Συντάχθηκε 10-11-2026 08:32
Τόπος: Κ2 - Κτίριο ΧΗΜΗΠΕΡ, Κ2.Α.7
Σύνδεσμος τηλεδιάσκεψης
Έναρξη: 11/11/2026 14:15
Λήξη: 11/11/2026 15:15
ANNOUNCEMENT OF PRESENTATION OF POSTGRADUATE THESIS
(for the website)
First Name/Surname – Faith Natalie Waringa.
Student Identification Number - 2024057023
Date: 11th November 2026.
Time: 14:15
Room / Zoom Link: Join Zoom Meeting https://tuc-gr.zoom.us/j/87189374050?pwd=LytpSFVoaHNuaGVsVUZkemJTdENkQT09
Meeting ID: 871 8937 4050
Password: 788241
Title: “Assessment of pilot constructed wetlands with novel substrate media”
Supervisor: Assoc Prof Alexandros Stefanakis
Three-member committee:
1. Assoc Prof Michalis Fountoulakis
2. Asst Prof Nikos Diangelakis
3. Prof Danai Venieri (Alternate Member)
Abstract:
As water demand increases, there is a growing push for water reuse and for reliable, clean, and sustainable water supplies. This study assessed four pilot vertical-flow constructed wetlands (VFCWs) at the Chania Municipal wastewater treatment plant in Chania, Greece, as a sustainable, potentially low-cost alternative to conventional treatment. The systems—Planted Gravel (PG), Planted Gravel and Biochar (PGB), Planted Plastics and Biochar (PPB), and Planted Plastics (PP)—used gravel, recycled HDPE pieces, and biochar produced from coconut shells and sludge; all were planted with giant reed (Arundo donax) and common reed (Phragmites australis). Fed with primary sedimentation effluent at 200 L per feeding day, divided into eight feedings, the wetlands operated on alternating feeding and resting days. Samples were collected every 14 days from November 2025 to August 2026 and analyzed for physicochemical properties, including pH, electrical conductivity, suspended solids, organic matter, and nutrients. Removal efficiencies varied by substrate and parameter, while the systems remained steady despite seasonal fluctuations in influent quality. Gravel achieved the highest average removal rates overall, although Gravel and Biochar outperformed Gravel alone for some parameters; Plastics alone performed better than Plastics and Biochar. The findings confirm that constructed wetlands are a viable sustainable treatment option, while indicating that the tested novel substrates did not generally match gravel performance and that their design, operation, and management may need further optimization.
