Exercises in Wastewaters Treatment

Code

Course teacher

Associate teachers

Status of the course

Course objectives

Students get to know the types of wastewaters, the indicators of their quality, wastewater treatments and characterization of bioactive sludge.

Course enrolment requirements and entry competences required for the course

Enrolled in or passed the cours Wastewaters Treatment

Learning outcomes expected at the level of the course (4 to 10 learning outcomes)

It is expected that the outcome of learning to provide knowledge about:
- methods and techniques of identification of harmful substances in waste water
- selection procedures and methods for wastewater treatment
- the impact of various factors on the efficiency of the treatment process wastewater
- the calculation of unit capacity
- monitoring of biological treatment of wastewater sludge through the sudge index.

Course content broken down in detail by weekly class schedule (syllabus)

Exercise 1. Determination of optimal pH for the precipitation of Zn(OH)2. The construction of solubility diagrams for the system Zn(OH)2-H2O.
Exercise 2. Removal of zinc from wastewater by chemical precipitation. Calculation of addition of hydrated lime and material balance.
Exercise 3. Testing of coagulation / flocculation of dispersed colloidal particles in water JAR-test. Determination of the optimal addition of coagulant / flocculant.
Exercise 4. Characterization of waste water using oxygen as an indicator. Determination of chemical oxygen demand (COD) using Dichromate method.
Exercise 5. Characterization of waste water using oxygen as an indicator. Determination of biochemical oxygen demand (BOD) using Winkler method.
Exercise 6. Sedimentation of bioactive sludge in Imhofe and determination of mixed liquor suspended solids (MLSS) of active sludge.
Fieldtrips for visiting of wastewater treatment plants.

Format of instruction:

Student responsibilities

Exercise 1. Determination of optimal pH for the precipitation of Zn(OH)2. The construction of solubility diagrams for the system Zn(OH)2-H2O.
Exercise 2. Removal of zinc from wastewater by chemical precipitation. Calculation of addition of hydrated lime and material balance.
Exercise 3. Testing of coagulation / flocculation of dispersed colloidal particles in water JAR-test. Determination of the optimal addition of coagulant / flocculant.
Exercise 4. Characterization of waste water using oxygen as an indicator. Determination of chemical oxygen demand (COD) using Dichromate method.
Exercise 5. Characterization of waste water using oxygen as an indicator. Determination of biochemical oxygen demand (BOD) using Winkler method.
Exercise 6. Sedimentation of bioactive sludge in Imhofe and determination of mixed liquor suspended solids (MLSS) of active sludge.
Fieldtrips for visiting of wastewater treatment plants.