Abstract
Forward Osmosis (FO) is expected to the new water treatment in sea water desalination system and salinity gradient energy power generation technique. The performance of the FO module is closely relating to water flow and permeation characteristics. In this paper, the permeation performance of the fresh water is studied for the hollow fiber membranes in relating to the diameter of it. It is pointed out that the permeated flux of the fresh water of the membrane module is proportional to 0.5 power of diameter of the hollow fiber. Therefore, the optimal diameter exists to the maximum flux of the permeation.
