Wet Cake Filtration - Fundamentals, Equipment, and Strategies

Guides readers through the entire process of liquid filtrations, from a basic understanding and lab scale testing to advanced process applications and up-scaling of processesWet Cake Filtration is a key method in solid-liquid separation and plays an important role in many industrial processes from the separation of solid products from a liquid, to removing contaminants in wastewater treatment. Furthermore, separation processes are rarely isolated and the integration as well as necessary pre-treatments in the process chain must be carefully considered and implemented. Supported by more than 40 years of research, development, and teaching, this book provides a comprehensive treatment of all relevant aspects in wet cake filtration as a key method in solid-liquid-separation. The first part of Wet Cake Filtration: Fundamentals, Equipment, Strategies discusses general principles and applications of wet cake filtration, determination of proper feed streams, and filter cake formation. The next chapters deal with variations of pre-treatment and process conditions, including necessary aspects of lab scale tests, up-scaling, and filter design. This is further strengthened with chapters examining particle purification, yield maximization, and cake deliquoring. Lastly, the filter media is discussed as the central piece of wet cake filtration. Beside the different possibilities of available filter media structures and process relevant aspects of filter media selection, the reliable characterization of pore sizes by porometry and innovative additional functionalities are introduced.-Provides information on wet cake filtration?the necessary pre-treatments and process considerations?to guide the reader to develop or improve their own processes-Offers the necessary tools that allow the engineer to transform a lab scale test into a scaled-up process-Presents cake filtration process-related topics like slurry characterization or slurry pretreatment, and special developments s uch as hyperbaric filtration or steam pressure filtration-Discusses promising new processes like gasless cake desaturation and shrinkage crack free cake desaturationWet Cake Filtration is a must-have resource for every engineer working with wet cake filtration, including water chemists, catalytic chemists, food chemists, chemical engineers, biotechnologists, and process engineers.

Inhaltsverzeichnis:

INTRODUCTION AND OVERVIEWSLURRY CHARACTERIZATIONLiquidParticlesSlurrySamplingCAKE STRUCTURE CHARACTERIZATIONPorosityParticle ArrangementPore SizeCHARACTERIZATION OF LIQUID FLOW THROUGH POROUS PARTICLE LAYERSDimensionanalytic Approach for the Flow Through Porous Particle LayersEmpirical Approach for the Flow Through Porous Particle LayersSLURRY PRE-TREATMENT TO ENHANCE CAKE FILTRATION CONDITIONSThickeningAgglomerationFractionation/Classification/SortingFilter Aids - Body Feed FiltrationThermal ConditioningChemical ConditioningFILTER CAKE FORMATIONFiltration Mechanisms during the Initial Phase of Cake FiltrationFormation of Incompressible Filter Cakes by Pressure FiltrationFormation of Compressible Filter Cakes by Pressure FiltrationFormation of Filter Cakes in CentrifugesPARTICLE WASHINGPrinciples of Particle WashingLimits of Particle WashingCharacterization of Particle WashingDilution WashingPermeation WashingFILTER CAKE DELIQUORINGCharacterization of Deliquoring ResultsDesaturati on of Filter CakesConsolidation of Compressible Filter Cakes by SqueezingConsolidation/Desaturation of Compressible Filter Cakes by Gas Differential PressureElectrically Enhanced Press FiltrationSELECTED ASPECTS OF FILTER MEDIA FOR CAKE FILTRATIONWoven Filter Media for Cake FiltrationPorometry - using Capillarity to Analyse Pore Sizes of Filter MediaSemipermeable Filter Media - Gas Pressure Filtration without Gas Flow