Air Pollution Controll II

Abstract

The lecture provides an introduction to the technical processes for waste gas cleaning. It is shown that the variety of these procedures is an application of basic principles of physical chemistry. The basic knowledge in air pollution control is increased by working on specific problems and case studies. Thereby the frame given by environmental politics is taken into consideration.

Objective

The students shall know the different techniques of air pollution control and their scientific basements. They shall to be able to incorporate goals concerning the air quality into their engineering work.

Content

Air Pollution Control Technologies (A): The reduction of the formation of pollutants by modifying the processes (process-integrated measures) and by different engineering operations for the cleaning of waste gas (downstream pollution control): - 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 taking into consideration different types of air flow (block flow and mixed flow). - 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 (condensation, absorption, adsorption, gas permeation, as well as thermal, catalytic and biological conversions). Reduction of the Emissions (B): The concepts of national and international politics in air pollution control are explained with reference to actual problems in this field. The reduction of emissions in various processes and installations are outlined. Thereby the elements learned in part I and IIA of this lecture are practically applied. This will partially be done by case studies. Finally the technical possibilities and their contribution to solve the actual global air pollution problems are discussed.

Resources