ABSTRACT

There are great progresses in the fabrication of pressure-retarded osmosis (PRO) membranes in the last decade. Thin-film composite (TFC) hollow fibers have been widely studied and demonstrated superior performance. However, the lack of effective TFC hollow fiber modules hinders the commercialization of the PRO technology. Knowledge and experience to fabricate TFC hollow fiber modules remain limited in the open literature. In this chapter, we aim to reveal the engineering and science on how to fabricate TFC hollow fiber modules, including the formation of inner-selective polyamide layers and the repair of leakages. This chapter would make up the gap between TFC membrane fabrication and TFC membrane module fabrication in the membrane industry.