546-0912/02 – Flotation (Fl)
| Gurantor department | Department of Environmental Engineering | Credits | 10 |
| Subject guarantor | prof. Ing. Vladimír Čablík, Ph.D. | Subject version guarantor | prof. Ing. Vladimír Čablík, Ph.D. |
| Study level | postgraduate | Requirement | Choice-compulsory |
| Year | | Semester | winter + summer |
| | Study language | Czech |
| Year of introduction | 2002/2003 | Year of cancellation | 2022/2023 |
| Intended for the faculties | HGF | Intended for study types | Doctoral |
Subject aims expressed by acquired skills and competences
The goal is to master the physical-chemical hydroseparation process called flotation, both in theory and in practical terms. Flotation can be used for treatment of municipal and industrial water and drinking water during treatment.
Teaching methods
Individual consultations
Summary
Theoretical premise of flotation (thermodynamics of elementary flotation),
physical, chemical and electrochemical characteristics of interface of phases
in connection with mechanism of hydrophobisation of solid phase. Modification
of flotation options for separating of mineral raw materials, industry waste
and waste water. Type flotation devices, regenerative modes and technological
diagrams.
Compulsory literature:
Recommended literature:
Mohd N. A., Puganeshwary P., Hamidi A. A.: Optimization of coagulation and dissolved air flotation (DAF) treatment of semi-aerobic landfill leachate using response surface methodology (RSM). Desalination, Volume 277, Issues 1-3, 15 August 2011, Pages 74-82.
Subramanyan V., Jothinathan L., Ganapathy S.: Effects of alternating and direct current in electrocoagulation process on the removal of cadmium from water. Journal of Hazardous Materials, Volume 192, Issue 1, 15 August 2011, Pages 26-34.
Zouboulis A. I., Avranas A.: Treatment of oil-in-water emulsions by coagulation and dissolved-air flotation. Colloids and Surfaces A: Physicochemical and Engineering Aspects, Volume 172, Issues 1-3, 25 October 2000, Pages 153-161.
Additional study materials
Way of continuous check of knowledge in the course of semester
Individuální konzultace.
E-learning
Other requirements
The study of foreign literature.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
1. The essence flotation, its historical development and significance. Terminology and classification of flotation in the physico-chemical and electrochemical processes of the separation of substances.
2. Structure and composition of the phases in the flotation process (solid, liquid and gas), the properties of the solid phase. Flotovatelnost as a property of the solid phase methodology of determination.
3. Elementary flotation act-thermodynamic characteristics of the flotation process.
4. Physical fundamentals of flotation. The equation of balance of physical forces on the three-phase contact. The particle size and the gas bubbles in the flotation conditions.
5. Probabilistic characteristics of flotation.
6. Chemical basis of flotation. Flotation reagents, their classification and role in the process. Adsorption at interfaces.
7. Flotation collectors, their chemical nature and mechanisms of their action in the water-repellency of solid phase.
8. Collectors, the major types and characteristics.
9. The flotation frother, their classification, chemical characteristics and methods of sorption. Function warbler interfacial gas-liquid. Formation and properties of two-and three-phase flotation foam. Measurement of foaming.
10. Control flotation reagents, their distribution according to the role and effect of flotation. Mechanisms of flotation agents activating suppressors and modifiers.
11. Machine-technical equipment flotation.
12. Flotators mechanical, pneumatic, combined, strange and development. Flotation device for wastewater treatment. The auxiliary technical equipment for flotation.
13. HR - curve, M - curve
14. Classification of the machining operations and schemes flotation. Examples of flotation technology of coal, ores, industrial minerals.
15. Flotation in water treatment.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
Předmět neobsahuje žádné hodnocení.