Ash produced as a by-product in electricity generation in EPS thermal power plants has a great use value. Due to its interaction with cement as binding material it increases the quality of concrete and enables significant savings, said Milena Đakonović, Head of Division for Energy Efficiency in EPS during International Conference Ash, Slag and Gypsum – raw material for circular green economy organized by Balkan Energy portal.
- In order to enable an easier use of ash, EPS introduced a system of thick slurry collection, transportation and disposal in TPP Kostolac A and B, Nikola Tesla B and Kolubara A5, and the project has begun in TENT A. We built silos and a wharf was built in Kostolac where it is possible to takeover the ash – said Đakonović.
First highly efficient desulphurization system through a lime-based thin procedure was built in TPP Kostolac B, recalled Željko Ilić, Energy Production Director in TE-KO Kostolac.
- The plant was put in operation in 2020. It enables reduction of NOx emissions, almost 20 times, and reduction of particulate matter emissions, five times. The gypsum produced as a by-product in FGD plant was registered in By-products Register and in European Register of Chemicals (REACH), which enables sale of gypsum to interested customers – said Ilić. Until the end of October 2023, 117,000 tons of gypsum had been produced in total.
Dejan Popović, President of the Counsil of the Energy Agency of the Republic of Serbia, expects the gypsum production in EPS to be around 400 thousand tons when B3 unit becomes operational in TPP Kostolac and when TENT A3-A6 desulphurization plant is put in operation.
