Impacts of Natural Organic Matter Adhesion on Irreversible Membrane Fouling during Surface Water Treatment Using Ultrafiltration
To understand impacts of organic adhesion on membrane fouling, ultrafiltration (UF) membrane fouling by dissolved natural organic matter (NOM) was investigated in the presence of background cations (Na<sup>+</sup> and Ca<sup>2+</sup>) at typical concentrations in surface wate...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/10/9/238 |
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| author | Fangshu Qu Zhimeng Yang Shanshan Gao Huarong Yu Junguo He Hongwei Rong Jiayu Tian |
| author_facet | Fangshu Qu Zhimeng Yang Shanshan Gao Huarong Yu Junguo He Hongwei Rong Jiayu Tian |
| author_sort | Fangshu Qu |
| collection | DOAJ |
| description | To understand impacts of organic adhesion on membrane fouling, ultrafiltration (UF) membrane fouling by dissolved natural organic matter (NOM) was investigated in the presence of background cations (Na<sup>+</sup> and Ca<sup>2+</sup>) at typical concentrations in surface water. Moreover, NOM adhesion on the UF membrane was investigated using atomic force microscopy (AFM) with colloidal probes and a quartz crystal microbalance with dissipation monitoring (QCM-D). The results indicated that the adhesion forces at the NOM-membrane interface increased in the presence of background cations, particularly Ca<sup>2+</sup>, and that the amount of adhered NOM increased due to reduced electrostatic repulsion. However, the membrane permeability was almost not affected by background cations in the pore blocking-dominated phase but was aggravated to some extent in the cake filtration-governed phase. More importantly, the irreversible NOM fouling was not correlated with the amount of adhered NOM. The assumption for membrane autopsies is doubtful that retained or adsorbed organic materials are necessarily a primary cause of membrane fouling, particularly the irreversible fouling. |
| first_indexed | 2024-03-10T16:16:14Z |
| format | Article |
| id | doaj.art-1e9637febcc741d189a47a281e8abd51 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T16:16:14Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-1e9637febcc741d189a47a281e8abd512023-11-20T14:01:16ZengMDPI AGMembranes2077-03752020-09-0110923810.3390/membranes10090238Impacts of Natural Organic Matter Adhesion on Irreversible Membrane Fouling during Surface Water Treatment Using UltrafiltrationFangshu Qu0Zhimeng Yang1Shanshan Gao2Huarong Yu3Junguo He4Hongwei Rong5Jiayu Tian6School of Civil Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Civil Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Civil Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Civil Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Civil Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, ChinaTo understand impacts of organic adhesion on membrane fouling, ultrafiltration (UF) membrane fouling by dissolved natural organic matter (NOM) was investigated in the presence of background cations (Na<sup>+</sup> and Ca<sup>2+</sup>) at typical concentrations in surface water. Moreover, NOM adhesion on the UF membrane was investigated using atomic force microscopy (AFM) with colloidal probes and a quartz crystal microbalance with dissipation monitoring (QCM-D). The results indicated that the adhesion forces at the NOM-membrane interface increased in the presence of background cations, particularly Ca<sup>2+</sup>, and that the amount of adhered NOM increased due to reduced electrostatic repulsion. However, the membrane permeability was almost not affected by background cations in the pore blocking-dominated phase but was aggravated to some extent in the cake filtration-governed phase. More importantly, the irreversible NOM fouling was not correlated with the amount of adhered NOM. The assumption for membrane autopsies is doubtful that retained or adsorbed organic materials are necessarily a primary cause of membrane fouling, particularly the irreversible fouling.https://www.mdpi.com/2077-0375/10/9/238ultrafiltrationmembrane foulingnatural organic matteradhesionbackground ions |
| spellingShingle | Fangshu Qu Zhimeng Yang Shanshan Gao Huarong Yu Junguo He Hongwei Rong Jiayu Tian Impacts of Natural Organic Matter Adhesion on Irreversible Membrane Fouling during Surface Water Treatment Using Ultrafiltration Membranes ultrafiltration membrane fouling natural organic matter adhesion background ions |
| title | Impacts of Natural Organic Matter Adhesion on Irreversible Membrane Fouling during Surface Water Treatment Using Ultrafiltration |
| title_full | Impacts of Natural Organic Matter Adhesion on Irreversible Membrane Fouling during Surface Water Treatment Using Ultrafiltration |
| title_fullStr | Impacts of Natural Organic Matter Adhesion on Irreversible Membrane Fouling during Surface Water Treatment Using Ultrafiltration |
| title_full_unstemmed | Impacts of Natural Organic Matter Adhesion on Irreversible Membrane Fouling during Surface Water Treatment Using Ultrafiltration |
| title_short | Impacts of Natural Organic Matter Adhesion on Irreversible Membrane Fouling during Surface Water Treatment Using Ultrafiltration |
| title_sort | impacts of natural organic matter adhesion on irreversible membrane fouling during surface water treatment using ultrafiltration |
| topic | ultrafiltration membrane fouling natural organic matter adhesion background ions |
| url | https://www.mdpi.com/2077-0375/10/9/238 |
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