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Applied Aspects of Constant Rate Filtration
Abstract
The thorough technological and also design analysis of the rapid filters operation with a constant rate is carried out in Chapter 3. It is based on the solutions of the mathematical problems from the previous chapter, as well as sanitary and hydraulic criteria. The procedure for determining the duration of the filter run (operation period) is shown for similar conditions. This procedure is implemented for the purpose of applied optimization of the filter bed height, the most important design parameter. The consequences of the unavoidable sorting of the granular filtering material due to intensive washing are studied. Filtration is considered with a strict restriction of the impurity accumulation in the pores and, accordingly, the formation of two zones with complete and incomplete deposit saturation in the clogged bed. The technique of the filtration intensification by splitting a single suspension flow into two or more smaller flows is analyzed. The evaluation of the sensitivity of the technological parameters relatively temperature and deposit composition has been carried out.
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