Filtration Enhanced By Equipment Design

When the SS concentration in filter influents approaches 120 mg/l, single-layer or surface filtration equipment is usually quickly overloaded, and the run lengths between cleanings become short, ranging from 1 to 3hr with solids removal capacities of about ]/ 4 to 1/2 lb per sq ft.

Multilayer or deep-bed filters were developed for such applications. They enhance the filter capacity by providing more or deeper coarse layers where more settling and storage of solids can take place. Roughly, an extra Ate lb of solids capacity is obtained with each additional layer or foot of depth in the filter.

0 0

Post a comment