73187 - Environment protection and anthropic activities

Learning outcomes

To provide elements in relation to the technologies for the protection of environmental quality and water resources in relation to specific polluting emissions. To provide knowledge on the main unit operations that can be implemented to control polluting emissions and to limit the environmental impact of specific production lines.

Course contents

Part 1) Wastewater: Cycles and balance in natural and waste water. Technical laws. Industrial and domestic water supply. Hygiene Municipal Regulation. Water outfall discipline. Wastewater reuse regulations. Flowrate and characteristics of domestic and industrial wastewater. Treatability in order to use. Water volumes protection and sanitary reclamation plans. Freshwater for human consumption. Potabilization Clarification and floculation.Filtration. Disinfection. 

Part 2) Urban wastewater treatment: Kinetics and biochemistry of bacterial and algal biomass. Growth and death in suspended and biomasses. Full-scale domestic wastewater treatment plant. Choice and location. Equalization. Raw and fine screens. Sand removal. Primary sedimentation. Biodegradability and biological phases for secondary treatment. Secondary sedimentation. Wastewater disinfection. Treatment and disposal of sludge.

Part 3) Solid waste ad air emissions: Product profile and quantitative characteristics for domestic and industrial solid waste. Optimization of harvest and collecting systems. Landfill design criteria.   Treatment of organic fraction. Meteorology and atmospheric pollution. Main pollutants and chemical reactions in atmosphere. Diffused and localized sources. Technologies for control of polluted emissions and particulate. Principles and schemes utilized in dispersion model

Readings/Bibliography

Recommended:

authors: Bragadin G.L. , Mancini M.L. titolo: "DEPURAZIONE E SMALTIMENTO DEGLI SCARICHI URBANI" editore: PITAGORA - Bologna

Auxiliary books:

Title: WASTEWATER ENGINEERING Autori: Metcalf & Eddy Editore: Mc Graw-Hill – Boston Fourth edition.

Title: AIR POLLUTION CONTROL ENGINEERING Autore: De Nevers N. Editore: Mc Graw –Hill Boston,

Title: INDUSTRIAL WATER POLLUTION CONTROL Autore: Eckenfelder W. W. Editore: Mc Graw –Hill Boston, Third edition

Teaching methods

All subjects developed in room lessons are coupled with applications and practical examples.

During exercise hours are analyzed and discussed different wastewater treatment plant schemes

Assessment methods

Achievements will be assessed by the means of an oral final examination. This is based on an analytical assessment of the "expected learning outcomes" described above.

In order to properly assess such achievement the examination is composed of three questions, each related to one of three main parts of the course program: Wastewater characteristics, Urban wastewater treatment, Solid waste ad air emissions.

To obtain a passing grade, students must demonstrate a knowledge of the key concepts of the subject and a comprehensible use of technical language.

Higher grades will be awarded to students who demonstrate an organic understanding of the subject and a good ability for critical application.

Failing grade will be awarded if the student shows knowledge gaps in key-concepts and logic failures in the analysis of the subject.

Teaching tools

Each student receives:

slides and projected files used during room lessons which are previously given by the teacher

a design example of an active sludge based wastewater treatment

an harvest of existing technical laws regarding: water resources collection, outfall regulation, treatment and reuse of wastewater.

Office hours

See the website of Alessandro Dal Pozzo

See the website of Gianmaria Pio

See the website of Francesco Zanobetti