Waste water management
All the factories and subsidiaries have granted government approved “water pollution prevention measures” and “permit for effluent”, as well as setup wastewater treatment facilities based on the prevention measures. All the wastewater treatment facilities are operated in accordance to the prevention measures and the amount and quality of the effluent are regularly tested and reported to the authorities. The rest results are all below the effluent standard, therefore the effluent from Tatung will not have significant impacts to the biodiversity of the nearby habitats and the recipient water bodies.
Wastewater treatment and effluent status in 2021
||Average COD concentration (mg/L)
||Average Suspended substances concentration (mg/L)
||Amount of effluent (M³)
||Recipient water body
||Effluent reused by others
||Factories setup wastewater treatment facilities in accordance to the requirements of the regulations.
||New Street River
|Taoyuan Wires and Cables Plant
||New Street River
|Taoyuan 1st Plant
||Old Street River
Note: The data is collected from EPA’s declaration system Effluent standard for COD: 100 mg/L, SS: 30 mg/L.
Management on the air pollutants emissions
The main air pollutants from the factories are NOx, SOx, and VOC. Tatung declares the amount of emissions and pays air pollution control fees to the authority. The emissions of VOC have reduced gradually year by year and the emissions of SOx have slightly increased. The reason could be more diesels were consumed by RTO (the treatment facility that eliminate VOCs by combustion) in the factories.
Tatung sets up and operates air pollutant treatment facilities in the factories in accordance to the regulation. Pollutant concentration is regularly tested and met the standard. In addition to optimize the air quality and reduce the impact to the surrounding environment around the factories, we have implemented pollutant treatment facilities with higher VOCs removal efficiency, such as RTO (Regenerative Thermal Oxidizer) in the past few years.
▲ Amount of NOx and SOx emissions
▲ Amount of VOC emissions