Hybrid Forward Osmosis⁻Nanofiltration for Wastewater Reuse: System Design.

ABSTRACT: The design of a hybrid forward osmosis-nanofiltration (FO-NF) system for the extraction of high-quality water from wastewater is presented here. Simulations were performed based on experimental results obtained in a previous study using real wastewater as the feed solution. A sensitivity analysis, conducted to evaluate the influence of different process parameters, showed that an optimum configuration can be designed with (i) an influent draw solution osmotic pressure equal to 15 bar and (ii) a ratio of influent draw solution to feed solution flow rate equal to 1.5:1. With this configuration, the simulations suggested that the overall FO-NF system can achieve up to 85% water recovery using Na2SO4 or MgCl2 as the draw solute. The modular configuration and the size of the NF stage, accommoda

SUBMITTER: Giagnorio M 

PROVIDER: S-EPMC6572449 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature