The switchable polarity solvent forward osmosis (SPS FO) desalination process requires use of a polishing filtration step to remove trace quantities of draw solution from the product water stream. Selected nanofiltration (NF) and reverse osmosis (RO) membranes were tested for their ability to recover water from 1-cyclohexylpiperidenium bicarbonate solutions in this application. This submission includes the experimental data used to calculate NF and RO membrane flux-normalized net driving pressure (FNNDP) and flux-normalized rejection (FNR) performance in recovering water from 1-cyclohexylpiperidenium bicarbonate solutions. This data is further described and visualized in the manuscript entitled "Compatibility study of nanofiltration and reverse osmosis membranes with 1 cyclohexylpiperidenium bicarbonate solutions" (see attached Compatibility Study Manuscript).

This living document will illustrate Standard Operating Procedures (SOPs) for sampling biofilm material from reverse osmosis (RO) membrane modules. The SOPs will empower the NAWI research community to apply omics tools (e.g., time-series metagenomic, meta-transcriptomic, metaproteomic and metabolomic workflows) to fundamentally understand biofilm formation with unprecedented resolution (e.g., the transition from innocuous to detrimental biofilm) and mitigate biofouling in water treatment and distribution systems.