Feed concentration/TMP 1 bar(g) 1.5 bar(g) 2.0 bar(g) 2.5 bar(g) 3.0 bar(g) 3.5 bar(g)
1000 ppm oily water feed 35.9 32.8 35.7 27.8 95.3 146.1
500 ppm oily water feed < 10 < 10 < 10 < 10 35.1 72.0
Table 3: Permeate quality (in ppm) from the microfiltration experiment using a ceramic membrane of 0.5 μm pore size and oil-water feed of various concentration at different test pressure.