Selection of Specific Techniques

Purchas (1981) has suggested a selection system consisting of three selection steps to produce a shorthand profile of the application from a combination of desk study to define the required duty, and some simple laboratory testing to characterize the separation properties of the solid-liquid mixture. The profile is expressed as a sort of code formed from a group of alphabetic letters (e.g., bdh-BEG-K), and is used in a fourth step to select suitable 

Classification of Solid-Liquid Separation Equipment Based on Suitability for Duty and Slurry Type 

Equipment Suitable for Duty Specification Slurry Characteristics  

Source Adapted from Purchas, D. B. 1981. Solid/Liquid Separation Technology. Croydon, UK Uplands Press. 

The second step consists of running a simple test to identify the settling characteristic of the slurry. A sample is allowed to settle in a one liter 

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