Gaseous effluents

Recommended Prerequisites

Calculus, Physics, Chemistry, Thermodynamics and Phenomena Transport and Air Quality.

Teaching Methods

The teaching is provided through lectures and theoretical-practical classes. In the lectures are exposed theoretical concepts and methodologies in the study of problems, together with some application examples. In theoretical practical classes the students must solve problems for applying concepts learned in the lectures. These classes are also designed to solve more complex problems related to the design of the equipments, in which the work and group discussion are promoted.

Learning Outcomes

Provide students with knowledge in the following areas: (i) types of technologies to control gaseous emissions and equipment selection criteria; ii) qualitative and quantitative characterization of gaseous and particulate matter emissions; (ii) definition of appropriate technology and equipment sizing to treat emissions from an industrial process; and iii) equipment sizing and assessment of operating conditions.Develop the following skills: the theoretical knowledge, capacity for analysis and synthesis; ability to integrate knowledge to solve practical problems.

Work Placement(s)

No

Syllabus

1. Introduction to technologies of treatment of gaseous emissions. Selection of equipments. Economic evaluation.

2. Characterization of gaseous effluents. Gaseous and particulate material composition. Direct measures and indirect measures.

3. Particle separation. Particle properties and size distribution. Particle removal mechanisms.

4. Technologies to control particle emissions: gravity settling chambers, cyclones, fabric filter systems and electrostatic precipitators. Operating conditions, applications, efficiency equations and design.

5. Technologies to control gas emissions: Types of gas scrubbers. Gas-liquid absorption. Equilibium and mass balances. Sizing of packed towers. Gas-solid adsorption. Adsorbents and isotherms. Design of fixed beds. Thermal incinerators and catalytic incinerators. Major VOC incineration technologies. Mass and energy balances. Technologies for CO2 sequestration.

Head Lecturer(s)

Licínio Manuel Gando de Azevedo Ferreira

Assessment Methods

Assessment
Report of a seminar or field trip: 5.0%
Frequency: 35.0%
Exam: 60.0%

Bibliography

1. De Nevers, N.. Air Pollution Control Engineering. 2nd edition,  McGraw- Hill, New York, 2000.

2. Wang, L.K., Pereira, N.C., Y-T. Hung. Air Pollution Control Engineering, Humana Press Inc., New Jersey, 2004.

3. Turner, D. B. Workbook of atmospheric dispersion estimates.  2^nd ed., CRC-Press, New York, 1994.

4. Zannetti, P. Air Pollution Modeling, Computational Mechanics Publications, New Jersey, 1990.

5. Davis, M.L. and Cornwell, D.A. Introduction to Environmental Engineering, McGraw-Hill, 1991.