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2957889 
Journal Article 
Direct contact membrane distillation for anaerobic effluent treatment 
Jacob, P; Phungsai, P; Fukushi, K; Visvanathan, C 
2015 
Yes 
Journal of Membrane Science
ISSN: 0376-7388 
475 
330-339 
WOS:000345982100034 
This study was conducted using direct contact membrane distillation configuration for treating effluent from a thermophilic anaerobic membrane bioreactor. The effluent was taken as teed to better understand the effect of treating anaerobic wastewater (with and without biomass) on the flux and fouling interaction on membrane distillation in batch mode. While treating the effluent without biomass, permeate fluxes varied from 141 to 922 L/m(2) h at a temperature of (40-70 degrees C) and cross flow velocities of 0.005, 0.008, 0.01, 0.012 and 0.014 m/s. The COD and ammonia rejection at the stage was greater than 90%. In conditions where biomass was introduced in the feed at 6 and 12 g/L MLVSS, it was observed that permeate flux decreased from 2 to 0.6 L/m(2) h after 72 h operation at 12 g/L MLVSS wastewater, thus maximum observable fouling was also at 12 g/L. Fouling investigation concluded that the major foulant on the MD membrane surface was removable fouling, accounting for 71-77.5% of the total fouling at a loading rate of 6 and 12 g/L MLVSS, respectively. After cleaning, the membrane could recover 96% of the initial flux. (C) 2014 Elsevier B.V. All rights reserved. 
Anaerobic; Membrane distillation bioreactor; Thermophilic; High strength wastewater; Direct contact membrane distillation