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At Hanwha Techwin, we exercise the utmost vigilance to prevent chemicals stored at our plant from releasing toxic air pollutants into the environment. All storage tanks used for hazardous chemical substances are equipped with an air cleaning unit, and emissions of toxic gases are minimized, using submerged injection methods.
Sulphuric acid, previously used as a pH adjustment agent during oxidation of cyanide-contaminated water, has now been replaced by aluminum sulfate, a substance significantly less harmful to human health. The use of aluminum sulfate has also contributed toward greater stability of our wastewater treatment system.
To improve our response capability to accidents at our indoor chemical substance storage facilities, we set up surveillance cameras, operating around-the-clock, assisting and complementing human surveillance efforts. Our regularly-scheduled drills are conducted with an emergency scenario, so that we may swiftly intervene in case of an accident.