Rotary disc filters are available at a relatively low capital cost with total cloth areas between 0.05 and 300 m2. They have an inherently large Filter area to Floor space ratio and their flexibility is enhanced by an ability to process multiple feedstocks at the same time within a single unit.
The Kl Filter, very light yellow in color, gives slightly less correction than the Kodak Color Filter. It renders the sky somewhat darker than would be the case with no filter, showing up the clouds but not to such an extent as does the Kodak Color Filter or K2 Filter. Red and yellow subjects such as flowers are rendered lighter than with no blue lii>ht from the sky; the G Filter absorbs this blue light and consequently the shadows are rendered darker than they would be if no Filter were used.
Horizontally mounted vessels: These filters contain vertically mounted flat elements with filtration areas up to 300 m2 (see Figure 7.21). Although economic of height requirements, a large Floor space can be required, particularly where Although variants exist, the basic unit shown in Figure 7.22 comprisesisequences of narrow vertical chambers lined on both sides by Filter cloths. The chambers, formed between hollow frames and flat Filter plates or between adjacent recessed Filter plates, allow for Filter cake formations as well as washing and gas-blown deliquoring operations.
Rotary disc filters are available at a relatively low capital cost with total cloth areas between 0.05 and 300 m2. They have an inherently large