Civil and environmental engineering
Study-unit Code
Ingegneria ambientale
Piergiorgio Manciola
Course Regulation
Coorte 2021
Type of study-unit
Obbligatorio (Required)
Type of learning activities
Attività formativa integrata


Code A002104
Teacher Piergiorgio Manciola
  • Piergiorgio Manciola
  • 40 ore - Piergiorgio Manciola
Learning activities Caratterizzante
Area Ingegneria ambientale e del territorio
Academic discipline ICAR/03
Type of study-unit Obbligatorio (Required)
Language of instruction Italian
Contents Aquatic ecosystems assessment. Urban wastewater Treatments: flow diagrams; wastewater flow estimation; wastewater characteristics; physical treatment processes; outline of chemical treatment processes; biological treatment processes; bacterial growth, biomass yield, microbiological kinetics, rate of utilization of soluble substrates, rate of biomass growth; biological organic removal, biological nitrification/de-nitrification, rate of O2 uptake; advanced wastewater treatments. Treatment and disposal of sludge: anaerobic digestion process; properties of the sludge, thickening devices; sludge stabilization.
Reference texts SUGGESTED TEXTS:
Duplicated Lecture notes
L. Bonomo, Trattamenti delle acque reflue, McGraw-Hill
L. Masotti, P. Verlicchi, Depurazione delle acque di piccole comunità, Hoepli Editore.
Metcalf & Eddy, Ingegneria delle acque reflue. Trattamento e riuso, McGraw-Hill
Educational objectives Dublin 1. The main knowledge and understanding will concern: the processes of environmental pollution; the characteristics of urban waste water and first rain water; the main ideal reactors; physical, biological, bio-chemical purification processes; the main plant schemes for urban waste water treatment.
Dublin 2 and 3. The ability to independently apply the skills acquired will concern: the calculation of the main design parameters of primary and secondary sedimentation tanks, sand traps, aerobic and anaerobic biological compartments; the choice of disinfection techniques for purified water; the choice for thickening, conditioning, dehydration and sludge disposal.
Dublin 4. Interaction in the classroom on learning topics will allow you to acquire an appropriate language to communicate and exhibit the topics covered
Dublin 5. The topics dealt with will be presented critically, leaving the possibility open to further study with references to scientific literature in the sector.
Prerequisites Mathematical analysis: analytic functions, differential and integral calculus of functions of single and several variables, partial differential equations.
Physics and Rational Mechanics: vector calculus, cardinal equations of statics and dynamics. Hydraulics: elements of Hydrostatics, open channel flow and pressurized flow. Chemistry: chemical reactions and redox reactions
Teaching methods Theoretical lessons and practical training. Classroom lectures on all subjects of the program with interactive involvement of students. Classroom exercises performed on the blackboard. Seminar frontal lessons with projector support.
Other information The Sanitary Engineering Environmental module is co-ordinated and preparatory with the Module for Technical Facilities for Waste Treatment. The assessment of acquired skills is carried out at two different times after class of each module.
Statistical data on student exam results:
Students sample: 80; Average grade: 27.07/30; Standard Deviation 1.50/30
Percentage of students who obtained an exam mark included in the range
18 - 21: 2.5 %
21 - 24: 6.3 %
24 - 27: 38.8 %
27 - 30: 52.4 %
The schedule of the exams is available at the following link:
The teaching materials provided by the teachers is available in https://www.unistudium.unipg.it/unistudium/
The course is divided into two coordinated modules: i) Sanitary Engineering Environmental ii) Technical Facilities for Waste Treatment. The assessment of acquired skills is provided at two different times after class of each module
Reception hours: Wednesday, 15:30 - 17:30. Venue: Office of Prof. Manciola Piergiorgio, Water Engineering Section, Department of Civil and Environmental Engineering, Via G. Duranti, 93 Perugia (tel +393356209101).
For information on support services for students with disabilities and / or DSA visit http://www.unipg.it/disabilita-e-dsa
Learning verification modality The verification of the training objectives provides for a test for each of the two modules of the course (Sanitary Engineering and Biotechnological Waste Treatment). For both modules, the test consists of two oral tests which, for logistical needs, can be carried out separately.
The oral tests, lasting about 45 minutes, consist of the illustration of the case studies developed during the course and a dialogue aimed at ascertaining:
- knowledge of the theoretical-methodological contents of the course
- knowledge of the models adopted to simulate the different physico-chemical processes on which the purification of water and solid waste is based;
- knowledge of plant engineering solutions for the removal of pollutants from waste water, for the stabilization of sludge and for the disposal of solid waste;
- the competence in applying the proposed computational procedures;
- the autonomy of judgment in evaluating the various design strategies;
The oral tests also aim to verify the student's ability to present the topics proposed by the Commission with language properties, to support a dialectical relationship during the discussion and to summarize the application results of the calculation procedures studied.
The final evaluation will be carried out by the Commission out of thirty, mediating the results of each test.
Extended program Aquatic ecosystems
1. sources and effects of pollution;
2. aquatic ecosystem self-purification;
3. oxygen balance in lakes and rivers
4. eutrophic assessment and water quality.

