Constructed wetlands for wastewater and activated sludge treatment in north Greece: a review

摘要

Constructed wetlands used for the treatment of urban, industrial and agricultural wastewaternhave become very popular treatment systems all over the world. In Greece, these systems arennot very common, although the climate is favourable for their use. During recent years, therenhave been several attempts for the implementation of these systems in Greece, which include,namong others, pilot-scale systems used for research, and full-scale systems designed and/ornconstructed to serve settlements or families. The purpose of this paper is the presentation ofnsystems operating in Northern Greece, which have been studied by the Laboratory of EcologicalnEngineering and Technology of Democritus University of Thrace and others. A comparison isnmade of different system types, and the effect of various design and operational parameters isnpresented. Current research shows the good and continuous performance of these systems.