Electrospun Nanostructured Membrane Engineering Using Reverse Osmosis Recycled Modules: Membrane Distillation Application

As a consequence of the increase in reverse osmosis (RO) desalination plants, number discarded RO modules for 2020 was estimated to be 14.8 million annually. Currently, these are disposed nearby landfills generating high volumes waste. In order extend their useful life, this research study, we propose recycling and reusing internal components modules, membranes spacers, membrane engineering distillation (MD) technology. After passive cleaning with sodium hypochlorite aqueous solution, recycled were reused as support polyvinylidene fluoride nanofibrous prepared by electrospinning technique. The characterized different techniques and, finally, tested saline solutions (brines) direct contact (DCMD). effect time, which is same thickness layer, studied optimize permeate flux together salt rejection factor obtain robust stable DCMD performance. When or spacer used supports 60 min good fluxes achieved, 43.2 18.1 kg m−2 h−1, respectively; very factors, greater than 99.99%. These results reasonably competitive compared other supported unsupported MD membranes. contrast, when using feed support, inhomogeneous structures observed on electrospun layer due special characteristics resulting low factors mechanical properties membrane.