... Unit Treatment Processes in Water and Wastewater Engineering, Wiley, Chich-ester, 19 97.Haarhoff, J. and Edzwald, J.K., Dissolved air flotation modelling: insights and short-comings, J. Wat. ... Page 16 1 Monday, July 18 , 2005 1: 34 PM© 2006 by Taylor & Francis Group, LLC 16 6 Particles in Water: Properties and Processes causes an increase in collector efficiency. For particle size in ... 2 10 10 –200 1, 000 1, 000,000 15 –200Nanofiltration 5–40 1 10 10 0–20,000 1 10 0Reverse osmosis(hyperfiltration) 15 15 0 <2 <200 < ;1 TX854_C007.fm Page 17 0 Monday, July 18 , 2005 1: 34 PM© 2006...