The curricular unit pursues the following objectives:
Understand the basic concepts of water quality in natural systems (surface and groundwater), considering the natural processes and pollution sources;
Know the physicochemical and microbiological parameters that define the water quality to distinct utilizations;
Know the laboratory procedures for chemical and microbiological analysis for monitoring and assess water quality considering the applicable legal requirements.
Chemical equilibrium. Reversible and irreversible reactions;
Ionic equilibrium, Acid-Base and REDOX;
Water pollution overview: Human activities impacts in water quality;
Chemical parameters and analytical methods;
Legal requirements for drinking water quality and for other uses;
Microorganisms in aquatic environments;
Biological and physiological diversity in aquatic environments;
Microbial growth in solid and liquid media and biofilms. Microbial control populations;
Microbial importance in the biogeochemical cycles;
Waterborne diseases. Indicators of faecal contamination.
1. Effect of temperature and concentration on the equilibrium of reversible reactions;
2. Precipitation, complexation and redox reactions;
3. Odour and flavour determination in human drinking water;
4. Heavy metals concentration;
5. Laboratory security rules in microbiology and aseptic;
6. Manual microorganism counts methods: plating. Most Probable Number (MPN) technique.
Within this subject, organized in lectures and laboratories, the students will receive lectures to introduce basic concepts, followed by individual and/or group research of selected contents to prepare a class discussion, moderated by the teachers. The lectures to solving problems are focused to water chemistry basilar concepts. The evaluation consists of two written tests (mid-term and end of semester) with both theoretical and practical components, and the laboratory reports of practices.
AWWA – American Water Works Association (1998). Standard Methods for the Examination of Water and Wastewater, 20th ed. APHA, WEF, USA.
Boyd, C.E. (2000). Water Quality – An introduction. Kluwer, Países Baixos.
Champman, D. (1996). Water Quality Assessment. 2nd Ed. UNEP/WHO, E&FN Spon, 626pp.
Decreto-Lei n.º 152/2017, de 7 de Dezembro. Qualidade da água para consumo humano.
Mendes, B., Santos Oliveira J.F. (2005). Qualidade da água para consumo humano. Lidel. Lisboa, 640pp.
Mara d. & Horan N. (2003). The Handbook of Water and Wastewater Microbiology. Academic Press, Londres, Reino Unido.
Pepper I.L. & Gerba C.P. (2004). Environmental Microbiology – A Laboratory Manual. 2nd Ed. Elsevier, San Diego, EUA.
Sawyer C., McCarty P. & Parking G.F. (Eds). (2003). Chemistry for Environmental Engineering and Science. 5th Ed. McGraw-Hill Int. Ed. 752pp.
WHO (2011). Guidelines for Drinking-water Quality. 4th Ed. WHO Library Cataloguing-in-Publication data. ISBN 978 92 4 1548151.