Faculdade de Ciências e Tecnologia

Treatment and Valorization of Effluents and Residues



Academic unit

Faculdade de Ciências e Tecnologia


Departamento de Ciências e Tecnologia da Biomassa



Teacher in charge

Benilde Simões Mendes

Weekly hours


Total hours


Teaching language



The curricular unit objective is to provide the students with a knowledge set that allows the understanding of the current treatment and valorization processes of the effluents and residues of the agro food industries and the associated importance and economic value, in a business, environmental and social´s framework and yet the most important legislative documentation. It is favored the skills development´s either on the interpretation and analysis concerning the selection/adequacy of the treatment and valorization processes and the competences to evaluate or develop its application.


Background on biology, physics and chemistry.

Subject matter

1. The importance of water in the food industry. Characteristics of the wastewaters and solid residues generated by the most important agro food industries.

2. Basic and integrated systems for the treatment of wastewaters and residues.

3. Physic-chemical and biological treatment systems. Residues and sludge treatment systems.

4. Residues recovery and materials recycling. Residues and wastewaters’ valorization.

5. Environmental, social and economic importance. National and EU rules.


Arceivala, S. J. (1981) Wastewater Treatment and Disposal: Engineering and Ecology in Pollution Control, Marcel Dekker Inc. (Publs.), 892 pp (ISBN 978 0824769734) 

Santos Oliveira, J. F. (1982) Operações e processos fundamentais em engenharia sanitária: fundamentos da depuração biológica. UNL (Ed.), Lisboa, 256 pp.  

J. F. Santos Oliveira, Benilde Mendes, Nuno Lapa (2009) Resíduos – Gestão, Tratamento e sua Problemática em Portugal, Lidel-Edições Técnicas, Lda (Ed.), Lisboa, Porto, Coimbra, 542 pp (ISBN: 978-972-757-504-6). 

Grady Jr, L. C.P.; Daigger, G. T.; Love, N. G. (2009) Biological Wastewater Treatment, (Environmental Science & Pollution), CRC Press (Pubs.), 3rd Edition, 1200 pp (ISBN 978 0849396793) 

Tchobanoglous, G.; Burton, F. L.; Stensel, H. D. (2002) Wastewater Engineering: Treatment and Reuse, Burton, F. L. (Ed.),  McGraw-Hill Science/Engineering/Math (Publs.), 4th Edition, 1848 pp (ISBN 978 0070418783)


Teaching method

The learning methodologies include an oral theme presentation by the teacher, in theoretical sessions, and its discussion and analysis during or at the presentation´s ending. The theoretical-practical sessions are dedicated to the analysis of case studies and to solve exercises/problems, in order to consolidate the acquired knowledge and the individual and group´s presentation and reasoning by the students’ proactive participation.

Evaluation method

According the FCT´s assessment rules the curricular unit has a continuous assessment realized at three assessed times. Each assessed time is constituted by an individual test with a 33,33% contribution to final classification. The non-approved students do a final resort exam. The curricular unit approval, continuous assessment or final exam, requires a minimum classification of 9.5 values (out of 20 values).