Development of the Sopron and Fertőrákos sewage treatment plants

The project included: technological modernization of the sewage water plant while maintaining plant operation and increasing the dry weather flow daily capacity from 15,000 m3 to 21,000 m3; Sludge management and composting of the stabilized sludge with biogas recycling; The sewage treatment plant of Fertőrákos was converted into a pre-treatment and compensation tank and the partially pre-treated sewage water was discharged to the Sopron sewage treatment plant.

Sewage treatment plant of Sopron:

Water treatment units:
Building of screens, sand traps, distribution structure (two units in parallel)
Building of a storm water storage
Building primary sedimentation
Building of biological treatment structures I and II
Construction of secondary clarifier unit no. 1 and 2 with scum removal shaft
Construction of a scum and excess activated sludge removal gate-valve shaft
Construction of a chemical dosing and storage room
Conversion of the existing pumping station to MOBA drain water pumping station
Construction of a blower station
Construction of a ferrate solution storage facility
Sludge treatment units:
Construction of excess sludge thickening and dewatering structure, with boiler and gas engine station,
Construction of 2 digesters with a locking chamber, heat exchanger station and staircase
Construction of a gas tank of 1,030 m3 capacity with gas flare
Construction of a receiving station for truck-carried sewage water and excess activated sludge
Construction of the industrial (treated) water supply system
Composting units at the plant: (Total area of composting spaces: 5.147 m2)
Other structures:
Implementation of a transformer station
Electricity supply and control
Technological mechanics
Technological pipes and shafts within the premises of the plant
Road construction, landscaping