Oyegbile Optimization of Micro Processes in Fine Particle Agglomeration by Pelleting Flocculation

1. Auflage 2016
ISBN: 978-1-317-37146-5
Verlag: CRC Press
Format: EPUB
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 152 Seiten

Effective management of waste sludges and slurries produced from many industrial processes such as water and wastewater treatment, mineral processing, food processing etc. is very important from an environmental and economic perspective. Improvement in sludge processing can serve as a tool for improving the environmental quality, as well as natural resource conservation through water re-use, nutrient recycling and biomass utilization. Nowadays, a large proportion of sludge management cost goes into the solid-liquid separation and dewatering prior to eventual disposal or utilization.

Solid-liquid separation is an important unit operation either upstream or downstream of the aforementioned processes and it involves the aggregation or agglomeration of particles in suspension or slurries using a variety of techniques. Despite advances in colloidal science, progress in process engineering with respect to equipment design and development for residuals management has only been incremental but not revolutionary.

This book intends to contribute to scholarly discourse by providing fundamental and theoretical background of the above-subject matter and as well as an overview of recent advances especially in the ancillary fields of colloidal science, water chemistry, hydrodynamics and micro-process engineering. It will also build on previous studies on turbulence-induced flocculation and its application to solid-liquid separation as it has been reported as one of the most promising solid-liquid separation techniques by reporting results of bench-scale testing of a patented pre-treatment device.

Finally, the book will set the stage for future research in this field by discussing scale-up options and potentials for industrial applications.

Autoren/Hrsg.

Oyegbile, Benjamin

Fachgebiete

• Technische Wissenschaften Umwelttechnik | Umwelttechnologie Umwelttechnik
• Technische Wissenschaften Verfahrenstechnik | Chemieingenieurwesen | Biotechnologie Verfahrenstechnik, Chemieingenieurwesen

Inhaltsverzeichnis

Table of Contents

1 Background, Problem Statement and Outline

1.1 Introduction & Study Background

1.2 State-of-the-Art in Residuals Processing

1.3 Problem Statement and Hypothesis

1.4 Overview and Scope of Study

1.5 Outline and Structure of the Thesis

2 Fundamentals of Flocculation and Colloidal Stability

2.1 Structure Formation in Dispersed Systems

2.2 Colloidal Stability and Interfacial Forces

2.3 Kinetics of Fine Particle Aggregation

2.4 Flocculation Assessment Techniques

3 Hydrodynamics and Floc Stability in Sheared Systems

3.1 Hydrodynamics and Fluid-Particle Interactions

3.2 Turbulent Aggregation Processes

4 Materials and Experimental Methods

4.1 Test Materials

4.2 Experimental Methods

5 Design Concept and Process Description

5.1 Structure Formation and Hydrodynamic Conditions

6 Mixing and Hydrodynamic Analysis

6.1 Theoretical Analysis of the Flow Conditions

6.2 Energy Input and Power Consumption

6.3 Fluid Flow and Mixing Characteristics

6.4 Micro and Macro Mixing

7 Optimization of the Micro Processes

7.1 Optimization of the Physicochemical Process

7.2 Optimization of the Pelleting Process

7.3 Process Relevant Pellet Characteristics

8 Conclusions and Perspectives

8.1 Effect of Rotor-Stator Configuration

8.2 Effect of Process Conditions

8.3 Future Perspectives

8.4 Concluding Remarks

Über Autor(innen)

The Author of the book is currently a Research Assistant at the Chair of Minerals Processing, Brandenburg Technical University Cottbus-Senftenberg Germany. His research interest is in the field of residuals and biogenic waste processing, as well as water and natural resource management. He is a member of several professional association such as International Solid Waste Association (ISWA) and American Water Works Association (AWWA). His hobbies include hiking, jogging and environmental activism.