Analysis of mass transfer behavior in membrane distillation: Mathematical modeling under various conditions

Damtie, MM; Woo, YC; Kim, B; Park, KD; Hailemariam, RH; Shon, HK; Choi, JS

Analysis of mass transfer behavior in membrane distillation: Mathematical modeling under various conditions

Damtie, MM Woo, YC

Kim, B Park, KD Hailemariam, RH Shon, HK

Choi, JS

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Publication Type:: Journal Article
Citation:: Chemosphere, 2019, 236
Issue Date:: 2019-12-01

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Field	Value	Language
dc.contributor.author	Damtie, MM	en_US
dc.contributor.author	Woo, YC https://orcid.org/0000-0003-0847-3067	en_US
dc.contributor.author	Kim, B	en_US
dc.contributor.author	Park, KD	en_US
dc.contributor.author	Hailemariam, RH	en_US
dc.contributor.author	Shon, HK https://orcid.org/0000-0002-3777-7169	en_US
dc.contributor.author	Choi, JS	en_US
dc.date.available	2021-08-12T19:00:28Z
dc.date.issued	2019-12-01	en_US
dc.identifier.citation	Chemosphere, 2019, 236	en_US
dc.identifier.issn	0045-6535	en_US
dc.identifier.uri	http://hdl.handle.net/10453/135258
dc.description.abstract	© 2019 Four commercially available hydrophobic membranes with different pore sizes were separately used in a direct contact membrane distillation (DCMD) apparatus to investigate the effect of fouling on the mass transfer coefficient, and the dominant mass transport mode under different conditions defined by the temperature, membrane material, flow regime, and membrane pore size. Both ultrapure deionized water and simulated industrial wastewater were considered as the feed water. The results of the investigation confirmed that the fouling layer impacted the mass transport directly by resisting it, and indirectly by altering the heat transfer mechanism. In addition to the surface fouling layer, a significant number of particles were also observed to accumulate in the membrane pores. It was further determined that the contribution of Poiseuille flow to the entire mass transport was significant at higher temperatures when using a membrane with large pores. This highlighted the need for careful consideration of Poiseuille flow in the modeling and simulation of a membrane distillation (MD) mass transport process. It was also observed that the flow rate did not affect the Poiseuille flow and therefore did not directly impact the entire mass transfer. The study findings provide systematic insight for the development of a strategy for selecting an appropriate operating feed for DCMD and adjusting the permeate temperature to fit the prevailing water demand and environmental conditions.	en_US
dc.relation.ispartof	Chemosphere	en_US
dc.relation.isbasedon	10.1016/j.chemosphere.2019.07.020	en_US
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Environmental Sciences	en_US
dc.subject.classification	Meteorology & Atmospheric Sciences	en_US
dc.subject.mesh	Distillation	en_US
dc.subject.mesh	Hydrodynamics	en_US
dc.subject.mesh	Hydrophobic and Hydrophilic Interactions	en_US
dc.subject.mesh	Membranes, Artificial	en_US
dc.subject.mesh	Models, Theoretical	en_US
dc.subject.mesh	Temperature	en_US
dc.subject.mesh	Waste Water	en_US
dc.subject.mesh	Water	en_US
dc.subject.mesh	Water Purification	en_US
dc.title	Analysis of mass transfer behavior in membrane distillation: Mathematical modeling under various conditions	en_US
dc.type	Journal Article
utslib.citation.volume	236	en_US
utslib.for	MD Multidisciplinary	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
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/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
pubs.publication-status	Published	en_US
pubs.volume	236	en_US

Abstract:

© 2019 Four commercially available hydrophobic membranes with different pore sizes were separately used in a direct contact membrane distillation (DCMD) apparatus to investigate the effect of fouling on the mass transfer coefficient, and the dominant mass transport mode under different conditions defined by the temperature, membrane material, flow regime, and membrane pore size. Both ultrapure deionized water and simulated industrial wastewater were considered as the feed water. The results of the investigation confirmed that the fouling layer impacted the mass transport directly by resisting it, and indirectly by altering the heat transfer mechanism. In addition to the surface fouling layer, a significant number of particles were also observed to accumulate in the membrane pores. It was further determined that the contribution of Poiseuille flow to the entire mass transport was significant at higher temperatures when using a membrane with large pores. This highlighted the need for careful consideration of Poiseuille flow in the modeling and simulation of a membrane distillation (MD) mass transport process. It was also observed that the flow rate did not affect the Poiseuille flow and therefore did not directly impact the entire mass transfer. The study findings provide systematic insight for the development of a strategy for selecting an appropriate operating feed for DCMD and adjusting the permeate temperature to fit the prevailing water demand and environmental conditions.

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http://hdl.handle.net/10453/135258