Additional file 1: of Bioelectrochemical production of hydrogen in an innovative pressure-retarded osmosis/microbial electrolysis cell system: experiments and modeling YuanHeyang LuYaobin Abu-ReeshIbrahim HeZhen 2015 Experimental data and simulation results of draw (increase over time), feed volume (decrease over time) and water flux at (A) 1 bar, (B) 2 bar and (C) 3 bar.