Publisher's Synopsis
Excerpt from Slime-Filtration
The effort to secure a continuously-acting filter has resulted in two important types being developed, of which the Ridgway and the Oliver are the best known. Both of these filters utilize a comparatively thin slime-cake. Both Operate very success fully, and compared with the thick-cake machines have de cided advantages, brie?y stated as simplicity of design; prob ably lower capitalization-charges for equal capacities; lower Operating-costs and less attention required in the Operation.
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