Fabric-hydrogel composite membranes for culturing microalgae in semipermeable membrane-based photobioreactors (pages 108–114)
Seung-Yong Lee, Z-Hun Kim, Hwa Yeon Oh, Younghoon Choi, Hanwool Park, Daewoo Jung, Jong-Min Kim, Yang Ho Na, Sang-Min Lim, Choul-Gyun Lee and Jin-Kyun Lee
Article first published online: 28 JUL 2015 | DOI: 10.1002/pola.27770
Fabric-hydrogel composite membranes (FHCMs) are proposed as semipermeable materials for the construction of photobioreactors. A cotton fabric inside the hydrogel matrix endows the composite with tensile strength, which enables casting of FHCMs into thin membranes. In permeability coefficient measurements of NO−3 ions, it reached as high as 1.2 × 10−8 m2 min−1. In microalgal culture, a photobioreactor with a FHCM could maintain sufficient NO−3 ion concentration and pH of the culture broth, supporting microalgal growth.