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Politecnico di Torino
Academic Year 2017/18
05BIKMO
Environmental engineering
1st degree and Bachelor-level of the Bologna process in Environmental And Land Engineering - Torino
Teacher Status SSD Les Ex Lab Tut Years teaching
Onofrio Maurizio Francesco Eugenio ORARIO RICEVIMENTO RC ICAR/03 64 16 0 0 16
SSD CFU Activities Area context
ICAR/03 8 B - Caratterizzanti Ingegneria ambientale e del territorio
Subject fundamentals
The aim of the course is to provide to the students the competence necessary for the choice and definition of processes and technologies for the treatment of pollutants presents in liquid and gaseous flows and in solid matrix. At the end of the course the student is able to define and develop a basic project about environmental clean up through the equilibrium condition, both physical and chemical-physical, the definition of balance equations and the basic principles about transport phenomena.
Expected learning outcomes
The first part of the course focuses on equilibriums (chemical, chemical-physical and physical) useful to the student to the prediction of evolution conditions of transfer systems between phases and/or chemical reactions, from initial conditions of non-equilibrium.
The second part of the course shows the technologies used in pollutants treatment, the basic requirements for plants design and choice criteria among different technological options.
At the end of the course the students have to be able to set the solution of a problem related to the treatment of pollutants flows, providing the possible options and giving the information necessary to sizing the equipments.
Prerequisites / Assumed knowledge
It requires the knowledge of the topics covered in the course of analysis, physics and basic chemistry.
Contents
- Heat of formation and heat of reactions; fuels, calorific value (high and low), stoichiometric air and flue gas, enthalpy balance, adiabatic flame temperature, efficiency (4 hours).
- Chemical equilibrium in gaseous phase.
- Physical equilibrium: the components partition between phases; absorption, distillation, adsorption, crystallization, solvent extraction, ion exchange.
- Stage operations: stage calculation using graphical and analytical method; notes about treatment systems.
- Transport properties: knowledge useful to define the transport equation, in particular referring to both matter and heat transport.
- Pollution characteristics of the substances and effluents: measurements criteria, hazardous characteristics, definition of hazardous substance/preparation.
- Emission limits and specific emission.
- Methods for the determination of principal pollutants.
- Environmental impact components'gaseous, liquid, solid effluents: classification, release conditions, effects, notes about the toxicity of substances.
- Elements of Environmental regulation: acceptable conditions for effluents, parameters determination methods, sample representativeness.
- Liquid effluents'waste water treatment:
' primary treatment: equalization, coarse solids separation, sedimentation, flotation;
' chemical treatment: coagulation, oxidation, reduction, flocculation;
' biological treatment: aerobic digestion, anaerobic digestion, suspended and adherent biomass systems;
' tertiary treatment: nitrification, denitrification, dephosphatation, adsorption, disinfection, filtration;
' membranes, treatment: reverse osmosis, ultrafiltration;
' sewage sludge treatment: stabilization, digestion, inertization, heat treatment.
- Gaseous effluents:
' particulate phase removal: cyclone, mechanical filters, electrostatic filters, scrubbers;
' gas removal: absorption, adsorption, oxidation, biofiltration;
' chemical treatment: catalytic conversion, combustion.
- Solid effluents and waste:
' material recovery: materials recycling, condition, leaching, distillation;
' energy recovery: ashing;
' inerting;
' biological process: composting, anaerobic digestion.
Delivery modes
The course includes the development of exercises in lecture room during which numerical examples about the topics dealt are explained, in particular referring to matter and energy balance, to combustion, to the development of basic project about system treatment of liquid and aeriform effluents.
Exercises require of 18-20 hours.
Texts, readings, handouts and other learning resources
Lecture notes, distributed during the course, and student own notes are the supporting material to take the examination.
Assessment and grading criteria
Learning assessment consists in a oral exam, usually organized in three questions. The first two contribute about 75% on the final mark.

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