Urban wastewater Treatments
1. Flow diagrams wastewater treatment plants (primary, secondary and tertiary treatment systems).
2. Wastewater flow estimation: i) average dry weather flow, average wet weather flow; ii) peak factor, peak flow.
3. Wastewater: i) general characteristics and key design parameters (TS, VS, TSS, VSS, BOD, COD, TOC, ThOD, TKN; ii) correlation between BOD, COD and TOC; iii) wastewater loading rates.
4. Physical treatment processes: i) grid screening, grit chamber, equalization basin, mixing and flocculation, energy requirements; ii) gravity separation (Newton's law, Stokes' law), mass sedimentation, hydraulic loading surface, detention time; iii) primary and final sedimentation tank design, efficiency of sedimentation, flotation, aeration systems.
5. Chemical treatment processes: fundamentals of chemical coagulation, fundamentals of chemical processes for phosphorus removal, chemical precipitation for removal of heavy metals, chemical oxidation from COD/BOD and ammonia removal.
6. Biological treatment processes: i) role of microorganisms, types of biological processes used (attached and suspended biomass); ii) bacterial growth and biomass yield; iii) microbiological kinetics (Monod's law, Michealis & Menten's law); kinetics terminology, rate of utilization of soluble substrates, rate of biomass growth, effect of temperature; iv) biological organic removal, biological nitrification, biological de-nitrification, , rate of O2 requirement; v) fundamentals of biological phosphorous removal; fundamentals of anaerobic treatments; biosolids management.
7. fundamentals of advanced treatments: filtration, disinfection (chlorine, chlorine dioxide, peracetic acid, ozone, UV).

Treatment and disposal of sludge:
1. Anaerobic digestion process: hydrolysis, fermentation, acetogenesis, methanogenesis, reaction rate, design criteria separate reactors and combined, biogas production and energy balance;
2. properties of the sludge: dry portion of the sludge, humidity, specific weight;
3. thickening devices: gravity thickening, dissolved air flotation, gravity belt thickening and rotary drum thickening, centrifuge thickening;
4. sludge stabilization: aerobic stabilization; psychrophilic and mesophilic anaerobic stabilization.
Obiettivi Agenda 2030 per lo sviluppo sostenibile This teaching contributes to the realization of the UN objectives of the 2030 Agenda for Sustainable Development. Objective code: 3, 6, 11


Code A002105
Teacher Giovanni Gigliotti
  • Giovanni Gigliotti
  • Daniela Pezzolla (Codocenza)
  • 32 ore - Giovanni Gigliotti
  • 8 ore (Codocenza) - Daniela Pezzolla
Learning activities Affine/integrativa
Area Attività formative affini o integrative
Academic discipline AGR/13
Type of study-unit Obbligatorio (Required)
Language of instruction Italian
Contents Biotechnological treatment of waste and organic by-products.
The distinction between waste and by-product.
Aerobic, anaerobic and integrated treatments.
Energy and matter recovery through biotechnological waste treatment in a circular economy.
The concept of biorefinery for the production of Biofuels and bioenergy will also be addressed.
Reference texts Teaching material in electronic format provided by the teacher on the UNISTUDIUM platform.
Educational objectives The course aims to introduce concepts relative to biomass-waste recycling for green chemistry promoting the circular economy and the end of waste. The course will introduce the drivers of the bioeconomy. Energy vs. food conflict, biomass production limits and other social themes will be implemented to place the bioeconomy in the new world focused on the Circular Economy.
Scientific and technical aspects related to biomass origin, production, and characteristics will become part of the knowledge to address the biorefinery concept to produce biofuels, bioenergy and biochemical.
Prerequisites No prerequisite.
Teaching methods Lectures
Other information For information on support services for students with disabilities and/or SLD, visit the page http://www.unipg.it/disabilita-e-dsa
Learning verification modality Oral exams on the dates available on the Exam Calendar published on the DICA website.
Obiettivi Agenda 2030 per lo sviluppo sostenibile Affordable and clean energy.

Responsible consumption and production.

Climate action.
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