Exercises in Wastewaters Treatment

NAME OF THE COURSE

Code

KTJ310

Year of study

Course teacher

Prof Nediljka Vukojević Medvidović

Credits (ECTS)

2.0

Associate teachers

Asst Prof Ivona Nuić

Type of instruction (number of hours)

P	S	V	T
0	0	27	3

Status of the course

Mandatory

Percentage of application of e-learning

0 %

COURSE DESCRIPTION

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

Screening student work (name the proportion of ECTS credits for eachactivity so that the total number of ECTS credits is equal to the ECTS value of the course):

Class attendance	0.0	Research	0.0	Practical training	0.0
Experimental work	1.0	Report	0.5
Essay	0.0	Seminar essay	0.0
Tests	0.0	Oral exam	0.5
Written exam	0.0	Project	0.0

Grading and evaluating student work in class and at the final exam

Every laboratory exercises include oral exam before exercise and writing of final report. Passing threshold is also 60%. Rating: 60%-70% - satisfactory, 70%-80% - good, 80%-90% very good, 90%-100% - excellent.

Required literature (available in the library and via other media)

Title	Number of copies in the library	Availability via other media
Laboratorijske vježbe iz kolegija Obrada otpadnih voda (interna skripta)	0	kod nastavnog predavača

Optional literature (at the time of submission of study programme proposal)

D. Hendricks, Water treatment unit processes, Taylor and Francis Group, Boca Raton, 2006.; Metcalf & Eddy, Wastewater Engineering, Irwin McGraw-Hill, New York, 1991; L.D. Benefield, et al., Process Chemistry for Water and Wastewater Treatment, Prentice-Hall Inc., Englewood Cliffs, New Jersey, 1982; S. Tedeschi, Zaštita voda, HDGI, Zagreb, 1997.; B. Tušar, Ispuštanje i pročišćavanje otpadne vode, Croatiaknjiga, Zagreb, 2004.; R.T. Wright and B.J. Nebel, Environmental Science, 9th edition, Prentice Hall Inc, New Jersey, 2004.

Quality assurance methods that ensure the acquisition of exit competences

Quality assurance will be performed at three levels:
(1) University Level; (2) Faculty Level by Quality Control Committee; (3) Lecturer’s Level

Other (as the proposer wishes to add)

Suggestions and reactions of participants during the semester.
Student survey.