| Invited Lectures Six invited lectures presented by leading experts covered major topics of filtration and separation: |
| Solid-Liquid-Separation
by Cake Filtration - State of the Art and Future Expectations |
Invited Lecture 1 | April 15, 2008 | 13:15 - 14:30 h | |
| Among the processes of solid-liquid separation cake filtration offers a maximum of physical and technical variability and the lowest residual solids moisture, which can be achieved by mechanical means. The huge number of different separation problems with regard to particle size, amount of slurry, concentration and chemical composition, boundary conditions of the process and demands on the process result have led to a corresponding high number of technical solutions and apparatus constructions. Considering several new challenges for still insufficient or not solved separation problems further development of cake filtration in theory, experimental investigation, apparatus and process design show a remarkable future potential. | Dr. Harald Anlauf Karlsruhe Technical University Germany |
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| Woven and Nonwoven Filter Media | April 15, 2008 | 15:00 - 16:15 h | |
| Invited Lecture 2 | |||
| Presenter: | |||
| Prof. Richard Lydon Clear Edge Group - Great Britain |
| Gas Cleaning Technology | Invited Lecture 3 | April 16, 2008 | 13:15 - 14:30 h | |
| Gas cleaning technologies are generally driven by the request to meet ever decreasing emission limits and more and more species have been incorporated in that race. Particle emissions are set for total concentration but also dependent upon particle size and chemical composition of particles. Settling chamber, cyclone, electrostatic precipitator (ESB) and filter are compared with each other in terms of particle size range application and features as a combined particle removal and chemical reactor. The comparison is based upon simplified considerations of governing separation mechanisms expressed by dimensionless numbers, and residence times of both gas and particles. Filters exhibit specifically interesting features for acting as a chemical reactor due to their long particle residence time and the intimate contact between gas and particles. The phenomenon of particle re-entrainment may impede overall successful gas cleaning: Particles are re-entrained from the coarse particle hopper in a cyclone, and intermittent particle cleaning during ESB and filter operation leads to re-entrainment of particle aggregates already collected. | Prof. Gernot Krammer NTNU - University of Science and Technology Norway |
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| Solid-Liquid-Separation by Deep Bed Filtration | Invited Lecture 4 | April 16, 2008 | 15:00 - 16:15 h | |
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Removal of particulate or colloidal substances is a main task for treatment of drinking, pool and process water as well as for waste water. Especially to treat highly diluted suspensions in large flow rates, deep bed filtration processes feature several advantages. This technique is well established in water purification for many decades. It has always been advanced on the theoretical as well as on the practical side. Particle deposition takes place inside a relativeIy coarse porous filter layer, whereas the deposition process is based on a complicated interaction of physical-chemical, partly also on microbiological mechanisms. |
Prof. Rolf Gimbel University of Duisburg Essen Germany |
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| Membrane Separation | Invited Lecture 5 | April 17, 2008 | 15:00 - 16:15 h | |
| Because of its intrinsic properties that well fit the requirements of process intensification strategy, membrane technology has many established applications for molecular separations in numerous industrial fields. The most interesting potentialities are related to the possibility to integrate various membrane operations in the same process or in combination with conventional separation units, with imp or tant benefits in product quality, plant compactness, environmental impact and energy use. Beside the traditional membrane separation process (MF, UF, NF, RO, GS, ED, etc.) new membrane operations, such as membrane contactors, are today available. Traditional areas like wastewater treatments and fruit juice concentration have been substantially modified and innovated with the transfer of membrane engineering principles in these sect or s. M or eover, the needs f or fundamentals changes in catalysis in terms of sustainable development, is the driving f or ce of the remarkable w or ldwide research eff or ts in catalytic membrane react or s (CMRs) where chemical conversion and molecular separation are integrated. |
Prof. Enrico Drioli University of Calabria Italy |
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| Simulation of Particle Separation Processes | Invited Lecture 6 | April 17, 2008 | 15:00 - 16:15 h | |
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Separation processes can be split up in different sections: particle transport and particle dynamics (i.e. deposition, arrangement, reentrainment). In the first part of the paper different methods to describe the transport of particles will be shown. Besides Lagrangian particle tracking, Eulerian methods will be explained. The second part focuses on methods to describe the particle separation. Possibilities for simplifications as well as their limitations are presented. Finally, an outlook on possible future trends in simulating particle separation processes will be given. |
Prof. Uwe Janoske University of Cooperative Education Mosbach Germany |
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