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Waste Recycling Technologies
Last Updated: 2026-02-05 16:02:03
Abstract
Waste Recycling Technology (WRT) is a sub-discipline of Mechanical Process Engineering. WRT is employed in production plants processing contaminated soil, construction wastes, scrap metal, recovered paper and the like. While WRT is well established in Central Europe, it is only just now catching on in emerging markets as well.
Objective
At the core of this course is the separation of mixtures of solid bulk materials according to physical properties such as color, electrical conductivity, magnetism and so forth. After having taken this course, the students should have concept not only of the unit operations employed in WRT but also of how these unit operations are integrated into the flow sheets of production plants.
Content
Introduction Waste Recycling: Scope and objectives Waste recycling technologies in Switzerland Fundamentals Properties of particles: Liberation conditions, Particle size and shape, Porosity of bulk materials Fluid dynamics of particles: Stationary particle beds, Fluidized beds, Free settling particles Flow sheet basics: Balancing mass flows Standard processes: batch vs. continuous … Assessment of separation success: Separation function; grade vs. recovery Separation Processes Separation according to size and shape (Classification): Screening, Flow separation Separation according to material properties (Concentration): Manual Sorting, Gravity concentration; Magnetic separation, Eddy current separation, Electrostatic separation, Sensor technology, Froth flotation
Resources
Lecture Notes
The script consists of the slides shown during the lectures. Background material will be provided on the script-server.
Literature
A list of recommended books will be provided.
General Information
- Language
- English
- Levels
- DR , MSC
- Frequency
- Yearly recurring
Examination
- Type
- session examination
- Mode
- written 90 minutes
- Aids
- pencil, eraser, rulera basic pocket calulator will be provided for the exam
Course Components
| Type | Title | Time & Place | Hours |
|---|---|---|---|
| lecture with exercise | Waste Recycling Technologies |
|
2 h weekly |
Offered In
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Waste Management (Remark: 102-0337-00 Landfilling, Contaminated Sites and Radioactive Waste Repositories only for those students also taking module "System Analysis in Urban Water Management" as replacement of 102-0217-00 Process Engineering Ia in module "Waste Management".)
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Waste Management (Remark: 102-0337-00 Landfilling, Contaminated Sites and Radioactive Waste Repositories only for those students also taking module "System Analysis in Urban Water Management" as replacement of 102-0217-00 Process Engineering Ia in module "Waste Management".)
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Elective Modules (For all majors.)
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EM: Waste Management (Elective Module for Majors "River and Hydraulic Engineering" "Urban Water Management" and "Water Resources Management". Remark: 102-0337-00 Landfilling, Contaminated Sites and Radioactive Waste Repositories only for those students also taking module "System Analysis in Urban Water Management" as replacement of 102-0217-00 Process Engineering Ia in module "Waste Management".)
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Doctorate Materials Science (Further information at: )
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