Transport phenomena and fouling in vacuum enhanced direct contact membrane distillation: Experimental and modelling
Shim, Wang Geun
KAUST DepartmentBiological and Environmental Sciences and Engineering (BESE) Division
Water Desalination and Reuse Research Center (WDRC)
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AbstractThe application of vacuum to direct contact membrane distillation (vacuum enhanced direct contact membrane distillation, V-DCMD) removed condensable gasses and reduced partial pressure in the membrane pores, achieving 37.6% higher flux than DCMD at the same feed temperature. Transfer mechanism and temperature distribution profile in V-DCMD were studied. The empirical flux decline (EFD) model represented fouling profiles of V-DCMD. In a continuous V-DCMD operation with moderate temperature (55 degrees C) and permeate pressure (300 mbar) for treating wastewater ROC, a flux of 16.0 +/- 0.3 L/m(2) h and high quality distillate were achieved with water flushing, showing the suitability of V-DCMD for ROC treatment. (C) 2016 Elsevier B.V. All rights reserved.
CitationNaidu G, Shim WG, Jeong S, Choi Y, Ghaffour N, et al. (2017) Transport phenomena and fouling in vacuum enhanced direct contact membrane distillation: Experimental and modelling. Separation and Purification Technology 172: 285–295. Available: http://dx.doi.org/10.1016/j.seppur.2016.08.024.
SponsorsThis study was funded by the Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE) (Sustainable process for treatment of WWROC to achieve near zero liquid discharge 184.108.40.206/12).