THE NEW VALUE FRONTIER

Water Risk Response

Water is a precious natural resource. The importance of water resources, and water risk, is increasing in some parts of the world because of the ongoing impacts of climate change.
Water is a precious resource, and the Kyocera Group carefully manages its intake and release, as well as quantitatively assessing water risk at each production site using data from the Aqueduct Water Risk Atlas* such as water stress level, amount of water use, unit price of water, and local-level water stress assessment results.
As a result of the FY2021 water stress assessment, there were 5 sites with high water risk, and the total water consumption was 4,218,000 m3, accounting for 25% of water consumption in FY2021.

Aqueduct Water Risk Atlas: Water risk data published by the World Resources Institute (WRI)

Targets for FY2021 Implement measures to reduce water consumption by 25,000 m3.
(This target is applied to production sites with high water risk based on a water risk assessment.)
Achievements in Fiscal Year 2020 Implement measures to reduce water consumption by 129,399 m3.
Targets for FY2021 Implement measures to reduce water consumption by 61,000 m3.
(This target is applied to production sites with high water risk based on a water risk assessment.)

Water Consumption

Water Consumption Graph

As a result of reviewing the data of FY2020, the figures have been revised.

Water Conservation Efforts

Reusing Air-Conditioning Cold Water

The Toyama Nyuzen Plant uses groundwater as a cold-water source for air conditioning. The cold water had previously been used for cooling compressors or as supplementary water for the cooling towers. However, a new process has reduced water consumption by reusing the air-conditioning water as rinse water and coolant in manufacturing processes.

Reduced Water Consumption

180 thousand m3/year

● Reduced Water Consumption Diagram
Water recycling system

Reusing Process Wastewater

KYOCERA Document Technology (Dongguan) Co., Ltd. reduced water consumption by approx. 1,800 m3 per month by installing greywater treatment equipment in August 2018 to neutralize wastewater from its manufacturing processes. The greywater is then stored in a tank and reused as an air conditioner coolant. The reuse of greywater was expanded to buildings B, C, D, and A2 from May 2019, enabling an overall monthly average reduction of approx. 4,600 m3 in wastewater discharge.

Reduced Water Consumption

55,200 m3/year

Greywater treatment equipment
Greywater treatment equipment