Membrane Distillation: Pre-Treatment Effects on Fouling Dynamics

In the research reported in this paper, membrane distillation was employed to recover water from a concentrated saline petrochemical effluent. According to the results, the use of membrane distillation is technically feasible when pre-treatments are employed to mitigate fouling. A mathematical model...

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Main Authors: Paula G. Santos, Cíntia M. Scherer, Adriano G. Fisch, Marco Antônio S. Rodrigues
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Membranes
Subjects:
Online Access:https://www.mdpi.com/2077-0375/11/12/958
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author Paula G. Santos
Cíntia M. Scherer
Adriano G. Fisch
Marco Antônio S. Rodrigues
author_facet Paula G. Santos
Cíntia M. Scherer
Adriano G. Fisch
Marco Antônio S. Rodrigues
author_sort Paula G. Santos
collection DOAJ
description In the research reported in this paper, membrane distillation was employed to recover water from a concentrated saline petrochemical effluent. According to the results, the use of membrane distillation is technically feasible when pre-treatments are employed to mitigate fouling. A mathematical model was used to evaluate the fouling mechanism, showing that the deposition of particulate and precipitated material occurred in all tests; however, the fouling dynamic depends on the pre-treatment employed (filtration, or filtration associated with a pH adjustment). The deposit layer formed by particles is not cohesive, allowing its entrainment to the bulk flow. The precipitate fouling showed a minimal tendency to entrainment. Also, precipitate fouling served as a coupling agent among adjacent particles, increasing the fouling layer cohesion.
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spelling doaj.art-c02cb4ab3d2946d28a9db499997ef5312023-11-23T09:30:27ZengMDPI AGMembranes2077-03752021-12-01111295810.3390/membranes11120958Membrane Distillation: Pre-Treatment Effects on Fouling DynamicsPaula G. Santos0Cíntia M. Scherer1Adriano G. Fisch2Marco Antônio S. Rodrigues3Graduation Program in Environmental Quality, Universidade Feevale, Novo Hamburgo 93525-075, BrazilChemical Engineering Department, Universidade Feevale, Novo Hamburgo 93525-075, BrazilChemical and Materials Engineering Department, University of Alberta, Edmonton, AB T6G 2R3, CanadaGraduation Program in Technology of Materials and Industrial Processes, Universidade Feevale, Novo Hamburgo 93525-075, BrazilIn the research reported in this paper, membrane distillation was employed to recover water from a concentrated saline petrochemical effluent. According to the results, the use of membrane distillation is technically feasible when pre-treatments are employed to mitigate fouling. A mathematical model was used to evaluate the fouling mechanism, showing that the deposition of particulate and precipitated material occurred in all tests; however, the fouling dynamic depends on the pre-treatment employed (filtration, or filtration associated with a pH adjustment). The deposit layer formed by particles is not cohesive, allowing its entrainment to the bulk flow. The precipitate fouling showed a minimal tendency to entrainment. Also, precipitate fouling served as a coupling agent among adjacent particles, increasing the fouling layer cohesion.https://www.mdpi.com/2077-0375/11/12/958membrane distillationfoulingpetrochemical effluentpre-treatmentwater recovery
spellingShingle Paula G. Santos
Cíntia M. Scherer
Adriano G. Fisch
Marco Antônio S. Rodrigues
Membrane Distillation: Pre-Treatment Effects on Fouling Dynamics
Membranes
membrane distillation
fouling
petrochemical effluent
pre-treatment
water recovery
title Membrane Distillation: Pre-Treatment Effects on Fouling Dynamics
title_full Membrane Distillation: Pre-Treatment Effects on Fouling Dynamics
title_fullStr Membrane Distillation: Pre-Treatment Effects on Fouling Dynamics
title_full_unstemmed Membrane Distillation: Pre-Treatment Effects on Fouling Dynamics
title_short Membrane Distillation: Pre-Treatment Effects on Fouling Dynamics
title_sort membrane distillation pre treatment effects on fouling dynamics
topic membrane distillation
fouling
petrochemical effluent
pre-treatment
water recovery
url https://www.mdpi.com/2077-0375/11/12/958
work_keys_str_mv AT paulagsantos membranedistillationpretreatmenteffectsonfoulingdynamics
AT cintiamscherer membranedistillationpretreatmenteffectsonfoulingdynamics
AT adrianogfisch membranedistillationpretreatmenteffectsonfoulingdynamics
AT marcoantoniosrodrigues membranedistillationpretreatmenteffectsonfoulingdynamics