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Politecnico di Torino
Academic Year 2017/18
05ANFNF
Environmental and contaminant dynamics
Master of science-level of the Bologna process in Environmental And Land Engineering - Torino
Teacher Status SSD Les Ex Lab Tut Years teaching
Tiraferri Alberto ORARIO RICEVIMENTO A2 ICAR/03 50 30 0 30 8
SSD CFU Activities Area context
ICAR/03 8 B - Caratterizzanti Ingegneria per l'ambiente e il territorio
Subject fundamentals
The course "Environmental Fate and Transport of Contaminants" evaluates the complex phenomena that determine the final fate of liquid or gaseous pollutants after their emission in different environmental matrices; the aim is to establish a quantitative correlation between source factors and consequent modification of the quality of the receptor systems.
Expected learning outcomes
The objective of the course is to teach the physical, physico-chemical, chemical, and biological mechanisms that govern the transport and transformations of a pollutant in the environment, thus determining its lifetime, pathway from source to receptor, and finale fate. Particular attention is devoted to the comprehension of the physical significance of the numerical models that very often are employed to evaluate the transport and transformation of pollutants, in order to be able to use such models with a full understanding of their physical meaning.
During the course, the student should gain the ability to evaluate the phenomena that influence contaminant behavior in the environment, and to manipulate conceptual and numerical tools to quantitatively describe contaminant fate.
Prerequisites / Assumed knowledge
For the robust comprehension of the phenomena and the models that are presented during the course, the students should have knowledge of:
- fundamental aspects of organic and inorganic chemistry;
- chemical kinetics and biological kinetics;
- phenomena of mass transfer and inter-phase transport;
- mass and energy balance.
- fundamentals of numerical calculation and mathematical analysis
Contents
Introduction: generation of pollutants, emission factors, contaminant and pollutant distribution.
Flow and reaction kinetics in ideal and in non-ideal reactors.
Elements of atmosphere dynamics at the local scale, dynamics of the Earth's boundary layer, shape and behavior of emission plumes; transport of pollutants in the atmosphere, modeling of the spatial and temporal variations of concentrations; atmospheric acidity, aerosol formation, dry and wet deposition phenomena; chemical transformation phenomena in the troposphere and in the stratosphere; emission of greenhouse gases, predictive models of extended time scales.
Dynamics of pollutants in surface water bodies: dissolved oxygen and Streeter-Phelps modeling in the river.
Excerpts on the movement of pollutants in soil and groundwater, and evaluation of advanced phenomena of phase transfer and transformation with different kinetics.
Delivery modes
Theoretical lessons will be accompanied by applicative and numerical exercises. Exercises will include numerical examples of calculation models previously presented by the instructor to be solved using Matlab software, or using commercial numerical software (e.g., Visual Modflow). The exercises will be solved by groups of two students.
Texts, readings, handouts and other learning resources
The instructor will teach using the blackboard and will show some exemplifying slides. The slides shown in class and shared on the portal will not be sufficient to study for the exam; they will only serve as support for the lessons. No lecture notes or other materials will be provided. All notions and methodologies, as well as some of their application examples, are also discussed in many texts that (not mandatory) can be used as support and to complement to lessons. Among these texts:
- Chemical fate and transport in the environment, 2nd Edition, by Hemond H.F. and Fechner-Levy E.J., Academic Press
- Environmental modeling (Fate and transport of pollutants in water, air, and soil), 1996, by Schnoor J.L., Wiley
Reactors:
- Water quality engineering: physical/chemical treatment processes, (2013), by Benjamin M.:, Lawler, D., Wiley
- Chemical reaction engineering, 3rd Edition (1999), Levenspiel O., Wiley
Atmosphere dynamics:
- Atmospheric chemistry and physics, 2nd Edition (2006), by Seinfeld J.H. and Pandis S.N., Wiley
- Applied contaminant transport modeling, 2nd Edition (2002), by Zheng C. and Bennett G.D., Wiley
Subsoil transport:
- Modeling groundwater flow and contaminant transport, (2010), by Bear J. and Cheng A.H.-D., Springer
- Contaminant geochemistry: interactions and transport in the subsurface environment, 2nd Edition (2014), by Berkowitz B., Dror I. and Yaron B., Springer
Assessment and grading criteria
Grading is based on a final written exam (duration of one and half hour) comprising theoretical questions and simple applicative calculations. The use of electronic tools (calculators, phones, etc...), books, notes, or any other studying materials will NOT be allowed during the written exam. If this exam is evaluated with a sufficient grade (18 or higher), an optional brief oral examination will be performed. During this oral discussion, the teacher will introduce notions, problems, or examples to verify the studentís understanding of the course content, and his or her ability to apply the computing tools presented in class or in the exercises. Exercises solved during the course will not be evaluated, but submission of their solutions is necessary to be admitted to the exam. Both the written examination and the oral discussion will also encompass the exercises, which will be used as a basis for an assessment of the student's understanding of the theoretical fundamentals underlying their resolution.

Programma definitivo per l'A.A.2017/18
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