The Toray Group implements ongoing initiatives at production sites to reduce sulfur oxide (SOx) emissions by installing desulfurization equipment and switching to cleaner fuels, and reduce chemical oxygen demand (COD) by expanding wastewater treatment facilities.
Air Quality Management
In fiscal 2016, the Toray Group recorded 3,374 tons of SOx emissions (up 6% year-on-year), 2,151 tons of NOx emissions (down 7% year-on-year), and 343 tons of dust emissions (up 4% year-on-year). SOx and dust emissions increased due to higher consumption of heavy oil for power generation at group companies outside Japan, despite the reduced emissions from decommissioning power generation equipment and using more low-sulfur coal. The decrease in NOx emissions (down 7% year-on-year) was due to the deployment of gas cogeneration facilities at Toray's Mishima Plant.
Atmospheric Emissions (SOx)
Atmospheric Emissions (NOx)
Atmospheric Emissions (Dust)
Water Quality Management
In fiscal 2016, the Toray Group recorded 927 tons of BOD emissions (down 5% year-on-year) and 2,317 tons of COD emissions (down 3% year-on-year). BOD and COD emissions were down due to enhanced wastewater treatment at Toray's Tokai Plant.
Water Emissions (BOD)
Water Emissions (COD)
In fiscal 2016, the Group expanded its wastewater treatment facilities at the Ehime Plant of Toray and the Fukui Plant of Dow Corning Toray Co., Ltd. These upgrades further stabilized wastewater treatment to realize benefits.
The Group brings together wastewater managers every year to share and discuss strategies for enhancing wastewater management at production sites. The fiscal 2016 meeting was attended by 22 persons from nine Toray plants and eight persons from six group companies in Japan.