78840 - Physico - Chemical Assessment 2

Academic Year 2017/2018

  • Docente: Alberto Modelli
  • Credits: 8
  • SSD: CHIM/02
  • Language: English
  • Moduli: (Modulo 1) Alberto Modelli (Modulo 2) (Modulo 3) Laura Tositti (Modulo 4)
  • Teaching Mode: Traditional lectures (Modulo 1) Traditional lectures (Modulo 2) Traditional lectures (Modulo 3) Traditional lectures (Modulo 4)
  • Campus: Bologna
  • Corso: Second cycle degree programme (LM) in Chemistry (cod. 8856)

    Also valid for Second cycle degree programme (LM) in Chemistry (cod. 8856)

Learning outcomes

At the end of the course the student will know the relationship between physico-chemical behaviour of substances and their environmental impact. The student will know how properly collect samples from the environment and how to detect and assess environmentally concerning substances The student will be aware of the importance of toxicological aspects and toxicological assessment of chemicals.

Course contents

Transport processes. Mass balance. Input, output and reaction-terminated flows. Common kinetic equations. Differential balance for individual components. Sedimentation; Stokes’ Law. Dynamic and kinetic viscosities; Reynolds Number. Conductance and conductivity; salinity.

Molecular and turbulent diffusion; Fick's Laws; Factors influencing diffusivity. Atmospheric stability; Pasquill's Model for chimney plumes; estimation of ground pollutant concentrations as a function of various parameters. Computer simulations.

Energy balance. Bernoulli equation for both incompressible fluids and gases. Decrease in atmospheric pressure and temperature with altitude. Buoyancy.

Variations in the distribution of volatile atmospheric components with altitude. Problem of ozone and relevant reaction cycles. Thermal energy; transport through thermal conduction, convection and irradiation (Stefan-Boltzmann and Wien laws); Greenhouse effect.

Readings/Bibliography

- File used for lectures, mainly taken from:

- R. Francesconi, Appunti di Chimica Fisica Ambientale, CLUEB, BO, 2002.

- Chap. 19 - P.A. Vesilind, J.J. Pierce and R.F. Weine, Environmental Engineering, 3^ Ediz., Butterworth- Heinemann, Boston, 1994.

Teaching methods

Lectures, tutorials, numerical exercises.

Assessment methods

Individual written answer test (70 %)

Report on a given case study (30 %)

Teaching tools

Projection of slides. A pdf file is available to students.

Office hours

See the website of Alberto Modelli

See the website of

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See the website of Laura Tositti