Discharge Management of VOCs

Discharge Management of VOCs

VOCs mainly come from processes (discharge channels), storage tanks, loading operations, wastewater treatment area, and grease-water separation pond, waste gas burning tower, and equipment elements. In 2023, total production capacity was 30,234.8 thousand tons, and VOCs discharge per unit product decreased 6.71% compared with the previous year. In the future, we will continue to increase air pollution reduction measures (oil gas collection from inner float tank to CFB or oil gas recycling facilities), and continue to reduce VOCs discharge per unit product.

Monitoring of Moving Pollution Sources

To maintain the air quality in Yunlin County, we require diesel vehicles that enter Mailiao Industrial Park to submit exhaust inspection qualification documents when applying for an entry permit. If a diesel vehicle is reported by the competent authority due to its exhaust, the vendor must be re-inspected to obtain a qualification document, otherwise the vehicle will be prohibited from entering the premises. According to diesel vehicle exhaust inspection statistics of the Environmental Protection Bureau of Yunlin County, of the 212 diesel vehicles stopped on roads, 82 were inspected (the exhaust inspection was performed if the vehicle has not yet been inspected for the year) near Mailiao Industrial Park in 2023, 0 did not conform to standards; the non-conforming rate of inspections was 0%, and the non-conforming rate of stopped vehicles was 0%. Results of stopping diesel vehicles in recent years are as follows: