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Wastewater Recycling in Greece: The Case of Thessaloniki

Land Reclamation Institute of Thessaloniki, Hellenic Agricultural Organization DEMETER-N.AG.RE.F., 57400 Sindos Thessaloniki, Greece
Institute of Iraklion, Hellenic Agricultural Organization DEMETER-N.AG.RE.F., 71307 Iraklion and Hellenic Water Supply and Sewerage Services Association, 41222 Larissa, Greece
Author to whom correspondence should be addressed.
Sustainability 2014, 6(5), 2876-2892;
Received: 23 January 2014 / Revised: 4 May 2014 / Accepted: 4 May 2014 / Published: 13 May 2014
In Greece, and particularly in many southeastern and island areas, there is severe pressure on water resources, further exacerbated by the high demand of water for tourism and irrigation in summertime. The integration of treated wastewater into water resources management is of paramount importance to meet future demands. Despite this need, only a few projects of effluent reuse have been implemented, most of them being pilot projects of crop or landscape irrigation. The most important projects which are currently in practice are those of Thessaloniki, Chalkida, Malia, Livadia, Amfisa, Kalikratia, and Chersonissos. In Thessaloniki, at the most important wastewater reuse site, the secondary effluent of the city’s Waste Water Treatment Plant (WWTP) (165,000 m3/day) is used for agricultural irrigation after mixing with freshwater at a 1:5 ratio. The main crops irrigated are rice, corn, alfalfa and cotton. A few other projects are under planning, such as that at Iraklion, Agios Nikolaos and several island regions. Finally, it should be mentioned that there are several cases of indirect reuse, especially in central Greece. However, the reuse potential in Greece is limited, since effluent from Athens’s WWTP, serving approximately half of the country’s population, is not economically feasible due to the location of the plant. View Full-Text
Keywords: water recycling; wastewater reuse; wastewater in agriculture, water use in agriculture; agricultural water quality criteria; water reuse in Greece water recycling; wastewater reuse; wastewater in agriculture, water use in agriculture; agricultural water quality criteria; water reuse in Greece
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Ilias, A.; Panoras, A.; Angelakis, A. Wastewater Recycling in Greece: The Case of Thessaloniki. Sustainability 2014, 6, 2876-2892.

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