NAGIOS: RODERIC FUNCIONANDO

Fouling characterisation in PVDF membrane contactors for dissolved methane recovery from anaerobic effluents: effect of surface organofluorosilanisation

Repositori DSpace/Manakin

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

Fouling characterisation in PVDF membrane contactors for dissolved methane recovery from anaerobic effluents: effect of surface organofluorosilanisation

Mostra el registre parcial de l'element

dc.contributor.author Jiménez Robles, Ramón
dc.contributor.author Martínez Soria, Vicente
dc.contributor.author Izquierdo Sanchis, Marta
dc.date.accessioned 2023-03-22T12:50:38Z
dc.date.available 2023-03-22T12:50:38Z
dc.date.issued 2022
dc.identifier.citation Jiménez Robles, Ramón Martínez Soria, Vicente Izquierdo Sanchis, Marta 2022 Fouling characterisation in PVDF membrane contactors for dissolved methane recovery from anaerobic effluents: effect of surface organofluorosilanisation Environmental science and pollution research international 30 11 29164 29179
dc.identifier.uri https://hdl.handle.net/10550/85848
dc.description.abstract Characterisation of the fouling attached to PVDF membranes treating an anaerobic effluent for dissolved CH4 recovery was carried out. A commercial flat-sheet PVDF membrane and a PVDF functionalised by grafting of organofluorosilanes (mPVDF) that increased its hydrophobicity were subjected to a continuous flux of an anaerobic reactor effluent in long-term operation tests (> 800 h). The fouling cakes were studied by the membrane autopsy after these tests, combining a staining technique, FTIR, and FESEM-EDX, and the fouling extraction with water and NaOH solutions. Both organic and inorganic fouling were observed, and the main foulants were proteins, polysaccharides, and different calcium and phosphate salts. Also, a significant amount of live cells was detected on the fouling cake (especially on the non-modified PVDF). Although the fouling cake composition was quite heterogeneous, a stratification was observed, with the inorganic fouling mainly in the bulk centre of the cake and the organic fouling mainly located in the lower and upper surfaces of the cake. The mPVDF suffered a more severe fouling, likely owing to a stronger hydrophobic-hydrophobic interaction with the foulants. Irreversible fouling remained on both membranes after the extraction, although a higher irreversible fouling was detected in the mPVDF; however, a complete polysaccharide removal was observed. Regarding the operation performance, PVDF showed a lower stability and suffered a severe degradation, resulting in a lower thickness and perforations. Finally, the decrease in the methane recovery performance of both membranes was associated with the fouling depositions.
dc.language.iso eng
dc.relation.ispartof Environmental science and pollution research international, 2022, vol. 30, num. 11, p. 29164-29179
dc.subject Química
dc.title Fouling characterisation in PVDF membrane contactors for dissolved methane recovery from anaerobic effluents: effect of surface organofluorosilanisation
dc.type journal article es_ES
dc.date.updated 2023-03-22T12:50:39Z
dc.identifier.doi 10.1007/s11356-022-24019-z
dc.identifier.idgrec 157107
dc.rights.accessRights open access es_ES

Visualització       (3.541Mb)

Aquest element apareix en la col·lecció o col·leccions següent(s)

Mostra el registre parcial de l'element

Cerca a RODERIC

Cerca avançada

Visualitza

Estadístiques