92872 - CIRCULAR-GREEN MANAGEMENT OF URBAN DRAINAGE

Conoscenze e abilità da conseguire

Al temine del corso lo studente possiede conoscenze sulle soluzioni tecniche e sulla loro progettazione nel contesto della gestione circolare delle risorse idriche. In particolare, lo studente approfondirà: 1. Il concetto di gestione circolare delle risorse idriche; 2. Il clima nel 21 ° secolo: analisi degli impatti dei cambiamenti climatici sulle risorse idriche; 3. Progettazione degli eventi climatici estremi nelle aree urbane soggette a cambiamenti climatici; 4. Teoria delle decisioni per la gestione circolare delle risorse idriche; 5. Best management practices (BMP) per la gestione del drenaggio delle acque; 6. Analisi costi-benefici per le BMP; 7. Qualità delle acque superficiali e sotterranee; 8. L'obiettivo del riciclo dell'acqua al 100% e le relative implicazioni sulle emissioni di C02.

Contenuti

Introduction
Water management in urban areas. Introduction to climate changes and its impact on water resources. Overview of urban drainage systems.

Design of sewer systems
Wastewater flow analysis. Statistical analysis of rainfall observation. IDF curves. Design storm. Stormwater flow analysis: Rational method. Design of drainage systems: pipelines cross-sections and materials, flow velocity bounds. Manholes. Gully pots. Combined sewer overflows.

Storage systems
Water quantity and quality problems in urban areas respect to the receiving water bodies and groundwater. Detention and retention ponds and first flush tanks.

Green Infrastructures
Innovative approaches to urban stormwater management. Definition of Sustainable Drainage Systems (SUDS). Permeable pavements. Infiltration trenches. Green Roofs. Rain Garden. Bioretention Cells. Vegetative Swales. Cost-benefit analysis.

Buildings
Sewer inside buildings. Design of systems for rainfall harvesting.

Drainage of roads, railways and airports
Description and schemes of stormwater management in roads, railways and airports. Design of culverts.

Numerical Modelling of urban drainage systems and open channels
The EPA-SWMM software for the analysis and design of sewer systems, storage tanks, first foul tanks and pumping stations with synthetic and real rainfalls.
The HEC-RAS software for the analysis and design of culverts, open channels and detention ponds in steady and unsteady flow conditions.

Water and circular economy
Relationship between circular economy principles and water management. Ecosystem services. Water recycling and implications on C02 emissions. Introduction to the Life-cycle assessment.

Testi/Bibliografia

Handouts on the topics covered in the course, lecture slides, assignments and exercises and their draft solutions published in “https://virtuale.unibo.it/” for registered students.

Metodi didattici

The course is taught through lectures. Part of them are dedicated to the solution of practical problems, that are developed at the computer.

Modalità di verifica e valutazione dell'apprendimento

The preparation of the student will be assessed through an oral colloquium whose duration is about 30 minutes. The student may present at the exam a brief report of the exercises that were developed during the course. Students are asked to reply to 3-4 questions focusing on the topics that were treated during the lectures. Students may be asked to solve a short exercise. The exam is passed if the student proves to be prepared on the theoretical principles and analytical derivations that were taught during the lectures.

Strumenti a supporto della didattica

Lectures, tutorials, expert seminars and laboratory and technical visits. In-class exercises including spreadsheets/computer programming and use of specific software (SWMM and HEC-RAS).

Orario di ricevimento

Consulta il sito web di Marco Maglionico