Date of completion: 2008
The objective of the reconstruction was, apart from the modernization of existing objects of the plant, mainly intensification of the biological treatment with an emphasis on a higher biological elimination of nutrients for the expected capacity in the year 2030.
Mechanical treatment consis of thick pre-treatment and a radial sedimentation tank. Biological stage of WWTP Piešťany consists of a nitrification - denitrification set, anaerobic stage and regeneration of sludge. Phosphate precipitation is ensured by dosing ferric sulfate.
Sludge treatment consists of:
The produced biogas heats the WWTP buildings.
The management of biological and chemical processes is supported by an installation of continual monitoring of:
Čovspol ensured project documentation on all levels, engineering in reference to construction permissions, realization of technological and electro technical parts, developing of operation and manipulation manuals, start-up of the WWTP, managing and evaluating pilot tests .
WWTP Piešťany (70 500 PE) was reconstructed under the project "Piešťany - sewage reconstruction and reconstruction of WWTP - 1st part - Modernisation and expansion of WWTP".
The cost of the entire construction was in the amount of 5 921 416 €.