Courses

Technology and Quality Control of Water

General

Course Contents

  • Water resources. Water cycle and water management.
  • Physical and chemical characteristics of water. organic matter, hardness, alkalinity, and solids content.
  • Design of water treatment processes.
  • Solids separation principles: sedimentation, filtration.
  • Design of sedimentation tanks.
  • Desing of filtration units: filter beds.
  • Coagulation and flocculation: Mechanisms of action, organic and inorganic coagulants, stages of operation, parameters affecting performance.
  • Removal of organic pollutants: activated carbon adsorption, batch and column operation, activated carbon beds and filters.
  • Hardness removal.
  • Membrane separation for drinking water treatment.
  • Ion exchange processes: resins and design of resin filters.
  • Water disinfection: disinfection principles, conventional and advanced methods of water disinfection.

Laboratory exercises:

  • Water quality parameters: pH, hardness, alkalinity, organic matter -total organic carbon.
  • Coagulation flocculation: selection of suitable coagulant. evaluation of process performance and identification of parameters effect: pH, coagulant dose.
  • Activated carbon adsorption: adsorption isotherms. kinetic of adsorption, activated carbon column performance.
  • Sedimentation principles: estimation of sedimentation rate and solids removal rate.
  • Water disinfection: ozone treatment.

Educational Goals

The course aims to achieve the following learning outcomes for students:

  • acquiring theoretical and applied knowledge for the design, installation, operation, monitoring and optimization of systems used for the treatment of water with emphasis on the specific requirements of food industries;
  • understanding the techniques utilized for the examination of water quality;
  • understanding the mechanisms and the operation principles of the processes used in wastewater treatment;
  • being able to evaluate operation problems of these units and adoption of appropriate measures to address them;
  • acquiring knowledge in the operation and evaluation of the performance of water treatment systems.

General Skills

  • Analyzing, interpreting and synthesizing empirical data and information obtained from experimental setups.
  • Adaptation to existing conditions.
  • Advancing analytical, productive and inductive thinking.
  • Working in an interdisciplinary environment.
  • Autonomous work.
  • Work in teams.
  • Decision making.

Teaching Methods

Face to face:

  • Lectures (theory and exercises) in the classroom.
  • Laboratory exercises in groups in pilot scale devices.

Use of ICT means

  • Lectures with PowerPoint slides using PC and projector.
  • Notes, solved and unsolved problems in electronic format.
  • Posting course material and communicating with students on the online platform.
  • Use of electronic devices for retrieving and recording experimental data (data logging) in the laboratory.

Teaching Organization

ActivitySemester workload
Lectures112.5
Laboratory Exercises75
Total187.5

Students Evaluation

Evaluation methods:

  • Compulsory attendance at (at least) 90% of the laboratory exercises.
  • Written final exams in the theoretical part of the course with problem solving and comprehension/judgment questions (70% of the final grade).
  • Final written exams in the laboratory part of the course with multiple choice, short development and problem-solving questions (20% of the final grade).
  • Written assignments in laboratory exercises (10% of the final grade).

The evaluation criteria are presented and analyzed to the students at the beginning of the semester.

Recommended Bibliography

  1. Μ. Μήτρακας, Ποιοτικά χαρακτηριστικά και επεξεργασία νερού, Εκδόσεις Τζιόλα, Θεσσαλονίκη, 2001.
  2. Α. Σ. Αυλωνίτης, Εισαγωγή στην τεχνολογία νερού και αφαλάτωσης, Εκδόσεις Ίων, Θεσσαλονίκη, 2006.
  3. Rump H.H. and Krist H., Lab Manual for the Examination of Water, WasteWater, Soil, VCH, Germany.
  4. American Public Health Association, Standard Methods for the Examination of Water and WasteWater, APHA, USA.
  5. World Health Organization, Guidelines for Drinking Water Quality, WHO, Geneva.

Related Research Journals

  1. Desalination and Water treatment Journal.