2017 12 12

The Maintenance Agreement for 2017-2018 with Ekibastuz GRES-1 is signed

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At the facility, Jurby WaterTech International's technicians performed a range of works on chemical cleaning of membranes of ultrafiltration plants for recovery of operating characteristics and correction of water-chemical regime.

In 2012, Jurby WaterTech International entered into agreement for performance of works on “Reconstruction and modernization of water treatment plants for needs of Ekibastuz GRES-1 named after Bulat Nurzhanov”. The point is that rebuilding of boilers at GRES-1 involves the necessity of improving the quality of water as related to the main parameters: electrical conductivity and content of Na and SiO2.

The choice of technology able to take into account the requirements for maximum level of automation of technological processes, continuous rise in prices for chemicals and ion-exchange materials, successive increase of the salt content in raw water, as well as, to provide the low-cost production of demineralised water is the key point in retrofitting of existing equipment. The result of joint efforts of technical specialists of Ekibastuz GRES-1 and Jurby WaterTech International’s experts was the choice of the membrane water treatment technologies that will allow take all stated requirements into consideration.

Taking due account of specific features of the design, technical experts of Jurby WaterTech International have developed the following process flow diagrams:

  • coagulation of river water in reconstructed clarifiers: mechanical filtration - ultrafiltration- reverse osmosis, stages I and II – electrodeionization (for make up of boilers, capacity of 400 m3/h);
  • water intake from clarified water tanks (after ultrafiltration) – a single-stage counter-current softening plant according to technology similar to «UPCORE» technology (for makeup of heat network, capacity of 50 m3/h and for makeup of start boilers, capacity of 50 m3/h);
  • water intake from clarified water tanks (after ultrafiltration) – decontamination (for portable water supply, capacity of 50 m3/h).

The project “Reconstruction and modernization of water treatment plants for needs of Ekibastuz GRES-1 named after Bulat Nurzhanov” is modern and unique in terms of its technological efficiency and low cost production of demineralised water under conditions of successive increase of the salt content in raw water. It’s worth mentioning, that Jurby WaterTech International completed the implementation of project “Reconstruction and modernization of water treatment plants for needs of Ekibastuz Power Plant GRES-1 named after Bulat Nurzhanov” (Ekibastuz, the Republic of Kazakhstan). At the same year company has shipped the equipment for a water treatment complex under project Ekibastuz GRES-2 (Pavlodar Region, Kazakhstan) which produced at Jurby WaterTech International’s manufacturing facilities (Kaunas, Lithuania). Manufacture of equipment for this GRES power plant was one of the largest projects of Jurby WaterTech International in 2013. The number of freight cars with equipment was total to 44.

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