Water and Wastewater Treatment (MLJ610)

By completion of the course the student should know fundamental principles for treatment methods for potable water and municipal wastewater. This includes quantiotative analysis based on mass and energy balances for design and operation of mechanical, chemical and biological wastewater treatment unit processes. Students will also be able to evaluate sound applications and processing of produced solids, and know the principles for solids management in the circular bioeconomy.

Course description for study year 2024-2025. Please note that changes may occur.


Course code




Credits (ECTS)


Semester tution start


Number of semesters


Exam semester


Language of instruction



Fundamental and advanced knowledge of mechanisms for biological, chemical and mechanical methods for treatment of industrial process water, potable- and municipal wastewater is covered. Through lectures, coursework and case studies students will gain knowledge and competences to be used for design calculations and operational optimization of primary, secondary, tertiary and advanced tertiary treatment processes based on first principles.

Learning outcome

The students gain knowledge on the basic principles of mechanical, chemical and biological methods for treatment of drinking and different types of wastewater. The student is able to apply the most common parameters associated with wastewater treatment (SS, BOD, N, P, color, total and coliform bacteria) for characterization and treatment evaluation of different wastewater methods. Furthermore, students will be able to design and dimension wastewater treatment unit processes based on mass- and energy balances, including steady state modelling. This includes selected classes of sedimentation, gas absorption, coagulation and flocculation, disinfection, advanced oxidation, biological treatment by suspended and biofilm biomass, aerobic and anaerobic sludge treatment. Case studies from industrial water and wastewater treatment will be analyzed by students (e.g. recirculated aquaculture systems, food industry wastewater processing, oil and gas industrial effluents and solid waste treatment wastewater). Students will also be able to evaluate sound applications and processing of produced solids, and know the principles for solids management in the circular bioeconomy.

Required prerequisite knowledge


Recommended prerequisites

MLJ530 Environmental Process Analysis
Basic chemistry, mathematics and physics as required for admission to MSc Environmental Engineering.


Form of assessment Weight Duration Marks Aid
Written exam 1/1 5 Hours Letter grades - 1), Calculator ,

1) Skriftlig materiale

The exam is by pen and paper.

Course teacher(s)

Course coordinator:

Roald Kommedal

Head of Department:

Ingunn Westvik Jolma

Course teacher:

Ilke Pala Ozkok

Course teacher:

Leif Ydstebø

Method of work

6 hours lectures per week, exercises and individual readings.Industrial site visits and case studies.

Overlapping courses

Course Reduction (SP)
Water Technology and Membranes (MET190_1) 10
Membrane technology (MOT230_1) 10
Membrane Technology 1 (MOT500_1) 5
Wastewater Treatment (MLJ620_1) 5

Open for

Master level studies at the Faculty of Science and Technology.

Course assessment

There must be an early dialogue between the course supervisor, the student union representative and the students. The purpose is feedback from the students for changes and adjustments in the course for the current semester.In addition, a digital subject evaluation must be carried out at least every three years. Its purpose is to gather the students experiences with the course.


Search for literature in Leganto