Explanatory note to the report on industrial environmental control Ekibastuzskaya GRES-1 named after Bulat Nurzhanov LLP for the 1st quarter of 2023

Альмира Ауелбаева May 23, 2023

Explanatory note to the report on industrial environmental control Ekibastuzskaya GRES-1 named after Bulat Nurzhanov LLP for the 1st quarter of 2023

Ekibastuzskaya GRES-1 LLP named after Bulata Nurzhanova" is an operating electric power station with a design installed electric capacity of 4000 MW (8 power units of 500 MW each, en. unit of station No. 1 for restoration work). The installed capacity of the station is 3,500 MW. The operating mode of the power plant is round–the-clock, year-round.

The main fuel of power boilers is high–ash coal from Ekibastuz deposits, fuel oil of the M-100 brand is the kindling fuel. Flue gas emissions from the power boilers of the station are emitted through two pipes No. 1 and No. 2, 300 m and 330 m high, with a mouth diameter of 13.26 m and 11.9 m, respectively.

To reduce the content of suspended substances in flue gases emitted into the atmosphere by power units of the №3, №4, №5, №6 equipped with electric filters of the LodgeCottrel type, at the power unit of stations No. 2, No. 7, No. 8 of Alstompauerstavan CJSC.

Suppression (reduction of concentration) of nitrogen oxides at the plant is carried out by optimizing the process of burning fuel in boilers (regime-technological methods). Flue gases are not cleaned from gaseous substances at the station.

In the 1st quarter of 2023, 6,010,937,120 kWh of electric energy was generated.

 

Atmospheric air. The control of emissions into the atmosphere is carried out in accordance with the Program of Industrial Environmental Control.

Control over the composition of atmospheric air at the border of the sanitary protection zone of the station is carried out with the involvement of an accredited sanitary and preventive laboratory of Promservice-Otan LLP.

The content of sulfur dioxide, nitrogen oxides and carbon monoxide is determined in the selected samples.

According to the results of instrumental measurements carried out during the reporting period, the concentrations of controlled substances were within the normative values.

The ash collection unit is tested annually at each working unit of the station. A technical report is compiled based on the test results.

Control over the standards of pollutants is carried out in accordance with the project "Standards of permissible emissions" for 2023.

Based on the environmental impact permit No.: KZ95VCZ03121305 dated 11/28/2022, Ekibastuzskaya GRES-1 named after Bulat Nurzhanov LLP is allowed to emit pollutants in volumes not exceeding 257,999.13,752 tons in 2023.

Emissions of pollutants for the 1st quarter of 2023 amounted to

According to the results of instrumental and computational methods for determining emissions of pollutants, no exceedances of MPC and MPV were detected.

 

Monitoring of water resources. The source of water supply is the K.Satpayev canal, on which there are two water intakes: one water outlet – to recharge the cooling reservoir, the second water outlet – for households.household needs and preparation of chemically desalinated and chemically purified water for power and hot water boilers.

Water metering through the HVO head is carried out using water metering devices installed at the entrance of the VPU, HVO- I and II stages of the starting boiler house and the drinking water preparation unit "Jet". Daily accounting of the amount of water consumption and sanitation is carried out, deviations from specific norms were not observed.

Special water use at the station is carried out on the basis of permit no. KZ86VTE00079542 Ertis series.

For the station, a reverse cooling system with a liquid reservoir-the Zhengeldy cooler was adopted.

Sampling and analysis of surface water samples (reservoir, canal, recycled water, GZU) is carried out monthly with the involvement of an accredited sanitary and preventive laboratory of Promservice-Otan LLP.

 

Monitoring of production waste. The main type of production waste at the enterprise (in the process of burning coal in the furnaces of boilers) is ash and slag waste, which is sent by hydraulic transport to the ash dump in accordance with the project documents.

The ash dump, located in the drainless basin of the previously dried-up bitter-salty lake Karasor, is located 22 km east of the station site.

Monthly accounting of the formation and placement of ash and slag waste and production waste is carried out.

Based on the environmental impact permit No.: KZ95VCZ03121305 dated 11/28/2022, Ekibastuzskaya GRES-1 named after Bulat Nurzhanov LLP is allowed to dispose of production and consumption waste in volumes not exceeding 5,654,952,000 tons in 2023.

The volume of disposed waste for the 1st quarter of 2023 amounted to:

Soil monitoring.

Sampling and analysis of soil samples at the border of the sanitary protection zone of the power plant, ash dump and storage (landfill) of waste is planned in the III quarter of 2023 on the basis of an agreement with the SPL of Promservice-Otan LLP.

Sampling and analysis of samples was carried out at 12 stationary points in accordance with the current GOST standards.

• The boundary of the SPZ of the ash dump – 5 points;

• The boundary of the SPZ of the storage (landfill) of waste – 4 points;

• The border of the SPZ power plant – 3 points;