Use the representation for the single particle collector efficiency () as a function of particle size presented in class (and attached) to determine filter performance for particles (p = 1050 kg/m3 ) with diameter 1 and 0.1 micron in a 1 m deep sand filter (ES = 0.5 mm; = 0.35; vf = 10 m/hr) at 15 C. Which filtration mechanism dominates for these two particle sizes? How does the filtration mechanism differ for a 10 micron particle?

Particle Diameter (m) Particle Diameter (m)