Sustainability of construction materials: Electrodialytic technology as a tool for mortars production

C. Magro, J. M. Paz-garcia, L. M. Ottosen, E. P. Mateus, A. B. Ribeiro

Research output: Contribution to journalArticle

Abstract

The reduction of tap water consumption in all activity sectors, including the building industry, is crucial to the sustainability of water resources. Effluents from wastewater treatment plants have the potential to replace freshwater in the construction sector but they contain a critical mixture of impurities, which hampers their use in mortars production. In this work, the viability of using effluent as an alternative to potable water for the production of mortars, after electrodialytic treatment, was assessed. Electrodialytic technology (ED-T) is a proven technique for decontamination of porous and aqueous matrices.

ED-T experiments were conducted with 500 mL of effluent for 6, 12 and 24 h, with a current intensity of 25 mA. The results showed that after ED-T 6 h, the removal efficiencies of critical components were above 85% of their initial concentrations. Mortar properties such as setting time, workability, flexural strength, compressive strength and morphology were obtained for 100% effluent and tap water/effluent mixtures (50:50) with and without ED-T pre-treatment. The mortars with the ED-T treated effluent showed similar initial setting times and workability, higher flexural and compressive strength compared to the mortars reference.
LanguageEnglish
Pages421-427
JournalJournal of Hazardous Materials
Volume363
DOIs
Publication statusPublished - 5 Feb 2019

Fingerprint

mortar
Mortar
Sustainable development
Effluents
sustainability
effluent
Technology
Compressive Strength
compressive strength
Bending strength
Compressive strength
Construction Industry
Water Resources
Decontamination
Waste Water
Fresh Water
Water
Drinking Water
Drinking
Water resources

Keywords

  • Electrodialytic technology
  • Mortars production
  • Secondary water resources
  • Circular economy

Cite this

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title = "Sustainability of construction materials: Electrodialytic technology as a tool for mortars production",
abstract = "The reduction of tap water consumption in all activity sectors, including the building industry, is crucial to the sustainability of water resources. Effluents from wastewater treatment plants have the potential to replace freshwater in the construction sector but they contain a critical mixture of impurities, which hampers their use in mortars production. In this work, the viability of using effluent as an alternative to potable water for the production of mortars, after electrodialytic treatment, was assessed. Electrodialytic technology (ED-T) is a proven technique for decontamination of porous and aqueous matrices.ED-T experiments were conducted with 500 mL of effluent for 6, 12 and 24 h, with a current intensity of 25 mA. The results showed that after ED-T 6 h, the removal efficiencies of critical components were above 85{\%} of their initial concentrations. Mortar properties such as setting time, workability, flexural strength, compressive strength and morphology were obtained for 100{\%} effluent and tap water/effluent mixtures (50:50) with and without ED-T pre-treatment. The mortars with the ED-T treated effluent showed similar initial setting times and workability, higher flexural and compressive strength compared to the mortars reference.",
keywords = "Electrodialytic technology, Mortars production, Secondary water resources, Circular economy",
author = "C. Magro and Paz-garcia, {J. M.} and Ottosen, {L. M.} and Mateus, {E. P.} and Ribeiro, {A. B.}",
note = "C. Magro acknowledges Funda{\cc}{\~a}o para a Ci{\^e}ncia e a Tecnologia for her PhD fellowship (SFRH/BD/114674/2016). Paz–Garcia acknowledges the financial support from the “Plan Propio de Investigaci{\'o}n y Transferencia de la Universidad de M{\'a}laga”, code: PPIT.UMA.B1.2017/20 and PPIT.UMA.B5.2018/17, and the “Ministerio de Educaci{\'o}n, Cultura y Deporte - Subprograma Estatal de movilidad, y Plan Estatal de Investigaci{\'o}n Cient{\'i}fica y T{\'e}cnica y de Investigaci{\'o}n 2013–2016”, code: CAS17/00196. This work has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 778045, and from FCT/MEC through grant UID/AMB/04085/2013.",
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Sustainability of construction materials: Electrodialytic technology as a tool for mortars production. / Magro, C.; Paz-garcia, J. M.; Ottosen, L. M.; Mateus, E. P.; Ribeiro, A. B.

In: Journal of Hazardous Materials, Vol. 363, 05.02.2019, p. 421-427.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Sustainability of construction materials: Electrodialytic technology as a tool for mortars production

AU - Magro, C.

AU - Paz-garcia, J. M.

AU - Ottosen, L. M.

AU - Mateus, E. P.

AU - Ribeiro, A. B.

N1 - C. Magro acknowledges Fundação para a Ciência e a Tecnologia for her PhD fellowship (SFRH/BD/114674/2016). Paz–Garcia acknowledges the financial support from the “Plan Propio de Investigación y Transferencia de la Universidad de Málaga”, code: PPIT.UMA.B1.2017/20 and PPIT.UMA.B5.2018/17, and the “Ministerio de Educación, Cultura y Deporte - Subprograma Estatal de movilidad, y Plan Estatal de Investigación Científica y Técnica y de Investigación 2013–2016”, code: CAS17/00196. This work has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 778045, and from FCT/MEC through grant UID/AMB/04085/2013.

PY - 2019/2/5

Y1 - 2019/2/5

N2 - The reduction of tap water consumption in all activity sectors, including the building industry, is crucial to the sustainability of water resources. Effluents from wastewater treatment plants have the potential to replace freshwater in the construction sector but they contain a critical mixture of impurities, which hampers their use in mortars production. In this work, the viability of using effluent as an alternative to potable water for the production of mortars, after electrodialytic treatment, was assessed. Electrodialytic technology (ED-T) is a proven technique for decontamination of porous and aqueous matrices.ED-T experiments were conducted with 500 mL of effluent for 6, 12 and 24 h, with a current intensity of 25 mA. The results showed that after ED-T 6 h, the removal efficiencies of critical components were above 85% of their initial concentrations. Mortar properties such as setting time, workability, flexural strength, compressive strength and morphology were obtained for 100% effluent and tap water/effluent mixtures (50:50) with and without ED-T pre-treatment. The mortars with the ED-T treated effluent showed similar initial setting times and workability, higher flexural and compressive strength compared to the mortars reference.

AB - The reduction of tap water consumption in all activity sectors, including the building industry, is crucial to the sustainability of water resources. Effluents from wastewater treatment plants have the potential to replace freshwater in the construction sector but they contain a critical mixture of impurities, which hampers their use in mortars production. In this work, the viability of using effluent as an alternative to potable water for the production of mortars, after electrodialytic treatment, was assessed. Electrodialytic technology (ED-T) is a proven technique for decontamination of porous and aqueous matrices.ED-T experiments were conducted with 500 mL of effluent for 6, 12 and 24 h, with a current intensity of 25 mA. The results showed that after ED-T 6 h, the removal efficiencies of critical components were above 85% of their initial concentrations. Mortar properties such as setting time, workability, flexural strength, compressive strength and morphology were obtained for 100% effluent and tap water/effluent mixtures (50:50) with and without ED-T pre-treatment. The mortars with the ED-T treated effluent showed similar initial setting times and workability, higher flexural and compressive strength compared to the mortars reference.

KW - Electrodialytic technology

KW - Mortars production

KW - Secondary water resources

KW - Circular economy

U2 - 10.1016/j.jhazmat.2018.10.010

DO - 10.1016/j.jhazmat.2018.10.010

M3 - Article

VL - 363

SP - 421

EP - 427

JO - Journal of Hazardous Materials

T2 - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

SN - 0304-3894

ER -