The course of " Natural Wastewater Treatment Systems and Effluent Reuse" offers students an in-depth introduction to the concepts wastewater treatment with natural systems and the beneficial effluent reuse. More specifically, topics related to on-site decentralized systems, slow rate systems, rapid infiltration systems, constructed wetlands, and oxidation ponds are covered. In the “Effluent Reuse” section emphasis is given on agricultural reuse, urban applications, soil aquifer treatment systems, environmental applications and on the indirect potable use.                                             

Upon successful completion of this course the students will acquire new knowledge and specific skills on the following subjects:

• Will have obtained knowledge on the treatment processes operating in the individual systems
• Will gain knowledge on designing natural treatment systems
• Will be able to plan effluent reuse applications with emphasis of landscape and crop  irrigation and on soil aquifer treatment systems

• Review, analyze and synthesize data and information, with the use of necessary technologies
• Adaptation ability
• Decision making
• Protect natural environment
• Advance free, creative and causative thinking

1. General aspects of wastewater treatment
2. General aspects of Natural wastewater treatment systems
3. Slow rate treatment systems (type 1 and 2)
4. Soil infiltration systems
5. Constructed wetlands (surface and subsurface flow)
6. Oxidation and maturation ponds
7. General aspects of effluent reuse (drivers, current status, future trends)
8. Effluent reuse applications (irrigation, urban uses, groundwater recharge, environmental applications, indirect potable reuse)
9. Regulations and guidelines of effluent reuse

Use of Information and Communication Technology

• Specialized software
• Power point presentations
• E-class support

Assessment Method

Ι. Written final examination (100%).
- Questions of theoretical knowledge.
- Theoretical problems to be resolved.

• Angelakis A. and G. Tchobanoglous. Natural Wastewater Treatment Systems, Effluent Reuse, and Effluent Disposal.  University Press, FORTH.