화학공학소재연구정보센터
Journal of Industrial and Engineering Chemistry, Vol.20, No.4, 2174-2183, July, 2014
Experiments and modeling of a vacuum membrane distillation for high saline water
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A modified design vacuum membrane distillation (VMD) system with high saline water was evaluated using different operating conditions (sustainable low feed temperature and flow velocity). At high salinity, a permeate flux of 13.9 to 15.8 L m-2 h-1 was achieved. Increasing the salinity from 1 to 3 M NaCl reduced the permeate flux by 18-20%. An increase in bulk feed temperature (310.2-319.2 K) significantly increased the permeate flux by 64%. The increase in flow velocity (1.1 to 2.2 m s-1) in turn increased the permeate flux by 14-20%. Model fluxes predicted was a good fit to experimental fluxes (R2 ≥ 0.94).
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