Enhanced nanofiltration rejection of inorganic and organic compounds from a wastewater-reclamation plant's micro-filtered water using adsorption pre-treatment

Jamil, S; Loganathan, P; Khan, SJ; McDonald, JA; Kandasamy, J; Vigneswaran, S

Enhanced nanofiltration rejection of inorganic and organic compounds from a wastewater-reclamation plant's micro-filtered water using adsorption pre-treatment

Jamil, S Loganathan, P Khan, SJ McDonald, JA Kandasamy, J

Vigneswaran, S

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Separation and Purification Technology, 2021, 260, pp. 118207-118207
Issue Date:: 2021-04-01

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Field	Value	Language
dc.contributor.author	Jamil, S
dc.contributor.author	Loganathan, P
dc.contributor.author	Khan, SJ
dc.contributor.author	McDonald, JA
dc.contributor.author	Kandasamy, J https://orcid.org/0000-0003-0160-3519
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322
dc.date.accessioned	2021-01-28T23:29:10Z
dc.date.available	2021-01-28T23:29:10Z
dc.date.issued	2021-04-01
dc.identifier.citation	Separation and Purification Technology, 2021, 260, pp. 118207-118207
dc.identifier.issn	1383-5866
dc.identifier.issn	1873-3794
dc.identifier.uri	http://hdl.handle.net/10453/145641
dc.description.abstract	© 2020 Elsevier B.V. Adsorption pre-treatment to enhance the nanofiltration (NF) removal of inorganic ions, dissolved organic carbon (DOC) and organic micropollutants (OMP) from microfiltered (MF) wastewater was investigated using NF 90 membrane (contact angle 79% and molecular weight cut off value of 90–200 Da). The NF showed greater rejection for divalent cations (Ca2+, Mg2+) and anions (SO42−) compared to monovalent cations (Na+, K+) and anions (Cl−, NO3−). The degree of total DOC removal was: GAC adsorption + NF (86%) > an ion exchange resin (Purolite) adsorption + NF (81%) > NF operation alone (72%). GAC + NF removed biopolymers and hydrophobic substances almost completely and the highest percentage of LMW neutral substances. In contrast, Purolite + NF almost completely removed humic substances. The degree of membrane fouling order was: LMW neutrals > building blocks > biopolymers > hydrophobics > humics. Adsorption pre-treatment reduced membrane fouling and increased solution flux, the outcome being better with GAC compared to Purolite. Of the 10 MOPs in the MF water, seven were rejected > 90% by NF without any pre-treatment. Conversely, Purolite and GAC pre-treatments rejected > 90% of all OMPs.
dc.language	en
dc.publisher	Elsevier BV
dc.relation	CRC for Contamination Assessment and Remediation of the Environment (CRC CARE)4.1.17-13
dc.relation.ispartof	Separation and Purification Technology
dc.relation.isbasedon	10.1016/j.seppur.2020.118207
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	0301 Analytical Chemistry, 0904 Chemical Engineering
dc.subject.classification	Chemical Engineering
dc.title	Enhanced nanofiltration rejection of inorganic and organic compounds from a wastewater-reclamation plant's micro-filtered water using adsorption pre-treatment
dc.type	Journal Article
utslib.citation.volume	260
utslib.for	0301 Analytical Chemistry
utslib.for	0904 Chemical Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	open_access	*
utslib.copyright.embargo	2023-04-01T00:00:00+1000Z
dc.date.updated	2021-01-28T23:29:06Z
pubs.publication-status	Accepted
pubs.volume	260

Abstract:

© 2020 Elsevier B.V. Adsorption pre-treatment to enhance the nanofiltration (NF) removal of inorganic ions, dissolved organic carbon (DOC) and organic micropollutants (OMP) from microfiltered (MF) wastewater was investigated using NF 90 membrane (contact angle 79% and molecular weight cut off value of 90–200 Da). The NF showed greater rejection for divalent cations (Ca2+, Mg2+) and anions (SO42−) compared to monovalent cations (Na+, K+) and anions (Cl−, NO3−). The degree of total DOC removal was: GAC adsorption + NF (86%) > an ion exchange resin (Purolite) adsorption + NF (81%) > NF operation alone (72%). GAC + NF removed biopolymers and hydrophobic substances almost completely and the highest percentage of LMW neutral substances. In contrast, Purolite + NF almost completely removed humic substances. The degree of membrane fouling order was: LMW neutrals > building blocks > biopolymers > hydrophobics > humics. Adsorption pre-treatment reduced membrane fouling and increased solution flux, the outcome being better with GAC compared to Purolite. Of the 10 MOPs in the MF water, seven were rejected > 90% by NF without any pre-treatment. Conversely, Purolite and GAC pre-treatments rejected > 90% of all OMPs.

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http://hdl.handle.net/10453/145641