… water types and integration of DAF into a water plant; and Section 7 on the state of the
technology. In some sections I begin with some brief personal comments or reflections, and then I …

… -air flotation plants and gives detailed information on the design of flocculation and flotation
tanks, the air … The types of raw waters investigated include lowland river water; soft, highly …

… Dissolved Air Flotation (DAF) is a proven drinking water treatment … flotation performance
is coagulant type. Coagulant selection should depend on water temperature and raw water …

… Recycle ratios of 4.5 to 8%, depending on raw water type and the concentration of the … /mL)
was sufficient to treat successfully all water quality types and concentrations of contaminants. …

… air requirements are described in terms of percentage recycle. The air needed to treat
different water types … ,13 and dispersed air flotation.14 The articles by Edzwald and co-workerG …

… water companies in The Netherlands have gained in the last twenty years in the field of
dissolved air flotation. … Some of these types are described here, each with their advantages and …

… that the type of valve, the degree of the turbulence in flotation … water had a negligible effect
on the precipitation of air from solution. However, their conclusions, with respect to valve type, …

… air flotation (DAF) for drinking water treatment has come a long way. After its pioneering
application to water … Having established the superiority of DAF for some raw water types, the next …

… for dispersed air flotation versus dissolved air flotation processes. Dispersed air flotation
processes … and should be considered for river supplies that fit the water quality types described. …

… The main variables investigated were the type of air distributor (either porous plate, single
hole plate, or multi-hole plate), initial oil concentraton (30 - 600 mg/L), oil drop size distribution …