Nanomechanical characterization of recalcitrant foulants and hollow fibemembranes in ultrafiltration systems

↓ Direkt till sidans innehåll
↓ Direkt till sidans sekundära innehåll (sidomenyn)

Search: id:"swepub:oai:lup.lub.lu.se:7aaef5ba-d787-471c-a8ae-03ebe69ecf86" > Nanomechanical char...

1 of 1
Previous record
Next record
To hitlist

Details
MARC

Gutierrez, LeonardoUniversidad del Pacifico, Ecuador,Curtin University (author)

Nanomechanical characterization of recalcitrant foulants and hollow fibemembranes in ultrafiltration systems

Article/chapterEnglish2018

Publisher, publication year, extent ...

2018
Desalination Publications,2018
16 s.

Numbers

LIBRIS-ID:oai:lup.lub.lu.se:7aaef5ba-d787-471c-a8ae-03ebe69ecf86
https://lup.lub.lu.se/record/7aaef5ba-d787-471c-a8ae-03ebe69ecf86URI
https://doi.org/10.5004/dwt.2018.23257DOI

Supplementary language notes

Language:English
Summary in:English

Part of subdatabase

SwePubSwePub

Classification

Subject category:art swepub-publicationtype
Subject category:ref swepub-contenttype

Notes

Long-term nanomechanical changes of polymeric ultrafiltration (UF) membranes caused by fouling/cleaning agents in water treatment are not well established in the literature. The goal of this study was to investigate the nanomechanical properties of polymeric UF hollow fiber membranes operating at a pilot-scale for 449 d and subjected to a low-quality feed (i.e., high turbidity/TOC content). Quantitative nanomechanical mapping technique was used to measure the deformation, dissipation, modulus, adhesion, and roughness of the polymeric structures of commercial Aquaflex virgin membranes, harvested membranes, and foulant layers. Results indicated that the recalcitrant and heterogeneous nature of the foulants absorbed on harvested membranes showed low elastic properties, and high modulus, adhesion, and roughness. The strong affinity of these foulants towards membrane surface would alter membrane characteristics and influence subsequent fouling behaviour. The cleaning process and extended operation did not significantly affect the nanomechanical properties of membranes. Despite the low-quality feed, the three modules were only subjected to 37 chemi-cal-enhanced backwashes and filtered a total volume of 2.155 m3. These results indicate the importance of operating conditions (i.e., frequency of backwash/cleaning/disinfection steps) and feed quality on the long-term changes of UF membranes and would assist in identifying research directions that are necessary to minimize membrane fouling/ageing.

Subject headings and genre

TEKNIK OCH TEKNOLOGIER Samhällsbyggnadsteknik Vattenteknik hsv//swe
ENGINEERING AND TECHNOLOGY Civil Engineering Water Engineering hsv//eng
Aquantitative nanomechanical mapping
Chemical cleaning
Fouling
Hollow fiber membranes
Ultrafiltration

Added entries (persons, corporate bodies, meetings, titles ...)

Keucken, AlexanderLund University,Lunds universitet,Avdelningen för Teknisk vattenresurslära,Institutionen för bygg- och miljöteknologi,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Water Resources Engineering,Department of Building and Environmental Technology,Departments at LTH,Faculty of Engineering, LTH,Vatten och Miljö i Väst AB (VIVAB)(Swepub:lu)tvrl-alk (author)
Aubry, CyrilMasdar Institute of Science and Technology (author)
San Martin, Teresa VeraUniversidad del Pacifico, Ecuador (author)
Croue, Jean PhilippeCurtin University (author)
Universidad del Pacifico, EcuadorCurtin University (creator_code:org_t)

Related titles

In:Desalination and Water Treatment: Desalination Publications136, s. 49-641944-3994

Internet link

Find in a library

Desalination and Water Treatment (Search for host publication in LIBRIS)

To the university's database

1 of 1
Previous record
Next record
To hitlist

Find more in SwePub

By the author/editor: Gutierrez, Leona ...; Keucken, Alexand ...; Aubry, Cyril; San Martin, Tere ...; Croue, Jean Phil ...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Civil Engineerin ...; and Water Engineerin ...

Articles in the publication: Desalination and ...

By the university: Lund University

Search outside SwePub

Extend your search to:: Google; Google Book Search; Google Scholar

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

LIBRIS.kb.se