Base Knowledge
Basic knowledge of mathematics, physics and chemistry
Teaching Methodologies
In order to achieve the proposed objectives and to provide the skills defined for the course unit will be taught the theoretical-practical contents, complemented with discussion of the issues addressed and the solving practical application problems. The student will also produce a bibliographical research work on a selected theme within the treatment systems and a study visit will take place.
Learning Results
The objectives of this teaching unit are the acquisition of the following competences
1. Description of the effects caused by discharge of waste, at the level of soil and water, given the characteristics of the waste produced in different human activities and their degradation, and evaluation of the possibility of their treatment by biological means in order to minimize environmental impacts;
2. Mastering the principles of operation of different types of biological treatment (aerobic and anaerobic), the main factors influencing their operation, the physical and chemical parameters to control the operation and the main interventions of operation and maintenance in different systems of liquid and solid waste treatment. Sludge and its processing. Waste valorisation by soil application.
3. Knowledge of the applicable legal provisions.
Program
The theoretical and practical contents will be:
1. Characteristics of different wastewaters. Evaluation of the need and possibility of biological treatment. Legal requirements for effluent discharge.
2. Principles and general scheme of urban wastewater treatment. Aerobic and anaerobic degradation of organic matter. Comparison of processes.
3. Theoretical fundamentals of the main biological wastewater treatment systems: different suspended biomass, fixed biofilm and moving bed biomass systems (MBBR). Membrane biological systems (MBR). Increased nitrogen and phosphorous removal. “Bulking. Anaerobic digestion and septic tanks. Different types of lagooning.
4. Use of soil as a purifying system. Comparison of processes and criteria of their application in the treatment of a wastewater. Fertilizing value of a waste and physical-chemical characteristics of a wastewater to be applied to the soil. Reuse of treated wastewater and environmental impacts.
5. Sludge and its characteristics. Sludge processing. Sludge valorization and its environmental impact. Applicable legislation.
Curricular Unit Teachers
Grading Methods
- - Pesquisa bibliografica - 10.0%
- - Testes teórico-pratico - 45.0%
- - Pratica - 45.0%
Internship(s)
NAO
Bibliography
WEF, 2021. Wastewater Treatment Fundamentals I: Liquid Treatment, Water Environment Federation US, ISBN-10 : 1572783508, ISBN-13 : 978-1572783508
WEF, 2021. Wastewater Treatment Fundamentals II: Solids Handling and Support Systems. Water Environment Federation,US, ISBN-10 : 1572783613, ISBN-13 : 978-1572783614
Fonseca, M. M. & Teixeira, J. Reactores Biológicos- Fundamentos e Aplicações, 1ª ed., Lidel, edições técnicas, Lda., Lisboa, 2007.
Gray, N. F., Biology of Wastewater Treatment. In: J. N. B. Bell (Ed.) Series on Environment Science and Management, 2ª ed., Imperial College Press, 2004.
Metcalf & Eddy, Wastewater Engineering- Treatment and Reuse, 4ª Ed., McGraw Hill, 2003.
Crites, R & Tchobanoglous, G. Small and Decentralised Wastewater Management Systems, WCB- McGraw- Hill, 1998.
Loehr, R.C., Pollution Control for Agriculture Academic Press, Inc.London, 1985.
Handouts and other documentation provided by teachers.