Autumn Semester 2020 takes place in a mixed form of online and classroom teaching.
Please read the published information on the individual courses carefully.

102-0635-01L  Air Pollution Control

SemesterAutumn Semester 2016
LecturersB. Buchmann, P. Hofer
Periodicityyearly recurring course
Language of instructionGerman

AbstractThe lecture provides in the first part an introduction to the formation of air pollutants by technical processes, the emission of these chemicals into the atmosphere and their im-pact on air quality. The second part covers different strategies and techniques for emis-sion reduction. The basic knowledge is deepened by the discussion of specific air pollution problems of today's society.
ObjectiveThe students gain general knowledge of the factors resulting in air pollution and the techniques used for air pollution control. The students can identify major air pollution sources and understand the methods for measurement, data collection and analysis. The students can evaluate possible control methods and equipment, design a control system and estimate the efficiency and cost.
The students know the different techniques of air pollution control and their scientific basements. They are able to incorporate goals concerning the air quality into their engineering work.
ContentPart 1 Emission, Immission, Transmission
Fluxes of pollutants and their environmental impact
- physical and chemical processes leading to emission of pollutants
- mass and energy of processes
- Emission measurement techniques and concepts
- quantification of emissions from individual and aggregated sources
- extent and development of the emissions (Switzerland and global)
- propagation and transport of pollutants (transmission)
- meteorological parameters influencing air pollution dispersion
- deterministic and stochastic models, describing the air pollution dispersion
- dispersion models (Gaussian model, box model, receptor model)
- measurement concepts for ambient air (immission level)
- extent and development of ambient air mixing ratios
- goal and instrument of air pollution control

Part 2 Air Pollution Control Technologies
-The reduction of the formation of pollutants is done by modifying the processes (pro-cess-integrated measures) and by different engineering operations for the cleaning of waste gas (downstream pollution control). It will be demonstrated, that the variety of these procedures can be traced back on the application of a few basic principles of physical chemistry.
- Procedures for the removal of particles (inertial separator, filtration, electrostatic pre-cipitators, scrubbers) with their different mechanisms (field forces, impaction and diffu-sion processes) and the modelling of these mechanisms.
- Procedures for the removal of gaseous pollutants and the description of the driving forces involved, as well as the equilibrium and the kinetics of the relevant processes (absorption, adsorption as well as thermal, catalytic and biological conversions).
- Discussion of the technical possibilities to solve the actual air pollution problems.
Lecture notes- Brigitte Buchmann, Air pollution control, Part I
- Peter Hofer, Air pollution control, Part II
- Lecture slides and exercises
LiteratureList of literature included in scrip
Prerequisites / NoticeCollege lectures on basic physics, chemistry and mathematics