Taiwan: Discharge from stationary pollution sources

Programs to reduce toxic emissions and waste in core operations 

Asia Cement controls the rear end of the pollution through high efficient dust collection equipment, meanwhile, it selects good quality Materials (fuel) (such as high quslity limestone and low sulfur coal) to reduce the air pollution emission from the source. In the recent years, the emission values of NOx, SOx and particle pollutants from Asia Cement and subsidiaries are lower than the criteria required by the law and regulations.

In Asia Cement, only Hualien Plant uses rotary kiln at present time. Its air pollution matters include particulate matter (PM), SOx and NOx. Hualien Plant regularly conducts management level review meeting on environmental management system to evaluate and make decisions on various environmental improvement planning and scheduling, setting the target of emission reduction, and submitting to Corporate Sustainability Committee. The emissions of various pollution matters are calculated based on the emission of each unit of cementitious materials, and the feasible target of emission reduction is evaluated based on current air pollution prevention equipment and the future planned air pollution improvement measures.

Discharge from stationary pollution sources
 

Record of Achieving Toxic Emissions Targets 
 

The Emission of Ozone Depleting Substances (ODS)

Most of the Freon use are R-134a and environmentally friendly Freon R-410a. Currently, only Hualien Plant and Chiahui Power use a small volume of ODS R-22 (Ozone Depletion Potential 0.055) in water cooler and building’s air conditioners. Environmentally friendly Freon has been successively used for replacement during machine repairs. In 2022, the emission of R-22 was calculated to be equivalent to 1.15kg of CFC-11 (based on the Freon leakage emission factor 8.5% listed in GHG emission coefficients management table).