Automated Liquid–Liquid Displacement Porometry (LLDP) for the Non-Destructive Characterization of Ultrapure Water Purification Filtration Devices
This scientific publication presents a novel modification of the liquid–liquid displacement porosimetry (LLDP) method, aiming for the non-destructive automated analysis of water purification membrane filtration devices in the microfiltration (MF) and ultrafiltration (UF) range. The technical adaptat...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-07-01
|
| Series: | Membranes |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-0375/13/7/660 |
| _version_ | 1797588384363839488 |
|---|---|
| author | René I. Peinador Daniel Darbouret Christophe Paragot José I. Calvo |
| author_facet | René I. Peinador Daniel Darbouret Christophe Paragot José I. Calvo |
| author_sort | René I. Peinador |
| collection | DOAJ |
| description | This scientific publication presents a novel modification of the liquid–liquid displacement porosimetry (LLDP) method, aiming for the non-destructive automated analysis of water purification membrane filtration devices in the microfiltration (MF) and ultrafiltration (UF) range. The technical adaptation of LLDP enables the direct in-line porosimetric analysis of commercial filtration devices, avoiding the filtration devices’ destruction. Six commercially available filtration devices with polyethersulfone (PES) and polysulfone (PS) membranes were studied using an improved device developed by the IFTS, which was based on a commercial LLDP instrument. The filtration devices were evaluated in three different configurations: flat disks, hollow fibers, and pleated membranes. The results obtained using the proposed method were compared with other characterization techniques, including submicronic efficiency retention, image analysis of scanning electron microscopy (SEM), and gas–liquid displacement porosimetry (GLDP). The comparison of the results demonstrated that the proposed method accurately determined the porosimetric characteristics of the filters. It proved to be a precise technique for the non-destructive in-line evaluation of filter performance, as well as for periodic quality control and the fouling degree assessment of commercial filtration devices. This modified LLDP approach offers significant potential for the advanced characterization and quality assessment of water purification membrane filtration devices, contributing to improved understanding and optimization of their performance. |
| first_indexed | 2024-03-11T00:51:12Z |
| format | Article |
| id | doaj.art-cfd038a62628403b9ae5d9a44706f283 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-11T00:51:12Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-cfd038a62628403b9ae5d9a44706f2832023-11-18T20:26:31ZengMDPI AGMembranes2077-03752023-07-0113766010.3390/membranes13070660Automated Liquid–Liquid Displacement Porometry (LLDP) for the Non-Destructive Characterization of Ultrapure Water Purification Filtration DevicesRené I. Peinador0Daniel Darbouret1Christophe Paragot2José I. Calvo3Institut de la Filtration et des Techniques Séparatives (IFTS), Rue Marcel Pagnol, 47510 Foulayronnes, FranceMillipore S.A.S., (affiliate of Merck KGaA, Darmstadt, Germany), 78280 Guyancourt, FranceMillipore S.A.S., (affiliate of Merck KGaA, Darmstadt, Germany), 78280 Guyancourt, FranceDepartamento de Física Aplicada, ETSIIAA, Universidad de Valladolid, 34071 Palencia, SpainThis scientific publication presents a novel modification of the liquid–liquid displacement porosimetry (LLDP) method, aiming for the non-destructive automated analysis of water purification membrane filtration devices in the microfiltration (MF) and ultrafiltration (UF) range. The technical adaptation of LLDP enables the direct in-line porosimetric analysis of commercial filtration devices, avoiding the filtration devices’ destruction. Six commercially available filtration devices with polyethersulfone (PES) and polysulfone (PS) membranes were studied using an improved device developed by the IFTS, which was based on a commercial LLDP instrument. The filtration devices were evaluated in three different configurations: flat disks, hollow fibers, and pleated membranes. The results obtained using the proposed method were compared with other characterization techniques, including submicronic efficiency retention, image analysis of scanning electron microscopy (SEM), and gas–liquid displacement porosimetry (GLDP). The comparison of the results demonstrated that the proposed method accurately determined the porosimetric characteristics of the filters. It proved to be a precise technique for the non-destructive in-line evaluation of filter performance, as well as for periodic quality control and the fouling degree assessment of commercial filtration devices. This modified LLDP approach offers significant potential for the advanced characterization and quality assessment of water purification membrane filtration devices, contributing to improved understanding and optimization of their performance.https://www.mdpi.com/2077-0375/13/7/660membrane characterizationpore size distribution (PSD)filtration devicesliquid–liquid displacement porometry (LLDP)submicronic efficiency |
| spellingShingle | René I. Peinador Daniel Darbouret Christophe Paragot José I. Calvo Automated Liquid–Liquid Displacement Porometry (LLDP) for the Non-Destructive Characterization of Ultrapure Water Purification Filtration Devices Membranes membrane characterization pore size distribution (PSD) filtration devices liquid–liquid displacement porometry (LLDP) submicronic efficiency |
| title | Automated Liquid–Liquid Displacement Porometry (LLDP) for the Non-Destructive Characterization of Ultrapure Water Purification Filtration Devices |
| title_full | Automated Liquid–Liquid Displacement Porometry (LLDP) for the Non-Destructive Characterization of Ultrapure Water Purification Filtration Devices |
| title_fullStr | Automated Liquid–Liquid Displacement Porometry (LLDP) for the Non-Destructive Characterization of Ultrapure Water Purification Filtration Devices |
| title_full_unstemmed | Automated Liquid–Liquid Displacement Porometry (LLDP) for the Non-Destructive Characterization of Ultrapure Water Purification Filtration Devices |
| title_short | Automated Liquid–Liquid Displacement Porometry (LLDP) for the Non-Destructive Characterization of Ultrapure Water Purification Filtration Devices |
| title_sort | automated liquid liquid displacement porometry lldp for the non destructive characterization of ultrapure water purification filtration devices |
| topic | membrane characterization pore size distribution (PSD) filtration devices liquid–liquid displacement porometry (LLDP) submicronic efficiency |
| url | https://www.mdpi.com/2077-0375/13/7/660 |
| work_keys_str_mv | AT reneipeinador automatedliquidliquiddisplacementporometrylldpforthenondestructivecharacterizationofultrapurewaterpurificationfiltrationdevices AT danieldarbouret automatedliquidliquiddisplacementporometrylldpforthenondestructivecharacterizationofultrapurewaterpurificationfiltrationdevices AT christopheparagot automatedliquidliquiddisplacementporometrylldpforthenondestructivecharacterizationofultrapurewaterpurificationfiltrationdevices AT joseicalvo automatedliquidliquiddisplacementporometrylldpforthenondestructivecharacterizationofultrapurewaterpurificationfiltrationdevices |