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Measures on air ambient

Measures on air ambient

BLCP Power Station was designed by using the proven technology to reduce technical risks and to ensure environmental compliance. Major equipments were installed as follows:

  • Installation of burner for reducing oxide of nitrogen (Low NOx burner)
  • Installation of Electrostatic Precipitator; ESP
  • Installation of Flue Gas Desulphurization; FGD and
  • Construction of 200 meters high chimney
For air quality monitoring and checking, BLCP Power Station has also installed an automatic air measuring instrument at the top of the chimney, and set up four Air Quality Monitoring Stations (AQMS) within the specified vicinity of the power station.

BLCP Power Plant controls the sulfur content in coal to maintain low levels at 0.27-0.7%, with an annual average of 0.45%. The plant also controls atmospheric emissions to be better than the government standards as follows:
· Particulate matter at 43 mg/m³, compared to the Pollution Control Department standard of 120 mg/m³, which is 64% better than the standard 
· Sulfur dioxide (SO₂) as specified in the EIA at 262 ppm, compared to the Pollution Control Department standard of 320 ppm, which is 18% better than the standard 
· Nitrogen oxides (NOx) at 241 ppm, compared to the Pollution Control Department standard of 350 ppm, which is 31% better than the standard

Measures on water quality

Measures on water quality

WATER SUPPLY IN THE STATION CAN BE CATEGORIZED INTO 2 TYPES AS FOLLOWS:

  • Fresh water
    It is designed for the usage of electricity generating process, the coal transportation at the coal unloading facilities, the maintenance activities at the coal stockyards, and general usage at offices for employees. The water is also needed at the waste water treatment plant including recycled again for the usage at the coal stockyard.
  • Sea water
    will be pumped in for cooling and sulfur dioxide treatment systems. Two-layer screens (Traveling Screen and Bar Screen) are installed to prevent organisms from entering the cooling system. The velocity of seawater pumped into the cooling system is controlled not to exceed 0.3 meters per second. These screens help any organisms that might slip through to easily exit from the cooling water canal. Additionally, at the cooling water discharge point, an aeration pond has been installed to adjust the temperature and pH value of the water before it is discharged into the sea (temperature < 40°C and pH value ~ 7). The system is regularly inspected with annual equipment maintenance plans established, along with continuous and consistent monitoring of water quality and water temperature in the areas surrounding the BLCP Power Plant.

Coal ash

Coal ash

Regarding Bottom Ash, in February 2025, a Memorandum of Understanding (MOU) was signed between BLCP Power Limited and the Faculty of Architecture, Chulalongkorn University. The collaboration aims to develop 'temperature-reducing bricks' from bottom ash generated during the electricity production process, with the goal of reducing waste and creating products beneficial to society and the environment.

These jointly developed temperature-reducing bricks have special properties that help lower temperatures inside buildings and surrounding areas, save energy, and are environmentally friendly. Additionally, this project aligns with the Circular Economy concept, which focuses on utilizing resources efficiently and sustainably.

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Coal Unloading Facility

Coal Unloading Facility

As a precautious measure, the Station will engage an independent party to perform and check the quality of every shipment of imported bituminous coal. The objective is to ensure full compliance, particularly to sulfur content limit, at the early stage of electricity generation process. During the unloading, water spray equipments are also installed at the unloader hopper in order to prevent dust dispersal.

All coal will be carefully unloaded and transported to the direction of the plant or the coal stockyard, by belt conveyer with wind protection sheet in order to prevent diffusion, spreading of dust, and falling of objects.
Water from spraying will be pumped back for treatment first before being recycling for future usage in order to save operating cost. As a result, water will be wisely used and conserved without need for drainage into the sea. The Station is also required to monitor and to check the quality of sea water around the unloading port on regular basis.

Coal Stockyard

The coal stosck yard has a capacity of 700,000 tons of coal. 10,000 tons are used daily for electricity generation.
After coal is unloaded at the shore, it is transported to the coal yard, which consists of 3 piles. The first 2 piles are used in rotation (Active Stock) for electricity generation, while the last pile serves as a reserve (Dead Stock) that is compacted for use in case of emergency fuel shortage. Additionally, around all 3 coal piles, BLCP Power Plant has implemented strict control measures to reduce environmental impacts as follows:
•Around the coal yard, there are 32 water spray systems installed that can adjust water pressure according to wind strength to prevent dust dispersion or combustion from heat. Water from spraying the coal piles is collected in sedimentation ponds before being recycled for further spraying.
•A wind fence measuring 450 meters long and 6 meters high has been installed to prevent wind from directly hitting the coal yard, thus reducing dust dispersion or combustion from heat.
•Dust measuring devices have been installed in 3 areas: north and south of the coal yard, and at the Takuan-Ao Pradoo community.
•The area underneath the coal yard is lined with high-quality High-Density Polyethylene (HDPE) to prevent water from seeping into the ground. Water from spraying the coal piles is collected in sedimentation ponds before being recycled for further spraying.

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