Air Quality Technics

Abstract

The lecture provides different strategies and techniques for emission reduction and pollutant removal from exhaust air flows. The fundamental theories, practical designs and application scenarios of each technique are covered. The basic knowledge is deepened by the discussion of specific air pollution problems of today's society.

Objective

The students gain general knowledge of air pollution and study the methods used for air pollution control. The students know the different strategies of air pollution control and are familiar with their scientific fundamentals. The students can evaluate possible control methods and equipment, design control systems and estimate their efficiencies and costs. They are able to incorporate goals concerning air quality into their engineering work.

Content

The reduction of the formation of pollutants is done by modifying the processes (process-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 to the application of a few basic physical and chemical principles. Procedures for the removal of particles (inertial separator, filtration, electrostatic precipitators, scrubbers) with their different mechanisms (field forces, impaction and diffusion processes) and the modelling of these mechanisms will be covered. 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) will be covered. Discussion of the technical possibilities to solve the actual air pollution problems will be conducted.

Resources