Wastewater Analysis and Treatment

Maths, Physics and Biology

A UC é constituída por dois módulos:

               – Módulo I – relativo à compoenente teórico-prática (TP)

               – Módulo II – relativo à compoenente laboratorial (PL)

As metodologias de ensino e de aprendizagem são baseadas em: i) aulas de exposição dos conteúdos teóricos-práticos complementadas com a apresentação de estudos de casos, a discussão participativa dos temas abordados, a resolução de problemas de aplicação prática, incluindo o dimensionamento de alguns órgãos de ETAR; ii) aulas PL de determinação dos diferentes parâmetros analíticos que caracterizam a água residual, complementadas com a instalação de um reator à escala piloto. Será ainda realizada uma visita de estudo a uma ETAR. As aulas são complementadas pelo acompanhamento tutorial dos estudantes, o que permitirá avaliar a progressão destes na aquisição de conhecimentos e competências e a metodologia de ensino adoptada. Este modelo permitirá promover a participação produtiva dos estudantes e o desenvolvimento de competências específicas no âmbito desta unidade curricular.

1.    Recognize and justify the importance of wastewater treatment.

2.    Know the quantitative and qualitative characterization of wastewater, the different analytical applied methods, and the applicable legal requirements.

3.    Know the operations and processes associated with a wastewater treatment plant.

4.    Explain the principles of operation of the main elements of a wastewater treatment plant.

5.    Know the parameters and design criteria and integrate them in the design of the elements covered.

6.    Explain the principles of operation of the different types of biological treatment, the main parameters (physical-chemical and operational) which characterize and influence their operation and the main interventions of operation and maintenance.

7.    Know the tertiary treatment and the valorization of treated wastewater.

8.    Know the treatment and valorization of sludge.

1.    Potential environmental impacts of inadequate wastewater discharge.

2.    Applicable legal framework associated to wastewater and its valorization.

3.    Most relevant microbiological and physical-chemical characteristics and methods of analysis.

4.    Wastewater treatment and scheme of a wastewater treatment plant – operations and unit processes.

5.    Preliminary and primary treatment: screening, equalization, de-sanding, flotation and primary sedimentation.

6.    Secondary treatment. Aerobic and anaerobic degradation of organic matter. Biological treatment systems: fixed and suspended biomass systems, fixed biomass in moving bed, membranes and lagooning. Nitrogen and phosphorus removal. Secondary sedimentation. Installation of a pilot reactor to characterize the process, with determination of operational, physical-chemical, and microbiological parameters.

7.    Tertiary treatment: disinfection and ultraviolet. Wastewater characteristics according to its final disposal.

8.    Sludge treatment: thickening, dehydration, anaerobic digestion, composting and final disposal. Sludge valorization and its fertilizing value.

Continuous assessment

The assessment is made according to the following criteria:

Module I - with a weight of 70% of the final mark consisting of:

            - two written exams - 60%

            - Project work - 10%.

Module II - with a weight of 30% of the final mark, which consists in the elaboration of a report associated to the laboratory classes.

To obtain approval, the classification of each component of the evaluation must be superior to 7,5 of 20 values. Final approval needs a classification superior to 10 out of a maximum 20 values.

Final exam evaluation: Written test – 100%

NAO