The Oji Group strives to reduce water intake by improving operation and water recycling and identifying regions with high water-related risk. We also incorporate water intake and water intake intensity taken into our annual plans and carry out regular management. We will continue to promote Group-wide initiatives for the effective utilization of water resources and the reduction of water intake.
Reduce water consumption intensity (unit per production) by 6% or more compared to FY2018
The Oji Group uses WRI Aqueduct* to assess water risks in projects, new business, an existing business. In existing businesses, the Group identifies relationships between water stress levels and water resource inputs at all manufacturing sites of consolidated subsidiaries.
Water consumption in areas with low water risk accounts for 99% of total water consumption and for 98% of total production.
The paper and pulp business accounts for 84%, and the corrugated board processing business accounts for 15% of total water consumption in these areas.
On the other hand, water consumption in areas with high water risk, there is no pulp manufacturing and mainly paper processing manufacturing, and paper processing manufacturing account for 1% of each total water consumption and total production.
The Oji Group is implementing PDCA by incorporating the reduction of water resources into the ISO14001 target, including areas with high water risk.
Each business site is continuously working on water recycling, stable operations, and efficient water use in order to reduce water intake and consumption. Costs associated with water risk reduction in fiscal 2020 were 6,056 million yen, and investments including research and development costs were 675 million yen.
Water Risk Assessment
|Overall water assessment
(water stress level)
|Number of business sites||①Water intake
|Low to medium (10-20%)||114||313,101||44%||298,576||44%||14,525||42%||5,271||37%|
|Medium to high (20-40%)||93||117,337||17%||111,574||17%||5,763||17%||2,521||18%|
|Extremely high (>80%)||7||155||0%||86||0%||69||0%||87||1%|
Water resources used in the manufacturing process are purified. By returning approximately 95% of the water we take into rivers and the ocean, we are working to reduce the environmental impact caused by the depletion of water resources.
A large amount of water is required for the manufacture of paper and pulp. But the Oji Group is reducing water consumption*1 by improving operations and reducing the amount of water intake by treating and reusing (recycling) water after use.
The paper mill maintains a 93% recycling rate by reusing (through cascading processes) and recycling the water it takes in without waste. In the paper-making process, we also recover raw materials (such as fine fibers) contained in the water used to dilute the pulp when it is recovered and reuse the raw materials.
Recovery and effective utilization of cooling water
New installation of water treatment facilities that enable recycling of previously unused wastewater generated in various manufacturing processes and other measures.
Through water recycling and water saving efforts, the Oji Group purifies water after it has been used in various treatment processes and returns 95% of the water taken to rivers and the sea. Water consumption is as follows:
Water consumption and intensity
|Water consumption (thousand m3)||27,470||27,264||31,907||35,659||34,333|
|Water consumption intensity (m3/t-production)||1.75||1.71||2.00||2.30||2.40|
|Water consumption intensity (m3/ million yen - sales)||19.08||18.35||20.57||23.65||25.26|