Membrane J (L/m2 h) at 8 bar R R Fouling oligcmccharides (%) monosaccharides (%) (% MVP) Nanomax 95°   xr.100 xr.100   AFC30 6.1 99.7 80 33 DL2540 8 99.4 76 20 Kerasep 40 93 5 40 Nano         Membralox T1-70 1000n 34 78 7 60 ESPO4 21 93 10 65 Mcmbralox 47 70 4 63 TI -70 500 (rPU608) 15.7 84 5 75 Fouling was measured by percent reduction in pure water flux.   a Data at 6 bar.         b Data at 20 bar.

Table 1: Comparison of membrane performance (flux, fouling and rejection) during the processing of the raw autohydrolysis liquor. The tests were performed at 8 bar. Fouling results are reported as pure water flux drop (PWF), [1].