Drainage method

Batch Extractors. Coarse soHds are leached by percolation in fixed or moving-bed equipment. Both open and closed tanks (qv) having false bottoms are used, into which the soHds are dumped to a uniform depth and then treated with the solvent by percolation, immersion, or intermittent drainage methods. 

In the drainage method, the dynamic liquid holdup is measured in which the inlet and outlet streams are... 

The grain size limitations for various dewatering systems are shown in Figure 4.7. A checklist for selection of drainage methods appears in Table 4.2. 

Harwalkar, V. R., and Kalab, M. (1983). Susceptibility of yoghurt to syneresis. Comparison of centrifugation and drainage methods. Milchwissenschaft 38, 517-522. 

Prat F, Chapat O, Ducot B et al (1998) A randomized trial of endoscopic drainage methods for inoperable malignant strictures of the common bile duct Gastrointest Endosc 47 1-7 Raijman I (1999) The wallstent for benign biliary obstruction. 

High-speed force measurements can be performed with the surface forces apparatus (SFA) or atomic force microscope (AFM). fn particular, in the drainage method the end of the spring away from the attached sphere is driven toward the (fixed) plane with a constant driving speed (as shown in Fig. 2.4). The sphere itself, however, does not move at a constant speed, so the spring is deflected as a result of both the surface force (which should be measured separately) and the hydrod3mamic forces. The solution of the (differential) equation of motion allows to deduce a... 

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