Construction of WWTP for wastewater treatment at Industrial Area of Thisvi in ​​Voiotia to serve all of its employees’ needs. (Maximum population of 700 people). The study and design of the plant was to allow the expansion of the facility in the future depending on the development of the Industrial Zone

Method of treatment is the activated sludge system with extended aeration with simultaneous full stabilization of sludge and decontamination of treated wastes.The wastes that will be processed from the unit are sewage collected from a total of 22 tanks of Thisvi Industrial Area.