ABSTRACT

This chapter aims to apply the knowledge the authors have gained in the thermodynamics and transport phenomena of environmental processes to understand and control air pollution. It begins with a discussion of atmospheric processes and how they influence transport and dilution of air pollutants. The chapter examines the control technologies and their fundamental design considerations for each of the major air pollutants. It also aims to develop an understanding, through models and basic design equations, of the key parameters that control the effectiveness of a particular pollution control process. The simple well-mixed box model of the troposphere and stratosphere illustrates the rate of exchange between these two layers of the atmosphere. The chapter focuses on atmospheric processes that occur over global scales, that is tens of thousands of kilometers. Regional processes are those that occur over scales of tens of kilometers to, at most, a few thousand kilometers.