Study on Membrane Fouling Experiment of Stacked AGMD Module in Low Temperature

Abstract:

In this paper, it has studied membrane fouling experiments at a certain temperature conditions and with untreated tap water as thermal mass, which applied unique multi-layered stacked air-gap membrane distillation module. It has analyzed the original membrane flux and conductivity changes in the experiments, and carried out SEM and EDS analysis before and after acid washed fouling membrane. The results show that: New type membrane module will produce fouling even at lower temperatures. Membrane surface was covered by a lot of uneven accumulation granular pollutants and cuboid crystals, so the mass flux reduced. Fouling membrane washed with 5 % hydrochloric acid solution was removed inorganic scale. The flux recovered to the initial value.

• Periodical: Advanced Materials Research (Volumes 396-398)
• Pages: 458-462
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.396-398.458
• Online since: November 2011
• Authors: Xiao Hong Yang, Rui Tian, Shu Juan Ma, Hai Li Lv
• Keywords: Air-Gap Membrane Distillation, Membrane Cleaning, Membrane Fouling, PTFE Membrane

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