section of Chemical Technology and Industrial Chemistry, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceBiomass characteristics are regarded as particularly influential for fouling in Membrane Bio-Reactors (MBRs). They primarily include the Mixed Liquor Suspended Solids (MLSS), the colloids and the Extracellular Polymeric Substances (EPS). Among them, the soluble part of EPS, which is also known as Soluble Microbial Products (SMP), is the most significant foulant, i.e., it is principally responsible for membrane fouling and affects all fundamental fouling indices, such as the Trans-Membrane Pressure (TMP) and the membrane resistance and permeability. Recent research in the field of MBRs, tends to consider the carbohydrate fraction of SMP (SMP<sub>c</sub>) the most important characteristic for fouling, mainly due to the hydrophilic and gelling properties, which are exhibited by polysaccharides and allow them to be easily attached on the membrane surface. Other wastewater and biomass characteristics, which affect indirectly membrane fouling, include temperature, viscosity, dissolved oxygen (DO), foaming, hydrophobicity and surface charge. The main methods employed for the characterization and assessment of biomass quality, in terms of filterability and fouling potential, can be divided into direct (such as FDT, SFI, TTF<sub>100</sub>, MFI, DFCM) or indirect (such as CST, TOC, PSA, RH) methods, and they are shortly presented in this review.https://www.mdpi.com/1420-3049/24/16/2867membrane bio-rectorsfoulingbiomass characteristicsEPSSMPmixed liquor characterization |
| spellingShingle | Petros K. Gkotsis Anastasios I. Zouboulis Biomass Characteristics and Their Effect on Membrane Bioreactor Fouling Molecules membrane bio-rectors fouling biomass characteristics EPS SMP mixed liquor characterization |
| title | Biomass Characteristics and Their Effect on Membrane Bioreactor Fouling |
| title_full | Biomass Characteristics and Their Effect on Membrane Bioreactor Fouling |
| title_fullStr | Biomass Characteristics and Their Effect on Membrane Bioreactor Fouling |
| title_full_unstemmed | Biomass Characteristics and Their Effect on Membrane Bioreactor Fouling |
| title_short | Biomass Characteristics and Their Effect on Membrane Bioreactor Fouling |
| title_sort | biomass characteristics and their effect on membrane bioreactor fouling |
| topic | membrane bio-rectors fouling biomass characteristics EPS SMP mixed liquor characterization |
| url | https://www.mdpi.com/1420-3049/24/16/2867 |
| work_keys_str_mv | AT petroskgkotsis biomasscharacteristicsandtheireffectonmembranebioreactorfouling AT anastasiosizouboulis biomasscharacteristicsandtheireffectonmembranebioreactorfouling |