Fouling development in direct contact membrane distillation: Non-invasive monitoring and destructive analysis
Embargo End Date:
Microsoft Word 2007
Embargo End Date:
Lee, Jung Gil
KAUST DepartmentBiological and Environmental Sciences and Engineering (BESE) Division
Water Desalination and Reuse Research Center (WDRC)
MetadataShow full item record
AbstractFouling development in direct contact membrane distillation (DCMD) for seawater desalination was evaluated combining in-situ monitoring performed using optical coherence tomography (OCT) together with destructive techniques. The non-invasive monitoring with OCT provided a better understanding of the fouling mechanism by giving an appropriate sampling timing for the membrane autopsy. The on-line monitoring system allowed linking the flux trend with the structure of fouling deposited on the membrane surface. The water vapor flux trend was divided in three phases based on the deposition and formation of different foulants over time. The initial flux decline was due to the deposition of a 50–70 nm porous fouling layer consisting of a mixture of organic compounds and salts. Liquid chromatography with organic carbon detection (LC-OCD) analysis revealed the abundance of biopolymer in the fouling layer formed at the initial phase. In the second phase, formation of carbonate crystals on the membrane surface was observed but did not affect the flux significantly. In the last phase, the water vapor flux dropped to almost zero due to the deposition of a dense thick layer of sulfate crystals on the membrane surface.
CitationFortunato L, Jang Y, Lee J-G, Jeong S, Lee S, et al. (2017) Fouling development in direct contact membrane distillation: Non-invasive monitoring and destructive analysis. Water Research. Available: http://dx.doi.org/10.1016/j.watres.2017.12.059.
SponsorsThe research reported in this paper was supported by King Abdullah University of Science and Technology (KAUST), Saudi Arabia. The authors acknowledge help, assistance and support from the Water Desalination and Reuse Center (WDRC) staff. This research was also supported by a grant (code 17IFIP-B065893-05) from Industrial Facilities & Infrastructure Research Program funded by Ministry of Land, Infrastructure and Transport of Korean government.
- Evaluation of fouling in nanofiltration for desalination using a resistance-in-series model and optical coherence tomography.
- Authors: Park J, Lee S, You J, Park S, Ahn Y, Jung W, Cho KH
- Issue date: 2018 Jun 12
- Analyzing the Evolution of Membrane Fouling via a Novel Method Based on 3D Optical Coherence Tomography Imaging.
- Authors: Li W, Liu X, Wang YN, Chong TH, Tang CY, Fane AG
- Issue date: 2016 Jul 5
- Application of membrane distillation for the treatment of anaerobic membrane bioreactor effluent: An especial attention to the operating conditions.
- Authors: Liu C, Chen L, Zhu L
- Issue date: 2018 Jun 4
- Modeling the Concentration of Volatile and Semivolatile Contaminants in Direct Contact Membrane Distillation (DCMD) Product Water.
- Authors: Winglee JM, Bossa N, Rosen D, Vardner JT, Wiesner MR
- Issue date: 2017 Nov 21
- Wetting phenomena in membrane distillation: Mechanisms, reversal, and prevention.
- Authors: Rezaei M, Warsinger DM, Lienhard V JH, Duke MC, Matsuura T, Samhaber WM
- Issue date: 2018 Aug 1