B019536 - WATER,WASTEWATER AND SOLID WASTE TREATMENT PLANTS

Italian

Wastewater treatment plants: wastewater characterization, preliminary treatments, primary treatments, biological treatments (suspended and attached biomass), solid-liquid separation, sludge treatment.Water supply: softening, coagulation-flocculation, sedimentation and filtration.Solid wastes treatment plants: wastes characterization, BMT, confined landfills.

- Lecture notes;
- Metclaf & Eddy (2006) Ingegneria delle acque reflue. McGraw – Hill (traduzione ed a cura di B. Eramo e P.Sirini)
- Sirini P., Ingegneria Sanitaria-Ambientale. Principi, teorie e metodi di rappresentazione, McGraw-Hill, Milano, 2002
- Sirini P., Tchobanoglous G., Noto la Diega R.C., Ingegneria dei Rifiuti Solidi, McGraw-Hill, Milano, 2009
- Masotti L. Verlicchi P. (2005) Depurazione delle acque di piccole comunità (Hoepli)
- Bonomo L. (2008). Trattamenti delle acque reflue. McGraw – Hill

The course will give a comprehensive overview of design criteria for plants aimed at treating water and wastewater and for municipal solid waste collection and treatment. The several units present in the treatment plants for both water and waste treatment will be analyzed and advanced design criteria will be illustrated. Most common and used treatment trains for water, wastetwater and solid waste treatment will be deeply analyzed and explained with particular attention to the design criteria.At the end of the course the student should have the capacity of:- using the main laws concerning wastewater treatment plants, water supply treatment plants, solid waste treatment plants;- assess suitable treatment trains for urban and industrial wastewater;- perform the design of wastewater treatment plants sections;- asses suitable treatment trains for water supply treatment plants depending upon the quality of the water source;- perform the design of water supply treatment plants;- assess suitable treatment trains for solid waste treatment;- perform the design of a confined landfill.

Advanced knowledge of Sanitary and Environmental Engineering

- Lectures;- guided visits to plants;- classroom exercizes;- seminars.

Students will be asked to carry out (alone or in small groups up to 4 people) one project on water or wastewater treatment and one project on solid waste treatment or confined landfill.Outcomes of the activity will be:- assessment of a suitable treatment train for a specific case study;- block diagram, P&I;- design of sections included in the treatment train;- drawings and technical report.Students elaboration will be regularly revised by professors.

Oral examination. The examination will start from the discussion of projects (one for water or wastewater treatment and one for solid waste treatment) carried out by students.All topics included in the extended program can be discussed during the examination.

Water and wastewater treatment plants:- Laws (Dlgs. 152/06, D.Lgs. 36/03, D.M. 185/03, D.Lgs. 99/92, D.Lgs. 31/01);- design levels;- hydraulic profile;- evaluation of treatment cost.Wastewater treatment plants:- characteristics of urban and industrial wastewater, flow variability, statistical analysis, design values;- preliminary treatments (screenings, grit removal, oil and grease removal);- equalization and pumping systems;- primary treatment (conventional and chemically enhanced primary settling);- secondary treatments: classification, suspended and attached biomass, example of treatment train, aeration, secondary settling, MBRs;- sludge treatment: characteristics of sludges, thickening, aerobic and anaerobic digestion, chemical stabilization, dewatering);Water supply systems- water consumption;- typical treatment trains for surface water and groundwater;- ionic exchange;- softening;- sand filtration;- adsorption;- disinfection.Solid waste treatment- Laws;- solid waste production, collection and characteristics;- Biological-mechanical treatment;- composting;- confined landfill.